| /* |
| * Tiny Code Generator for QEMU |
| * |
| * Copyright (c) 2008 Fabrice Bellard |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a copy |
| * of this software and associated documentation files (the "Software"), to deal |
| * in the Software without restriction, including without limitation the rights |
| * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| * copies of the Software, and to permit persons to whom the Software is |
| * furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included in |
| * all copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| * THE SOFTWARE. |
| */ |
| |
| #include "elf.h" |
| #include "../tcg-pool.c.inc" |
| #include "../tcg-ldst.c.inc" |
| |
| /* |
| * Standardize on the _CALL_FOO symbols used by GCC: |
| * Apple XCode does not define _CALL_DARWIN. |
| * Clang defines _CALL_ELF (64-bit) but not _CALL_SYSV or _CALL_AIX. |
| */ |
| #if TCG_TARGET_REG_BITS == 64 |
| # ifdef _CALL_AIX |
| /* ok */ |
| # elif defined(_CALL_ELF) && _CALL_ELF == 1 |
| # define _CALL_AIX |
| # elif defined(_CALL_ELF) && _CALL_ELF == 2 |
| /* ok */ |
| # else |
| # error "Unknown ABI" |
| # endif |
| #else |
| # if defined(_CALL_SYSV) || defined(_CALL_DARWIN) |
| /* ok */ |
| # elif defined(__APPLE__) |
| # define _CALL_DARWIN |
| # elif defined(__ELF__) |
| # define _CALL_SYSV |
| # else |
| # error "Unknown ABI" |
| # endif |
| #endif |
| |
| #if TCG_TARGET_REG_BITS == 64 |
| # define TCG_TARGET_CALL_ARG_I32 TCG_CALL_ARG_EXTEND |
| # define TCG_TARGET_CALL_RET_I128 TCG_CALL_RET_NORMAL |
| #else |
| # define TCG_TARGET_CALL_ARG_I32 TCG_CALL_ARG_NORMAL |
| # define TCG_TARGET_CALL_RET_I128 TCG_CALL_RET_BY_REF |
| #endif |
| #ifdef _CALL_SYSV |
| # define TCG_TARGET_CALL_ARG_I64 TCG_CALL_ARG_EVEN |
| # define TCG_TARGET_CALL_ARG_I128 TCG_CALL_ARG_BY_REF |
| #else |
| # define TCG_TARGET_CALL_ARG_I64 TCG_CALL_ARG_NORMAL |
| # define TCG_TARGET_CALL_ARG_I128 TCG_CALL_ARG_NORMAL |
| #endif |
| |
| /* For some memory operations, we need a scratch that isn't R0. For the AIX |
| calling convention, we can re-use the TOC register since we'll be reloading |
| it at every call. Otherwise R12 will do nicely as neither a call-saved |
| register nor a parameter register. */ |
| #ifdef _CALL_AIX |
| # define TCG_REG_TMP1 TCG_REG_R2 |
| #else |
| # define TCG_REG_TMP1 TCG_REG_R12 |
| #endif |
| #define TCG_REG_TMP2 TCG_REG_R11 |
| |
| #define TCG_VEC_TMP1 TCG_REG_V0 |
| #define TCG_VEC_TMP2 TCG_REG_V1 |
| |
| #define TCG_REG_TB TCG_REG_R31 |
| #define USE_REG_TB (TCG_TARGET_REG_BITS == 64 && !have_isa_3_00) |
| |
| /* Shorthand for size of a pointer. Avoid promotion to unsigned. */ |
| #define SZP ((int)sizeof(void *)) |
| |
| /* Shorthand for size of a register. */ |
| #define SZR (TCG_TARGET_REG_BITS / 8) |
| |
| #define TCG_CT_CONST_S16 0x100 |
| #define TCG_CT_CONST_U16 0x200 |
| #define TCG_CT_CONST_S32 0x400 |
| #define TCG_CT_CONST_U32 0x800 |
| #define TCG_CT_CONST_ZERO 0x1000 |
| #define TCG_CT_CONST_MONE 0x2000 |
| #define TCG_CT_CONST_WSZ 0x4000 |
| #define TCG_CT_CONST_CMP 0x8000 |
| |
| #define ALL_GENERAL_REGS 0xffffffffu |
| #define ALL_VECTOR_REGS 0xffffffff00000000ull |
| |
| #ifndef R_PPC64_PCREL34 |
| #define R_PPC64_PCREL34 132 |
| #endif |
| |
| #define have_isel (cpuinfo & CPUINFO_ISEL) |
| |
| #define TCG_GUEST_BASE_REG TCG_REG_R30 |
| |
| #ifdef CONFIG_DEBUG_TCG |
| static const char tcg_target_reg_names[TCG_TARGET_NB_REGS][4] = { |
| "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", |
| "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15", |
| "r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23", |
| "r24", "r25", "r26", "r27", "r28", "r29", "r30", "r31", |
| "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", |
| "v8", "v9", "v10", "v11", "v12", "v13", "v14", "v15", |
| "v16", "v17", "v18", "v19", "v20", "v21", "v22", "v23", |
| "v24", "v25", "v26", "v27", "v28", "v29", "v30", "v31", |
| }; |
| #endif |
| |
| static const int tcg_target_reg_alloc_order[] = { |
| TCG_REG_R14, /* call saved registers */ |
| TCG_REG_R15, |
| TCG_REG_R16, |
| TCG_REG_R17, |
| TCG_REG_R18, |
| TCG_REG_R19, |
| TCG_REG_R20, |
| TCG_REG_R21, |
| TCG_REG_R22, |
| TCG_REG_R23, |
| TCG_REG_R24, |
| TCG_REG_R25, |
| TCG_REG_R26, |
| TCG_REG_R27, |
| TCG_REG_R28, |
| TCG_REG_R29, |
| TCG_REG_R30, |
| TCG_REG_R31, |
| TCG_REG_R12, /* call clobbered, non-arguments */ |
| TCG_REG_R11, |
| TCG_REG_R2, |
| TCG_REG_R13, |
| TCG_REG_R10, /* call clobbered, arguments */ |
| TCG_REG_R9, |
| TCG_REG_R8, |
| TCG_REG_R7, |
| TCG_REG_R6, |
| TCG_REG_R5, |
| TCG_REG_R4, |
| TCG_REG_R3, |
| |
| /* V0 and V1 reserved as temporaries; V20 - V31 are call-saved */ |
| TCG_REG_V2, /* call clobbered, vectors */ |
| TCG_REG_V3, |
| TCG_REG_V4, |
| TCG_REG_V5, |
| TCG_REG_V6, |
| TCG_REG_V7, |
| TCG_REG_V8, |
| TCG_REG_V9, |
| TCG_REG_V10, |
| TCG_REG_V11, |
| TCG_REG_V12, |
| TCG_REG_V13, |
| TCG_REG_V14, |
| TCG_REG_V15, |
| TCG_REG_V16, |
| TCG_REG_V17, |
| TCG_REG_V18, |
| TCG_REG_V19, |
| }; |
| |
| static const int tcg_target_call_iarg_regs[] = { |
| TCG_REG_R3, |
| TCG_REG_R4, |
| TCG_REG_R5, |
| TCG_REG_R6, |
| TCG_REG_R7, |
| TCG_REG_R8, |
| TCG_REG_R9, |
| TCG_REG_R10 |
| }; |
| |
| static TCGReg tcg_target_call_oarg_reg(TCGCallReturnKind kind, int slot) |
| { |
| tcg_debug_assert(kind == TCG_CALL_RET_NORMAL); |
| tcg_debug_assert(slot >= 0 && slot <= 1); |
| return TCG_REG_R3 + slot; |
| } |
| |
| static const int tcg_target_callee_save_regs[] = { |
| #ifdef _CALL_DARWIN |
| TCG_REG_R11, |
| #endif |
| TCG_REG_R14, |
| TCG_REG_R15, |
| TCG_REG_R16, |
| TCG_REG_R17, |
| TCG_REG_R18, |
| TCG_REG_R19, |
| TCG_REG_R20, |
| TCG_REG_R21, |
| TCG_REG_R22, |
| TCG_REG_R23, |
| TCG_REG_R24, |
| TCG_REG_R25, |
| TCG_REG_R26, |
| TCG_REG_R27, /* currently used for the global env */ |
| TCG_REG_R28, |
| TCG_REG_R29, |
| TCG_REG_R30, |
| TCG_REG_R31 |
| }; |
| |
| /* For PPC, we use TB+4 instead of TB as the base. */ |
| static inline ptrdiff_t ppc_tbrel_diff(TCGContext *s, const void *target) |
| { |
| return tcg_tbrel_diff(s, target) - 4; |
| } |
| |
| static inline bool in_range_b(tcg_target_long target) |
| { |
| return target == sextract64(target, 0, 26); |
| } |
| |
| static uint32_t reloc_pc24_val(const tcg_insn_unit *pc, |
| const tcg_insn_unit *target) |
| { |
| ptrdiff_t disp = tcg_ptr_byte_diff(target, pc); |
| tcg_debug_assert(in_range_b(disp)); |
| return disp & 0x3fffffc; |
| } |
| |
| static bool reloc_pc24(tcg_insn_unit *src_rw, const tcg_insn_unit *target) |
| { |
| const tcg_insn_unit *src_rx = tcg_splitwx_to_rx(src_rw); |
| ptrdiff_t disp = tcg_ptr_byte_diff(target, src_rx); |
| |
| if (in_range_b(disp)) { |
| *src_rw = (*src_rw & ~0x3fffffc) | (disp & 0x3fffffc); |
| return true; |
| } |
| return false; |
| } |
| |
| static uint16_t reloc_pc14_val(const tcg_insn_unit *pc, |
| const tcg_insn_unit *target) |
| { |
| ptrdiff_t disp = tcg_ptr_byte_diff(target, pc); |
| tcg_debug_assert(disp == (int16_t) disp); |
| return disp & 0xfffc; |
| } |
| |
| static bool reloc_pc14(tcg_insn_unit *src_rw, const tcg_insn_unit *target) |
| { |
| const tcg_insn_unit *src_rx = tcg_splitwx_to_rx(src_rw); |
| ptrdiff_t disp = tcg_ptr_byte_diff(target, src_rx); |
| |
| if (disp == (int16_t) disp) { |
| *src_rw = (*src_rw & ~0xfffc) | (disp & 0xfffc); |
| return true; |
| } |
| return false; |
| } |
| |
| static bool reloc_pc34(tcg_insn_unit *src_rw, const tcg_insn_unit *target) |
| { |
| const tcg_insn_unit *src_rx = tcg_splitwx_to_rx(src_rw); |
| ptrdiff_t disp = tcg_ptr_byte_diff(target, src_rx); |
| |
| if (disp == sextract64(disp, 0, 34)) { |
| src_rw[0] = (src_rw[0] & ~0x3ffff) | ((disp >> 16) & 0x3ffff); |
| src_rw[1] = (src_rw[1] & ~0xffff) | (disp & 0xffff); |
| return true; |
| } |
| return false; |
| } |
| |
| static bool mask_operand(uint32_t c, int *mb, int *me); |
| static bool mask64_operand(uint64_t c, int *mb, int *me); |
| |
| /* test if a constant matches the constraint */ |
| static bool tcg_target_const_match(int64_t sval, int ct, |
| TCGType type, TCGCond cond, int vece) |
| { |
| uint64_t uval = sval; |
| int mb, me; |
| |
| if (ct & TCG_CT_CONST) { |
| return 1; |
| } |
| |
| if (type == TCG_TYPE_I32) { |
| uval = (uint32_t)sval; |
| sval = (int32_t)sval; |
| } |
| |
| if (ct & TCG_CT_CONST_CMP) { |
| switch (cond) { |
| case TCG_COND_EQ: |
| case TCG_COND_NE: |
| ct |= TCG_CT_CONST_S16 | TCG_CT_CONST_U16; |
| break; |
| case TCG_COND_LT: |
| case TCG_COND_GE: |
| case TCG_COND_LE: |
| case TCG_COND_GT: |
| ct |= TCG_CT_CONST_S16; |
| break; |
| case TCG_COND_LTU: |
| case TCG_COND_GEU: |
| case TCG_COND_LEU: |
| case TCG_COND_GTU: |
| ct |= TCG_CT_CONST_U16; |
| break; |
| case TCG_COND_TSTEQ: |
| case TCG_COND_TSTNE: |
| if ((uval & ~0xffff) == 0 || (uval & ~0xffff0000ull) == 0) { |
| return 1; |
| } |
| if (uval == (uint32_t)uval && mask_operand(uval, &mb, &me)) { |
| return 1; |
| } |
| if (TCG_TARGET_REG_BITS == 64 && |
| mask64_operand(uval << clz64(uval), &mb, &me)) { |
| return 1; |
| } |
| return 0; |
| default: |
| g_assert_not_reached(); |
| } |
| } |
| |
| if ((ct & TCG_CT_CONST_S16) && sval == (int16_t)sval) { |
| return 1; |
| } |
| if ((ct & TCG_CT_CONST_U16) && uval == (uint16_t)uval) { |
| return 1; |
| } |
| if ((ct & TCG_CT_CONST_S32) && sval == (int32_t)sval) { |
| return 1; |
| } |
| if ((ct & TCG_CT_CONST_U32) && uval == (uint32_t)uval) { |
| return 1; |
| } |
| if ((ct & TCG_CT_CONST_ZERO) && sval == 0) { |
| return 1; |
| } |
| if ((ct & TCG_CT_CONST_MONE) && sval == -1) { |
| return 1; |
| } |
| if ((ct & TCG_CT_CONST_WSZ) && sval == (type == TCG_TYPE_I32 ? 32 : 64)) { |
| return 1; |
| } |
| return 0; |
| } |
| |
| #define OPCD(opc) ((opc)<<26) |
| #define XO19(opc) (OPCD(19)|((opc)<<1)) |
| #define MD30(opc) (OPCD(30)|((opc)<<2)) |
| #define MDS30(opc) (OPCD(30)|((opc)<<1)) |
| #define XO31(opc) (OPCD(31)|((opc)<<1)) |
| #define XO58(opc) (OPCD(58)|(opc)) |
| #define XO62(opc) (OPCD(62)|(opc)) |
| #define VX4(opc) (OPCD(4)|(opc)) |
| |
| #define B OPCD( 18) |
| #define BC OPCD( 16) |
| |
| #define LBZ OPCD( 34) |
| #define LHZ OPCD( 40) |
| #define LHA OPCD( 42) |
| #define LWZ OPCD( 32) |
| #define LWZUX XO31( 55) |
| #define LD XO58( 0) |
| #define LDX XO31( 21) |
| #define LDU XO58( 1) |
| #define LDUX XO31( 53) |
| #define LWA XO58( 2) |
| #define LWAX XO31(341) |
| #define LQ OPCD( 56) |
| |
| #define STB OPCD( 38) |
| #define STH OPCD( 44) |
| #define STW OPCD( 36) |
| #define STD XO62( 0) |
| #define STDU XO62( 1) |
| #define STDX XO31(149) |
| #define STQ XO62( 2) |
| |
| #define PLWA OPCD( 41) |
| #define PLD OPCD( 57) |
| #define PLXSD OPCD( 42) |
| #define PLXV OPCD(25 * 2 + 1) /* force tx=1 */ |
| |
| #define PSTD OPCD( 61) |
| #define PSTXSD OPCD( 46) |
| #define PSTXV OPCD(27 * 2 + 1) /* force sx=1 */ |
| |
| #define ADDIC OPCD( 12) |
| #define ADDI OPCD( 14) |
| #define ADDIS OPCD( 15) |
| #define ORI OPCD( 24) |
| #define ORIS OPCD( 25) |
| #define XORI OPCD( 26) |
| #define XORIS OPCD( 27) |
| #define ANDI OPCD( 28) |
| #define ANDIS OPCD( 29) |
| #define MULLI OPCD( 7) |
| #define CMPLI OPCD( 10) |
| #define CMPI OPCD( 11) |
| #define SUBFIC OPCD( 8) |
| |
| #define LWZU OPCD( 33) |
| #define STWU OPCD( 37) |
| |
| #define RLWIMI OPCD( 20) |
| #define RLWINM OPCD( 21) |
| #define RLWNM OPCD( 23) |
| |
| #define RLDICL MD30( 0) |
| #define RLDICR MD30( 1) |
| #define RLDIMI MD30( 3) |
| #define RLDCL MDS30( 8) |
| |
| #define BCLR XO19( 16) |
| #define BCCTR XO19(528) |
| #define CRAND XO19(257) |
| #define CRANDC XO19(129) |
| #define CRNAND XO19(225) |
| #define CROR XO19(449) |
| #define CRNOR XO19( 33) |
| #define ADDPCIS XO19( 2) |
| |
| #define EXTSB XO31(954) |
| #define EXTSH XO31(922) |
| #define EXTSW XO31(986) |
| #define ADD XO31(266) |
| #define ADDE XO31(138) |
| #define ADDME XO31(234) |
| #define ADDZE XO31(202) |
| #define ADDC XO31( 10) |
| #define AND XO31( 28) |
| #define SUBF XO31( 40) |
| #define SUBFC XO31( 8) |
| #define SUBFE XO31(136) |
| #define SUBFME XO31(232) |
| #define SUBFZE XO31(200) |
| #define OR XO31(444) |
| #define XOR XO31(316) |
| #define MULLW XO31(235) |
| #define MULHW XO31( 75) |
| #define MULHWU XO31( 11) |
| #define DIVW XO31(491) |
| #define DIVWU XO31(459) |
| #define MODSW XO31(779) |
| #define MODUW XO31(267) |
| #define CMP XO31( 0) |
| #define CMPL XO31( 32) |
| #define LHBRX XO31(790) |
| #define LWBRX XO31(534) |
| #define LDBRX XO31(532) |
| #define STHBRX XO31(918) |
| #define STWBRX XO31(662) |
| #define STDBRX XO31(660) |
| #define MFSPR XO31(339) |
| #define MTSPR XO31(467) |
| #define SRAWI XO31(824) |
| #define NEG XO31(104) |
| #define MFCR XO31( 19) |
| #define MFOCRF (MFCR | (1u << 20)) |
| #define NOR XO31(124) |
| #define CNTLZW XO31( 26) |
| #define CNTLZD XO31( 58) |
| #define CNTTZW XO31(538) |
| #define CNTTZD XO31(570) |
| #define CNTPOPW XO31(378) |
| #define CNTPOPD XO31(506) |
| #define ANDC XO31( 60) |
| #define ORC XO31(412) |
| #define EQV XO31(284) |
| #define NAND XO31(476) |
| #define ISEL XO31( 15) |
| |
| #define MULLD XO31(233) |
| #define MULHD XO31( 73) |
| #define MULHDU XO31( 9) |
| #define DIVD XO31(489) |
| #define DIVDU XO31(457) |
| #define MODSD XO31(777) |
| #define MODUD XO31(265) |
| |
| #define LBZX XO31( 87) |
| #define LHZX XO31(279) |
| #define LHAX XO31(343) |
| #define LWZX XO31( 23) |
| #define STBX XO31(215) |
| #define STHX XO31(407) |
| #define STWX XO31(151) |
| |
| #define EIEIO XO31(854) |
| #define HWSYNC XO31(598) |
| #define LWSYNC (HWSYNC | (1u << 21)) |
| |
| #define SPR(a, b) ((((a)<<5)|(b))<<11) |
| #define LR SPR(8, 0) |
| #define CTR SPR(9, 0) |
| |
| #define SLW XO31( 24) |
| #define SRW XO31(536) |
| #define SRAW XO31(792) |
| |
| #define SLD XO31( 27) |
| #define SRD XO31(539) |
| #define SRAD XO31(794) |
| #define SRADI XO31(413<<1) |
| |
| #define BRH XO31(219) |
| #define BRW XO31(155) |
| #define BRD XO31(187) |
| |
| #define TW XO31( 4) |
| #define TRAP (TW | TO(31)) |
| |
| #define SETBC XO31(384) /* v3.10 */ |
| #define SETBCR XO31(416) /* v3.10 */ |
| #define SETNBC XO31(448) /* v3.10 */ |
| #define SETNBCR XO31(480) /* v3.10 */ |
| |
| #define NOP ORI /* ori 0,0,0 */ |
| |
| #define LVX XO31(103) |
| #define LVEBX XO31(7) |
| #define LVEHX XO31(39) |
| #define LVEWX XO31(71) |
| #define LXSDX (XO31(588) | 1) /* v2.06, force tx=1 */ |
| #define LXVDSX (XO31(332) | 1) /* v2.06, force tx=1 */ |
| #define LXSIWZX (XO31(12) | 1) /* v2.07, force tx=1 */ |
| #define LXV (OPCD(61) | 8 | 1) /* v3.00, force tx=1 */ |
| #define LXSD (OPCD(57) | 2) /* v3.00 */ |
| #define LXVWSX (XO31(364) | 1) /* v3.00, force tx=1 */ |
| |
| #define STVX XO31(231) |
| #define STVEWX XO31(199) |
| #define STXSDX (XO31(716) | 1) /* v2.06, force sx=1 */ |
| #define STXSIWX (XO31(140) | 1) /* v2.07, force sx=1 */ |
| #define STXV (OPCD(61) | 8 | 5) /* v3.00, force sx=1 */ |
| #define STXSD (OPCD(61) | 2) /* v3.00 */ |
| |
| #define VADDSBS VX4(768) |
| #define VADDUBS VX4(512) |
| #define VADDUBM VX4(0) |
| #define VADDSHS VX4(832) |
| #define VADDUHS VX4(576) |
| #define VADDUHM VX4(64) |
| #define VADDSWS VX4(896) |
| #define VADDUWS VX4(640) |
| #define VADDUWM VX4(128) |
| #define VADDUDM VX4(192) /* v2.07 */ |
| |
| #define VSUBSBS VX4(1792) |
| #define VSUBUBS VX4(1536) |
| #define VSUBUBM VX4(1024) |
| #define VSUBSHS VX4(1856) |
| #define VSUBUHS VX4(1600) |
| #define VSUBUHM VX4(1088) |
| #define VSUBSWS VX4(1920) |
| #define VSUBUWS VX4(1664) |
| #define VSUBUWM VX4(1152) |
| #define VSUBUDM VX4(1216) /* v2.07 */ |
| |
| #define VNEGW (VX4(1538) | (6 << 16)) /* v3.00 */ |
| #define VNEGD (VX4(1538) | (7 << 16)) /* v3.00 */ |
| |
| #define VMAXSB VX4(258) |
| #define VMAXSH VX4(322) |
| #define VMAXSW VX4(386) |
| #define VMAXSD VX4(450) /* v2.07 */ |
