| /* |
| * 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. |
| */ |
| |
| #ifndef NDEBUG |
| static const char * const tcg_target_reg_names[TCG_TARGET_NB_REGS] = { |
| "%g0", |
| "%g1", |
| "%g2", |
| "%g3", |
| "%g4", |
| "%g5", |
| "%g6", |
| "%g7", |
| "%o0", |
| "%o1", |
| "%o2", |
| "%o3", |
| "%o4", |
| "%o5", |
| "%o6", |
| "%o7", |
| "%l0", |
| "%l1", |
| "%l2", |
| "%l3", |
| "%l4", |
| "%l5", |
| "%l6", |
| "%l7", |
| "%i0", |
| "%i1", |
| "%i2", |
| "%i3", |
| "%i4", |
| "%i5", |
| "%i6", |
| "%i7", |
| }; |
| #endif |
| |
| static const int tcg_target_reg_alloc_order[] = { |
| TCG_REG_L0, |
| TCG_REG_L1, |
| TCG_REG_L2, |
| TCG_REG_L3, |
| TCG_REG_L4, |
| TCG_REG_L5, |
| TCG_REG_L6, |
| TCG_REG_L7, |
| TCG_REG_I0, |
| TCG_REG_I1, |
| TCG_REG_I2, |
| TCG_REG_I3, |
| TCG_REG_I4, |
| }; |
| |
| static const int tcg_target_call_iarg_regs[6] = { |
| TCG_REG_O0, |
| TCG_REG_O1, |
| TCG_REG_O2, |
| TCG_REG_O3, |
| TCG_REG_O4, |
| TCG_REG_O5, |
| }; |
| |
| static const int tcg_target_call_oarg_regs[2] = { |
| TCG_REG_O0, |
| TCG_REG_O1, |
| }; |
| |
| static inline int check_fit_tl(tcg_target_long val, unsigned int bits) |
| { |
| return (val << ((sizeof(tcg_target_long) * 8 - bits)) |
| >> (sizeof(tcg_target_long) * 8 - bits)) == val; |
| } |
| |
| static inline int check_fit_i32(uint32_t val, unsigned int bits) |
| { |
| return ((val << (32 - bits)) >> (32 - bits)) == val; |
| } |
| |
| static void patch_reloc(uint8_t *code_ptr, int type, |
| tcg_target_long value, tcg_target_long addend) |
| { |
| value += addend; |
| switch (type) { |
| case R_SPARC_32: |
| if (value != (uint32_t)value) |
| tcg_abort(); |
| *(uint32_t *)code_ptr = value; |
| break; |
| case R_SPARC_WDISP22: |
| value -= (long)code_ptr; |
| value >>= 2; |
| if (!check_fit_tl(value, 22)) |
| tcg_abort(); |
| *(uint32_t *)code_ptr = ((*(uint32_t *)code_ptr) & ~0x3fffff) | value; |
| break; |
| case R_SPARC_WDISP19: |
| value -= (long)code_ptr; |
| value >>= 2; |
| if (!check_fit_tl(value, 19)) |
| tcg_abort(); |
| *(uint32_t *)code_ptr = ((*(uint32_t *)code_ptr) & ~0x7ffff) | value; |
| break; |
| default: |
| tcg_abort(); |
| } |
| } |
| |
| /* maximum number of register used for input function arguments */ |
| static inline int tcg_target_get_call_iarg_regs_count(int flags) |
| { |
| return 6; |
| } |
| |
| /* parse target specific constraints */ |
| static int target_parse_constraint(TCGArgConstraint *ct, const char **pct_str) |
| { |
| const char *ct_str; |
| |
| ct_str = *pct_str; |
| switch (ct_str[0]) { |
| case 'r': |
| ct->ct |= TCG_CT_REG; |
| tcg_regset_set32(ct->u.regs, 0, 0xffffffff); |
| break; |
| case 'L': /* qemu_ld/st constraint */ |
| ct->ct |= TCG_CT_REG; |
| tcg_regset_set32(ct->u.regs, 0, 0xffffffff); |
| // Helper args |
| tcg_regset_reset_reg(ct->u.regs, TCG_REG_O0); |
| tcg_regset_reset_reg(ct->u.regs, TCG_REG_O1); |
| tcg_regset_reset_reg(ct->u.regs, TCG_REG_O2); |
| break; |
| case 'I': |
| ct->ct |= TCG_CT_CONST_S11; |
| break; |
| case 'J': |
| ct->ct |= TCG_CT_CONST_S13; |
| break; |
| default: |
| return -1; |
| } |
| ct_str++; |
| *pct_str = ct_str; |
| return 0; |
| } |
| |
| /* test if a constant matches the constraint */ |
| static inline int tcg_target_const_match(tcg_target_long val, |
| const TCGArgConstraint *arg_ct) |
| { |
| int ct; |
| |
| ct = arg_ct->ct; |
| if (ct & TCG_CT_CONST) |
| return 1; |
| else if ((ct & TCG_CT_CONST_S11) && check_fit_tl(val, 11)) |
| return 1; |
| else if ((ct & TCG_CT_CONST_S13) && check_fit_tl(val, 13)) |
| return 1; |
| else |
| return 0; |
| } |
| |
| #define INSN_OP(x) ((x) << 30) |
| #define INSN_OP2(x) ((x) << 22) |
| #define INSN_OP3(x) ((x) << 19) |
| #define INSN_OPF(x) ((x) << 5) |
| #define INSN_RD(x) ((x) << 25) |
| #define INSN_RS1(x) ((x) << 14) |
| #define INSN_RS2(x) (x) |
| #define INSN_ASI(x) ((x) << 5) |
| |
| #define INSN_IMM11(x) ((1 << 13) | ((x) & 0x7ff)) |
| #define INSN_IMM13(x) ((1 << 13) | ((x) & 0x1fff)) |
| #define INSN_OFF19(x) (((x) >> 2) & 0x07ffff) |
| #define INSN_OFF22(x) (((x) >> 2) & 0x3fffff) |
| |
| #define INSN_COND(x, a) (((x) << 25) | ((a) << 29)) |
| #define COND_N 0x0 |
| #define COND_E 0x1 |
| #define COND_LE 0x2 |
| #define COND_L 0x3 |
| #define COND_LEU 0x4 |
| #define COND_CS 0x5 |
| #define COND_NEG 0x6 |
| #define COND_VS 0x7 |
| #define COND_A 0x8 |
| #define COND_NE 0x9 |
| #define COND_G 0xa |
| #define COND_GE 0xb |
| #define COND_GU 0xc |
| #define COND_CC 0xd |
| #define COND_POS 0xe |
| #define COND_VC 0xf |
| #define BA (INSN_OP(0) | INSN_COND(COND_A, 0) | INSN_OP2(0x2)) |
| |
| #define MOVCC_ICC (1 << 18) |
| #define MOVCC_XCC (1 << 18 | 1 << 12) |
| |
| #define ARITH_ADD (INSN_OP(2) | INSN_OP3(0x00)) |
| #define ARITH_ADDCC (INSN_OP(2) | INSN_OP3(0x10)) |
| #define ARITH_AND (INSN_OP(2) | INSN_OP3(0x01)) |
| #define ARITH_ANDN (INSN_OP(2) | INSN_OP3(0x05)) |
| #define ARITH_OR (INSN_OP(2) | INSN_OP3(0x02)) |
| #define ARITH_ORCC (INSN_OP(2) | INSN_OP3(0x12)) |
| #define ARITH_ORN (INSN_OP(2) | INSN_OP3(0x06)) |
| #define ARITH_XOR (INSN_OP(2) | INSN_OP3(0x03)) |
| #define ARITH_SUB (INSN_OP(2) | INSN_OP3(0x04)) |
| #define ARITH_SUBCC (INSN_OP(2) | INSN_OP3(0x14)) |
| #define ARITH_ADDX (INSN_OP(2) | INSN_OP3(0x10)) |
| #define ARITH_SUBX (INSN_OP(2) | INSN_OP3(0x0c)) |
| #define ARITH_UMUL (INSN_OP(2) | INSN_OP3(0x0a)) |
| #define ARITH_UDIV (INSN_OP(2) | INSN_OP3(0x0e)) |
| #define ARITH_SDIV (INSN_OP(2) | INSN_OP3(0x0f)) |
| #define ARITH_MULX (INSN_OP(2) | INSN_OP3(0x09)) |
| #define ARITH_UDIVX (INSN_OP(2) | INSN_OP3(0x0d)) |
| #define ARITH_SDIVX (INSN_OP(2) | INSN_OP3(0x2d)) |
| #define ARITH_MOVCC (INSN_OP(2) | INSN_OP3(0x2c)) |
| |
| #define SHIFT_SLL (INSN_OP(2) | INSN_OP3(0x25)) |
| #define SHIFT_SRL (INSN_OP(2) | INSN_OP3(0x26)) |
| #define SHIFT_SRA (INSN_OP(2) | INSN_OP3(0x27)) |
| |
| #define SHIFT_SLLX (INSN_OP(2) | INSN_OP3(0x25) | (1 << 12)) |
| #define SHIFT_SRLX (INSN_OP(2) | INSN_OP3(0x26) | (1 << 12)) |
| #define SHIFT_SRAX (INSN_OP(2) | INSN_OP3(0x27) | (1 << 12)) |
| |
| #define RDY (INSN_OP(2) | INSN_OP3(0x28) | INSN_RS1(0)) |
| #define WRY (INSN_OP(2) | INSN_OP3(0x30) | INSN_RD(0)) |
| #define JMPL (INSN_OP(2) | INSN_OP3(0x38)) |
| #define SAVE (INSN_OP(2) | INSN_OP3(0x3c)) |
| #define RESTORE (INSN_OP(2) | INSN_OP3(0x3d)) |
| #define SETHI (INSN_OP(0) | INSN_OP2(0x4)) |
| #define CALL INSN_OP(1) |
| #define LDUB (INSN_OP(3) | INSN_OP3(0x01)) |
| #define LDSB (INSN_OP(3) | INSN_OP3(0x09)) |
| #define LDUH (INSN_OP(3) | INSN_OP3(0x02)) |
| #define LDSH (INSN_OP(3) | INSN_OP3(0x0a)) |
| #define LDUW (INSN_OP(3) | INSN_OP3(0x00)) |
| #define LDSW (INSN_OP(3) | INSN_OP3(0x08)) |
| #define LDX (INSN_OP(3) | INSN_OP3(0x0b)) |
| #define STB (INSN_OP(3) | INSN_OP3(0x05)) |
| #define STH (INSN_OP(3) | INSN_OP3(0x06)) |
| #define STW (INSN_OP(3) | INSN_OP3(0x04)) |
| #define STX (INSN_OP(3) | INSN_OP3(0x0e)) |
| #define LDUBA (INSN_OP(3) | INSN_OP3(0x11)) |
| #define LDSBA (INSN_OP(3) | INSN_OP3(0x19)) |
| #define LDUHA (INSN_OP(3) | INSN_OP3(0x12)) |
| #define LDSHA (INSN_OP(3) | INSN_OP3(0x1a)) |
| #define LDUWA (INSN_OP(3) | INSN_OP3(0x10)) |
| #define LDSWA (INSN_OP(3) | INSN_OP3(0x18)) |
| #define LDXA (INSN_OP(3) | INSN_OP3(0x1b)) |
| #define STBA (INSN_OP(3) | INSN_OP3(0x15)) |
| #define STHA (INSN_OP(3) | INSN_OP3(0x16)) |