| #define VMAXUB VX4(2) |
| #define VMAXUH VX4(66) |
| #define VMAXUW VX4(130) |
| #define VMAXUD VX4(194) /* v2.07 */ |
| #define VMINSB VX4(770) |
| #define VMINSH VX4(834) |
| #define VMINSW VX4(898) |
| #define VMINSD VX4(962) /* v2.07 */ |
| #define VMINUB VX4(514) |
| #define VMINUH VX4(578) |
| #define VMINUW VX4(642) |
| #define VMINUD VX4(706) /* v2.07 */ |
| |
| #define VCMPEQUB VX4(6) |
| #define VCMPEQUH VX4(70) |
| #define VCMPEQUW VX4(134) |
| #define VCMPEQUD VX4(199) /* v2.07 */ |
| #define VCMPGTSB VX4(774) |
| #define VCMPGTSH VX4(838) |
| #define VCMPGTSW VX4(902) |
| #define VCMPGTSD VX4(967) /* v2.07 */ |
| #define VCMPGTUB VX4(518) |
| #define VCMPGTUH VX4(582) |
| #define VCMPGTUW VX4(646) |
| #define VCMPGTUD VX4(711) /* v2.07 */ |
| #define VCMPNEB VX4(7) /* v3.00 */ |
| #define VCMPNEH VX4(71) /* v3.00 */ |
| #define VCMPNEW VX4(135) /* v3.00 */ |
| |
| #define VSLB VX4(260) |
| #define VSLH VX4(324) |
| #define VSLW VX4(388) |
| #define VSLD VX4(1476) /* v2.07 */ |
| #define VSRB VX4(516) |
| #define VSRH VX4(580) |
| #define VSRW VX4(644) |
| #define VSRD VX4(1732) /* v2.07 */ |
| #define VSRAB VX4(772) |
| #define VSRAH VX4(836) |
| #define VSRAW VX4(900) |
| #define VSRAD VX4(964) /* v2.07 */ |
| #define VRLB VX4(4) |
| #define VRLH VX4(68) |
| #define VRLW VX4(132) |
| #define VRLD VX4(196) /* v2.07 */ |
| |
| #define VMULEUB VX4(520) |
| #define VMULEUH VX4(584) |
| #define VMULEUW VX4(648) /* v2.07 */ |
| #define VMULOUB VX4(8) |
| #define VMULOUH VX4(72) |
| #define VMULOUW VX4(136) /* v2.07 */ |
| #define VMULUWM VX4(137) /* v2.07 */ |
| #define VMULLD VX4(457) /* v3.10 */ |
| #define VMSUMUHM VX4(38) |
| |
| #define VMRGHB VX4(12) |
| #define VMRGHH VX4(76) |
| #define VMRGHW VX4(140) |
| #define VMRGLB VX4(268) |
| #define VMRGLH VX4(332) |
| #define VMRGLW VX4(396) |
| |
| #define VPKUHUM VX4(14) |
| #define VPKUWUM VX4(78) |
| |
| #define VAND VX4(1028) |
| #define VANDC VX4(1092) |
| #define VNOR VX4(1284) |
| #define VOR VX4(1156) |
| #define VXOR VX4(1220) |
| #define VEQV VX4(1668) /* v2.07 */ |
| #define VNAND VX4(1412) /* v2.07 */ |
| #define VORC VX4(1348) /* v2.07 */ |
| |
| #define VSPLTB VX4(524) |
| #define VSPLTH VX4(588) |
| #define VSPLTW VX4(652) |
| #define VSPLTISB VX4(780) |
| #define VSPLTISH VX4(844) |
| #define VSPLTISW VX4(908) |
| |
| #define VSLDOI VX4(44) |
| |
| #define XXPERMDI (OPCD(60) | (10 << 3) | 7) /* v2.06, force ax=bx=tx=1 */ |
| #define XXSEL (OPCD(60) | (3 << 4) | 0xf) /* v2.06, force ax=bx=cx=tx=1 */ |
| #define XXSPLTIB (OPCD(60) | (360 << 1) | 1) /* v3.00, force tx=1 */ |
| |
| #define MFVSRD (XO31(51) | 1) /* v2.07, force sx=1 */ |
| #define MFVSRWZ (XO31(115) | 1) /* v2.07, force sx=1 */ |
| #define MTVSRD (XO31(179) | 1) /* v2.07, force tx=1 */ |
| #define MTVSRWZ (XO31(243) | 1) /* v2.07, force tx=1 */ |
| #define MTVSRDD (XO31(435) | 1) /* v3.00, force tx=1 */ |
| #define MTVSRWS (XO31(403) | 1) /* v3.00, force tx=1 */ |
| |
| #define RT(r) ((r)<<21) |
| #define RS(r) ((r)<<21) |
| #define RA(r) ((r)<<16) |
| #define RB(r) ((r)<<11) |
| #define TO(t) ((t)<<21) |
| #define SH(s) ((s)<<11) |
| #define MB(b) ((b)<<6) |
| #define ME(e) ((e)<<1) |
| #define BO(o) ((o)<<21) |
| #define MB64(b) ((b)<<5) |
| #define FXM(b) (1 << (19 - (b))) |
| |
| #define VRT(r) (((r) & 31) << 21) |
| #define VRA(r) (((r) & 31) << 16) |
| #define VRB(r) (((r) & 31) << 11) |
| #define VRC(r) (((r) & 31) << 6) |
| |
| #define LK 1 |
| |
| #define TAB(t, a, b) (RT(t) | RA(a) | RB(b)) |
| #define SAB(s, a, b) (RS(s) | RA(a) | RB(b)) |
| #define TAI(s, a, i) (RT(s) | RA(a) | ((i) & 0xffff)) |
| #define SAI(s, a, i) (RS(s) | RA(a) | ((i) & 0xffff)) |
| |
| #define BF(n) ((n)<<23) |
| #define BI(n, c) (((c)+((n)*4))<<16) |
| #define BT(n, c) (((c)+((n)*4))<<21) |
| #define BA(n, c) (((c)+((n)*4))<<16) |
| #define BB(n, c) (((c)+((n)*4))<<11) |
| #define BC_(n, c) (((c)+((n)*4))<<6) |
| |
| #define BO_COND_TRUE BO(12) |
| #define BO_COND_FALSE BO( 4) |
| #define BO_ALWAYS BO(20) |
| |
| enum { |
| CR_LT, |
| CR_GT, |
| CR_EQ, |
| CR_SO |
| }; |
| |
| static const uint32_t tcg_to_bc[16] = { |
| [TCG_COND_EQ] = BC | BI(0, CR_EQ) | BO_COND_TRUE, |
| [TCG_COND_NE] = BC | BI(0, CR_EQ) | BO_COND_FALSE, |
| [TCG_COND_TSTEQ] = BC | BI(0, CR_EQ) | BO_COND_TRUE, |
| [TCG_COND_TSTNE] = BC | BI(0, CR_EQ) | BO_COND_FALSE, |
| [TCG_COND_LT] = BC | BI(0, CR_LT) | BO_COND_TRUE, |
| [TCG_COND_GE] = BC | BI(0, CR_LT) | BO_COND_FALSE, |
| [TCG_COND_LE] = BC | BI(0, CR_GT) | BO_COND_FALSE, |
| [TCG_COND_GT] = BC | BI(0, CR_GT) | BO_COND_TRUE, |
| [TCG_COND_LTU] = BC | BI(0, CR_LT) | BO_COND_TRUE, |
| [TCG_COND_GEU] = BC | BI(0, CR_LT) | BO_COND_FALSE, |
| [TCG_COND_LEU] = BC | BI(0, CR_GT) | BO_COND_FALSE, |
| [TCG_COND_GTU] = BC | BI(0, CR_GT) | BO_COND_TRUE, |
| }; |
| |
| /* The low bit here is set if the RA and RB fields must be inverted. */ |
| static const uint32_t tcg_to_isel[16] = { |
| [TCG_COND_EQ] = ISEL | BC_(0, CR_EQ), |
| [TCG_COND_NE] = ISEL | BC_(0, CR_EQ) | 1, |
| [TCG_COND_TSTEQ] = ISEL | BC_(0, CR_EQ), |
| [TCG_COND_TSTNE] = ISEL | BC_(0, CR_EQ) | 1, |
| [TCG_COND_LT] = ISEL | BC_(0, CR_LT), |
| [TCG_COND_GE] = ISEL | BC_(0, CR_LT) | 1, |
| [TCG_COND_LE] = ISEL | BC_(0, CR_GT) | 1, |
| [TCG_COND_GT] = ISEL | BC_(0, CR_GT), |
| [TCG_COND_LTU] = ISEL | BC_(0, CR_LT), |
| [TCG_COND_GEU] = ISEL | BC_(0, CR_LT) | 1, |
| [TCG_COND_LEU] = ISEL | BC_(0, CR_GT) | 1, |
| [TCG_COND_GTU] = ISEL | BC_(0, CR_GT), |
| }; |
| |
| static bool patch_reloc(tcg_insn_unit *code_ptr, int type, |
| intptr_t value, intptr_t addend) |
| { |
| const tcg_insn_unit *target; |
| int16_t lo; |
| int32_t hi; |
| |
| value += addend; |
| target = (const tcg_insn_unit *)value; |
| |
| switch (type) { |
| case R_PPC_REL14: |
| return reloc_pc14(code_ptr, target); |
| case R_PPC_REL24: |
| return reloc_pc24(code_ptr, target); |
| case R_PPC64_PCREL34: |
| return reloc_pc34(code_ptr, target); |
| case R_PPC_ADDR16: |
| /* |
| * We are (slightly) abusing this relocation type. In particular, |
| * assert that the low 2 bits are zero, and do not modify them. |
| * That way we can use this with LD et al that have opcode bits |
| * in the low 2 bits of the insn. |
| */ |
| if ((value & 3) || value != (int16_t)value) { |
| return false; |
| } |
| *code_ptr = (*code_ptr & ~0xfffc) | (value & 0xfffc); |
| break; |
| case R_PPC_ADDR32: |
| /* |
| * We are abusing this relocation type. Again, this points to |
| * a pair of insns, lis + load. This is an absolute address |
| * relocation for PPC32 so the lis cannot be removed. |
| */ |
| lo = value; |
| hi = value - lo; |
| if (hi + lo != value) { |
| return false; |
| } |
| code_ptr[0] = deposit32(code_ptr[0], 0, 16, hi >> 16); |
| code_ptr[1] = deposit32(code_ptr[1], 0, 16, lo); |
| break; |
| default: |
| g_assert_not_reached(); |
| } |
| return true; |
| } |
| |
| /* Ensure that the prefixed instruction does not cross a 64-byte boundary. */ |
| static bool tcg_out_need_prefix_align(TCGContext *s) |
| { |
| return ((uintptr_t)s->code_ptr & 0x3f) == 0x3c; |
| } |
| |
| static void tcg_out_prefix_align(TCGContext *s) |
| { |
| if (tcg_out_need_prefix_align(s)) { |
| tcg_out32(s, NOP); |
| } |
| } |
| |
| static ptrdiff_t tcg_pcrel_diff_for_prefix(TCGContext *s, const void *target) |
| { |
| return tcg_pcrel_diff(s, target) - (tcg_out_need_prefix_align(s) ? 4 : 0); |
| } |
| |
| /* Output Type 00 Prefix - 8-Byte Load/Store Form (8LS:D) */ |
| static void tcg_out_8ls_d(TCGContext *s, tcg_insn_unit opc, unsigned rt, |
| unsigned ra, tcg_target_long imm, bool r) |
| { |
| tcg_insn_unit p, i; |
| |
| p = OPCD(1) | (r << 20) | ((imm >> 16) & 0x3ffff); |
| i = opc | TAI(rt, ra, imm); |
| |
| tcg_out_prefix_align(s); |
| tcg_out32(s, p); |
| tcg_out32(s, i); |
| } |
| |
| /* Output Type 10 Prefix - Modified Load/Store Form (MLS:D) */ |
| static void tcg_out_mls_d(TCGContext *s, tcg_insn_unit opc, unsigned rt, |
| unsigned ra, tcg_target_long imm, bool r) |
| { |
| tcg_insn_unit p, i; |
| |
| p = OPCD(1) | (2 << 24) | (r << 20) | ((imm >> 16) & 0x3ffff); |
| i = opc | TAI(rt, ra, imm); |
| |
| tcg_out_prefix_align(s); |
| tcg_out32(s, p); |
| tcg_out32(s, i); |
| } |
| |
| static void tcg_out_mem_long(TCGContext *s, int opi, int opx, TCGReg rt, |
| TCGReg base, tcg_target_long offset); |
| |
| static bool tcg_out_mov(TCGContext *s, TCGType type, TCGReg ret, TCGReg arg) |
| { |
| if (ret == arg) { |
| return true; |
| } |
| switch (type) { |
| case TCG_TYPE_I64: |
| tcg_debug_assert(TCG_TARGET_REG_BITS == 64); |
| /* fallthru */ |
| case TCG_TYPE_I32: |
| if (ret < TCG_REG_V0) { |
| if (arg < TCG_REG_V0) { |
| tcg_out32(s, OR | SAB(arg, ret, arg)); |
| break; |
| } else if (have_isa_2_07) { |
| tcg_out32(s, (type == TCG_TYPE_I32 ? MFVSRWZ : MFVSRD) |
| | VRT(arg) | RA(ret)); |
| break; |
| } else { |
| /* Altivec does not support vector->integer moves. */ |
| return false; |
| } |
| } else if (arg < TCG_REG_V0) { |
| if (have_isa_2_07) { |
| tcg_out32(s, (type == TCG_TYPE_I32 ? MTVSRWZ : MTVSRD) |
| | VRT(ret) | RA(arg)); |
| break; |
| } else { |
| /* Altivec does not support integer->vector moves. */ |
| return false; |
| } |
| } |
| /* fallthru */ |
| case TCG_TYPE_V64: |
| case TCG_TYPE_V128: |
| tcg_debug_assert(ret >= TCG_REG_V0 && arg >= TCG_REG_V0); |
| tcg_out32(s, VOR | VRT(ret) | VRA(arg) | VRB(arg)); |
| break; |
| default: |
| g_assert_not_reached(); |
| } |
| return true; |
| } |
| |
| static void tcg_out_rld_rc(TCGContext *s, int op, TCGReg ra, TCGReg rs, |
| int sh, int mb, bool rc) |
| { |
| tcg_debug_assert(TCG_TARGET_REG_BITS == 64); |
| sh = SH(sh & 0x1f) | (((sh >> 5) & 1) << 1); |
| mb = MB64((mb >> 5) | ((mb << 1) & 0x3f)); |
| tcg_out32(s, op | RA(ra) | RS(rs) | sh | mb | rc); |
| } |
| |
| static void tcg_out_rld(TCGContext *s, int op, TCGReg ra, TCGReg rs, |
| int sh, int mb) |
| { |
| tcg_out_rld_rc(s, op, ra, rs, sh, mb, false); |
| } |
| |
| static void tcg_out_rlw_rc(TCGContext *s, int op, TCGReg ra, TCGReg rs, |
| int sh, int mb, int me, bool rc) |
| { |
| tcg_out32(s, op | RA(ra) | RS(rs) | SH(sh) | MB(mb) | ME(me) | rc); |
| } |
| |
| static void tcg_out_rlw(TCGContext *s, int op, TCGReg ra, TCGReg rs, |
| int sh, int mb, int me) |
| { |
| tcg_out_rlw_rc(s, op, ra, rs, sh, mb, me, false); |
| } |
| |
| static void tcg_out_ext8s(TCGContext *s, TCGType type, TCGReg dst, TCGReg src) |
| { |
| tcg_out32(s, EXTSB | RA(dst) | RS(src)); |
| } |
| |
| static void tcg_out_ext8u(TCGContext *s, TCGReg dst, TCGReg src) |
| { |
| tcg_out32(s, ANDI | SAI(src, dst, 0xff)); |
| } |
| |
| static void tcg_out_ext16s(TCGContext *s, TCGType type, TCGReg dst, TCGReg src) |
| { |
| tcg_out32(s, EXTSH | RA(dst) | RS(src)); |
| } |
| |
| static void tcg_out_ext16u(TCGContext *s, TCGReg dst, TCGReg src) |
| { |
| tcg_out32(s, ANDI | SAI(src, dst, 0xffff)); |
| } |
| |
| static void tcg_out_ext32s(TCGContext *s, TCGReg dst, TCGReg src) |
| { |
| tcg_debug_assert(TCG_TARGET_REG_BITS == 64); |
| tcg_out32(s, EXTSW | RA(dst) | RS(src)); |
| } |
| |
| static void tcg_out_ext32u(TCGContext *s, TCGReg dst, TCGReg src) |
| { |
| tcg_debug_assert(TCG_TARGET_REG_BITS == 64); |
| tcg_out_rld(s, RLDICL, dst, src, 0, 32); |
| } |
| |
| static void tcg_out_exts_i32_i64(TCGContext *s, TCGReg dst, TCGReg src) |
| { |
| tcg_out_ext32s(s, dst, src); |
| } |
| |
| static void tcg_out_extu_i32_i64(TCGContext *s, TCGReg dst, TCGReg src) |
| { |
| tcg_out_ext32u(s, dst, src); |
| } |
| |
| static void tcg_out_extrl_i64_i32(TCGContext *s, TCGReg rd, TCGReg rn) |
| { |
| tcg_debug_assert(TCG_TARGET_REG_BITS == 64); |
| tcg_out_mov(s, TCG_TYPE_I32, rd, rn); |
| } |
| |
| static inline void tcg_out_shli32(TCGContext *s, TCGReg dst, TCGReg src, int c) |
| { |
| tcg_out_rlw(s, RLWINM, dst, src, c, 0, 31 - c); |
| } |
| |
| static inline void tcg_out_shli64(TCGContext *s, TCGReg dst, TCGReg src, int c) |
| { |
| tcg_out_rld(s, RLDICR, dst, src, c, 63 - c); |
| } |
| |
| static inline void tcg_out_sari32(TCGContext *s, TCGReg dst, TCGReg src, int c) |
| { |
| /* Limit immediate shift count lest we create an illegal insn. */ |
| tcg_out32(s, SRAWI | RA(dst) | RS(src) | SH(c & 31)); |
| } |
| |
| static inline void tcg_out_shri32(TCGContext *s, TCGReg dst, TCGReg src, int c) |
| { |
| tcg_out_rlw(s, RLWINM, dst, src, 32 - c, c, 31); |
| } |
| |
| static inline void tcg_out_shri64(TCGContext *s, TCGReg dst, TCGReg src, int c) |
| { |
| tcg_out_rld(s, RLDICL, dst, src, 64 - c, c); |
| } |
| |
| static inline void tcg_out_sari64(TCGContext *s, TCGReg dst, TCGReg src, int c) |
| { |
| tcg_out32(s, SRADI | RA(dst) | RS(src) | SH(c & 0x1f) | ((c >> 4) & 2)); |
| } |
| |
| static void tcg_out_addpcis(TCGContext *s, TCGReg dst, intptr_t imm) |
| { |
| uint32_t d0, d1, d2; |
| |
| tcg_debug_assert((imm & 0xffff) == 0); |
| tcg_debug_assert(imm == (int32_t)imm); |
| |
| d2 = extract32(imm, 16, 1); |
| d1 = extract32(imm, 17, 5); |
| d0 = extract32(imm, 22, 10); |
| tcg_out32(s, ADDPCIS | RT(dst) | (d1 << 16) | (d0 << 6) | d2); |
| } |
| |
| static void tcg_out_bswap16(TCGContext *s, TCGReg dst, TCGReg src, int flags) |
| { |
| TCGReg tmp = dst == src ? TCG_REG_R0 : dst; |
| |
| if (have_isa_3_10) { |
| tcg_out32(s, BRH | RA(dst) | RS(src)); |
| if (flags & TCG_BSWAP_OS) { |
| tcg_out_ext16s(s, TCG_TYPE_REG, dst, dst); |
| } else if ((flags & (TCG_BSWAP_IZ | TCG_BSWAP_OZ)) == TCG_BSWAP_OZ) { |
| tcg_out_ext16u(s, dst, dst); |
| } |
| return; |
| } |
| |
| /* |
| * In the following, |
| * dep(a, b, m) -> (a & ~m) | (b & m) |
| * |
| * Begin with: src = xxxxabcd |
| */ |
| /* tmp = rol32(src, 24) & 0x000000ff = 0000000c */ |
| tcg_out_rlw(s, RLWINM, tmp, src, 24, 24, 31); |
| /* tmp = dep(tmp, rol32(src, 8), 0x0000ff00) = 000000dc */ |
| tcg_out_rlw(s, RLWIMI, tmp, src, 8, 16, 23); |
| |
| if (flags & TCG_BSWAP_OS) { |
| tcg_out_ext16s(s, TCG_TYPE_REG, dst, tmp); |
| } else { |
| tcg_out_mov(s, TCG_TYPE_REG, dst, tmp); |
| } |
| } |
| |
| static void tcg_out_bswap32(TCGContext *s, TCGReg dst, TCGReg src, int flags) |
| { |
| TCGReg tmp = dst == src ? TCG_REG_R0 : dst; |
| |
| if (have_isa_3_10) { |
| tcg_out32(s, BRW | RA(dst) | RS(src)); |
| if (flags & TCG_BSWAP_OS) { |
| tcg_out_ext32s(s, dst, dst); |
| } else if ((flags & (TCG_BSWAP_IZ | TCG_BSWAP_OZ)) == TCG_BSWAP_OZ) { |
| tcg_out_ext32u(s, dst, dst); |
| } |
| return; |
| } |
| |
| /* |
| * Stolen from gcc's builtin_bswap32. |
| * In the following, |
| * dep(a, b, m) -> (a & ~m) | (b & m) |
| * |
| * Begin with: src = xxxxabcd |
| */ |
| /* tmp = rol32(src, 8) & 0xffffffff = 0000bcda */ |
| tcg_out_rlw(s, RLWINM, tmp, src, 8, 0, 31); |
| /* tmp = dep(tmp, rol32(src, 24), 0xff000000) = 0000dcda */ |
| tcg_out_rlw(s, RLWIMI, tmp, src, 24, 0, 7); |
| /* tmp = dep(tmp, rol32(src, 24), 0x0000ff00) = 0000dcba */ |
| tcg_out_rlw(s, RLWIMI, tmp, src, 24, 16, 23); |
| |
| if (flags & TCG_BSWAP_OS) { |
| tcg_out_ext32s(s, dst, tmp); |
| } else { |
| tcg_out_mov(s, TCG_TYPE_REG, dst, tmp); |
| } |
| } |
| |
| static void tcg_out_bswap64(TCGContext *s, TCGReg dst, TCGReg src) |
| { |
| TCGReg t0 = dst == src ? TCG_REG_R0 : dst; |
| TCGReg t1 = dst == src ? dst : TCG_REG_R0; |
| |
| if (have_isa_3_10) { |
| tcg_out32(s, BRD | RA(dst) | RS(src)); |
| return; |
| } |
| |
| /* |
| * In the following, |
| * dep(a, b, m) -> (a & ~m) | (b & m) |
| * |
| * Begin with: src = abcdefgh |
| */ |
| /* t0 = rol32(src, 8) & 0xffffffff = 0000fghe */ |
| tcg_out_rlw(s, RLWINM, t0, src, 8, 0, 31); |
| /* t0 = dep(t0, rol32(src, 24), 0xff000000) = 0000hghe */ |
| tcg_out_rlw(s, RLWIMI, t0, src, 24, 0, 7); |
| /* t0 = dep(t0, rol32(src, 24), 0x0000ff00) = 0000hgfe */ |
| tcg_out_rlw(s, RLWIMI, t0, src, 24, 16, 23); |
| |
| /* t0 = rol64(t0, 32) = hgfe0000 */ |
| tcg_out_rld(s, RLDICL, t0, t0, 32, 0); |
| /* t1 = rol64(src, 32) = efghabcd */ |
| tcg_out_rld(s, RLDICL, t1, src, 32, 0); |
| |
| /* t0 = dep(t0, rol32(t1, 24), 0xffffffff) = hgfebcda */ |
| tcg_out_rlw(s, RLWIMI, t0, t1, 8, 0, 31); |
| /* t0 = dep(t0, rol32(t1, 24), 0xff000000) = hgfedcda */ |
| tcg_out_rlw(s, RLWIMI, t0, t1, 24, 0, 7); |
| /* t0 = dep(t0, rol32(t1, 24), 0x0000ff00) = hgfedcba */ |
| tcg_out_rlw(s, RLWIMI, t0, t1, 24, 16, 23); |
| |
| tcg_out_mov(s, TCG_TYPE_REG, dst, t0); |
| } |
| |
| /* Emit a move into ret of arg, if it can be done in one insn. */ |
| static bool tcg_out_movi_one(TCGContext *s, TCGReg ret, tcg_target_long arg) |
| { |
| if (arg == (int16_t)arg) { |
| tcg_out32(s, ADDI | TAI(ret, 0, arg)); |
| return true; |
| } |
| if (arg == (int32_t)arg && (arg & 0xffff) == 0) { |
| tcg_out32(s, ADDIS | TAI(ret, 0, arg >> 16)); |
| return true; |
| } |
| return false; |
| } |
| |
| static void tcg_out_movi_int(TCGContext *s, TCGType type, TCGReg ret, |
| tcg_target_long arg, bool in_prologue) |
| { |
| intptr_t tb_diff; |
| tcg_target_long tmp; |
| int shift; |
| |
| tcg_debug_assert(TCG_TARGET_REG_BITS == 64 || type == TCG_TYPE_I32); |
| |
| if (TCG_TARGET_REG_BITS == 64 && type == TCG_TYPE_I32) { |
| arg = (int32_t)arg; |
| } |
| |
| /* Load 16-bit immediates with one insn. */ |
| if (tcg_out_movi_one(s, ret, arg)) { |
| return; |
| } |
| |
| /* Load addresses within the TB with one insn. */ |
| tb_diff = ppc_tbrel_diff(s, (void *)arg); |
| if (!in_prologue && USE_REG_TB && tb_diff == (int16_t)tb_diff) { |
| tcg_out32(s, ADDI | TAI(ret, TCG_REG_TB, tb_diff)); |
| return; |
| } |
| |
| /* |
| * Load values up to 34 bits, and pc-relative addresses, |
| * with one prefixed insn. |
| */ |
| if (have_isa_3_10) { |
| if (arg == sextract64(arg, 0, 34)) { |
| /* pli ret,value = paddi ret,0,value,0 */ |
| tcg_out_mls_d(s, ADDI, ret, 0, arg, 0); |
| return; |
| } |
| |
| tmp = tcg_pcrel_diff_for_prefix(s, (void *)arg); |
| if (tmp == sextract64(tmp, 0, 34)) { |
| /* pla ret,value = paddi ret,0,value,1 */ |
| tcg_out_mls_d(s, ADDI, ret, 0, tmp, 1); |
| return; |
| } |
| } |
| |
| /* Load 32-bit immediates with two insns. Note that we've already |
| eliminated bare ADDIS, so we know both insns are required. */ |
| if (TCG_TARGET_REG_BITS == 32 || arg == (int32_t)arg) { |
| tcg_out32(s, ADDIS | TAI(ret, 0, arg >> 16)); |
| tcg_out32(s, ORI | SAI(ret, ret, arg)); |
| return; |
| } |
| if (arg == (uint32_t)arg && !(arg & 0x8000)) { |
| tcg_out32(s, ADDI | TAI(ret, 0, arg)); |
| tcg_out32(s, ORIS | SAI(ret, ret, arg >> 16)); |
| return; |
| } |
| |
| /* Load masked 16-bit value. */ |
| if (arg > 0 && (arg & 0x8000)) { |
| tmp = arg | 0x7fff; |
| if ((tmp & (tmp + 1)) == 0) { |
| int mb = clz64(tmp + 1) + 1; |
| tcg_out32(s, ADDI | TAI(ret, 0, arg)); |
| tcg_out_rld(s, RLDICL, ret, ret, 0, mb); |
| return; |
| } |
| } |
| |
| /* Load common masks with 2 insns. */ |
| shift = ctz64(arg); |
| tmp = arg >> shift; |
| if (tmp == (int16_t)tmp) { |
| tcg_out32(s, ADDI | TAI(ret, 0, tmp)); |
| tcg_out_shli64(s, ret, ret, shift); |
| return; |
| } |
| shift = clz64(arg); |
| if (tcg_out_movi_one(s, ret, arg << shift)) { |
| tcg_out_shri64(s, ret, ret, shift); |
| return; |
| } |
| |
| /* Load addresses within 2GB with 2 insns. */ |
| if (have_isa_3_00) { |
| intptr_t hi = tcg_pcrel_diff(s, (void *)arg) - 4; |
| int16_t lo = hi; |
| |
| hi -= lo; |
| if (hi == (int32_t)hi) { |
| tcg_out_addpcis(s, TCG_REG_TMP2, hi); |
| tcg_out32(s, ADDI | TAI(ret, TCG_REG_TMP2, lo)); |
| return; |
| } |
| } |
| |
| /* Load addresses within 2GB of TB with 2 (or rarely 3) insns. */ |
| if (!in_prologue && USE_REG_TB && tb_diff == (int32_t)tb_diff) { |
| tcg_out_mem_long(s, ADDI, ADD, ret, TCG_REG_TB, tb_diff); |
| return; |
| } |
| |
| /* Use the constant pool, if possible. */ |
| if (!in_prologue && USE_REG_TB) { |
| new_pool_label(s, arg, R_PPC_ADDR16, s->code_ptr, |
| ppc_tbrel_diff(s, NULL)); |
| tcg_out32(s, LD | TAI(ret, TCG_REG_TB, 0)); |
| return; |
| } |
| if (have_isa_3_10) { |
| tcg_out_8ls_d(s, PLD, ret, 0, 0, 1); |
| new_pool_label(s, arg, R_PPC64_PCREL34, s->code_ptr - 2, 0); |
| return; |
| } |
| if (have_isa_3_00) { |
| tcg_out_addpcis(s, TCG_REG_TMP2, 0); |
| new_pool_label(s, arg, R_PPC_REL14, s->code_ptr, 0); |
| tcg_out32(s, LD | TAI(ret, TCG_REG_TMP2, 0)); |
| return; |
| } |
| |
| tmp = arg >> 31 >> 1; |
| tcg_out_movi(s, TCG_TYPE_I32, ret, tmp); |
| if (tmp) { |
| tcg_out_shli64(s, ret, ret, 32); |
| } |
| if (arg & 0xffff0000) { |
| tcg_out32(s, ORIS | SAI(ret, ret, arg >> 16)); |
| } |
| if (arg & 0xffff) { |
| tcg_out32(s, ORI | SAI(ret, ret, arg)); |
| } |
| } |
| |
| static void tcg_out_dupi_vec(TCGContext *s, TCGType type, unsigned vece, |
| TCGReg ret, int64_t val) |
| { |
| uint32_t load_insn; |
| int rel, low; |
| intptr_t add; |
| |
| switch (vece) { |
| case MO_8: |
| low = (int8_t)val; |
| if (low >= -16 && low < 16) { |
| tcg_out32(s, VSPLTISB | VRT(ret) | ((val & 31) << 16)); |
| return; |
| } |
| if (have_isa_3_00) { |
| tcg_out32(s, XXSPLTIB | VRT(ret) | ((val & 0xff) << 11)); |
| return; |
| } |
| break; |
| |
| case MO_16: |
| low = (int16_t)val; |
| if (low >= -16 && low < 16) { |
| tcg_out32(s, VSPLTISH | VRT(ret) | ((val & 31) << 16)); |
| return; |
| } |
| break; |
| |
| case MO_32: |
| low = (int32_t)val; |
| if (low >= -16 && low < 16) { |
| tcg_out32(s, VSPLTISW | VRT(ret) | ((val & 31) << 16)); |
| return; |
| } |
| break; |
| } |
| |
| /* |
| * Otherwise we must load the value from the constant pool. |
| */ |
| if (USE_REG_TB) { |
| rel = R_PPC_ADDR16; |
| add = ppc_tbrel_diff(s, NULL); |
| } else if (have_isa_3_10) { |
| if (type == TCG_TYPE_V64) { |
| tcg_out_8ls_d(s, PLXSD, ret & 31, 0, 0, 1); |
| new_pool_label(s, val, R_PPC64_PCREL34, s->code_ptr - 2, 0); |
| } else { |
| tcg_out_8ls_d(s, PLXV, ret & 31, 0, 0, 1); |
| new_pool_l2(s, R_PPC64_PCREL34, s->code_ptr - 2, 0, val, val); |
| } |
| return; |
| } else if (have_isa_3_00) { |
| tcg_out_addpcis(s, TCG_REG_TMP1, 0); |
| rel = R_PPC_REL14; |
| add = 0; |
| } else { |
| rel = R_PPC_ADDR32; |
| add = 0; |
| } |
| |
| if (have_vsx) { |
| load_insn = type == TCG_TYPE_V64 ? LXSDX : LXVDSX; |
| load_insn |= VRT(ret) | RB(TCG_REG_TMP1); |
| if (TCG_TARGET_REG_BITS == 64) { |
| new_pool_label(s, val, rel, s->code_ptr, add); |
| } else { |
| new_pool_l2(s, rel, s->code_ptr, add, val >> 32, val); |
| } |
| } else { |
| load_insn = LVX | VRT(ret) | RB(TCG_REG_TMP1); |
| if (TCG_TARGET_REG_BITS == 64) { |
| new_pool_l2(s, rel, s->code_ptr, add, val, val); |
| } else { |
| new_pool_l4(s, rel, s->code_ptr, add, |
| val >> 32, val, val >> 32, val); |
| } |
| } |
| |
| if (USE_REG_TB) { |
| tcg_out32(s, ADDI | TAI(TCG_REG_TMP1, 0, 0)); |
| load_insn |= RA(TCG_REG_TB); |
| } else if (have_isa_3_00) { |
| tcg_out32(s, ADDI | TAI(TCG_REG_TMP1, TCG_REG_TMP1, 0)); |
| } else { |
| tcg_out32(s, ADDIS | TAI(TCG_REG_TMP1, 0, 0)); |
| tcg_out32(s, ADDI | TAI(TCG_REG_TMP1, TCG_REG_TMP1, 0)); |
| } |
| tcg_out32(s, load_insn); |
| } |
| |
| static void tcg_out_movi(TCGContext *s, TCGType type, TCGReg ret, |
| tcg_target_long arg) |
| { |
| switch (type) { |
| case TCG_TYPE_I32: |
| case TCG_TYPE_I64: |
| tcg_debug_assert(ret < TCG_REG_V0); |
| tcg_out_movi_int(s, type, ret, arg, false); |
| break; |
| |
| default: |
| g_assert_not_reached(); |
| } |
| } |
| |
| static bool tcg_out_xchg(TCGContext *s, TCGType type, TCGReg r1, TCGReg r2) |
| { |
| return false; |
| } |
| |
| static void tcg_out_addi_ptr(TCGContext *s, TCGReg rd, TCGReg rs, |
| tcg_target_long imm) |
| { |
| /* This function is only used for passing structs by reference. */ |
| g_assert_not_reached(); |
| } |
| |
| static bool mask_operand(uint32_t c, int *mb, int *me) |
| { |
| uint32_t lsb, test; |
| |
| /* Accept a bit pattern like: |
| 0....01....1 |
| 1....10....0 |
| 0..01..10..0 |
| Keep track of the transitions. */ |
| if (c == 0 || c == -1) { |
| return false; |
| } |
| test = c; |
| lsb = test & -test; |
| test += lsb; |
| if (test & (test - 1)) { |
| return false; |
| } |
| |
| *me = clz32(lsb); |
| *mb = test ? clz32(test & -test) + 1 : 0; |
| return true; |
| } |
| |
| static bool mask64_operand(uint64_t c, int *mb, int *me) |
| { |
| uint64_t lsb; |
| |
| if (c == 0) { |
| return false; |
| } |
| |
| lsb = c & -c; |
| /* Accept 1..10..0. */ |
| if (c == -lsb) { |
| *mb = 0; |
| *me = clz64(lsb); |
| return true; |
| } |
| /* Accept 0..01..1. */ |
| if (lsb == 1 && (c & (c + 1)) == 0) { |
| *mb = clz64(c + 1) + 1; |
| *me = 63; |
| return true; |
| } |
| return false; |
| } |
| |
| static void tcg_out_andi32(TCGContext *s, TCGReg dst, TCGReg src, uint32_t c) |
| { |
| int mb, me; |
| |
| if (mask_operand(c, &mb, &me)) { |
| tcg_out_rlw(s, RLWINM, dst, src, 0, mb, me); |
| } else if ((c & 0xffff) == c) { |
| tcg_out32(s, ANDI | SAI(src, dst, c)); |
| return; |
| } else if ((c & 0xffff0000) == c) { |
| tcg_out32(s, ANDIS | SAI(src, dst, c >> 16)); |
| return; |
| } else { |
| tcg_out_movi(s, TCG_TYPE_I32, TCG_REG_R0, c); |
| tcg_out32(s, AND | SAB(src, dst, TCG_REG_R0)); |
| } |
| } |
| |
| static void tcg_out_andi64(TCGContext *s, TCGReg dst, TCGReg src, uint64_t c) |
| { |
| int mb, me; |
| |
| tcg_debug_assert(TCG_TARGET_REG_BITS == 64); |
| if (mask64_operand(c, &mb, &me)) { |
| if (mb == 0) { |
| tcg_out_rld(s, RLDICR, dst, src, 0, me); |
| } else { |
| tcg_out_rld(s, RLDICL, dst, src, 0, mb); |
| } |
| } else if ((c & 0xffff) == c) { |
| tcg_out32(s, ANDI | SAI(src, dst, c)); |
| return; |
| } else if ((c & 0xffff0000) == c) { |
| tcg_out32(s, ANDIS | SAI(src, dst, c >> 16)); |
| return; |
| } else { |
| tcg_out_movi(s, TCG_TYPE_I64, TCG_REG_R0, c); |
| tcg_out32(s, AND | SAB(src, dst, TCG_REG_R0)); |
| } |
| } |
| |
| static void tcg_out_zori32(TCGContext *s, TCGReg dst, TCGReg src, uint32_t c, |
| int op_lo, int op_hi) |
| { |
| if (c >> 16) { |
| tcg_out32(s, op_hi | SAI(src, dst, c >> 16)); |
| src = dst; |
| } |
| if (c & 0xffff) { |
| tcg_out32(s, op_lo | SAI(src, dst, c)); |
| src = dst; |
| } |
| } |
| |
| static void tcg_out_ori32(TCGContext *s, TCGReg dst, TCGReg src, uint32_t c) |
| { |
| tcg_out_zori32(s, dst, src, c, ORI, ORIS); |
| } |
| |
| static void tcg_out_xori32(TCGContext *s, TCGReg dst, TCGReg src, uint32_t c) |
| { |
| tcg_out_zori32(s, dst, src, c, XORI, XORIS); |
| } |
| |
| static void tcg_out_b(TCGContext *s, int mask, const tcg_insn_unit *target) |
| { |
| ptrdiff_t disp = tcg_pcrel_diff(s, target); |
| if (in_range_b(disp)) { |
| tcg_out32(s, B | (disp & 0x3fffffc) | mask); |
| } else { |
| tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_R0, (uintptr_t)target); |
| tcg_out32(s, MTSPR | RS(TCG_REG_R0) | CTR); |
| tcg_out32(s, BCCTR | BO_ALWAYS | mask); |
| } |
| } |
| |
| static void tcg_out_mem_long(TCGContext *s, int opi, int opx, TCGReg rt, |
| TCGReg base, tcg_target_long offset) |
| { |
| tcg_target_long orig = offset, l0, l1, extra = 0, align = 0; |
| bool is_int_store = false; |
| TCGReg rs = TCG_REG_TMP1; |
| |
| switch (opi) { |
| case LD: case LWA: |
| align = 3; |
| /* FALLTHRU */ |
| default: |
| if (rt > TCG_REG_R0 && rt < TCG_REG_V0) { |
| rs = rt; |
| break; |
| } |
| break; |
| case LXSD: |
| case STXSD: |
| align = 3; |
| break; |
| case LXV: |
| case STXV: |
| align = 15; |
| break; |
| case STD: |
| align = 3; |
| /* FALLTHRU */ |
| case STB: case STH: case STW: |
| is_int_store = true; |
| break; |
| } |
| |
| /* For unaligned or large offsets, use the prefixed form. */ |
| if (have_isa_3_10 |
| && (offset != (int16_t)offset || (offset & align)) |
| && offset == sextract64(offset, 0, 34)) { |
| /* |
| * Note that the MLS:D insns retain their un-prefixed opcode, |
| * while the 8LS:D insns use a different opcode space. |
| */ |
| switch (opi) { |
| case LBZ: |
| case LHZ: |
| case LHA: |
| case LWZ: |
| case STB: |
| case STH: |
| case STW: |
| case ADDI: |
| tcg_out_mls_d(s, opi, rt, base, offset, 0); |
| return; |
| case LWA: |
| tcg_out_8ls_d(s, PLWA, rt, base, offset, 0); |
| return; |
| case LD: |
| tcg_out_8ls_d(s, PLD, rt, base, offset, 0); |
| return; |
| case STD: |
| tcg_out_8ls_d(s, PSTD, rt, base, offset, 0); |
| return; |
| case LXSD: |
| tcg_out_8ls_d(s, PLXSD, rt & 31, base, offset, 0); |
| return; |
| case STXSD: |
| tcg_out_8ls_d(s, PSTXSD, rt & 31, base, offset, 0); |
| return; |
| case LXV: |
| tcg_out_8ls_d(s, PLXV, rt & 31, base, offset, 0); |
| return; |
| case STXV: |
| tcg_out_8ls_d(s, PSTXV, rt & 31, base, offset, 0); |
| return; |
| } |
| } |
| |
| /* For unaligned, or very large offsets, use the indexed form. */ |
| if (offset & align || offset != (int32_t)offset || opi == 0) { |
| if (rs == base) { |
| rs = TCG_REG_R0; |
| } |
| tcg_debug_assert(!is_int_store || rs != rt); |
| tcg_out_movi(s, TCG_TYPE_PTR, rs, orig); |
| tcg_out32(s, opx | TAB(rt & 31, base, rs)); |
| return; |
| } |
| |
| l0 = (int16_t)offset; |
| offset = (offset - l0) >> 16; |
| l1 = (int16_t)offset; |
| |
| if (l1 < 0 && orig >= 0) { |
| extra = 0x4000; |
| l1 = (int16_t)(offset - 0x4000); |
| } |
| if (l1) { |
| tcg_out32(s, ADDIS | TAI(rs, base, l1)); |
| base = rs; |
| } |
| if (extra) { |
| tcg_out32(s, ADDIS | TAI(rs, base, extra)); |
| base = rs; |
| } |
| if (opi != ADDI || base != rt || l0 != 0) { |
| tcg_out32(s, opi | TAI(rt & 31, base, l0)); |
| } |
| } |
| |
| static void tcg_out_vsldoi(TCGContext *s, TCGReg ret, |
| TCGReg va, TCGReg vb, int shb) |
| { |
| tcg_out32(s, VSLDOI | VRT(ret) | VRA(va) | VRB(vb) | (shb << 6)); |
| } |
| |
| static void tcg_out_ld(TCGContext *s, TCGType type, TCGReg ret, |
| TCGReg base, intptr_t offset) |
| { |
| int shift; |
| |
| switch (type) { |
| case TCG_TYPE_I32: |
| if (ret < TCG_REG_V0) { |
| tcg_out_mem_long(s, LWZ, LWZX, ret, base, offset); |
| break; |
| } |
| if (have_isa_2_07 && have_vsx) { |
| tcg_out_mem_long(s, 0, LXSIWZX, ret, base, offset); |
| break; |
| } |
| tcg_debug_assert((offset & 3) == 0); |
| tcg_out_mem_long(s, 0, LVEWX, ret, base, offset); |
| shift = (offset - 4) & 0xc; |
| if (shift) { |
| tcg_out_vsldoi(s, ret, ret, ret, shift); |
| } |
| break; |
| case TCG_TYPE_I64: |
| if (ret < TCG_REG_V0) { |
| tcg_debug_assert(TCG_TARGET_REG_BITS == 64); |
| tcg_out_mem_long(s, LD, LDX, ret, base, offset); |
| break; |
| } |
| /* fallthru */ |
| case TCG_TYPE_V64: |
| tcg_debug_assert(ret >= TCG_REG_V0); |
| if (have_vsx) { |
| tcg_out_mem_long(s, have_isa_3_00 ? LXSD : 0, LXSDX, |
| ret, base, offset); |
| break; |
| } |
| tcg_debug_assert((offset & 7) == 0); |
| tcg_out_mem_long(s, 0, LVX, ret, base, offset & -16); |
| if (offset & 8) { |
| tcg_out_vsldoi(s, ret, ret, ret, 8); |
| } |
| break; |
| case TCG_TYPE_V128: |
| tcg_debug_assert(ret >= TCG_REG_V0); |
| tcg_debug_assert((offset & 15) == 0); |
| tcg_out_mem_long(s, have_isa_3_00 ? LXV : 0, |
| LVX, ret, base, offset); |
| break; |
| default: |
| g_assert_not_reached(); |
| } |
| } |
| |
| static void tcg_out_st(TCGContext *s, TCGType type, TCGReg arg, |
| TCGReg base, intptr_t offset) |
| { |
| int shift; |
| |
| switch (type) { |
| case TCG_TYPE_I32: |
| if (arg < TCG_REG_V0) { |
| tcg_out_mem_long(s, STW, STWX, arg, base, offset); |
| break; |
| } |
| if (have_isa_2_07 && have_vsx) { |
| tcg_out_mem_long(s, 0, STXSIWX, arg, base, offset); |
| break; |
| } |
| assert((offset & 3) == 0); |
| tcg_debug_assert((offset & 3) == 0); |
| shift = (offset - 4) & 0xc; |
| if (shift) { |
| tcg_out_vsldoi(s, TCG_VEC_TMP1, arg, arg, shift); |
| arg = TCG_VEC_TMP1; |
| } |
| tcg_out_mem_long(s, 0, STVEWX, arg, base, offset); |
| break; |
| case TCG_TYPE_I64: |
| if (arg < TCG_REG_V0) { |
| tcg_debug_assert(TCG_TARGET_REG_BITS == 64); |
| tcg_out_mem_long(s, STD, STDX, arg, base, offset); |
| break; |
| } |
| /* fallthru */ |
| case TCG_TYPE_V64: |
| tcg_debug_assert(arg >= TCG_REG_V0); |