| #define STWA (INSN_OP(3) | INSN_OP3(0x14)) |
| #define STXA (INSN_OP(3) | INSN_OP3(0x1e)) |
| |
| #ifndef ASI_PRIMARY_LITTLE |
| #define ASI_PRIMARY_LITTLE 0x88 |
| #endif |
| |
| static inline void tcg_out_arith(TCGContext *s, int rd, int rs1, int rs2, |
| int op) |
| { |
| tcg_out32(s, op | INSN_RD(rd) | INSN_RS1(rs1) | |
| INSN_RS2(rs2)); |
| } |
| |
| static inline void tcg_out_arithi(TCGContext *s, int rd, int rs1, |
| uint32_t offset, int op) |
| { |
| tcg_out32(s, op | INSN_RD(rd) | INSN_RS1(rs1) | |
| INSN_IMM13(offset)); |
| } |
| |
| static void tcg_out_arithc(TCGContext *s, int rd, int rs1, |
| int val2, int val2const, int op) |
| { |
| tcg_out32(s, op | INSN_RD(rd) | INSN_RS1(rs1) |
| | (val2const ? INSN_IMM13(val2) : INSN_RS2(val2))); |
| } |
| |
| static inline void tcg_out_mov(TCGContext *s, int ret, int arg) |
| { |
| tcg_out_arith(s, ret, arg, TCG_REG_G0, ARITH_OR); |
| } |
| |
| static inline void tcg_out_sethi(TCGContext *s, int ret, uint32_t arg) |
| { |
| tcg_out32(s, SETHI | INSN_RD(ret) | ((arg & 0xfffffc00) >> 10)); |
| } |
| |
| static inline void tcg_out_movi_imm13(TCGContext *s, int ret, uint32_t arg) |
| { |
| tcg_out_arithi(s, ret, TCG_REG_G0, arg, ARITH_OR); |
| } |
| |
| static inline void tcg_out_movi_imm32(TCGContext *s, int ret, uint32_t arg) |
| { |
| if (check_fit_tl(arg, 13)) |
| tcg_out_movi_imm13(s, ret, arg); |
| else { |
| tcg_out_sethi(s, ret, arg); |
| if (arg & 0x3ff) |
| tcg_out_arithi(s, ret, ret, arg & 0x3ff, ARITH_OR); |
| } |
| } |
| |
| static inline void tcg_out_movi(TCGContext *s, TCGType type, |
| int ret, tcg_target_long arg) |
| { |
| /* All 32-bit constants, as well as 64-bit constants with |
| no high bits set go through movi_imm32. */ |
| if (TCG_TARGET_REG_BITS == 32 |
| || type == TCG_TYPE_I32 |
| || (arg & ~(tcg_target_long)0xffffffff) == 0) { |
| tcg_out_movi_imm32(s, ret, arg); |
| } else if (check_fit_tl(arg, 13)) { |
| /* A 13-bit constant sign-extended to 64-bits. */ |
| tcg_out_movi_imm13(s, ret, arg); |
| } else if (check_fit_tl(arg, 32)) { |
| /* A 32-bit constant sign-extended to 64-bits. */ |
| tcg_out_sethi(s, ret, ~arg); |
| tcg_out_arithi(s, ret, ret, (arg & 0x3ff) | -0x400, ARITH_XOR); |
| } else { |
| tcg_out_movi_imm32(s, TCG_REG_I4, arg >> (TCG_TARGET_REG_BITS / 2)); |
| tcg_out_arithi(s, TCG_REG_I4, TCG_REG_I4, 32, SHIFT_SLLX); |
| tcg_out_movi_imm32(s, ret, arg); |
| tcg_out_arith(s, ret, ret, TCG_REG_I4, ARITH_OR); |
| } |
| } |
| |
| static inline void tcg_out_ld_raw(TCGContext *s, int ret, |
| tcg_target_long arg) |
| { |
| tcg_out_sethi(s, ret, arg); |
| tcg_out32(s, LDUW | INSN_RD(ret) | INSN_RS1(ret) | |
| INSN_IMM13(arg & 0x3ff)); |
| } |
| |
| static inline void tcg_out_ld_ptr(TCGContext *s, int ret, |
| tcg_target_long arg) |
| { |
| if (!check_fit_tl(arg, 10)) |
| tcg_out_movi(s, TCG_TYPE_PTR, ret, arg & ~0x3ffULL); |
| if (TCG_TARGET_REG_BITS == 64) { |
| tcg_out32(s, LDX | INSN_RD(ret) | INSN_RS1(ret) | |
| INSN_IMM13(arg & 0x3ff)); |
| } else { |
| tcg_out32(s, LDUW | INSN_RD(ret) | INSN_RS1(ret) | |
| INSN_IMM13(arg & 0x3ff)); |
| } |
| } |
| |
| static inline void tcg_out_ldst(TCGContext *s, int ret, int addr, int offset, int op) |
| { |
| if (check_fit_tl(offset, 13)) |
| tcg_out32(s, op | INSN_RD(ret) | INSN_RS1(addr) | |
| INSN_IMM13(offset)); |
| else { |
| tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_I5, offset); |
| tcg_out32(s, op | INSN_RD(ret) | INSN_RS1(TCG_REG_I5) | |
| INSN_RS2(addr)); |
| } |
| } |
| |
| static inline void tcg_out_ldst_asi(TCGContext *s, int ret, int addr, |
| int offset, int op, int asi) |
| { |
| tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_I5, offset); |