| if (have_vsx) { |
| tcg_out_mem_long(s, have_isa_3_00 ? STXSD : 0, |
| STXSDX, arg, base, offset); |
| break; |
| } |
| tcg_debug_assert((offset & 7) == 0); |
| if (offset & 8) { |
| tcg_out_vsldoi(s, TCG_VEC_TMP1, arg, arg, 8); |
| arg = TCG_VEC_TMP1; |
| } |
| tcg_out_mem_long(s, 0, STVEWX, arg, base, offset); |
| tcg_out_mem_long(s, 0, STVEWX, arg, base, offset + 4); |
| break; |
| case TCG_TYPE_V128: |
| tcg_debug_assert(arg >= TCG_REG_V0); |
| tcg_out_mem_long(s, have_isa_3_00 ? STXV : 0, |
| STVX, arg, base, offset); |
| break; |
| default: |
| g_assert_not_reached(); |
| } |
| } |
| |
| static inline bool tcg_out_sti(TCGContext *s, TCGType type, TCGArg val, |
| TCGReg base, intptr_t ofs) |
| { |
| return false; |
| } |
| |
| /* |
| * Set dest non-zero if and only if (arg1 & arg2) is non-zero. |
| * If RC, then also set RC0. |
| */ |
| static void tcg_out_test(TCGContext *s, TCGReg dest, TCGReg arg1, TCGArg arg2, |
| bool const_arg2, TCGType type, bool rc) |
| { |
| int mb, me; |
| |
| if (!const_arg2) { |
| tcg_out32(s, AND | SAB(arg1, dest, arg2) | rc); |
| return; |
| } |
| |
| if (type == TCG_TYPE_I32) { |
| arg2 = (uint32_t)arg2; |
| } |
| |
| if ((arg2 & ~0xffff) == 0) { |
| tcg_out32(s, ANDI | SAI(arg1, dest, arg2)); |
| return; |
| } |
| if ((arg2 & ~0xffff0000ull) == 0) { |
| tcg_out32(s, ANDIS | SAI(arg1, dest, arg2 >> 16)); |
| return; |
| } |
| if (arg2 == (uint32_t)arg2 && mask_operand(arg2, &mb, &me)) { |
| tcg_out_rlw_rc(s, RLWINM, dest, arg1, 0, mb, me, rc); |
| return; |
| } |
| if (TCG_TARGET_REG_BITS == 64) { |
| int sh = clz64(arg2); |
| if (mask64_operand(arg2 << sh, &mb, &me)) { |
| tcg_out_rld_rc(s, RLDICR, dest, arg1, sh, me, rc); |
| return; |
| } |
| } |
| /* Constraints should satisfy this. */ |
| g_assert_not_reached(); |
| } |
| |
| static void tcg_out_cmp(TCGContext *s, int cond, TCGArg arg1, TCGArg arg2, |
| int const_arg2, int cr, TCGType type) |
| { |
| int imm; |
| uint32_t op; |
| |
| tcg_debug_assert(TCG_TARGET_REG_BITS == 64 || type == TCG_TYPE_I32); |
| |
| /* |
| * Simplify the comparisons below wrt CMPI. |
| * All of the tests are 16-bit, so a 32-bit sign extend always works. |
| */ |
| if (type == TCG_TYPE_I32) { |
| arg2 = (int32_t)arg2; |
| } |
| |
| switch (cond) { |
| case TCG_COND_EQ: |
| case TCG_COND_NE: |
| if (const_arg2) { |
| if ((int16_t) arg2 == arg2) { |
| op = CMPI; |
| imm = 1; |
| break; |
| } else if ((uint16_t) arg2 == arg2) { |
| op = CMPLI; |
| imm = 1; |
| break; |
| } |
| } |
| op = CMPL; |
| imm = 0; |
| break; |
| |
| case TCG_COND_TSTEQ: |
| case TCG_COND_TSTNE: |
| tcg_debug_assert(cr == 0); |
| tcg_out_test(s, TCG_REG_R0, arg1, arg2, const_arg2, type, true); |
| return; |
| |
| case TCG_COND_LT: |
| case TCG_COND_GE: |
| case TCG_COND_LE: |
| case TCG_COND_GT: |
| if (const_arg2) { |
| if ((int16_t) arg2 == arg2) { |
| op = CMPI; |
| imm = 1; |
| break; |
| } |
| } |
| op = CMP; |
| imm = 0; |
| break; |
| |
| case TCG_COND_LTU: |
| case TCG_COND_GEU: |
| case TCG_COND_LEU: |
| case TCG_COND_GTU: |
| if (const_arg2) { |
| if ((uint16_t) arg2 == arg2) { |
| op = CMPLI; |
| imm = 1; |
| break; |
| } |
| } |
| op = CMPL; |
| imm = 0; |
| break; |
| |
| default: |
| g_assert_not_reached(); |
| } |
| op |= BF(cr) | ((type == TCG_TYPE_I64) << 21); |
| |
| if (imm) { |
| tcg_out32(s, op | RA(arg1) | (arg2 & 0xffff)); |
| } else { |
| if (const_arg2) { |
| tcg_out_movi(s, type, TCG_REG_R0, arg2); |
| arg2 = TCG_REG_R0; |
| } |
| tcg_out32(s, op | RA(arg1) | RB(arg2)); |
| } |
| } |
| |
| static void tcg_out_setcond_eq0(TCGContext *s, TCGType type, |
| TCGReg dst, TCGReg src, bool neg) |
| { |
| if (neg && (TCG_TARGET_REG_BITS == 32 || type == TCG_TYPE_I64)) { |
| /* |
| * X != 0 implies X + -1 generates a carry. |
| * RT = (~X + X) + CA |
| * = -1 + CA |
| * = CA ? 0 : -1 |
| */ |
| tcg_out32(s, ADDIC | TAI(TCG_REG_R0, src, -1)); |
| tcg_out32(s, SUBFE | TAB(dst, src, src)); |
| return; |
| } |
| |
| if (type == TCG_TYPE_I32) { |
| tcg_out32(s, CNTLZW | RS(src) | RA(dst)); |
| tcg_out_shri32(s, dst, dst, 5); |
| } else { |
| tcg_out32(s, CNTLZD | RS(src) | RA(dst)); |
| tcg_out_shri64(s, dst, dst, 6); |
| } |
| if (neg) { |
| tcg_out32(s, NEG | RT(dst) | RA(dst)); |
| } |
| } |
| |
| static void tcg_out_setcond_ne0(TCGContext *s, TCGType type, |
| TCGReg dst, TCGReg src, bool neg) |
| { |
| if (!neg && (TCG_TARGET_REG_BITS == 32 || type == TCG_TYPE_I64)) { |
| /* |
| * X != 0 implies X + -1 generates a carry. Extra addition |
| * trickery means: R = X-1 + ~X + C = X-1 + (-X+1) + C = C. |
| */ |
| tcg_out32(s, ADDIC | TAI(TCG_REG_R0, src, -1)); |
| tcg_out32(s, SUBFE | TAB(dst, TCG_REG_R0, src)); |
| return; |
| } |
| tcg_out_setcond_eq0(s, type, dst, src, false); |
| if (neg) { |
| tcg_out32(s, ADDI | TAI(dst, dst, -1)); |
| } else { |
| tcg_out_xori32(s, dst, dst, 1); |
| } |
| } |
| |
| static TCGReg tcg_gen_setcond_xor(TCGContext *s, TCGReg arg1, TCGArg arg2, |
| bool const_arg2) |
| { |
| if (const_arg2) { |
| if ((uint32_t)arg2 == arg2) { |
| tcg_out_xori32(s, TCG_REG_R0, arg1, arg2); |
| } else { |
| tcg_out_movi(s, TCG_TYPE_I64, TCG_REG_R0, arg2); |
| tcg_out32(s, XOR | SAB(arg1, TCG_REG_R0, TCG_REG_R0)); |
| } |
| } else { |
| tcg_out32(s, XOR | SAB(arg1, TCG_REG_R0, arg2)); |
| } |
| return TCG_REG_R0; |
| } |
| |
| static void tcg_out_setcond(TCGContext *s, TCGType type, TCGCond cond, |
| TCGArg arg0, TCGArg arg1, TCGArg arg2, |
| int const_arg2, bool neg) |
| { |
| int sh; |
| bool inv; |
| |
| tcg_debug_assert(TCG_TARGET_REG_BITS == 64 || type == TCG_TYPE_I32); |
| |
| /* Ignore high bits of a potential constant arg2. */ |
| if (type == TCG_TYPE_I32) { |
| arg2 = (uint32_t)arg2; |
| } |
| |
| /* With SETBC/SETBCR, we can always implement with 2 insns. */ |
| if (have_isa_3_10) { |
| tcg_insn_unit bi, opc; |
| |
| tcg_out_cmp(s, cond, arg1, arg2, const_arg2, 0, type); |
| |
| /* Re-use tcg_to_bc for BI and BO_COND_{TRUE,FALSE}. */ |
| bi = tcg_to_bc[cond] & (0x1f << 16); |
| if (tcg_to_bc[cond] & BO(8)) { |
| opc = neg ? SETNBC : SETBC; |
| } else { |
| opc = neg ? SETNBCR : SETBCR; |
| } |
| tcg_out32(s, opc | RT(arg0) | bi); |
| return; |
| } |
| |
| /* Handle common and trivial cases before handling anything else. */ |
| if (arg2 == 0) { |
| switch (cond) { |
| case TCG_COND_EQ: |
| tcg_out_setcond_eq0(s, type, arg0, arg1, neg); |
| return; |
| case TCG_COND_NE: |
| tcg_out_setcond_ne0(s, type, arg0, arg1, neg); |
| return; |
| case TCG_COND_GE: |
| tcg_out32(s, NOR | SAB(arg1, arg0, arg1)); |
| arg1 = arg0; |
| /* FALLTHRU */ |
| case TCG_COND_LT: |
| /* Extract the sign bit. */ |
| if (type == TCG_TYPE_I32) { |
| if (neg) { |
| tcg_out_sari32(s, arg0, arg1, 31); |
| } else { |
| tcg_out_shri32(s, arg0, arg1, 31); |
| } |
| } else { |
| if (neg) { |
| tcg_out_sari64(s, arg0, arg1, 63); |
| } else { |
| tcg_out_shri64(s, arg0, arg1, 63); |
| } |
| } |
| return; |
| default: |
| break; |
| } |
| } |
| |
| /* If we have ISEL, we can implement everything with 3 or 4 insns. |
| All other cases below are also at least 3 insns, so speed up the |
| code generator by not considering them and always using ISEL. */ |
| if (have_isel) { |
| int isel, tab; |
| |
| tcg_out_cmp(s, cond, arg1, arg2, const_arg2, 0, type); |
| |
| isel = tcg_to_isel[cond]; |
| |
| tcg_out_movi(s, type, arg0, neg ? -1 : 1); |
| if (isel & 1) { |
| /* arg0 = (bc ? 0 : 1) */ |
| tab = TAB(arg0, 0, arg0); |
| isel &= ~1; |
| } else { |
| /* arg0 = (bc ? 1 : 0) */ |
| tcg_out_movi(s, type, TCG_REG_R0, 0); |
| tab = TAB(arg0, arg0, TCG_REG_R0); |
| } |
| tcg_out32(s, isel | tab); |
| return; |
| } |
| |
| inv = false; |
| switch (cond) { |
| case TCG_COND_EQ: |
| arg1 = tcg_gen_setcond_xor(s, arg1, arg2, const_arg2); |
| tcg_out_setcond_eq0(s, type, arg0, arg1, neg); |
| break; |
| |
| case TCG_COND_NE: |
| arg1 = tcg_gen_setcond_xor(s, arg1, arg2, const_arg2); |
| tcg_out_setcond_ne0(s, type, arg0, arg1, neg); |
| break; |
| |
| case TCG_COND_TSTEQ: |
| tcg_out_test(s, TCG_REG_R0, arg1, arg2, const_arg2, type, false); |
| tcg_out_setcond_eq0(s, type, arg0, TCG_REG_R0, neg); |
| break; |
| |
| case TCG_COND_TSTNE: |
| tcg_out_test(s, TCG_REG_R0, arg1, arg2, const_arg2, type, false); |
| tcg_out_setcond_ne0(s, type, arg0, TCG_REG_R0, neg); |
| break; |
| |
| case TCG_COND_LE: |
| case TCG_COND_LEU: |
| inv = true; |
| /* fall through */ |
| case TCG_COND_GT: |
| case TCG_COND_GTU: |
| sh = 30; /* CR7 CR_GT */ |
| goto crtest; |
| |
| case TCG_COND_GE: |
| case TCG_COND_GEU: |
| inv = true; |
| /* fall through */ |
| case TCG_COND_LT: |
| case TCG_COND_LTU: |
| sh = 29; /* CR7 CR_LT */ |
| goto crtest; |
| |
| crtest: |
| tcg_out_cmp(s, cond, arg1, arg2, const_arg2, 7, type); |
| tcg_out32(s, MFOCRF | RT(TCG_REG_R0) | FXM(7)); |
| tcg_out_rlw(s, RLWINM, arg0, TCG_REG_R0, sh, 31, 31); |
| if (neg && inv) { |
| tcg_out32(s, ADDI | TAI(arg0, arg0, -1)); |
| } else if (neg) { |
| tcg_out32(s, NEG | RT(arg0) | RA(arg0)); |
| } else if (inv) { |
| tcg_out_xori32(s, arg0, arg0, 1); |
| } |
| break; |
| |
| default: |
| g_assert_not_reached(); |
| } |
| } |
| |
| static void tcg_out_bc(TCGContext *s, TCGCond cond, int bd) |
| { |
| tcg_out32(s, tcg_to_bc[cond] | bd); |
| } |
| |
| static void tcg_out_bc_lab(TCGContext *s, TCGCond cond, TCGLabel *l) |
| { |
| int bd = 0; |
| if (l->has_value) { |
| bd = reloc_pc14_val(tcg_splitwx_to_rx(s->code_ptr), l->u.value_ptr); |
| } else { |
| tcg_out_reloc(s, s->code_ptr, R_PPC_REL14, l, 0); |
| } |
| tcg_out_bc(s, cond, bd); |
| } |
| |
| static void tcg_out_brcond(TCGContext *s, TCGCond cond, |
| TCGArg arg1, TCGArg arg2, int const_arg2, |
| TCGLabel *l, TCGType type) |
| { |
| tcg_out_cmp(s, cond, arg1, arg2, const_arg2, 0, type); |
| tcg_out_bc_lab(s, cond, l); |
| } |
| |
| static void tcg_out_movcond(TCGContext *s, TCGType type, TCGCond cond, |
| TCGArg dest, TCGArg c1, TCGArg c2, TCGArg v1, |
| TCGArg v2, bool const_c2) |
| { |
| /* If for some reason both inputs are zero, don't produce bad code. */ |
| if (v1 == 0 && v2 == 0) { |
| tcg_out_movi(s, type, dest, 0); |
| return; |
| } |
| |
| tcg_out_cmp(s, cond, c1, c2, const_c2, 0, type); |
| |
| if (have_isel) { |
| int isel = tcg_to_isel[cond]; |
| |
| /* Swap the V operands if the operation indicates inversion. */ |
| if (isel & 1) { |
| int t = v1; |
| v1 = v2; |
| v2 = t; |
| isel &= ~1; |
| } |
| /* V1 == 0 is handled by isel; V2 == 0 must be handled by hand. */ |
| if (v2 == 0) { |
| tcg_out_movi(s, type, TCG_REG_R0, 0); |
| } |
| tcg_out32(s, isel | TAB(dest, v1, v2)); |
| } else { |
| if (dest == v2) { |
| cond = tcg_invert_cond(cond); |
| v2 = v1; |
| } else if (dest != v1) { |
| if (v1 == 0) { |
| tcg_out_movi(s, type, dest, 0); |
| } else { |
| tcg_out_mov(s, type, dest, v1); |
| } |
| } |
| /* Branch forward over one insn */ |
| tcg_out_bc(s, cond, 8); |
| if (v2 == 0) { |
| tcg_out_movi(s, type, dest, 0); |
| } else { |
| tcg_out_mov(s, type, dest, v2); |
| } |
| } |
| } |
| |
| static void tcg_out_cntxz(TCGContext *s, TCGType type, uint32_t opc, |
| TCGArg a0, TCGArg a1, TCGArg a2, bool const_a2) |
| { |
| if (const_a2 && a2 == (type == TCG_TYPE_I32 ? 32 : 64)) { |
| tcg_out32(s, opc | RA(a0) | RS(a1)); |
| } else { |
| tcg_out_cmp(s, TCG_COND_EQ, a1, 0, 1, 0, type); |
| /* Note that the only other valid constant for a2 is 0. */ |
| if (have_isel) { |
| tcg_out32(s, opc | RA(TCG_REG_R0) | RS(a1)); |
| tcg_out32(s, tcg_to_isel[TCG_COND_EQ] | TAB(a0, a2, TCG_REG_R0)); |
| } else if (!const_a2 && a0 == a2) { |
| tcg_out_bc(s, TCG_COND_EQ, 8); |
| tcg_out32(s, opc | RA(a0) | RS(a1)); |
| } else { |
| tcg_out32(s, opc | RA(a0) | RS(a1)); |
| tcg_out_bc(s, TCG_COND_NE, 8); |
| if (const_a2) { |
| tcg_out_movi(s, type, a0, 0); |
| } else { |
| tcg_out_mov(s, type, a0, a2); |
| } |
| } |
| } |
| } |
| |
| static void tcg_out_cmp2(TCGContext *s, const TCGArg *args, |
| const int *const_args) |
| { |
| static const struct { uint8_t bit1, bit2; } bits[] = { |
| [TCG_COND_LT ] = { CR_LT, CR_LT }, |
| [TCG_COND_LE ] = { CR_LT, CR_GT }, |
| [TCG_COND_GT ] = { CR_GT, CR_GT }, |
| [TCG_COND_GE ] = { CR_GT, CR_LT }, |
| [TCG_COND_LTU] = { CR_LT, CR_LT }, |
| [TCG_COND_LEU] = { CR_LT, CR_GT }, |
| [TCG_COND_GTU] = { CR_GT, CR_GT }, |
| [TCG_COND_GEU] = { CR_GT, CR_LT }, |
| }; |
| |
| TCGCond cond = args[4], cond2; |
| TCGArg al, ah, bl, bh; |
| int blconst, bhconst; |
| int op, bit1, bit2; |
| |
| al = args[0]; |
| ah = args[1]; |
| bl = args[2]; |
| bh = args[3]; |
| blconst = const_args[2]; |
| bhconst = const_args[3]; |
| |
| switch (cond) { |
| case TCG_COND_EQ: |
| op = CRAND; |
| goto do_equality; |
| case TCG_COND_NE: |
| op = CRNAND; |
| do_equality: |
| tcg_out_cmp(s, cond, al, bl, blconst, 6, TCG_TYPE_I32); |
| tcg_out_cmp(s, cond, ah, bh, bhconst, 7, TCG_TYPE_I32); |
| tcg_out32(s, op | BT(0, CR_EQ) | BA(6, CR_EQ) | BB(7, CR_EQ)); |
| break; |
| |
| case TCG_COND_TSTEQ: |
| case TCG_COND_TSTNE: |
| if (blconst) { |
| tcg_out_andi32(s, TCG_REG_R0, al, bl); |
| } else { |
| tcg_out32(s, AND | SAB(al, TCG_REG_R0, bl)); |
| } |
| if (bhconst) { |
| tcg_out_andi32(s, TCG_REG_TMP1, ah, bh); |
| } else { |
| tcg_out32(s, AND | SAB(ah, TCG_REG_TMP1, bh)); |
| } |
| tcg_out32(s, OR | SAB(TCG_REG_R0, TCG_REG_R0, TCG_REG_TMP1) | 1); |
| break; |
| |
| case TCG_COND_LT: |
| case TCG_COND_LE: |
| case TCG_COND_GT: |
| case TCG_COND_GE: |
| case TCG_COND_LTU: |
| case TCG_COND_LEU: |
| case TCG_COND_GTU: |
| case TCG_COND_GEU: |
| bit1 = bits[cond].bit1; |
| bit2 = bits[cond].bit2; |
| op = (bit1 != bit2 ? CRANDC : CRAND); |
| cond2 = tcg_unsigned_cond(cond); |
| |
| tcg_out_cmp(s, cond, ah, bh, bhconst, 6, TCG_TYPE_I32); |
| tcg_out_cmp(s, cond2, al, bl, blconst, 7, TCG_TYPE_I32); |
| tcg_out32(s, op | BT(0, CR_EQ) | BA(6, CR_EQ) | BB(7, bit2)); |
| tcg_out32(s, CROR | BT(0, CR_EQ) | BA(6, bit1) | BB(0, CR_EQ)); |
| break; |
| |
| default: |
| g_assert_not_reached(); |
| } |
| } |
| |
| static void tcg_out_setcond2(TCGContext *s, const TCGArg *args, |
| const int *const_args) |
| { |
| tcg_out_cmp2(s, args + 1, const_args + 1); |
| tcg_out32(s, MFOCRF | RT(TCG_REG_R0) | FXM(0)); |
| tcg_out_rlw(s, RLWINM, args[0], TCG_REG_R0, CR_EQ + 0*4 + 1, 31, 31); |
| } |
| |
| static void tcg_out_brcond2(TCGContext *s, const TCGArg *args, |
| const int *const_args) |
| { |
| tcg_out_cmp2(s, args, const_args); |
| tcg_out_bc_lab(s, TCG_COND_EQ, arg_label(args[5])); |
| } |
| |
| static void tcg_out_mb(TCGContext *s, TCGArg a0) |
| { |
| uint32_t insn; |
| |
| if (a0 & TCG_MO_ST_LD) { |
| insn = HWSYNC; |
| } else { |
| insn = LWSYNC; |
| } |
| |
| tcg_out32(s, insn); |
| } |
| |
| static void tcg_out_call_int(TCGContext *s, int lk, |
| const tcg_insn_unit *target) |
| { |
| #ifdef _CALL_AIX |
| /* Look through the descriptor. If the branch is in range, and we |
| don't have to spend too much effort on building the toc. */ |
| const void *tgt = ((const void * const *)target)[0]; |
| uintptr_t toc = ((const uintptr_t *)target)[1]; |
| intptr_t diff = tcg_pcrel_diff(s, tgt); |
| |
| if (in_range_b(diff) && toc == (uint32_t)toc) { |
| tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_TMP1, toc); |
| tcg_out_b(s, lk, tgt); |
| } else { |
| /* Fold the low bits of the constant into the addresses below. */ |
| intptr_t arg = (intptr_t)target; |
| int ofs = (int16_t)arg; |
| |
| if (ofs + 8 < 0x8000) { |
| arg -= ofs; |
| } else { |
| ofs = 0; |
| } |
| tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_TMP1, arg); |
| tcg_out_ld(s, TCG_TYPE_PTR, TCG_REG_R0, TCG_REG_TMP1, ofs); |
| tcg_out32(s, MTSPR | RA(TCG_REG_R0) | CTR); |
| tcg_out_ld(s, TCG_TYPE_PTR, TCG_REG_R2, TCG_REG_TMP1, ofs + SZP); |
| tcg_out32(s, BCCTR | BO_ALWAYS | lk); |
| } |
| #elif defined(_CALL_ELF) && _CALL_ELF == 2 |
| intptr_t diff; |
| |
| /* In the ELFv2 ABI, we have to set up r12 to contain the destination |
| address, which the callee uses to compute its TOC address. */ |
| /* FIXME: when the branch is in range, we could avoid r12 load if we |
| knew that the destination uses the same TOC, and what its local |
| entry point offset is. */ |
| tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_R12, (intptr_t)target); |
| |
| diff = tcg_pcrel_diff(s, target); |
| if (in_range_b(diff)) { |
| tcg_out_b(s, lk, target); |
| } else { |
| tcg_out32(s, MTSPR | RS(TCG_REG_R12) | CTR); |
| tcg_out32(s, BCCTR | BO_ALWAYS | lk); |
| } |
| #else |
| tcg_out_b(s, lk, target); |
| #endif |
| } |
| |
| static void tcg_out_call(TCGContext *s, const tcg_insn_unit *target, |
| const TCGHelperInfo *info) |
| { |
| tcg_out_call_int(s, LK, target); |
| } |
| |
| static const uint32_t qemu_ldx_opc[(MO_SSIZE + MO_BSWAP) + 1] = { |
| [MO_UB] = LBZX, |
| [MO_UW] = LHZX, |
| [MO_UL] = LWZX, |
| [MO_UQ] = LDX, |
| [MO_SW] = LHAX, |
| [MO_SL] = LWAX, |
| [MO_BSWAP | MO_UB] = LBZX, |
| [MO_BSWAP | MO_UW] = LHBRX, |
| [MO_BSWAP | MO_UL] = LWBRX, |
| [MO_BSWAP | MO_UQ] = LDBRX, |
| }; |
| |
| static const uint32_t qemu_stx_opc[(MO_SIZE + MO_BSWAP) + 1] = { |
| [MO_UB] = STBX, |
| [MO_UW] = STHX, |
| [MO_UL] = STWX, |
| [MO_UQ] = STDX, |
| [MO_BSWAP | MO_UB] = STBX, |
| [MO_BSWAP | MO_UW] = STHBRX, |
| [MO_BSWAP | MO_UL] = STWBRX, |
| [MO_BSWAP | MO_UQ] = STDBRX, |
| }; |
| |
| static TCGReg ldst_ra_gen(TCGContext *s, const TCGLabelQemuLdst *l, int arg) |
| { |
| if (arg < 0) { |
| arg = TCG_REG_TMP1; |
| } |
| tcg_out32(s, MFSPR | RT(arg) | LR); |
| return arg; |
| } |
| |
| /* |
| * For the purposes of ppc32 sorting 4 input registers into 4 argument |
| * registers, there is an outside chance we would require 3 temps. |
| */ |
| static const TCGLdstHelperParam ldst_helper_param = { |
| .ra_gen = ldst_ra_gen, |
| .ntmp = 3, |
| .tmp = { TCG_REG_TMP1, TCG_REG_TMP2, TCG_REG_R0 } |
| }; |
| |
| static bool tcg_out_qemu_ld_slow_path(TCGContext *s, TCGLabelQemuLdst *lb) |
| { |
| MemOp opc = get_memop(lb->oi); |
| |
| if (!reloc_pc14(lb->label_ptr[0], tcg_splitwx_to_rx(s->code_ptr))) { |
| return false; |
| } |
| |
| tcg_out_ld_helper_args(s, lb, &ldst_helper_param); |
| tcg_out_call_int(s, LK, qemu_ld_helpers[opc & MO_SIZE]); |
| tcg_out_ld_helper_ret(s, lb, false, &ldst_helper_param); |
| |
| tcg_out_b(s, 0, lb->raddr); |
| return true; |
| } |
| |
| static bool tcg_out_qemu_st_slow_path(TCGContext *s, TCGLabelQemuLdst *lb) |
| { |
| MemOp opc = get_memop(lb->oi); |
| |
| if (!reloc_pc14(lb->label_ptr[0], tcg_splitwx_to_rx(s->code_ptr))) { |
| return false; |
| } |
| |
| tcg_out_st_helper_args(s, lb, &ldst_helper_param); |
| tcg_out_call_int(s, LK, qemu_st_helpers[opc & MO_SIZE]); |
| |
| tcg_out_b(s, 0, lb->raddr); |
| return true; |
| } |
| |
| typedef struct { |
| TCGReg base; |
| TCGReg index; |
| TCGAtomAlign aa; |
| } HostAddress; |
| |
| bool tcg_target_has_memory_bswap(MemOp memop) |
| { |
| TCGAtomAlign aa; |
| |
| if ((memop & MO_SIZE) <= MO_64) { |
| return true; |
| } |
| |
| /* |
| * Reject 16-byte memop with 16-byte atomicity, |
| * but do allow a pair of 64-bit operations. |
| */ |
| aa = atom_and_align_for_opc(tcg_ctx, memop, MO_ATOM_IFALIGN, true); |
| return aa.atom <= MO_64; |
| } |
| |
| /* We expect to use a 16-bit negative offset from ENV. */ |
| #define MIN_TLB_MASK_TABLE_OFS -32768 |
| |
| /* |
| * For system-mode, perform the TLB load and compare. |
| * For user-mode, perform any required alignment tests. |
| * In both cases, return a TCGLabelQemuLdst structure if the slow path |
| * is required and fill in @h with the host address for the fast path. |
| */ |
| static TCGLabelQemuLdst *prepare_host_addr(TCGContext *s, HostAddress *h, |
| TCGReg addrlo, TCGReg addrhi, |
| MemOpIdx oi, bool is_ld) |
| { |
| TCGType addr_type = s->addr_type; |
| TCGLabelQemuLdst *ldst = NULL; |
| MemOp opc = get_memop(oi); |
| MemOp a_bits, s_bits; |
| |
| /* |
| * Book II, Section 1.4, Single-Copy Atomicity, specifies: |
| * |
| * Before 3.0, "An access that is not atomic is performed as a set of |
| * smaller disjoint atomic accesses. In general, the number and alignment |
| * of these accesses are implementation-dependent." Thus MO_ATOM_IFALIGN. |
| * |
| * As of 3.0, "the non-atomic access is performed as described in |
| * the corresponding list", which matches MO_ATOM_SUBALIGN. |
| */ |
| s_bits = opc & MO_SIZE; |
| h->aa = atom_and_align_for_opc(s, opc, |
| have_isa_3_00 ? MO_ATOM_SUBALIGN |
| : MO_ATOM_IFALIGN, |
| s_bits == MO_128); |
| a_bits = h->aa.align; |
| |
| if (tcg_use_softmmu) { |
| int mem_index = get_mmuidx(oi); |
| int cmp_off = is_ld ? offsetof(CPUTLBEntry, addr_read) |
| : offsetof(CPUTLBEntry, addr_write); |
| int fast_off = tlb_mask_table_ofs(s, mem_index); |
| int mask_off = fast_off + offsetof(CPUTLBDescFast, mask); |
| int table_off = fast_off + offsetof(CPUTLBDescFast, table); |
| |
| ldst = new_ldst_label(s); |
| ldst->is_ld = is_ld; |
| ldst->oi = oi; |
| ldst->addrlo_reg = addrlo; |
| ldst->addrhi_reg = addrhi; |
| |
| /* Load tlb_mask[mmu_idx] and tlb_table[mmu_idx]. */ |
| tcg_out_ld(s, TCG_TYPE_PTR, TCG_REG_TMP1, TCG_AREG0, mask_off); |
| tcg_out_ld(s, TCG_TYPE_PTR, TCG_REG_TMP2, TCG_AREG0, table_off); |
| |
| /* Extract the page index, shifted into place for tlb index. */ |
| if (TCG_TARGET_REG_BITS == 32) { |
| tcg_out_shri32(s, TCG_REG_R0, addrlo, |
| s->page_bits - CPU_TLB_ENTRY_BITS); |
| } else { |
| tcg_out_shri64(s, TCG_REG_R0, addrlo, |
| s->page_bits - CPU_TLB_ENTRY_BITS); |
| } |
| tcg_out32(s, AND | SAB(TCG_REG_TMP1, TCG_REG_TMP1, TCG_REG_R0)); |
| |
| /* |
| * Load the (low part) TLB comparator into TMP2. |
| * For 64-bit host, always load the entire 64-bit slot for simplicity. |
| * We will ignore the high bits with tcg_out_cmp(..., addr_type). |
| */ |
| if (TCG_TARGET_REG_BITS == 64) { |
| if (cmp_off == 0) { |
| tcg_out32(s, LDUX | TAB(TCG_REG_TMP2, |
| TCG_REG_TMP1, TCG_REG_TMP2)); |
| } else { |
| tcg_out32(s, ADD | TAB(TCG_REG_TMP1, |
| TCG_REG_TMP1, TCG_REG_TMP2)); |
| tcg_out_ld(s, TCG_TYPE_I64, TCG_REG_TMP2, |
| TCG_REG_TMP1, cmp_off); |
| } |
| } else if (cmp_off == 0 && !HOST_BIG_ENDIAN) { |
| tcg_out32(s, LWZUX | TAB(TCG_REG_TMP2, |
| TCG_REG_TMP1, TCG_REG_TMP2)); |
| } else { |
| tcg_out32(s, ADD | TAB(TCG_REG_TMP1, TCG_REG_TMP1, TCG_REG_TMP2)); |
| tcg_out_ld(s, TCG_TYPE_I32, TCG_REG_TMP2, TCG_REG_TMP1, |
| cmp_off + 4 * HOST_BIG_ENDIAN); |
| } |
| |
| /* |
| * Load the TLB addend for use on the fast path. |
| * Do this asap to minimize any load use delay. |
| */ |
| if (TCG_TARGET_REG_BITS == 64 || addr_type == TCG_TYPE_I32) { |
| tcg_out_ld(s, TCG_TYPE_PTR, TCG_REG_TMP1, TCG_REG_TMP1, |
| offsetof(CPUTLBEntry, addend)); |
| } |
| |
| /* Clear the non-page, non-alignment bits from the address in R0. */ |
| if (TCG_TARGET_REG_BITS == 32) { |
| /* |
| * We don't support unaligned accesses on 32-bits. |
| * Preserve the bottom bits and thus trigger a comparison |
| * failure on unaligned accesses. |
| */ |
| if (a_bits < s_bits) { |
| a_bits = s_bits; |
| } |
| tcg_out_rlw(s, RLWINM, TCG_REG_R0, addrlo, 0, |
| (32 - a_bits) & 31, 31 - s->page_bits); |
| } else { |
| TCGReg t = addrlo; |
| |
| /* |
| * If the access is unaligned, we need to make sure we fail if we |
| * cross a page boundary. The trick is to add the access size-1 |
| * to the address before masking the low bits. That will make the |
| * address overflow to the next page if we cross a page boundary, |
| * which will then force a mismatch of the TLB compare. |
| */ |
| if (a_bits < s_bits) { |
| unsigned a_mask = (1 << a_bits) - 1; |
| unsigned s_mask = (1 << s_bits) - 1; |
| tcg_out32(s, ADDI | TAI(TCG_REG_R0, t, s_mask - a_mask)); |
| t = TCG_REG_R0; |
| } |
| |
| /* Mask the address for the requested alignment. */ |
| if (addr_type == TCG_TYPE_I32) { |
| tcg_out_rlw(s, RLWINM, TCG_REG_R0, t, 0, |
| (32 - a_bits) & 31, 31 - s->page_bits); |
| } else if (a_bits == 0) { |
| tcg_out_rld(s, RLDICR, TCG_REG_R0, t, 0, 63 - s->page_bits); |
| } else { |
| tcg_out_rld(s, RLDICL, TCG_REG_R0, t, |
| 64 - s->page_bits, s->page_bits - a_bits); |
| tcg_out_rld(s, RLDICL, TCG_REG_R0, TCG_REG_R0, s->page_bits, 0); |
| } |
| } |
| |
| if (TCG_TARGET_REG_BITS == 32 && addr_type != TCG_TYPE_I32) { |
| /* Low part comparison into cr7. */ |
| tcg_out_cmp(s, TCG_COND_EQ, TCG_REG_R0, TCG_REG_TMP2, |
| 0, 7, TCG_TYPE_I32); |
| |
| /* Load the high part TLB comparator into TMP2. */ |
| tcg_out_ld(s, TCG_TYPE_I32, TCG_REG_TMP2, TCG_REG_TMP1, |
| cmp_off + 4 * !HOST_BIG_ENDIAN); |
| |
| /* Load addend, deferred for this case. */ |
| tcg_out_ld(s, TCG_TYPE_PTR, TCG_REG_TMP1, TCG_REG_TMP1, |
| offsetof(CPUTLBEntry, addend)); |
| |
| /* High part comparison into cr6. */ |
| tcg_out_cmp(s, TCG_COND_EQ, addrhi, TCG_REG_TMP2, |
| 0, 6, TCG_TYPE_I32); |
| |
| /* Combine comparisons into cr0. */ |
| tcg_out32(s, CRAND | BT(0, CR_EQ) | BA(6, CR_EQ) | BB(7, CR_EQ)); |
| } else { |
| /* Full comparison into cr0. */ |
| tcg_out_cmp(s, TCG_COND_EQ, TCG_REG_R0, TCG_REG_TMP2, |
| 0, 0, addr_type); |
| } |
| |
| /* Load a pointer into the current opcode w/conditional branch-link. */ |
| ldst->label_ptr[0] = s->code_ptr; |
| tcg_out_bc(s, TCG_COND_NE, LK); |
| |
| h->base = TCG_REG_TMP1; |
| } else { |
| if (a_bits) { |
| ldst = new_ldst_label(s); |
| ldst->is_ld = is_ld; |
| ldst->oi = oi; |
| ldst->addrlo_reg = addrlo; |
| ldst->addrhi_reg = addrhi; |
| |
| /* We are expecting a_bits to max out at 7, much lower than ANDI. */ |
| tcg_debug_assert(a_bits < 16); |
| tcg_out32(s, ANDI | SAI(addrlo, TCG_REG_R0, (1 << a_bits) - 1)); |
| |
| ldst->label_ptr[0] = s->code_ptr; |
| tcg_out32(s, BC | BI(0, CR_EQ) | BO_COND_FALSE | LK); |
| } |
| |
| h->base = guest_base ? TCG_GUEST_BASE_REG : 0; |
| } |
| |
| if (TCG_TARGET_REG_BITS == 64 && addr_type == TCG_TYPE_I32) { |
| /* Zero-extend the guest address for use in the host address. */ |
| tcg_out_ext32u(s, TCG_REG_R0, addrlo); |
| h->index = TCG_REG_R0; |
| } else { |
| h->index = addrlo; |
| } |
| |
| return ldst; |
| } |
| |
| static void tcg_out_qemu_ld(TCGContext *s, TCGReg datalo, TCGReg datahi, |
| TCGReg addrlo, TCGReg addrhi, |
| MemOpIdx oi, TCGType data_type) |
| { |
| MemOp opc = get_memop(oi); |
| TCGLabelQemuLdst *ldst; |
| HostAddress h; |
| |
| ldst = prepare_host_addr(s, &h, addrlo, addrhi, oi, true); |
| |
| if (TCG_TARGET_REG_BITS == 32 && (opc & MO_SIZE) == MO_64) { |
| if (opc & MO_BSWAP) { |
| tcg_out32(s, ADDI | TAI(TCG_REG_R0, h.index, 4)); |
| tcg_out32(s, LWBRX | TAB(datalo, h.base, h.index)); |
| tcg_out32(s, LWBRX | TAB(datahi, h.base, TCG_REG_R0)); |
| } else if (h.base != 0) { |
| tcg_out32(s, ADDI | TAI(TCG_REG_R0, h.index, 4)); |
| tcg_out32(s, LWZX | TAB(datahi, h.base, h.index)); |
| tcg_out32(s, LWZX | TAB(datalo, h.base, TCG_REG_R0)); |
| } else if (h.index == datahi) { |
| tcg_out32(s, LWZ | TAI(datalo, h.index, 4)); |
| tcg_out32(s, LWZ | TAI(datahi, h.index, 0)); |
| } else { |
| tcg_out32(s, LWZ | TAI(datahi, h.index, 0)); |
| tcg_out32(s, LWZ | TAI(datalo, h.index, 4)); |
| } |
| } else { |
| uint32_t insn = qemu_ldx_opc[opc & (MO_BSWAP | MO_SSIZE)]; |
| if (!have_isa_2_06 && insn == LDBRX) { |
| tcg_out32(s, ADDI | TAI(TCG_REG_R0, h.index, 4)); |
| tcg_out32(s, LWBRX | TAB(datalo, h.base, h.index)); |
| tcg_out32(s, LWBRX | TAB(TCG_REG_R0, h.base, TCG_REG_R0)); |
| tcg_out_rld(s, RLDIMI, datalo, TCG_REG_R0, 32, 0); |
| } else if (insn) { |
| tcg_out32(s, insn | TAB(datalo, h.base, h.index)); |
| } else { |
| insn = qemu_ldx_opc[opc & (MO_SIZE | MO_BSWAP)]; |
| tcg_out32(s, insn | TAB(datalo, h.base, h.index)); |
| tcg_out_movext(s, TCG_TYPE_REG, datalo, |
| TCG_TYPE_REG, opc & MO_SSIZE, datalo); |
| } |
| } |
| |
| if (ldst) { |
| ldst->type = data_type; |
| ldst->datalo_reg = datalo; |
| ldst->datahi_reg = datahi; |
| ldst->raddr = tcg_splitwx_to_rx(s->code_ptr); |
| } |
| } |
| |
| static void tcg_out_qemu_st(TCGContext *s, TCGReg datalo, TCGReg datahi, |
| TCGReg addrlo, TCGReg addrhi, |
| MemOpIdx oi, TCGType data_type) |
| { |
| MemOp opc = get_memop(oi); |
| TCGLabelQemuLdst *ldst; |
| HostAddress h; |
| |
| ldst = prepare_host_addr(s, &h, addrlo, addrhi, oi, false); |
| |
| if (TCG_TARGET_REG_BITS == 32 && (opc & MO_SIZE) == MO_64) { |
| if (opc & MO_BSWAP) { |
| tcg_out32(s, ADDI | TAI(TCG_REG_R0, h.index, 4)); |
| tcg_out32(s, STWBRX | SAB(datalo, h.base, h.index)); |
| tcg_out32(s, STWBRX | SAB(datahi, h.base, TCG_REG_R0)); |
| } else if (h.base != 0) { |
| tcg_out32(s, ADDI | TAI(TCG_REG_R0, h.index, 4)); |
| tcg_out32(s, STWX | SAB(datahi, h.base, h.index)); |
| tcg_out32(s, STWX | SAB(datalo, h.base, TCG_REG_R0)); |
| } else { |
| tcg_out32(s, STW | TAI(datahi, h.index, 0)); |
| tcg_out32(s, STW | TAI(datalo, h.index, 4)); |
| } |
| } else { |
| uint32_t insn = qemu_stx_opc[opc & (MO_BSWAP | MO_SIZE)]; |
| if (!have_isa_2_06 && insn == STDBRX) { |
| tcg_out32(s, STWBRX | SAB(datalo, h.base, h.index)); |
| tcg_out32(s, ADDI | TAI(TCG_REG_TMP1, h.index, 4)); |
| tcg_out_shri64(s, TCG_REG_R0, datalo, 32); |
| tcg_out32(s, STWBRX | SAB(TCG_REG_R0, h.base, TCG_REG_TMP1)); |
| } else { |
| tcg_out32(s, insn | SAB(datalo, h.base, h.index)); |
| } |
| } |
| |
| if (ldst) { |
| ldst->type = data_type; |
| ldst->datalo_reg = datalo; |
| ldst->datahi_reg = datahi; |
| ldst->raddr = tcg_splitwx_to_rx(s->code_ptr); |
| } |
| } |
| |
| static void tcg_out_qemu_ldst_i128(TCGContext *s, TCGReg datalo, TCGReg datahi, |
| TCGReg addr_reg, MemOpIdx oi, bool is_ld) |
| { |
| TCGLabelQemuLdst *ldst; |
| HostAddress h; |
| bool need_bswap; |
| uint32_t insn; |
| TCGReg index; |
| |
| ldst = prepare_host_addr(s, &h, addr_reg, -1, oi, is_ld); |
| |
| /* Compose the final address, as LQ/STQ have no indexing. */ |
| index = h.index; |
| if (h.base != 0) { |
| index = TCG_REG_TMP1; |
| tcg_out32(s, ADD | TAB(index, h.base, h.index)); |
| } |
| need_bswap = get_memop(oi) & MO_BSWAP; |
| |
| if (h.aa.atom == MO_128) { |
| tcg_debug_assert(!need_bswap); |
| tcg_debug_assert(datalo & 1); |
| tcg_debug_assert(datahi == datalo - 1); |
| tcg_debug_assert(!is_ld || datahi != index); |
| insn = is_ld ? LQ : STQ; |
| tcg_out32(s, insn | TAI(datahi, index, 0)); |
| } else { |
| TCGReg d1, d2; |
| |
| if (HOST_BIG_ENDIAN ^ need_bswap) { |
| d1 = datahi, d2 = datalo; |
| } else { |
| d1 = datalo, d2 = datahi; |
| } |
| |
| if (need_bswap) { |
| tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_R0, 8); |
| insn = is_ld ? LDBRX : STDBRX; |
| tcg_out32(s, insn | TAB(d1, 0, index)); |
| tcg_out32(s, insn | TAB(d2, index, TCG_REG_R0)); |
| } else { |
| insn = is_ld ? LD : STD; |
| tcg_out32(s, insn | TAI(d1, index, 0)); |
| tcg_out32(s, insn | TAI(d2, index, 8)); |
| } |
| } |
| |
| if (ldst) { |
| ldst->type = TCG_TYPE_I128; |
| ldst->datalo_reg = datalo; |
| ldst->datahi_reg = datahi; |
| ldst->raddr = tcg_splitwx_to_rx(s->code_ptr); |
| } |
| } |
| |
| static void tcg_out_nop_fill(tcg_insn_unit *p, int count) |
| { |
| int i; |
| for (i = 0; i < count; ++i) { |
| p[i] = NOP; |
| } |
| } |
| |
| /* Parameters for function call generation, used in tcg.c. */ |
| #define TCG_TARGET_STACK_ALIGN 16 |
| |
| #ifdef _CALL_AIX |
| # define LINK_AREA_SIZE (6 * SZR) |
| # define LR_OFFSET (1 * SZR) |
| # define TCG_TARGET_CALL_STACK_OFFSET (LINK_AREA_SIZE + 8 * SZR) |
| #elif defined(_CALL_DARWIN) |
| # define LINK_AREA_SIZE (6 * SZR) |
| # define LR_OFFSET (2 * SZR) |
| #elif TCG_TARGET_REG_BITS == 64 |
| # if defined(_CALL_ELF) && _CALL_ELF == 2 |
| # define LINK_AREA_SIZE (4 * SZR) |
| # define LR_OFFSET (1 * SZR) |
| # endif |
| #else /* TCG_TARGET_REG_BITS == 32 */ |
| # if defined(_CALL_SYSV) |
| # define LINK_AREA_SIZE (2 * SZR) |
| # define LR_OFFSET (1 * SZR) |