| tcg_out32(s, op | INSN_RD(ret) | INSN_RS1(TCG_REG_I5) | |
| INSN_ASI(asi) | INSN_RS2(addr)); |
| } |
| |
| static inline void tcg_out_ld(TCGContext *s, TCGType type, int ret, |
| int arg1, tcg_target_long arg2) |
| { |
| if (type == TCG_TYPE_I32) |
| tcg_out_ldst(s, ret, arg1, arg2, LDUW); |
| else |
| tcg_out_ldst(s, ret, arg1, arg2, LDX); |
| } |
| |
| static inline void tcg_out_st(TCGContext *s, TCGType type, int arg, |
| int arg1, tcg_target_long arg2) |
| { |
| if (type == TCG_TYPE_I32) |
| tcg_out_ldst(s, arg, arg1, arg2, STW); |
| else |
| tcg_out_ldst(s, arg, arg1, arg2, STX); |
| } |
| |
| static inline void tcg_out_sety(TCGContext *s, int rs) |
| { |
| tcg_out32(s, WRY | INSN_RS1(TCG_REG_G0) | INSN_RS2(rs)); |
| } |
| |
| static inline void tcg_out_rdy(TCGContext *s, int rd) |
| { |
| tcg_out32(s, RDY | INSN_RD(rd)); |
| } |
| |
| static inline void tcg_out_addi(TCGContext *s, int reg, tcg_target_long val) |
| { |
| if (val != 0) { |
| if (check_fit_tl(val, 13)) |
| tcg_out_arithi(s, reg, reg, val, ARITH_ADD); |
| else { |
| tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_I5, val); |
| tcg_out_arith(s, reg, reg, TCG_REG_I5, ARITH_ADD); |
| } |
| } |
| } |
| |
| static inline void tcg_out_andi(TCGContext *s, int reg, tcg_target_long val) |
| { |
| if (val != 0) { |
| if (check_fit_tl(val, 13)) |
| tcg_out_arithi(s, reg, reg, val, ARITH_AND); |
| else { |
| tcg_out_movi(s, TCG_TYPE_I32, TCG_REG_I5, val); |
| tcg_out_arith(s, reg, reg, TCG_REG_I5, ARITH_AND); |
| } |
| } |
| } |
| |
| static void tcg_out_div32(TCGContext *s, int rd, int rs1, |
| int val2, int val2const, int uns) |
| { |
| /* Load Y with the sign/zero extension of RS1 to 64-bits. */ |
| if (uns) { |
| tcg_out_sety(s, TCG_REG_G0); |
| } else { |
| tcg_out_arithi(s, TCG_REG_I5, rs1, 31, SHIFT_SRA); |
| tcg_out_sety(s, TCG_REG_I5); |
| } |
| |
| tcg_out_arithc(s, rd, rs1, val2, val2const, |
| uns ? ARITH_UDIV : ARITH_SDIV); |
| } |
| |
| static inline void tcg_out_nop(TCGContext *s) |
| { |
| tcg_out_sethi(s, TCG_REG_G0, 0); |
| } |
| |
| static void tcg_out_branch_i32(TCGContext *s, int opc, int label_index) |
| { |
| int32_t val; |
| TCGLabel *l = &s->labels[label_index]; |
| |
| if (l->has_value) { |
| val = l->u.value - (tcg_target_long)s->code_ptr; |
| tcg_out32(s, (INSN_OP(0) | INSN_COND(opc, 0) | INSN_OP2(0x2) |
| | INSN_OFF22(l->u.value - (unsigned long)s->code_ptr))); |
| } else { |
| tcg_out_reloc(s, s->code_ptr, R_SPARC_WDISP22, label_index, 0); |
| tcg_out32(s, (INSN_OP(0) | INSN_COND(opc, 0) | INSN_OP2(0x2) | 0)); |
| } |
| } |
| |
| #if TCG_TARGET_REG_BITS == 64 |
| static void tcg_out_branch_i64(TCGContext *s, int opc, int label_index) |
| { |
| int32_t val; |
| TCGLabel *l = &s->labels[label_index]; |
| |
| if (l->has_value) { |
| val = l->u.value - (tcg_target_long)s->code_ptr; |
| tcg_out32(s, (INSN_OP(0) | INSN_COND(opc, 0) | INSN_OP2(0x1) | |
| (0x5 << 19) | |
| INSN_OFF19(l->u.value - (unsigned long)s->code_ptr))); |
| } else { |
| tcg_out_reloc(s, s->code_ptr, R_SPARC_WDISP19, label_index, 0); |
| tcg_out32(s, (INSN_OP(0) | INSN_COND(opc, 0) | INSN_OP2(0x1) | |
| (0x5 << 19) | 0)); |
| } |
| } |
| #endif |
| |
| static const uint8_t tcg_cond_to_bcond[10] = { |
| [TCG_COND_EQ] = COND_E, |
| [TCG_COND_NE] = COND_NE, |
| [TCG_COND_LT] = COND_L, |
| [TCG_COND_GE] = COND_GE, |
| [TCG_COND_LE] = COND_LE, |
| [TCG_COND_GT] = COND_G, |
| [TCG_COND_LTU] = COND_CS, |
| [TCG_COND_GEU] = COND_CC, |
| [TCG_COND_LEU] = COND_LEU, |
| [TCG_COND_GTU] = COND_GU, |
| }; |
| |
| static void tcg_out_cmp(TCGContext *s, TCGArg c1, TCGArg c2, int c2const) |
| { |
| tcg_out_arithc(s, TCG_REG_G0, c1, c2, c2const, ARITH_SUBCC); |
| } |
| |
| static void tcg_out_brcond_i32(TCGContext *s, int cond, |
| TCGArg arg1, TCGArg arg2, int const_arg2, |
| int label_index) |
| { |
| tcg_out_cmp(s, arg1, arg2, const_arg2); |
| tcg_out_branch_i32(s, tcg_cond_to_bcond[cond], label_index); |
| tcg_out_nop(s); |
| } |
| |
| #if TCG_TARGET_REG_BITS == 64 |
| static void tcg_out_brcond_i64(TCGContext *s, int cond, |
| TCGArg arg1, TCGArg arg2, int const_arg2, |
| int label_index) |
| { |
| tcg_out_cmp(s, arg1, arg2, const_arg2); |
| tcg_out_branch_i64(s, tcg_cond_to_bcond[cond], label_index); |
| tcg_out_nop(s); |
| } |
| #else |
| static void tcg_out_brcond2_i32(TCGContext *s, int cond, |
| TCGArg al, TCGArg ah, |
| TCGArg bl, int blconst, |
| TCGArg bh, int bhconst, int label_dest) |
| { |
| int cc, label_next = gen_new_label(); |
| |
| tcg_out_cmp(s, ah, bh, bhconst); |
| |
| /* Note that we fill one of the delay slots with the second compare. */ |
| switch (cond) { |
| case TCG_COND_EQ: |
| cc = INSN_COND(tcg_cond_to_bcond[TCG_COND_NE], 0); |
| tcg_out_branch_i32(s, cc, label_next); |
| tcg_out_cmp(s, al, bl, blconst); |
| cc = INSN_COND(tcg_cond_to_bcond[TCG_COND_EQ], 0); |
| tcg_out_branch_i32(s, cc, label_dest); |
| break; |
| |
| case TCG_COND_NE: |
| cc = INSN_COND(tcg_cond_to_bcond[TCG_COND_NE], 0); |
| tcg_out_branch_i32(s, cc, label_dest); |
| tcg_out_cmp(s, al, bl, blconst); |
| tcg_out_branch_i32(s, cc, label_dest); |
| break; |
| |
| default: |
| /* ??? One could fairly easily special-case 64-bit unsigned |
| compares against 32-bit zero-extended constants. For instance, |
| we know that (unsigned)AH < 0 is false and need not emit it. |
| Similarly, (unsigned)AH > 0 being true implies AH != 0, so the |
| second branch will never be taken. */ |
| cc = INSN_COND(tcg_cond_to_bcond[cond], 0); |
| tcg_out_branch_i32(s, cc, label_dest); |
| tcg_out_nop(s); |
| cc = INSN_COND(tcg_cond_to_bcond[TCG_COND_NE], 0); |
| tcg_out_branch_i32(s, cc, label_next); |
| tcg_out_cmp(s, al, bl, blconst); |
| cc = INSN_COND(tcg_cond_to_bcond[tcg_unsigned_cond(cond)], 0); |
| tcg_out_branch_i32(s, cc, label_dest); |
| break; |
| } |
| tcg_out_nop(s); |
| |
| tcg_out_label(s, label_next, (tcg_target_long)s->code_ptr); |
| } |
| #endif |
| |
| static void tcg_out_setcond_i32(TCGContext *s, int cond, TCGArg ret, |
| TCGArg c1, TCGArg c2, int c2const) |
| { |
| TCGArg t; |
| |
| /* For 32-bit comparisons, we can play games with ADDX/SUBX. */ |
| switch (cond) { |
| case TCG_COND_EQ: |
| case TCG_COND_NE: |
| if (c2 != 0) { |
| tcg_out_arithc(s, ret, c1, c2, c2const, ARITH_XOR); |
| } |
| c1 = TCG_REG_G0, c2 = ret, c2const = 0; |
| cond = (cond == TCG_COND_EQ ? TCG_COND_LEU : TCG_COND_LTU); |
| break; |
| |
| case TCG_COND_GTU: |
| case TCG_COND_GEU: |
| if (c2const && c2 != 0) { |
| tcg_out_movi_imm13(s, TCG_REG_I5, c2); |
| c2 = TCG_REG_I5; |
| } |
| t = c1, c1 = c2, c2 = t, c2const = 0; |
| cond = tcg_swap_cond(cond); |
| break; |
| |
| case TCG_COND_LTU: |
| case TCG_COND_LEU: |
| break; |
| |
| default: |
| tcg_out_cmp(s, c1, c2, c2const); |
| #if defined(__sparc_v9__) || defined(__sparc_v8plus__) |
| tcg_out_movi_imm13(s, ret, 0); |
| tcg_out32 (s, ARITH_MOVCC | INSN_RD(ret) |
| | INSN_RS1(tcg_cond_to_bcond[cond]) |
| | MOVCC_ICC | INSN_IMM11(1)); |
| #else |
| t = gen_new_label(); |
| tcg_out_branch_i32(s, INSN_COND(tcg_cond_to_bcond[cond], 1), t); |
| tcg_out_movi_imm13(s, ret, 1); |
| tcg_out_movi_imm13(s, ret, 0); |
| tcg_out_label(s, t, (tcg_target_long)s->code_ptr); |
| #endif |
| return; |
| } |
| |
| tcg_out_cmp(s, c1, c2, c2const); |
| if (cond == TCG_COND_LTU) { |