| # endif |
| #endif |
| #ifndef LR_OFFSET |
| # error "Unhandled abi" |
| #endif |
| #ifndef TCG_TARGET_CALL_STACK_OFFSET |
| # define TCG_TARGET_CALL_STACK_OFFSET LINK_AREA_SIZE |
| #endif |
| |
| #define CPU_TEMP_BUF_SIZE (CPU_TEMP_BUF_NLONGS * (int)sizeof(long)) |
| #define REG_SAVE_SIZE ((int)ARRAY_SIZE(tcg_target_callee_save_regs) * SZR) |
| |
| #define FRAME_SIZE ((TCG_TARGET_CALL_STACK_OFFSET \ |
| + TCG_STATIC_CALL_ARGS_SIZE \ |
| + CPU_TEMP_BUF_SIZE \ |
| + REG_SAVE_SIZE \ |
| + TCG_TARGET_STACK_ALIGN - 1) \ |
| & -TCG_TARGET_STACK_ALIGN) |
| |
| #define REG_SAVE_BOT (FRAME_SIZE - REG_SAVE_SIZE) |
| |
| static void tcg_target_qemu_prologue(TCGContext *s) |
| { |
| int i; |
| |
| #ifdef _CALL_AIX |
| const void **desc = (const void **)s->code_ptr; |
| desc[0] = tcg_splitwx_to_rx(desc + 2); /* entry point */ |
| desc[1] = 0; /* environment pointer */ |
| s->code_ptr = (void *)(desc + 2); /* skip over descriptor */ |
| #endif |
| |
| tcg_set_frame(s, TCG_REG_CALL_STACK, REG_SAVE_BOT - CPU_TEMP_BUF_SIZE, |
| CPU_TEMP_BUF_SIZE); |
| |
| /* Prologue */ |
| tcg_out32(s, MFSPR | RT(TCG_REG_R0) | LR); |
| tcg_out32(s, (SZR == 8 ? STDU : STWU) |
| | SAI(TCG_REG_R1, TCG_REG_R1, -FRAME_SIZE)); |
| |
| for (i = 0; i < ARRAY_SIZE(tcg_target_callee_save_regs); ++i) { |
| tcg_out_st(s, TCG_TYPE_REG, tcg_target_callee_save_regs[i], |
| TCG_REG_R1, REG_SAVE_BOT + i * SZR); |
| } |
| tcg_out_st(s, TCG_TYPE_PTR, TCG_REG_R0, TCG_REG_R1, FRAME_SIZE+LR_OFFSET); |
| |
| if (!tcg_use_softmmu && guest_base) { |
| tcg_out_movi_int(s, TCG_TYPE_PTR, TCG_GUEST_BASE_REG, guest_base, true); |
| tcg_regset_set_reg(s->reserved_regs, TCG_GUEST_BASE_REG); |
| } |
| |
| tcg_out_mov(s, TCG_TYPE_PTR, TCG_AREG0, tcg_target_call_iarg_regs[0]); |
| tcg_out32(s, MTSPR | RS(tcg_target_call_iarg_regs[1]) | CTR); |
| tcg_out32(s, BCCTR | BO_ALWAYS); |
| |
| /* Epilogue */ |
| tcg_code_gen_epilogue = tcg_splitwx_to_rx(s->code_ptr); |
| |
| tcg_out_ld(s, TCG_TYPE_PTR, TCG_REG_R0, TCG_REG_R1, FRAME_SIZE+LR_OFFSET); |
| for (i = 0; i < ARRAY_SIZE(tcg_target_callee_save_regs); ++i) { |
| tcg_out_ld(s, TCG_TYPE_REG, tcg_target_callee_save_regs[i], |
| TCG_REG_R1, REG_SAVE_BOT + i * SZR); |
| } |
| tcg_out32(s, MTSPR | RS(TCG_REG_R0) | LR); |
| tcg_out32(s, ADDI | TAI(TCG_REG_R1, TCG_REG_R1, FRAME_SIZE)); |
| tcg_out32(s, BCLR | BO_ALWAYS); |
| } |
| |
| static void tcg_out_tb_start(TCGContext *s) |
| { |
| /* Load TCG_REG_TB. */ |
| if (USE_REG_TB) { |
| if (have_isa_3_00) { |
| /* lnia REG_TB */ |
| tcg_out_addpcis(s, TCG_REG_TB, 0); |
| } else { |
| /* bcl 20,31,$+4 (preferred form for getting nia) */ |
| tcg_out32(s, BC | BO_ALWAYS | BI(7, CR_SO) | 0x4 | LK); |
| tcg_out32(s, MFSPR | RT(TCG_REG_TB) | LR); |
| } |
| } |
| } |
| |
| static void tcg_out_exit_tb(TCGContext *s, uintptr_t arg) |
| { |
| tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_R3, arg); |
| tcg_out_b(s, 0, tcg_code_gen_epilogue); |
| } |
| |
| static void tcg_out_goto_tb(TCGContext *s, int which) |
| { |
| uintptr_t ptr = get_jmp_target_addr(s, which); |
| int16_t lo; |
| |
| /* Direct branch will be patched by tb_target_set_jmp_target. */ |
| set_jmp_insn_offset(s, which); |
| tcg_out32(s, NOP); |
| |
| /* When branch is out of range, fall through to indirect. */ |
| if (USE_REG_TB) { |
| ptrdiff_t offset = ppc_tbrel_diff(s, (void *)ptr); |
| tcg_out_mem_long(s, LD, LDX, TCG_REG_TMP1, TCG_REG_TB, offset); |
| } else if (have_isa_3_10) { |
| ptrdiff_t offset = tcg_pcrel_diff_for_prefix(s, (void *)ptr); |
| tcg_out_8ls_d(s, PLD, TCG_REG_TMP1, 0, offset, 1); |
| } else if (have_isa_3_00) { |
| ptrdiff_t offset = tcg_pcrel_diff(s, (void *)ptr) - 4; |
| lo = offset; |
| tcg_out_addpcis(s, TCG_REG_TMP1, offset - lo); |
| tcg_out_ld(s, TCG_TYPE_PTR, TCG_REG_TMP1, TCG_REG_TMP1, lo); |
| } else { |
| lo = ptr; |
| tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_TMP1, ptr - lo); |
| tcg_out_ld(s, TCG_TYPE_PTR, TCG_REG_TMP1, TCG_REG_TMP1, lo); |
| } |
| |
| tcg_out32(s, MTSPR | RS(TCG_REG_TMP1) | CTR); |
| tcg_out32(s, BCCTR | BO_ALWAYS); |
| set_jmp_reset_offset(s, which); |
| } |
| |
| void tb_target_set_jmp_target(const TranslationBlock *tb, int n, |
| uintptr_t jmp_rx, uintptr_t jmp_rw) |
| { |
| uintptr_t addr = tb->jmp_target_addr[n]; |
| intptr_t diff = addr - jmp_rx; |
| tcg_insn_unit insn; |
| |
| if (in_range_b(diff)) { |
| insn = B | (diff & 0x3fffffc); |
| } else { |
| insn = NOP; |
| } |
| |
| qatomic_set((uint32_t *)jmp_rw, insn); |
| flush_idcache_range(jmp_rx, jmp_rw, 4); |
| } |
| |
| static void tcg_out_op(TCGContext *s, TCGOpcode opc, |
| const TCGArg args[TCG_MAX_OP_ARGS], |
| const int const_args[TCG_MAX_OP_ARGS]) |
| { |
| TCGArg a0, a1, a2; |
| |
| switch (opc) { |
| case INDEX_op_goto_ptr: |
| tcg_out32(s, MTSPR | RS(args[0]) | CTR); |
| tcg_out32(s, ADDI | TAI(TCG_REG_R3, 0, 0)); |
| tcg_out32(s, BCCTR | BO_ALWAYS); |
| break; |
| case INDEX_op_br: |
| { |
| TCGLabel *l = arg_label(args[0]); |
| uint32_t insn = B; |
| |
| if (l->has_value) { |
| insn |= reloc_pc24_val(tcg_splitwx_to_rx(s->code_ptr), |
| l->u.value_ptr); |
| } else { |
| tcg_out_reloc(s, s->code_ptr, R_PPC_REL24, l, 0); |
| } |
| tcg_out32(s, insn); |
| } |
| break; |
| case INDEX_op_ld8u_i32: |
| case INDEX_op_ld8u_i64: |
| tcg_out_mem_long(s, LBZ, LBZX, args[0], args[1], args[2]); |
| break; |
| case INDEX_op_ld8s_i32: |
| case INDEX_op_ld8s_i64: |
| tcg_out_mem_long(s, LBZ, LBZX, args[0], args[1], args[2]); |
| tcg_out_ext8s(s, TCG_TYPE_REG, args[0], args[0]); |
| break; |
| case INDEX_op_ld16u_i32: |
| case INDEX_op_ld16u_i64: |
| tcg_out_mem_long(s, LHZ, LHZX, args[0], args[1], args[2]); |
| break; |
| case INDEX_op_ld16s_i32: |
| case INDEX_op_ld16s_i64: |
| tcg_out_mem_long(s, LHA, LHAX, args[0], args[1], args[2]); |
| break; |
| case INDEX_op_ld_i32: |
| case INDEX_op_ld32u_i64: |
| tcg_out_mem_long(s, LWZ, LWZX, args[0], args[1], args[2]); |
| break; |
| case INDEX_op_ld32s_i64: |
| tcg_out_mem_long(s, LWA, LWAX, args[0], args[1], args[2]); |
| break; |
| case INDEX_op_ld_i64: |
| tcg_out_mem_long(s, LD, LDX, args[0], args[1], args[2]); |
| break; |
| case INDEX_op_st8_i32: |
| case INDEX_op_st8_i64: |
| tcg_out_mem_long(s, STB, STBX, args[0], args[1], args[2]); |
| break; |
| case INDEX_op_st16_i32: |
| case INDEX_op_st16_i64: |
| tcg_out_mem_long(s, STH, STHX, args[0], args[1], args[2]); |
| break; |
| case INDEX_op_st_i32: |
| case INDEX_op_st32_i64: |
| tcg_out_mem_long(s, STW, STWX, args[0], args[1], args[2]); |
| break; |
| case INDEX_op_st_i64: |
| tcg_out_mem_long(s, STD, STDX, args[0], args[1], args[2]); |
| break; |
| |
| case INDEX_op_add_i32: |
| a0 = args[0], a1 = args[1], a2 = args[2]; |
| if (const_args[2]) { |
| do_addi_32: |
| tcg_out_mem_long(s, ADDI, ADD, a0, a1, (int32_t)a2); |
| } else { |
| tcg_out32(s, ADD | TAB(a0, a1, a2)); |
| } |
| break; |
| case INDEX_op_sub_i32: |
| a0 = args[0], a1 = args[1], a2 = args[2]; |
| if (const_args[1]) { |
| if (const_args[2]) { |
| tcg_out_movi(s, TCG_TYPE_I32, a0, a1 - a2); |
| } else { |
| tcg_out32(s, SUBFIC | TAI(a0, a2, a1)); |
| } |
| } else if (const_args[2]) { |
| a2 = -a2; |
| goto do_addi_32; |
| } else { |
| tcg_out32(s, SUBF | TAB(a0, a2, a1)); |
| } |
| break; |
| |
| case INDEX_op_and_i32: |
| a0 = args[0], a1 = args[1], a2 = args[2]; |
| if (const_args[2]) { |
| tcg_out_andi32(s, a0, a1, a2); |
| } else { |
| tcg_out32(s, AND | SAB(a1, a0, a2)); |
| } |
| break; |
| case INDEX_op_and_i64: |
| a0 = args[0], a1 = args[1], a2 = args[2]; |
| if (const_args[2]) { |
| tcg_out_andi64(s, a0, a1, a2); |
| } else { |
| tcg_out32(s, AND | SAB(a1, a0, a2)); |
| } |
| break; |
| case INDEX_op_or_i64: |
| case INDEX_op_or_i32: |
| a0 = args[0], a1 = args[1], a2 = args[2]; |
| if (const_args[2]) { |
| tcg_out_ori32(s, a0, a1, a2); |
| } else { |
| tcg_out32(s, OR | SAB(a1, a0, a2)); |
| } |
| break; |
| case INDEX_op_xor_i64: |
| case INDEX_op_xor_i32: |
| a0 = args[0], a1 = args[1], a2 = args[2]; |
| if (const_args[2]) { |
| tcg_out_xori32(s, a0, a1, a2); |
| } else { |
| tcg_out32(s, XOR | SAB(a1, a0, a2)); |
| } |
| break; |
| case INDEX_op_andc_i32: |
| a0 = args[0], a1 = args[1], a2 = args[2]; |
| if (const_args[2]) { |
| tcg_out_andi32(s, a0, a1, ~a2); |
| } else { |
| tcg_out32(s, ANDC | SAB(a1, a0, a2)); |
| } |
| break; |
| case INDEX_op_andc_i64: |
| a0 = args[0], a1 = args[1], a2 = args[2]; |
| if (const_args[2]) { |
| tcg_out_andi64(s, a0, a1, ~a2); |
| } else { |
| tcg_out32(s, ANDC | SAB(a1, a0, a2)); |
| } |
| break; |
| case INDEX_op_orc_i32: |
| if (const_args[2]) { |
| tcg_out_ori32(s, args[0], args[1], ~args[2]); |
| break; |
| } |
| /* FALLTHRU */ |
| case INDEX_op_orc_i64: |
| tcg_out32(s, ORC | SAB(args[1], args[0], args[2])); |
| break; |
| case INDEX_op_eqv_i32: |
| if (const_args[2]) { |
| tcg_out_xori32(s, args[0], args[1], ~args[2]); |
| break; |
| } |
| /* FALLTHRU */ |
| case INDEX_op_eqv_i64: |
| tcg_out32(s, EQV | SAB(args[1], args[0], args[2])); |
| break; |
| case INDEX_op_nand_i32: |
| case INDEX_op_nand_i64: |
| tcg_out32(s, NAND | SAB(args[1], args[0], args[2])); |
| break; |
| case INDEX_op_nor_i32: |
| case INDEX_op_nor_i64: |
| tcg_out32(s, NOR | SAB(args[1], args[0], args[2])); |
| break; |
| |
| case INDEX_op_clz_i32: |
| tcg_out_cntxz(s, TCG_TYPE_I32, CNTLZW, args[0], args[1], |
| args[2], const_args[2]); |
| break; |
| case INDEX_op_ctz_i32: |
| tcg_out_cntxz(s, TCG_TYPE_I32, CNTTZW, args[0], args[1], |
| args[2], const_args[2]); |
| break; |
| case INDEX_op_ctpop_i32: |
| tcg_out32(s, CNTPOPW | SAB(args[1], args[0], 0)); |
| break; |
| |
| case INDEX_op_clz_i64: |
| tcg_out_cntxz(s, TCG_TYPE_I64, CNTLZD, args[0], args[1], |
| args[2], const_args[2]); |
| break; |
| case INDEX_op_ctz_i64: |
| tcg_out_cntxz(s, TCG_TYPE_I64, CNTTZD, args[0], args[1], |
| args[2], const_args[2]); |
| break; |
| case INDEX_op_ctpop_i64: |
| tcg_out32(s, CNTPOPD | SAB(args[1], args[0], 0)); |
| break; |
| |
| case INDEX_op_mul_i32: |
| a0 = args[0], a1 = args[1], a2 = args[2]; |
| if (const_args[2]) { |
| tcg_out32(s, MULLI | TAI(a0, a1, a2)); |
| } else { |
| tcg_out32(s, MULLW | TAB(a0, a1, a2)); |
| } |
| break; |
| |
| case INDEX_op_div_i32: |
| tcg_out32(s, DIVW | TAB(args[0], args[1], args[2])); |
| break; |
| |
| case INDEX_op_divu_i32: |
| tcg_out32(s, DIVWU | TAB(args[0], args[1], args[2])); |
| break; |
| |
| case INDEX_op_rem_i32: |
| tcg_out32(s, MODSW | TAB(args[0], args[1], args[2])); |
| break; |
| |
| case INDEX_op_remu_i32: |
| tcg_out32(s, MODUW | TAB(args[0], args[1], args[2])); |
| break; |
| |
| case INDEX_op_shl_i32: |
| if (const_args[2]) { |
| /* Limit immediate shift count lest we create an illegal insn. */ |
| tcg_out_shli32(s, args[0], args[1], args[2] & 31); |
| } else { |
| tcg_out32(s, SLW | SAB(args[1], args[0], args[2])); |
| } |
| break; |
| case INDEX_op_shr_i32: |
| if (const_args[2]) { |
| /* Limit immediate shift count lest we create an illegal insn. */ |
| tcg_out_shri32(s, args[0], args[1], args[2] & 31); |
| } else { |
| tcg_out32(s, SRW | SAB(args[1], args[0], args[2])); |
| } |
| break; |
| case INDEX_op_sar_i32: |
| if (const_args[2]) { |
| tcg_out_sari32(s, args[0], args[1], args[2]); |
| } else { |
| tcg_out32(s, SRAW | SAB(args[1], args[0], args[2])); |
| } |
| break; |
| case INDEX_op_rotl_i32: |
| if (const_args[2]) { |
| tcg_out_rlw(s, RLWINM, args[0], args[1], args[2], 0, 31); |
| } else { |
| tcg_out32(s, RLWNM | SAB(args[1], args[0], args[2]) |
| | MB(0) | ME(31)); |
| } |
| break; |
| case INDEX_op_rotr_i32: |
| if (const_args[2]) { |
| tcg_out_rlw(s, RLWINM, args[0], args[1], 32 - args[2], 0, 31); |
| } else { |
| tcg_out32(s, SUBFIC | TAI(TCG_REG_R0, args[2], 32)); |
| tcg_out32(s, RLWNM | SAB(args[1], args[0], TCG_REG_R0) |
| | MB(0) | ME(31)); |
| } |
| break; |
| |
| case INDEX_op_brcond_i32: |
| tcg_out_brcond(s, args[2], args[0], args[1], const_args[1], |
| arg_label(args[3]), TCG_TYPE_I32); |
| break; |
| case INDEX_op_brcond_i64: |
| tcg_out_brcond(s, args[2], args[0], args[1], const_args[1], |
| arg_label(args[3]), TCG_TYPE_I64); |
| break; |
| case INDEX_op_brcond2_i32: |
| tcg_out_brcond2(s, args, const_args); |
| break; |
| |
| case INDEX_op_neg_i32: |
| case INDEX_op_neg_i64: |
| tcg_out32(s, NEG | RT(args[0]) | RA(args[1])); |
| break; |
| |
| case INDEX_op_not_i32: |
| case INDEX_op_not_i64: |
| tcg_out32(s, NOR | SAB(args[1], args[0], args[1])); |
| break; |
| |
| case INDEX_op_add_i64: |
| a0 = args[0], a1 = args[1], a2 = args[2]; |
| if (const_args[2]) { |
| do_addi_64: |
| tcg_out_mem_long(s, ADDI, ADD, a0, a1, a2); |
| } else { |
| tcg_out32(s, ADD | TAB(a0, a1, a2)); |
| } |
| break; |
| case INDEX_op_sub_i64: |
| a0 = args[0], a1 = args[1], a2 = args[2]; |
| if (const_args[1]) { |
| if (const_args[2]) { |
| tcg_out_movi(s, TCG_TYPE_I64, a0, a1 - a2); |
| } else { |
| tcg_out32(s, SUBFIC | TAI(a0, a2, a1)); |
| } |
| } else if (const_args[2]) { |
| a2 = -a2; |
| goto do_addi_64; |
| } else { |
| tcg_out32(s, SUBF | TAB(a0, a2, a1)); |
| } |
| break; |
| |
| case INDEX_op_shl_i64: |
| if (const_args[2]) { |
| /* Limit immediate shift count lest we create an illegal insn. */ |
| tcg_out_shli64(s, args[0], args[1], args[2] & 63); |
| } else { |
| tcg_out32(s, SLD | SAB(args[1], args[0], args[2])); |
| } |
| break; |
| case INDEX_op_shr_i64: |
| if (const_args[2]) { |
| /* Limit immediate shift count lest we create an illegal insn. */ |
| tcg_out_shri64(s, args[0], args[1], args[2] & 63); |
| } else { |
| tcg_out32(s, SRD | SAB(args[1], args[0], args[2])); |
| } |
| break; |
| case INDEX_op_sar_i64: |
| if (const_args[2]) { |
| tcg_out_sari64(s, args[0], args[1], args[2]); |
| } else { |
| tcg_out32(s, SRAD | SAB(args[1], args[0], args[2])); |
| } |
| break; |
| case INDEX_op_rotl_i64: |
| if (const_args[2]) { |
| tcg_out_rld(s, RLDICL, args[0], args[1], args[2], 0); |
| } else { |
| tcg_out32(s, RLDCL | SAB(args[1], args[0], args[2]) | MB64(0)); |
| } |
| break; |
| case INDEX_op_rotr_i64: |
| if (const_args[2]) { |
| tcg_out_rld(s, RLDICL, args[0], args[1], 64 - args[2], 0); |
| } else { |
| tcg_out32(s, SUBFIC | TAI(TCG_REG_R0, args[2], 64)); |
| tcg_out32(s, RLDCL | SAB(args[1], args[0], TCG_REG_R0) | MB64(0)); |
| } |
| break; |
| |
| case INDEX_op_mul_i64: |
| a0 = args[0], a1 = args[1], a2 = args[2]; |
| if (const_args[2]) { |
| tcg_out32(s, MULLI | TAI(a0, a1, a2)); |
| } else { |
| tcg_out32(s, MULLD | TAB(a0, a1, a2)); |
| } |
| break; |
| case INDEX_op_div_i64: |
| tcg_out32(s, DIVD | TAB(args[0], args[1], args[2])); |
| break; |
| case INDEX_op_divu_i64: |
| tcg_out32(s, DIVDU | TAB(args[0], args[1], args[2])); |
| break; |
| case INDEX_op_rem_i64: |
| tcg_out32(s, MODSD | TAB(args[0], args[1], args[2])); |
| break; |
| case INDEX_op_remu_i64: |
| tcg_out32(s, MODUD | TAB(args[0], args[1], args[2])); |
| break; |
| |
| case INDEX_op_qemu_ld_a64_i32: |
| if (TCG_TARGET_REG_BITS == 32) { |
| tcg_out_qemu_ld(s, args[0], -1, args[1], args[2], |
| args[3], TCG_TYPE_I32); |
| break; |
| } |
| /* fall through */ |
| case INDEX_op_qemu_ld_a32_i32: |
| tcg_out_qemu_ld(s, args[0], -1, args[1], -1, args[2], TCG_TYPE_I32); |
| break; |
| case INDEX_op_qemu_ld_a32_i64: |
| if (TCG_TARGET_REG_BITS == 64) { |
| tcg_out_qemu_ld(s, args[0], -1, args[1], -1, |
| args[2], TCG_TYPE_I64); |
| } else { |
| tcg_out_qemu_ld(s, args[0], args[1], args[2], -1, |
| args[3], TCG_TYPE_I64); |
| } |
| break; |
| case INDEX_op_qemu_ld_a64_i64: |
| if (TCG_TARGET_REG_BITS == 64) { |
| tcg_out_qemu_ld(s, args[0], -1, args[1], -1, |
| args[2], TCG_TYPE_I64); |
| } else { |
| tcg_out_qemu_ld(s, args[0], args[1], args[2], args[3], |
| args[4], TCG_TYPE_I64); |
| } |
| break; |
| case INDEX_op_qemu_ld_a32_i128: |
| case INDEX_op_qemu_ld_a64_i128: |
| tcg_debug_assert(TCG_TARGET_REG_BITS == 64); |