| tcg_out_arithi(s, ret, TCG_REG_G0, 0, ARITH_ADDX); |
| } else { |
| tcg_out_arithi(s, ret, TCG_REG_G0, -1, ARITH_SUBX); |
| } |
| } |
| |
| #if TCG_TARGET_REG_BITS == 64 |
| static void tcg_out_setcond_i64(TCGContext *s, int cond, TCGArg ret, |
| TCGArg c1, TCGArg c2, int c2const) |
| { |
| tcg_out_cmp(s, c1, c2, c2const); |
| tcg_out_movi_imm13(s, ret, 0); |
| tcg_out32 (s, ARITH_MOVCC | INSN_RD(ret) |
| | INSN_RS1(tcg_cond_to_bcond[cond]) |
| | MOVCC_XCC | INSN_IMM11(1)); |
| } |
| #else |
| static void tcg_out_setcond2_i32(TCGContext *s, int cond, TCGArg ret, |
| TCGArg al, TCGArg ah, |
| TCGArg bl, int blconst, |
| TCGArg bh, int bhconst) |
| { |
| int lab; |
| |
| switch (cond) { |
| case TCG_COND_EQ: |
| tcg_out_setcond_i32(s, TCG_COND_EQ, TCG_REG_I5, al, bl, blconst); |
| tcg_out_setcond_i32(s, TCG_COND_EQ, ret, ah, bh, bhconst); |
| tcg_out_arith(s, ret, ret, TCG_REG_I5, ARITH_AND); |
| break; |
| |
| case TCG_COND_NE: |
| tcg_out_setcond_i32(s, TCG_COND_NE, TCG_REG_I5, al, al, blconst); |
| tcg_out_setcond_i32(s, TCG_COND_NE, ret, ah, bh, bhconst); |
| tcg_out_arith(s, ret, ret, TCG_REG_I5, ARITH_OR); |
| break; |
| |
| default: |
| lab = gen_new_label(); |
| |
| tcg_out_cmp(s, ah, bh, bhconst); |
| tcg_out_branch_i32(s, INSN_COND(tcg_cond_to_bcond[cond], 1), lab); |
| tcg_out_movi_imm13(s, ret, 1); |
| tcg_out_branch_i32(s, INSN_COND(COND_NE, 1), lab); |
| tcg_out_movi_imm13(s, ret, 0); |
| |
| tcg_out_setcond_i32(s, tcg_unsigned_cond(cond), ret, al, bl, blconst); |
| |
| tcg_out_label(s, lab, (tcg_target_long)s->code_ptr); |
| break; |
| } |
| } |
| #endif |
| |
| /* Generate global QEMU prologue and epilogue code */ |
| void tcg_target_qemu_prologue(TCGContext *s) |
| { |
| tcg_out32(s, SAVE | INSN_RD(TCG_REG_O6) | INSN_RS1(TCG_REG_O6) | |
| INSN_IMM13(-TCG_TARGET_STACK_MINFRAME)); |
| tcg_out32(s, JMPL | INSN_RD(TCG_REG_G0) | INSN_RS1(TCG_REG_I0) | |
| INSN_RS2(TCG_REG_G0)); |
| tcg_out_nop(s); |
| } |
| |
| #if defined(CONFIG_SOFTMMU) |
| |
| #include "../../softmmu_defs.h" |
| |
| static const void * const qemu_ld_helpers[4] = { |
| __ldb_mmu, |
| __ldw_mmu, |
| __ldl_mmu, |
| __ldq_mmu, |
| }; |
| |
| static const void * const qemu_st_helpers[4] = { |
| __stb_mmu, |
| __stw_mmu, |
| __stl_mmu, |
| __stq_mmu, |
| }; |
| #endif |
| |
| #if TARGET_LONG_BITS == 32 |
| #define TARGET_LD_OP LDUW |
| #else |
| #define TARGET_LD_OP LDX |
| #endif |
| |
| #if TARGET_PHYS_ADDR_BITS == 32 |
| #define TARGET_ADDEND_LD_OP LDUW |
| #else |
| #define TARGET_ADDEND_LD_OP LDX |
| #endif |
| |
| #ifdef __arch64__ |
| #define HOST_LD_OP LDX |
| #define HOST_ST_OP STX |
| #define HOST_SLL_OP SHIFT_SLLX |
| #define HOST_SRA_OP SHIFT_SRAX |
| #else |
| #define HOST_LD_OP LDUW |
| #define HOST_ST_OP STW |
| #define HOST_SLL_OP SHIFT_SLL |
| #define HOST_SRA_OP SHIFT_SRA |
| #endif |
| |
| static void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args, |
| int opc) |
| { |
| int addr_reg, data_reg, arg0, arg1, arg2, mem_index, s_bits; |
| #if defined(CONFIG_SOFTMMU) |
| uint32_t *label1_ptr, *label2_ptr; |
| #endif |
| |
| data_reg = *args++; |
| addr_reg = *args++; |
| mem_index = *args; |
| s_bits = opc & 3; |
| |
| arg0 = TCG_REG_O0; |
| arg1 = TCG_REG_O1; |
| arg2 = TCG_REG_O2; |
| |
| #if defined(CONFIG_SOFTMMU) |
| /* srl addr_reg, x, arg1 */ |
| tcg_out_arithi(s, arg1, addr_reg, TARGET_PAGE_BITS - CPU_TLB_ENTRY_BITS, |
| SHIFT_SRL); |
| /* and addr_reg, x, arg0 */ |
| tcg_out_arithi(s, arg0, addr_reg, TARGET_PAGE_MASK | ((1 << s_bits) - 1), |
| ARITH_AND); |
| |
| /* and arg1, x, arg1 */ |
| tcg_out_andi(s, arg1, (CPU_TLB_SIZE - 1) << CPU_TLB_ENTRY_BITS); |
| |
| /* add arg1, x, arg1 */ |
| tcg_out_addi(s, arg1, offsetof(CPUState, |
| tlb_table[mem_index][0].addr_read)); |
| |
| /* add env, arg1, arg1 */ |
| tcg_out_arith(s, arg1, TCG_AREG0, arg1, ARITH_ADD); |
| |
| /* ld [arg1], arg2 */ |
| tcg_out32(s, TARGET_LD_OP | INSN_RD(arg2) | INSN_RS1(arg1) | |
| INSN_RS2(TCG_REG_G0)); |
| |
| /* subcc arg0, arg2, %g0 */ |
| tcg_out_arith(s, TCG_REG_G0, arg0, arg2, ARITH_SUBCC); |
| |
| /* will become: |
| be label1 |
| or |
| be,pt %xcc label1 */ |
| label1_ptr = (uint32_t *)s->code_ptr; |
| tcg_out32(s, 0); |
| |
| /* mov (delay slot) */ |
| tcg_out_mov(s, arg0, addr_reg); |
| |
| /* mov */ |
| tcg_out_movi(s, TCG_TYPE_I32, arg1, mem_index); |
| |
| /* XXX: move that code at the end of the TB */ |
| /* qemu_ld_helper[s_bits](arg0, arg1) */ |
| tcg_out32(s, CALL | ((((tcg_target_ulong)qemu_ld_helpers[s_bits] |
| - (tcg_target_ulong)s->code_ptr) >> 2) |
| & 0x3fffffff)); |
| /* Store AREG0 in stack to avoid ugly glibc bugs that mangle |
| global registers */ |
| // delay slot |
| tcg_out_ldst(s, TCG_AREG0, TCG_REG_CALL_STACK, |
| TCG_TARGET_CALL_STACK_OFFSET - TCG_STATIC_CALL_ARGS_SIZE - |
| sizeof(long), HOST_ST_OP); |
| tcg_out_ldst(s, TCG_AREG0, TCG_REG_CALL_STACK, |
| TCG_TARGET_CALL_STACK_OFFSET - TCG_STATIC_CALL_ARGS_SIZE - |
| sizeof(long), HOST_LD_OP); |
| |
| /* data_reg = sign_extend(arg0) */ |
| switch(opc) { |
| case 0 | 4: |
| /* sll arg0, 24/56, data_reg */ |
| tcg_out_arithi(s, data_reg, arg0, (int)sizeof(tcg_target_long) * 8 - 8, |
| HOST_SLL_OP); |
| /* sra data_reg, 24/56, data_reg */ |
| tcg_out_arithi(s, data_reg, data_reg, |
| (int)sizeof(tcg_target_long) * 8 - 8, HOST_SRA_OP); |
| break; |
| case 1 | 4: |
| /* sll arg0, 16/48, data_reg */ |
| tcg_out_arithi(s, data_reg, arg0, |
| (int)sizeof(tcg_target_long) * 8 - 16, HOST_SLL_OP); |
| /* sra data_reg, 16/48, data_reg */ |
| tcg_out_arithi(s, data_reg, data_reg, |
| (int)sizeof(tcg_target_long) * 8 - 16, HOST_SRA_OP); |
| break; |
| case 2 | 4: |
| /* sll arg0, 32, data_reg */ |
| tcg_out_arithi(s, data_reg, arg0, 32, HOST_SLL_OP); |
| /* sra data_reg, 32, data_reg */ |
| tcg_out_arithi(s, data_reg, data_reg, 32, HOST_SRA_OP); |
| break; |
| case 0: |
| case 1: |
| case 2: |
| case 3: |
| default: |
| /* mov */ |
| tcg_out_mov(s, data_reg, arg0); |
| break; |
| } |
| |
| /* will become: |
| ba label2 */ |
| label2_ptr = (uint32_t *)s->code_ptr; |
| tcg_out32(s, 0); |
| |
| /* nop (delay slot */ |
| tcg_out_nop(s); |
| |
| /* label1: */ |
| #if TARGET_LONG_BITS == 32 |
| /* be label1 */ |
| *label1_ptr = (INSN_OP(0) | INSN_COND(COND_E, 0) | INSN_OP2(0x2) | |
| INSN_OFF22((unsigned long)s->code_ptr - |
| (unsigned long)label1_ptr)); |
| #else |
| /* be,pt %xcc label1 */ |
| *label1_ptr = (INSN_OP(0) | INSN_COND(COND_E, 0) | INSN_OP2(0x1) | |
| (0x5 << 19) | INSN_OFF19((unsigned long)s->code_ptr - |
| (unsigned long)label1_ptr)); |
| #endif |
| |
| /* ld [arg1 + x], arg1 */ |
| tcg_out_ldst(s, arg1, arg1, offsetof(CPUTLBEntry, addend) - |
| offsetof(CPUTLBEntry, addr_read), TARGET_ADDEND_LD_OP); |
| |
| #if TARGET_LONG_BITS == 32 |
| /* and addr_reg, x, arg0 */ |
| tcg_out_movi(s, TCG_TYPE_I32, TCG_REG_I5, 0xffffffff); |
| tcg_out_arith(s, arg0, addr_reg, TCG_REG_I5, ARITH_AND); |
| /* add arg0, arg1, arg0 */ |
| tcg_out_arith(s, arg0, arg0, arg1, ARITH_ADD); |
| #else |
| /* add addr_reg, arg1, arg0 */ |
| tcg_out_arith(s, arg0, addr_reg, arg1, ARITH_ADD); |
| #endif |
| |
| #else |
| arg0 = addr_reg; |
| #endif |
| |
| switch(opc) { |
| case 0: |
| /* ldub [arg0], data_reg */ |
| tcg_out_ldst(s, data_reg, arg0, 0, LDUB); |
| break; |
| case 0 | 4: |
| /* ldsb [arg0], data_reg */ |
| tcg_out_ldst(s, data_reg, arg0, 0, LDSB); |