| tcg_out_qemu_ldst_i128(s, args[0], args[1], args[2], args[3], true); |
| break; |
| |
| case INDEX_op_qemu_st_a64_i32: |
| if (TCG_TARGET_REG_BITS == 32) { |
| tcg_out_qemu_st(s, args[0], -1, args[1], args[2], |
| args[3], TCG_TYPE_I32); |
| break; |
| } |
| /* fall through */ |
| case INDEX_op_qemu_st_a32_i32: |
| tcg_out_qemu_st(s, args[0], -1, args[1], -1, args[2], TCG_TYPE_I32); |
| break; |
| case INDEX_op_qemu_st_a32_i64: |
| if (TCG_TARGET_REG_BITS == 64) { |
| tcg_out_qemu_st(s, args[0], -1, args[1], -1, |
| args[2], TCG_TYPE_I64); |
| } else { |
| tcg_out_qemu_st(s, args[0], args[1], args[2], -1, |
| args[3], TCG_TYPE_I64); |
| } |
| break; |
| case INDEX_op_qemu_st_a64_i64: |
| if (TCG_TARGET_REG_BITS == 64) { |
| tcg_out_qemu_st(s, args[0], -1, args[1], -1, |
| args[2], TCG_TYPE_I64); |
| } else { |
| tcg_out_qemu_st(s, args[0], args[1], args[2], args[3], |
| args[4], TCG_TYPE_I64); |
| } |
| break; |
| case INDEX_op_qemu_st_a32_i128: |
| case INDEX_op_qemu_st_a64_i128: |
| tcg_debug_assert(TCG_TARGET_REG_BITS == 64); |
| tcg_out_qemu_ldst_i128(s, args[0], args[1], args[2], args[3], false); |
| break; |
| |
| case INDEX_op_setcond_i32: |
| tcg_out_setcond(s, TCG_TYPE_I32, args[3], args[0], args[1], args[2], |
| const_args[2], false); |
| break; |
| case INDEX_op_setcond_i64: |
| tcg_out_setcond(s, TCG_TYPE_I64, args[3], args[0], args[1], args[2], |
| const_args[2], false); |
| break; |
| case INDEX_op_negsetcond_i32: |
| tcg_out_setcond(s, TCG_TYPE_I32, args[3], args[0], args[1], args[2], |
| const_args[2], true); |
| break; |
| case INDEX_op_negsetcond_i64: |
| tcg_out_setcond(s, TCG_TYPE_I64, args[3], args[0], args[1], args[2], |
| const_args[2], true); |
| break; |
| case INDEX_op_setcond2_i32: |
| tcg_out_setcond2(s, args, const_args); |
| break; |
| |
| case INDEX_op_bswap16_i32: |
| case INDEX_op_bswap16_i64: |
| tcg_out_bswap16(s, args[0], args[1], args[2]); |
| break; |
| case INDEX_op_bswap32_i32: |
| tcg_out_bswap32(s, args[0], args[1], 0); |
| break; |
| case INDEX_op_bswap32_i64: |
| tcg_out_bswap32(s, args[0], args[1], args[2]); |
| break; |
| case INDEX_op_bswap64_i64: |
| tcg_out_bswap64(s, args[0], args[1]); |
| break; |
| |
| case INDEX_op_deposit_i32: |
| if (const_args[2]) { |
| uint32_t mask = ((2u << (args[4] - 1)) - 1) << args[3]; |
| tcg_out_andi32(s, args[0], args[0], ~mask); |
| } else { |
| tcg_out_rlw(s, RLWIMI, args[0], args[2], args[3], |
| 32 - args[3] - args[4], 31 - args[3]); |
| } |
| break; |
| case INDEX_op_deposit_i64: |
| if (const_args[2]) { |
| uint64_t mask = ((2ull << (args[4] - 1)) - 1) << args[3]; |
| tcg_out_andi64(s, args[0], args[0], ~mask); |
| } else { |
| tcg_out_rld(s, RLDIMI, args[0], args[2], args[3], |
| 64 - args[3] - args[4]); |
| } |
| break; |
| |
| case INDEX_op_extract_i32: |
| tcg_out_rlw(s, RLWINM, args[0], args[1], |
| 32 - args[2], 32 - args[3], 31); |
| break; |
| case INDEX_op_extract_i64: |
| tcg_out_rld(s, RLDICL, args[0], args[1], 64 - args[2], 64 - args[3]); |
| break; |
| |
| case INDEX_op_movcond_i32: |
| tcg_out_movcond(s, TCG_TYPE_I32, args[5], args[0], args[1], args[2], |
| args[3], args[4], const_args[2]); |
| break; |
| case INDEX_op_movcond_i64: |
| tcg_out_movcond(s, TCG_TYPE_I64, args[5], args[0], args[1], args[2], |
| args[3], args[4], const_args[2]); |
| break; |
| |
| #if TCG_TARGET_REG_BITS == 64 |
| case INDEX_op_add2_i64: |
| #else |
| case INDEX_op_add2_i32: |
| #endif |
| /* Note that the CA bit is defined based on the word size of the |
| environment. So in 64-bit mode it's always carry-out of bit 63. |
| The fallback code using deposit works just as well for 32-bit. */ |
| a0 = args[0], a1 = args[1]; |
| if (a0 == args[3] || (!const_args[5] && a0 == args[5])) { |
| a0 = TCG_REG_R0; |
| } |
| if (const_args[4]) { |
| tcg_out32(s, ADDIC | TAI(a0, args[2], args[4])); |
| } else { |
| tcg_out32(s, ADDC | TAB(a0, args[2], args[4])); |
| } |
| if (const_args[5]) { |
| tcg_out32(s, (args[5] ? ADDME : ADDZE) | RT(a1) | RA(args[3])); |
| } else { |
| tcg_out32(s, ADDE | TAB(a1, args[3], args[5])); |
| } |
| if (a0 != args[0]) { |
| tcg_out_mov(s, TCG_TYPE_REG, args[0], a0); |
| } |
| break; |
| |
| #if TCG_TARGET_REG_BITS == 64 |
| case INDEX_op_sub2_i64: |
| #else |
| case INDEX_op_sub2_i32: |
| #endif |
| a0 = args[0], a1 = args[1]; |
| if (a0 == args[5] || (!const_args[3] && a0 == args[3])) { |
| a0 = TCG_REG_R0; |
| } |
| if (const_args[2]) { |
| tcg_out32(s, SUBFIC | TAI(a0, args[4], args[2])); |
| } else { |
| tcg_out32(s, SUBFC | TAB(a0, args[4], args[2])); |
| } |
| if (const_args[3]) { |
| tcg_out32(s, (args[3] ? SUBFME : SUBFZE) | RT(a1) | RA(args[5])); |
| } else { |
| tcg_out32(s, SUBFE | TAB(a1, args[5], args[3])); |
| } |
| if (a0 != args[0]) { |
| tcg_out_mov(s, TCG_TYPE_REG, args[0], a0); |
| } |
| break; |
| |
| case INDEX_op_muluh_i32: |
| tcg_out32(s, MULHWU | TAB(args[0], args[1], args[2])); |
| break; |
| case INDEX_op_mulsh_i32: |
| tcg_out32(s, MULHW | TAB(args[0], args[1], args[2])); |
| break; |
| case INDEX_op_muluh_i64: |
| tcg_out32(s, MULHDU | TAB(args[0], args[1], args[2])); |
| break; |
| case INDEX_op_mulsh_i64: |
| tcg_out32(s, MULHD | TAB(args[0], args[1], args[2])); |
| break; |
| |
| case INDEX_op_mb: |
| tcg_out_mb(s, args[0]); |
| break; |
| |
| case INDEX_op_mov_i32: /* Always emitted via tcg_out_mov. */ |
| case INDEX_op_mov_i64: |
| case INDEX_op_call: /* Always emitted via tcg_out_call. */ |
| case INDEX_op_exit_tb: /* Always emitted via tcg_out_exit_tb. */ |
| case INDEX_op_goto_tb: /* Always emitted via tcg_out_goto_tb. */ |
| case INDEX_op_ext8s_i32: /* Always emitted via tcg_reg_alloc_op. */ |
| case INDEX_op_ext8s_i64: |
| case INDEX_op_ext8u_i32: |
| case INDEX_op_ext8u_i64: |
| case INDEX_op_ext16s_i32: |
| case INDEX_op_ext16s_i64: |
| case INDEX_op_ext16u_i32: |
| case INDEX_op_ext16u_i64: |
| case INDEX_op_ext32s_i64: |
| case INDEX_op_ext32u_i64: |
| case INDEX_op_ext_i32_i64: |
| case INDEX_op_extu_i32_i64: |
| case INDEX_op_extrl_i64_i32: |
| default: |
| g_assert_not_reached(); |
| } |
| } |
| |
| int tcg_can_emit_vec_op(TCGOpcode opc, TCGType type, unsigned vece) |
| { |
| switch (opc) { |
| case INDEX_op_and_vec: |
| case INDEX_op_or_vec: |
| case INDEX_op_xor_vec: |
| case INDEX_op_andc_vec: |
| case INDEX_op_not_vec: |
| case INDEX_op_nor_vec: |
| case INDEX_op_eqv_vec: |
| case INDEX_op_nand_vec: |
| return 1; |
| case INDEX_op_orc_vec: |
| return have_isa_2_07; |
| case INDEX_op_add_vec: |
| case INDEX_op_sub_vec: |
| case INDEX_op_smax_vec: |
| case INDEX_op_smin_vec: |
| case INDEX_op_umax_vec: |
| case INDEX_op_umin_vec: |
| case INDEX_op_shlv_vec: |
| case INDEX_op_shrv_vec: |
| case INDEX_op_sarv_vec: |
| case INDEX_op_rotlv_vec: |
| return vece <= MO_32 || have_isa_2_07; |
| case INDEX_op_ssadd_vec: |
| case INDEX_op_sssub_vec: |
| case INDEX_op_usadd_vec: |
| case INDEX_op_ussub_vec: |
| return vece <= MO_32; |
| case INDEX_op_cmp_vec: |
| case INDEX_op_shli_vec: |
| case INDEX_op_shri_vec: |
| case INDEX_op_sari_vec: |
| case INDEX_op_rotli_vec: |
| return vece <= MO_32 || have_isa_2_07 ? -1 : 0; |
| case INDEX_op_neg_vec: |
| return vece >= MO_32 && have_isa_3_00; |
| case INDEX_op_mul_vec: |
| switch (vece) { |
| case MO_8: |
| case MO_16: |
| return -1; |
| case MO_32: |
| return have_isa_2_07 ? 1 : -1; |
| case MO_64: |
| return have_isa_3_10; |
| } |
| return 0; |
| case INDEX_op_bitsel_vec: |
| return have_vsx; |
| case INDEX_op_rotrv_vec: |
| return -1; |
| default: |
| return 0; |
| } |
| } |
| |
| static bool tcg_out_dup_vec(TCGContext *s, TCGType type, unsigned vece, |
| TCGReg dst, TCGReg src) |
| { |
| tcg_debug_assert(dst >= TCG_REG_V0); |
| |
| /* Splat from integer reg allowed via constraints for v3.00. */ |
| if (src < TCG_REG_V0) { |
| tcg_debug_assert(have_isa_3_00); |
| switch (vece) { |
| case MO_64: |
| tcg_out32(s, MTVSRDD | VRT(dst) | RA(src) | RB(src)); |
| return true; |
| case MO_32: |
| tcg_out32(s, MTVSRWS | VRT(dst) | RA(src)); |
| return true; |
| default: |
| /* Fail, so that we fall back on either dupm or mov+dup. */ |
| return false; |
| } |
| } |
| |
| /* |
| * Recall we use (or emulate) VSX integer loads, so the integer is |
| * right justified within the left (zero-index) double-word. |
| */ |
| switch (vece) { |
| case MO_8: |
| tcg_out32(s, VSPLTB | VRT(dst) | VRB(src) | (7 << 16)); |
| break; |
| case MO_16: |
| tcg_out32(s, VSPLTH | VRT(dst) | VRB(src) | (3 << 16)); |
| break; |
| case MO_32: |
| tcg_out32(s, VSPLTW | VRT(dst) | VRB(src) | (1 << 16)); |
| break; |
| case MO_64: |
| if (have_vsx) { |
| tcg_out32(s, XXPERMDI | VRT(dst) | VRA(src) | VRB(src)); |
| break; |
| } |
| tcg_out_vsldoi(s, TCG_VEC_TMP1, src, src, 8); |
| tcg_out_vsldoi(s, dst, TCG_VEC_TMP1, src, 8); |
| break; |
| default: |
| g_assert_not_reached(); |
| } |
| return true; |
| } |
| |
| static bool tcg_out_dupm_vec(TCGContext *s, TCGType type, unsigned vece, |
| TCGReg out, TCGReg base, intptr_t offset) |
| { |
| int elt; |
| |
| tcg_debug_assert(out >= TCG_REG_V0); |
| switch (vece) { |
| case MO_8: |
| if (have_isa_3_00) { |
| tcg_out_mem_long(s, LXV, LVX, out, base, offset & -16); |
| } else { |
| tcg_out_mem_long(s, 0, LVEBX, out, base, offset); |
| } |
| elt = extract32(offset, 0, 4); |
| #if !HOST_BIG_ENDIAN |
| elt ^= 15; |
| #endif |
| tcg_out32(s, VSPLTB | VRT(out) | VRB(out) | (elt << 16)); |
| break; |
| case MO_16: |
| tcg_debug_assert((offset & 1) == 0); |
| if (have_isa_3_00) { |
| tcg_out_mem_long(s, LXV | 8, LVX, out, base, offset & -16); |
| } else { |
| tcg_out_mem_long(s, 0, LVEHX, out, base, offset); |
| } |
| elt = extract32(offset, 1, 3); |
| #if !HOST_BIG_ENDIAN |
| elt ^= 7; |
| #endif |
| tcg_out32(s, VSPLTH | VRT(out) | VRB(out) | (elt << 16)); |
| break; |
| case MO_32: |
| if (have_isa_3_00) { |
| tcg_out_mem_long(s, 0, LXVWSX, out, base, offset); |
| break; |
| } |
| tcg_debug_assert((offset & 3) == 0); |
| tcg_out_mem_long(s, 0, LVEWX, out, base, offset); |
| elt = extract32(offset, 2, 2); |
| #if !HOST_BIG_ENDIAN |
| elt ^= 3; |
| #endif |
| tcg_out32(s, VSPLTW | VRT(out) | VRB(out) | (elt << 16)); |
| break; |
| case MO_64: |
| if (have_vsx) { |
| tcg_out_mem_long(s, 0, LXVDSX, out, base, offset); |
| break; |
| } |
| tcg_debug_assert((offset & 7) == 0); |
| tcg_out_mem_long(s, 0, LVX, out, base, offset & -16); |
| tcg_out_vsldoi(s, TCG_VEC_TMP1, out, out, 8); |
| elt = extract32(offset, 3, 1); |
| #if !HOST_BIG_ENDIAN |
| elt = !elt; |
| #endif |
| if (elt) { |
| tcg_out_vsldoi(s, out, out, TCG_VEC_TMP1, 8); |
| } else { |
| tcg_out_vsldoi(s, out, TCG_VEC_TMP1, out, 8); |
| } |
| break; |
| default: |
| g_assert_not_reached(); |
| } |
| return true; |
| } |
| |
| static void tcg_out_vec_op(TCGContext *s, TCGOpcode opc, |
| unsigned vecl, unsigned vece, |
| const TCGArg args[TCG_MAX_OP_ARGS], |
| const int const_args[TCG_MAX_OP_ARGS]) |
| { |
| static const uint32_t |
| add_op[4] = { VADDUBM, VADDUHM, VADDUWM, VADDUDM }, |
| sub_op[4] = { VSUBUBM, VSUBUHM, VSUBUWM, VSUBUDM }, |
| mul_op[4] = { 0, 0, VMULUWM, VMULLD }, |
| neg_op[4] = { 0, 0, VNEGW, VNEGD }, |
| eq_op[4] = { VCMPEQUB, VCMPEQUH, VCMPEQUW, VCMPEQUD }, |
| ne_op[4] = { VCMPNEB, VCMPNEH, VCMPNEW, 0 }, |
| gts_op[4] = { VCMPGTSB, VCMPGTSH, VCMPGTSW, VCMPGTSD }, |
| gtu_op[4] = { VCMPGTUB, VCMPGTUH, VCMPGTUW, VCMPGTUD }, |
| ssadd_op[4] = { VADDSBS, VADDSHS, VADDSWS, 0 }, |
| usadd_op[4] = { VADDUBS, VADDUHS, VADDUWS, 0 }, |
| sssub_op[4] = { VSUBSBS, VSUBSHS, VSUBSWS, 0 }, |
| ussub_op[4] = { VSUBUBS, VSUBUHS, VSUBUWS, 0 }, |
| umin_op[4] = { VMINUB, VMINUH, VMINUW, VMINUD }, |
| smin_op[4] = { VMINSB, VMINSH, VMINSW, VMINSD }, |
| umax_op[4] = { VMAXUB, VMAXUH, VMAXUW, VMAXUD }, |
| smax_op[4] = { VMAXSB, VMAXSH, VMAXSW, VMAXSD }, |
| shlv_op[4] = { VSLB, VSLH, VSLW, VSLD }, |
| shrv_op[4] = { VSRB, VSRH, VSRW, VSRD }, |
| sarv_op[4] = { VSRAB, VSRAH, VSRAW, VSRAD }, |
| mrgh_op[4] = { VMRGHB, VMRGHH, VMRGHW, 0 }, |
| mrgl_op[4] = { VMRGLB, VMRGLH, VMRGLW, 0 }, |
| muleu_op[4] = { VMULEUB, VMULEUH, VMULEUW, 0 }, |
| mulou_op[4] = { VMULOUB, VMULOUH, VMULOUW, 0 }, |
| pkum_op[4] = { VPKUHUM, VPKUWUM, 0, 0 }, |
| rotl_op[4] = { VRLB, VRLH, VRLW, VRLD }; |
| |
| TCGType type = vecl + TCG_TYPE_V64; |
| TCGArg a0 = args[0], a1 = args[1], a2 = args[2]; |
| uint32_t insn; |
| |
| switch (opc) { |
| case INDEX_op_ld_vec: |
| tcg_out_ld(s, type, a0, a1, a2); |
| return; |
| case INDEX_op_st_vec: |
| tcg_out_st(s, type, a0, a1, a2); |
| return; |
| case INDEX_op_dupm_vec: |
| tcg_out_dupm_vec(s, type, vece, a0, a1, a2); |
| return; |
| |
| case INDEX_op_add_vec: |
| insn = add_op[vece]; |
| break; |
| case INDEX_op_sub_vec: |
| insn = sub_op[vece]; |
| break; |
| case INDEX_op_neg_vec: |
| insn = neg_op[vece]; |
| a2 = a1; |
| a1 = 0; |
| break; |
| case INDEX_op_mul_vec: |
| insn = mul_op[vece]; |
| break; |
| case INDEX_op_ssadd_vec: |
| insn = ssadd_op[vece]; |
| break; |
| case INDEX_op_sssub_vec: |
| insn = sssub_op[vece]; |
| break; |
| case INDEX_op_usadd_vec: |
| insn = usadd_op[vece]; |
| break; |
| case INDEX_op_ussub_vec: |
| insn = ussub_op[vece]; |
| break; |
| case INDEX_op_smin_vec: |
| insn = smin_op[vece]; |
| break; |
| case INDEX_op_umin_vec: |
| insn = umin_op[vece]; |
| break; |
| case INDEX_op_smax_vec: |
| insn = smax_op[vece]; |
| break; |
| case INDEX_op_umax_vec: |
| insn = umax_op[vece]; |
| break; |
| case INDEX_op_shlv_vec: |
| insn = shlv_op[vece]; |
| break; |
| case INDEX_op_shrv_vec: |
| insn = shrv_op[vece]; |
| break; |
| case INDEX_op_sarv_vec: |
| insn = sarv_op[vece]; |
| break; |
| case INDEX_op_and_vec: |
| insn = VAND; |
| break; |
| case INDEX_op_or_vec: |
| insn = VOR; |
| break; |
| case INDEX_op_xor_vec: |
| insn = VXOR; |
| break; |
| case INDEX_op_andc_vec: |
| insn = VANDC; |
| break; |
| case INDEX_op_not_vec: |
| insn = VNOR; |
| a2 = a1; |
| break; |
| case INDEX_op_orc_vec: |
| insn = VORC; |
| break; |
| case INDEX_op_nand_vec: |
| insn = VNAND; |
| break; |
| case INDEX_op_nor_vec: |
| insn = VNOR; |
| break; |
| case INDEX_op_eqv_vec: |
| insn = VEQV; |
| break; |
| |
| case INDEX_op_cmp_vec: |
| switch (args[3]) { |
| case TCG_COND_EQ: |
| insn = eq_op[vece]; |
| break; |
| case TCG_COND_NE: |
| insn = ne_op[vece]; |
| break; |
| case TCG_COND_GT: |
| insn = gts_op[vece]; |
| break; |
| case TCG_COND_GTU: |
| insn = gtu_op[vece]; |
| break; |
| default: |
| g_assert_not_reached(); |
| } |
| break; |
| |
| case INDEX_op_bitsel_vec: |
| tcg_out32(s, XXSEL | VRT(a0) | VRC(a1) | VRB(a2) | VRA(args[3])); |
| return; |
| |
| case INDEX_op_dup2_vec: |
| assert(TCG_TARGET_REG_BITS == 32); |
| /* With inputs a1 = xLxx, a2 = xHxx */ |
| tcg_out32(s, VMRGHW | VRT(a0) | VRA(a2) | VRB(a1)); /* a0 = xxHL */ |
| tcg_out_vsldoi(s, TCG_VEC_TMP1, a0, a0, 8); /* tmp = HLxx */ |
| tcg_out_vsldoi(s, a0, a0, TCG_VEC_TMP1, 8); /* a0 = HLHL */ |
| return; |
| |
| case INDEX_op_ppc_mrgh_vec: |
| insn = mrgh_op[vece]; |
| break; |
| case INDEX_op_ppc_mrgl_vec: |
| insn = mrgl_op[vece]; |
| break; |
| case INDEX_op_ppc_muleu_vec: |
| insn = muleu_op[vece]; |
| break; |
| case INDEX_op_ppc_mulou_vec: |
| insn = mulou_op[vece]; |
| break; |
| case INDEX_op_ppc_pkum_vec: |
| insn = pkum_op[vece]; |
| break; |
| case INDEX_op_rotlv_vec: |
| insn = rotl_op[vece]; |
| break; |
| case INDEX_op_ppc_msum_vec: |
| tcg_debug_assert(vece == MO_16); |
| tcg_out32(s, VMSUMUHM | VRT(a0) | VRA(a1) | VRB(a2) | VRC(args[3])); |
| return; |
| |
| case INDEX_op_mov_vec: /* Always emitted via tcg_out_mov. */ |
| case INDEX_op_dup_vec: /* Always emitted via tcg_out_dup_vec. */ |
| default: |
| g_assert_not_reached(); |
| } |
| |
| tcg_debug_assert(insn != 0); |
| tcg_out32(s, insn | VRT(a0) | VRA(a1) | VRB(a2)); |
| } |
| |
| static void expand_vec_shi(TCGType type, unsigned vece, TCGv_vec v0, |
| TCGv_vec v1, TCGArg imm, TCGOpcode opci) |
| { |
| TCGv_vec t1; |
| |
| if (vece == MO_32) { |
| /* |
| * Only 5 bits are significant, and VSPLTISB can represent -16..15. |
| * So using negative numbers gets us the 4th bit easily. |
| */ |
| imm = sextract32(imm, 0, 5); |
| } else { |
| imm &= (8 << vece) - 1; |
| } |
| |
| /* Splat w/bytes for xxspltib when 2.07 allows MO_64. */ |
| t1 = tcg_constant_vec(type, MO_8, imm); |
| vec_gen_3(opci, type, vece, tcgv_vec_arg(v0), |
| tcgv_vec_arg(v1), tcgv_vec_arg(t1)); |
| } |
| |
| static void expand_vec_cmp(TCGType type, unsigned vece, TCGv_vec v0, |
| TCGv_vec v1, TCGv_vec v2, TCGCond cond) |
| { |
| bool need_swap = false, need_inv = false; |
| |
| tcg_debug_assert(vece <= MO_32 || have_isa_2_07); |
| |
| switch (cond) { |
| case TCG_COND_EQ: |
| case TCG_COND_GT: |
| case TCG_COND_GTU: |
| break; |
| case TCG_COND_NE: |
| if (have_isa_3_00 && vece <= MO_32) { |
| break; |
| } |
| /* fall through */ |
| case TCG_COND_LE: |
| case TCG_COND_LEU: |
| need_inv = true; |
| break; |
| case TCG_COND_LT: |
| case TCG_COND_LTU: |
| need_swap = true; |
| break; |
| case TCG_COND_GE: |
| case TCG_COND_GEU: |
| need_swap = need_inv = true; |
| break; |
| default: |
| g_assert_not_reached(); |
| } |
| |
| if (need_inv) { |
| cond = tcg_invert_cond(cond); |
| } |
| if (need_swap) { |
| TCGv_vec t1; |
| t1 = v1, v1 = v2, v2 = t1; |
| cond = tcg_swap_cond(cond); |
| } |
| |
| vec_gen_4(INDEX_op_cmp_vec, type, vece, tcgv_vec_arg(v0), |
| tcgv_vec_arg(v1), tcgv_vec_arg(v2), cond); |
| |
| if (need_inv) { |
| tcg_gen_not_vec(vece, v0, v0); |
| } |
| } |
| |
| static void expand_vec_mul(TCGType type, unsigned vece, TCGv_vec v0, |
| TCGv_vec v1, TCGv_vec v2) |
| { |
| TCGv_vec t1 = tcg_temp_new_vec(type); |
| TCGv_vec t2 = tcg_temp_new_vec(type); |
| TCGv_vec c0, c16; |
| |
| switch (vece) { |
| case MO_8: |
| case MO_16: |
| vec_gen_3(INDEX_op_ppc_muleu_vec, type, vece, tcgv_vec_arg(t1), |
| tcgv_vec_arg(v1), tcgv_vec_arg(v2)); |
| vec_gen_3(INDEX_op_ppc_mulou_vec, type, vece, tcgv_vec_arg(t2), |
| tcgv_vec_arg(v1), tcgv_vec_arg(v2)); |
| vec_gen_3(INDEX_op_ppc_mrgh_vec, type, vece + 1, tcgv_vec_arg(v0), |
| tcgv_vec_arg(t1), tcgv_vec_arg(t2)); |
| vec_gen_3(INDEX_op_ppc_mrgl_vec, type, vece + 1, tcgv_vec_arg(t1), |
| tcgv_vec_arg(t1), tcgv_vec_arg(t2)); |
| vec_gen_3(INDEX_op_ppc_pkum_vec, type, vece, tcgv_vec_arg(v0), |
| tcgv_vec_arg(v0), tcgv_vec_arg(t1)); |
| break; |
| |
| case MO_32: |
| tcg_debug_assert(!have_isa_2_07); |
| /* |
| * Only 5 bits are significant, and VSPLTISB can represent -16..15. |
| * So using -16 is a quick way to represent 16. |
| */ |
| c16 = tcg_constant_vec(type, MO_8, -16); |
| c0 = tcg_constant_vec(type, MO_8, 0); |
| |
| vec_gen_3(INDEX_op_rotlv_vec, type, MO_32, tcgv_vec_arg(t1), |
| tcgv_vec_arg(v2), tcgv_vec_arg(c16)); |
| vec_gen_3(INDEX_op_ppc_mulou_vec, type, MO_16, tcgv_vec_arg(t2), |
| tcgv_vec_arg(v1), tcgv_vec_arg(v2)); |
| vec_gen_4(INDEX_op_ppc_msum_vec, type, MO_16, tcgv_vec_arg(t1), |
| tcgv_vec_arg(v1), tcgv_vec_arg(t1), tcgv_vec_arg(c0)); |
| vec_gen_3(INDEX_op_shlv_vec, type, MO_32, tcgv_vec_arg(t1), |
| tcgv_vec_arg(t1), tcgv_vec_arg(c16)); |
| tcg_gen_add_vec(MO_32, v0, t1, t2); |
| break; |
| |
| default: |
| g_assert_not_reached(); |
| } |
| tcg_temp_free_vec(t1); |
| tcg_temp_free_vec(t2); |
| } |
| |
| void tcg_expand_vec_op(TCGOpcode opc, TCGType type, unsigned vece, |
| TCGArg a0, ...) |
| { |
| va_list va; |
| TCGv_vec v0, v1, v2, t0; |
| TCGArg a2; |
| |
| va_start(va, a0); |
| v0 = temp_tcgv_vec(arg_temp(a0)); |
| v1 = temp_tcgv_vec(arg_temp(va_arg(va, TCGArg))); |
| a2 = va_arg(va, TCGArg); |
| |
| switch (opc) { |
| case INDEX_op_shli_vec: |
| expand_vec_shi(type, vece, v0, v1, a2, INDEX_op_shlv_vec); |
| break; |
| case INDEX_op_shri_vec: |
| expand_vec_shi(type, vece, v0, v1, a2, INDEX_op_shrv_vec); |
| break; |
| case INDEX_op_sari_vec: |
| expand_vec_shi(type, vece, v0, v1, a2, INDEX_op_sarv_vec); |
| break; |
| case INDEX_op_rotli_vec: |
| expand_vec_shi(type, vece, v0, v1, a2, INDEX_op_rotlv_vec); |
| break; |
| case INDEX_op_cmp_vec: |
| v2 = temp_tcgv_vec(arg_temp(a2)); |
| expand_vec_cmp(type, vece, v0, v1, v2, va_arg(va, TCGArg)); |
| break; |
| case INDEX_op_mul_vec: |
| v2 = temp_tcgv_vec(arg_temp(a2)); |
| expand_vec_mul(type, vece, v0, v1, v2); |
| break; |
| case INDEX_op_rotlv_vec: |
| v2 = temp_tcgv_vec(arg_temp(a2)); |
| t0 = tcg_temp_new_vec(type); |
| tcg_gen_neg_vec(vece, t0, v2); |
| tcg_gen_rotlv_vec(vece, v0, v1, t0); |
| tcg_temp_free_vec(t0); |
| break; |
| default: |
| g_assert_not_reached(); |
| } |
| va_end(va); |
| } |
| |
| static TCGConstraintSetIndex tcg_target_op_def(TCGOpcode op) |
| { |
| switch (op) { |
| case INDEX_op_goto_ptr: |
| return C_O0_I1(r); |
| |
| case INDEX_op_ld8u_i32: |
| case INDEX_op_ld8s_i32: |
| case INDEX_op_ld16u_i32: |
| case INDEX_op_ld16s_i32: |
| case INDEX_op_ld_i32: |
| case INDEX_op_ctpop_i32: |
| case INDEX_op_neg_i32: |
| case INDEX_op_not_i32: |
| case INDEX_op_ext8s_i32: |
| case INDEX_op_ext16s_i32: |
| case INDEX_op_bswap16_i32: |
| case INDEX_op_bswap32_i32: |
| case INDEX_op_extract_i32: |
| case INDEX_op_ld8u_i64: |
| case INDEX_op_ld8s_i64: |
| case INDEX_op_ld16u_i64: |
| case INDEX_op_ld16s_i64: |
| case INDEX_op_ld32u_i64: |
| case INDEX_op_ld32s_i64: |
| case INDEX_op_ld_i64: |
| case INDEX_op_ctpop_i64: |
| case INDEX_op_neg_i64: |
| case INDEX_op_not_i64: |
| case INDEX_op_ext8s_i64: |
| case INDEX_op_ext16s_i64: |
| case INDEX_op_ext32s_i64: |
| case INDEX_op_ext_i32_i64: |
| case INDEX_op_extu_i32_i64: |
| case INDEX_op_bswap16_i64: |
| case INDEX_op_bswap32_i64: |
| case INDEX_op_bswap64_i64: |
| case INDEX_op_extract_i64: |
| return C_O1_I1(r, r); |
| |
| case INDEX_op_st8_i32: |
| case INDEX_op_st16_i32: |
| case INDEX_op_st_i32: |
| case INDEX_op_st8_i64: |
| case INDEX_op_st16_i64: |
| case INDEX_op_st32_i64: |
| case INDEX_op_st_i64: |
| return C_O0_I2(r, r); |
| |
| case INDEX_op_add_i32: |
| case INDEX_op_and_i32: |
| case INDEX_op_or_i32: |
| case INDEX_op_xor_i32: |
| case INDEX_op_andc_i32: |
| case INDEX_op_orc_i32: |
| case INDEX_op_eqv_i32: |
| case INDEX_op_shl_i32: |
| case INDEX_op_shr_i32: |
| case INDEX_op_sar_i32: |
| case INDEX_op_rotl_i32: |
| case INDEX_op_rotr_i32: |
| case INDEX_op_and_i64: |
| case INDEX_op_andc_i64: |
| case INDEX_op_shl_i64: |
| case INDEX_op_shr_i64: |
| case INDEX_op_sar_i64: |
| case INDEX_op_rotl_i64: |
| case INDEX_op_rotr_i64: |
| return C_O1_I2(r, r, ri); |
| |
| case INDEX_op_mul_i32: |
| case INDEX_op_mul_i64: |
| return C_O1_I2(r, r, rI); |
| |
| case INDEX_op_div_i32: |
| case INDEX_op_divu_i32: |
| case INDEX_op_rem_i32: |
| case INDEX_op_remu_i32: |
| case INDEX_op_nand_i32: |
| case INDEX_op_nor_i32: |
| case INDEX_op_muluh_i32: |
| case INDEX_op_mulsh_i32: |
| case INDEX_op_orc_i64: |
| case INDEX_op_eqv_i64: |
| case INDEX_op_nand_i64: |
| case INDEX_op_nor_i64: |
| case INDEX_op_div_i64: |
| case INDEX_op_divu_i64: |
| case INDEX_op_rem_i64: |
| case INDEX_op_remu_i64: |
| case INDEX_op_mulsh_i64: |
| case INDEX_op_muluh_i64: |
| return C_O1_I2(r, r, r); |
| |
| case INDEX_op_sub_i32: |
| return C_O1_I2(r, rI, ri); |
| case INDEX_op_add_i64: |
| return C_O1_I2(r, r, rT); |
| case INDEX_op_or_i64: |
| case INDEX_op_xor_i64: |
| return C_O1_I2(r, r, rU); |
| case INDEX_op_sub_i64: |
| return C_O1_I2(r, rI, rT); |
| case INDEX_op_clz_i32: |
| case INDEX_op_ctz_i32: |
| case INDEX_op_clz_i64: |
| case INDEX_op_ctz_i64: |
| return C_O1_I2(r, r, rZW); |
| |
| case INDEX_op_brcond_i32: |
| case INDEX_op_brcond_i64: |
| return C_O0_I2(r, rC); |
| case INDEX_op_setcond_i32: |
| case INDEX_op_setcond_i64: |
| case INDEX_op_negsetcond_i32: |
| case INDEX_op_negsetcond_i64: |
| return C_O1_I2(r, r, rC); |
| case INDEX_op_movcond_i32: |
| case INDEX_op_movcond_i64: |
| return C_O1_I4(r, r, rC, rZ, rZ); |
| |
| case INDEX_op_deposit_i32: |
| case INDEX_op_deposit_i64: |
| return C_O1_I2(r, 0, rZ); |
| case INDEX_op_brcond2_i32: |
| return C_O0_I4(r, r, ri, ri); |
| case INDEX_op_setcond2_i32: |
| return C_O1_I4(r, r, r, ri, ri); |
| case INDEX_op_add2_i64: |
| case INDEX_op_add2_i32: |
| return C_O2_I4(r, r, r, r, rI, rZM); |
| case INDEX_op_sub2_i64: |
| case INDEX_op_sub2_i32: |
| return C_O2_I4(r, r, rI, rZM, r, r); |
| |
| case INDEX_op_qemu_ld_a32_i32: |
| return C_O1_I1(r, r); |
| case INDEX_op_qemu_ld_a64_i32: |
| return TCG_TARGET_REG_BITS == 64 ? C_O1_I1(r, r) : C_O1_I2(r, r, r); |
| case INDEX_op_qemu_ld_a32_i64: |
| return TCG_TARGET_REG_BITS == 64 ? C_O1_I1(r, r) : C_O2_I1(r, r, r); |
| case INDEX_op_qemu_ld_a64_i64: |
| return TCG_TARGET_REG_BITS == 64 ? C_O1_I1(r, r) : C_O2_I2(r, r, r, r); |
| |
| case INDEX_op_qemu_st_a32_i32: |
| return C_O0_I2(r, r); |
| case INDEX_op_qemu_st_a64_i32: |
| return TCG_TARGET_REG_BITS == 64 ? C_O0_I2(r, r) : C_O0_I3(r, r, r); |
| case INDEX_op_qemu_st_a32_i64: |
| return TCG_TARGET_REG_BITS == 64 ? C_O0_I2(r, r) : C_O0_I3(r, r, r); |
| case INDEX_op_qemu_st_a64_i64: |
| return TCG_TARGET_REG_BITS == 64 ? C_O0_I2(r, r) : C_O0_I4(r, r, r, r); |
| |
| case INDEX_op_qemu_ld_a32_i128: |
| case INDEX_op_qemu_ld_a64_i128: |
| return C_N1O1_I1(o, m, r); |
| case INDEX_op_qemu_st_a32_i128: |
| case INDEX_op_qemu_st_a64_i128: |
| return C_O0_I3(o, m, r); |
| |
| case INDEX_op_add_vec: |
| case INDEX_op_sub_vec: |
| case INDEX_op_mul_vec: |
| case INDEX_op_and_vec: |
| case INDEX_op_or_vec: |
| case INDEX_op_xor_vec: |
| case INDEX_op_andc_vec: |
| case INDEX_op_orc_vec: |
| case INDEX_op_nor_vec: |
| case INDEX_op_eqv_vec: |
| case INDEX_op_nand_vec: |
| case INDEX_op_cmp_vec: |
| case INDEX_op_ssadd_vec: |
| case INDEX_op_sssub_vec: |
| case INDEX_op_usadd_vec: |
| case INDEX_op_ussub_vec: |
| case INDEX_op_smax_vec: |
| case INDEX_op_smin_vec: |
| case INDEX_op_umax_vec: |
| case INDEX_op_umin_vec: |
| case INDEX_op_shlv_vec: |
| case INDEX_op_shrv_vec: |
| case INDEX_op_sarv_vec: |
| case INDEX_op_rotlv_vec: |
| case INDEX_op_rotrv_vec: |
| case INDEX_op_ppc_mrgh_vec: |
| case INDEX_op_ppc_mrgl_vec: |
| case INDEX_op_ppc_muleu_vec: |
| case INDEX_op_ppc_mulou_vec: |
| case INDEX_op_ppc_pkum_vec: |
| case INDEX_op_dup2_vec: |
| return C_O1_I2(v, v, v); |
| |
| case INDEX_op_not_vec: |
| case INDEX_op_neg_vec: |
| return C_O1_I1(v, v); |
| |
| case INDEX_op_dup_vec: |
| return have_isa_3_00 ? C_O1_I1(v, vr) : C_O1_I1(v, v); |
| |
| case INDEX_op_ld_vec: |
| case INDEX_op_dupm_vec: |
| return C_O1_I1(v, r); |
| |
| case INDEX_op_st_vec: |
| return C_O0_I2(v, r); |
| |
| case INDEX_op_bitsel_vec: |
| case INDEX_op_ppc_msum_vec: |
| return C_O1_I3(v, v, v, v); |
| |
| default: |
| g_assert_not_reached(); |
| } |
| } |
| |
| static void tcg_target_init(TCGContext *s) |
| { |
| tcg_target_available_regs[TCG_TYPE_I32] = 0xffffffff; |
| tcg_target_available_regs[TCG_TYPE_I64] = 0xffffffff; |
| if (have_altivec) { |
| tcg_target_available_regs[TCG_TYPE_V64] = 0xffffffff00000000ull; |
| tcg_target_available_regs[TCG_TYPE_V128] = 0xffffffff00000000ull; |
| } |
| |
| tcg_target_call_clobber_regs = 0; |
| tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_R0); |
| tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_R2); |
| tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_R3); |
| tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_R4); |
| tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_R5); |
| tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_R6); |
| tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_R7); |
| tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_R8); |
| tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_R9); |
| tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_R10); |
| tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_R11); |
| tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_R12); |
| |
| tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_V0); |
| tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_V1); |
| tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_V2); |
| tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_V3); |
| tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_V4); |
| tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_V5); |
| tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_V6); |
| tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_V7); |
| tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_V8); |
| tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_V9); |
| tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_V10); |
| tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_V11); |
| tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_V12); |
| tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_V13); |
| tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_V14); |
| tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_V15); |
| tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_V16); |
| tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_V17); |
| tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_V18); |
| tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_V19); |
| |
| s->reserved_regs = 0; |
| tcg_regset_set_reg(s->reserved_regs, TCG_REG_R0); /* tcg temp */ |
| tcg_regset_set_reg(s->reserved_regs, TCG_REG_R1); /* stack pointer */ |
| #if defined(_CALL_SYSV) |
| tcg_regset_set_reg(s->reserved_regs, TCG_REG_R2); /* toc pointer */ |
| #endif |
| #if defined(_CALL_SYSV) || TCG_TARGET_REG_BITS == 64 |
| tcg_regset_set_reg(s->reserved_regs, TCG_REG_R13); /* thread pointer */ |
| #endif |
| tcg_regset_set_reg(s->reserved_regs, TCG_REG_TMP1); |
| tcg_regset_set_reg(s->reserved_regs, TCG_REG_TMP2); |
| tcg_regset_set_reg(s->reserved_regs, TCG_VEC_TMP1); |
| tcg_regset_set_reg(s->reserved_regs, TCG_VEC_TMP2); |
| if (USE_REG_TB) { |
| tcg_regset_set_reg(s->reserved_regs, TCG_REG_TB); /* tb->tc_ptr */ |
| } |
| } |
| |
| #ifdef __ELF__ |
| typedef struct { |
| DebugFrameCIE cie; |
| DebugFrameFDEHeader fde; |
| uint8_t fde_def_cfa[4]; |
| uint8_t fde_reg_ofs[ARRAY_SIZE(tcg_target_callee_save_regs) * 2 + 3]; |
| } DebugFrame; |
| |
| /* We're expecting a 2 byte uleb128 encoded value. */ |
| QEMU_BUILD_BUG_ON(FRAME_SIZE >= (1 << 14)); |
| |
| #if TCG_TARGET_REG_BITS == 64 |
| # define ELF_HOST_MACHINE EM_PPC64 |
| #else |
| # define ELF_HOST_MACHINE EM_PPC |
| #endif |
| |
| static DebugFrame debug_frame = { |
| .cie.len = sizeof(DebugFrameCIE)-4, /* length after .len member */ |
| .cie.id = -1, |
| .cie.version = 1, |
| .cie.code_align = 1, |
| .cie.data_align = (-SZR & 0x7f), /* sleb128 -SZR */ |
| .cie.return_column = 65, |
| |
| /* Total FDE size does not include the "len" member. */ |
| .fde.len = sizeof(DebugFrame) - offsetof(DebugFrame, fde.cie_offset), |
| |
| .fde_def_cfa = { |
| 12, TCG_REG_R1, /* DW_CFA_def_cfa r1, ... */ |
| (FRAME_SIZE & 0x7f) | 0x80, /* ... uleb128 FRAME_SIZE */ |
| (FRAME_SIZE >> 7) |
| }, |
| .fde_reg_ofs = { |
| /* DW_CFA_offset_extended_sf, lr, LR_OFFSET */ |
| 0x11, 65, (LR_OFFSET / -SZR) & 0x7f, |
| } |
| }; |
| |
| void tcg_register_jit(const void *buf, size_t buf_size) |
| { |
| uint8_t *p = &debug_frame.fde_reg_ofs[3]; |
| int i; |
| |
| for (i = 0; i < ARRAY_SIZE(tcg_target_callee_save_regs); ++i, p += 2) { |
| p[0] = 0x80 + tcg_target_callee_save_regs[i]; |
| p[1] = (FRAME_SIZE - (REG_SAVE_BOT + i * SZR)) / SZR; |
| } |
| |
| debug_frame.fde.func_start = (uintptr_t)buf; |
| debug_frame.fde.func_len = buf_size; |
| |
| tcg_register_jit_int(buf, buf_size, &debug_frame, sizeof(debug_frame)); |
| } |
| #endif /* __ELF__ */ |
| #undef VMULEUB |
| #undef VMULEUH |
| #undef VMULEUW |
| #undef VMULOUB |
| #undef VMULOUH |
| #undef VMULOUW |
| #undef VMSUMUHM |