| break; |
| case 1: |
| #ifdef TARGET_WORDS_BIGENDIAN |
| /* lduh [arg0], data_reg */ |
| tcg_out_ldst(s, data_reg, arg0, 0, LDUH); |
| #else |
| /* lduha [arg0] ASI_PRIMARY_LITTLE, data_reg */ |
| tcg_out_ldst_asi(s, data_reg, arg0, 0, LDUHA, ASI_PRIMARY_LITTLE); |
| #endif |
| break; |
| case 1 | 4: |
| #ifdef TARGET_WORDS_BIGENDIAN |
| /* ldsh [arg0], data_reg */ |
| tcg_out_ldst(s, data_reg, arg0, 0, LDSH); |
| #else |
| /* ldsha [arg0] ASI_PRIMARY_LITTLE, data_reg */ |
| tcg_out_ldst_asi(s, data_reg, arg0, 0, LDSHA, ASI_PRIMARY_LITTLE); |
| #endif |
| break; |
| case 2: |
| #ifdef TARGET_WORDS_BIGENDIAN |
| /* lduw [arg0], data_reg */ |
| tcg_out_ldst(s, data_reg, arg0, 0, LDUW); |
| #else |
| /* lduwa [arg0] ASI_PRIMARY_LITTLE, data_reg */ |
| tcg_out_ldst_asi(s, data_reg, arg0, 0, LDUWA, ASI_PRIMARY_LITTLE); |
| #endif |
| break; |
| case 2 | 4: |
| #ifdef TARGET_WORDS_BIGENDIAN |
| /* ldsw [arg0], data_reg */ |
| tcg_out_ldst(s, data_reg, arg0, 0, LDSW); |
| #else |
| /* ldswa [arg0] ASI_PRIMARY_LITTLE, data_reg */ |
| tcg_out_ldst_asi(s, data_reg, arg0, 0, LDSWA, ASI_PRIMARY_LITTLE); |
| #endif |
| break; |
| case 3: |
| #ifdef TARGET_WORDS_BIGENDIAN |
| /* ldx [arg0], data_reg */ |
| tcg_out_ldst(s, data_reg, arg0, 0, LDX); |
| #else |
| /* ldxa [arg0] ASI_PRIMARY_LITTLE, data_reg */ |
| tcg_out_ldst_asi(s, data_reg, arg0, 0, LDXA, ASI_PRIMARY_LITTLE); |
| #endif |
| break; |
| default: |
| tcg_abort(); |
| } |
| |
| #if defined(CONFIG_SOFTMMU) |
| /* label2: */ |
| *label2_ptr = (INSN_OP(0) | INSN_COND(COND_A, 0) | INSN_OP2(0x2) | |
| INSN_OFF22((unsigned long)s->code_ptr - |
| (unsigned long)label2_ptr)); |
| #endif |
| } |
| |
| static void tcg_out_qemu_st(TCGContext *s, const TCGArg *args, |
| int opc) |
| { |
| int addr_reg, data_reg, arg0, arg1, arg2, mem_index, s_bits; |
| #if defined(CONFIG_SOFTMMU) |
| uint32_t *label1_ptr, *label2_ptr; |
| #endif |
| |
| data_reg = *args++; |
| addr_reg = *args++; |
| mem_index = *args; |
| |
| s_bits = opc; |
| |
| arg0 = TCG_REG_O0; |
| arg1 = TCG_REG_O1; |
| arg2 = TCG_REG_O2; |
| |
| #if defined(CONFIG_SOFTMMU) |
| /* srl addr_reg, x, arg1 */ |
| tcg_out_arithi(s, arg1, addr_reg, TARGET_PAGE_BITS - CPU_TLB_ENTRY_BITS, |
| SHIFT_SRL); |
| |
| /* and addr_reg, x, arg0 */ |
| tcg_out_arithi(s, arg0, addr_reg, TARGET_PAGE_MASK | ((1 << s_bits) - 1), |
| ARITH_AND); |
| |
| /* and arg1, x, arg1 */ |
| tcg_out_andi(s, arg1, (CPU_TLB_SIZE - 1) << CPU_TLB_ENTRY_BITS); |
| |
| /* add arg1, x, arg1 */ |
| tcg_out_addi(s, arg1, offsetof(CPUState, |
| tlb_table[mem_index][0].addr_write)); |
| |
| /* add env, arg1, arg1 */ |
| tcg_out_arith(s, arg1, TCG_AREG0, arg1, ARITH_ADD); |
| |
| /* ld [arg1], arg2 */ |
| tcg_out32(s, TARGET_LD_OP | INSN_RD(arg2) | INSN_RS1(arg1) | |
| INSN_RS2(TCG_REG_G0)); |
| |
| /* subcc arg0, arg2, %g0 */ |
| tcg_out_arith(s, TCG_REG_G0, arg0, arg2, ARITH_SUBCC); |
| |
| /* will become: |
| be label1 |
| or |
| be,pt %xcc label1 */ |
| label1_ptr = (uint32_t *)s->code_ptr; |
| tcg_out32(s, 0); |
| |
| /* mov (delay slot) */ |
| tcg_out_mov(s, arg0, addr_reg); |
| |
| /* mov */ |
| tcg_out_mov(s, arg1, data_reg); |
| |
| /* mov */ |
| tcg_out_movi(s, TCG_TYPE_I32, arg2, mem_index); |
| |
| /* XXX: move that code at the end of the TB */ |
| /* qemu_st_helper[s_bits](arg0, arg1, arg2) */ |
| tcg_out32(s, CALL | ((((tcg_target_ulong)qemu_st_helpers[s_bits] |
| - (tcg_target_ulong)s->code_ptr) >> 2) |
| & 0x3fffffff)); |
| /* Store AREG0 in stack to avoid ugly glibc bugs that mangle |
| global registers */ |
| // delay slot |
| tcg_out_ldst(s, TCG_AREG0, TCG_REG_CALL_STACK, |
| TCG_TARGET_CALL_STACK_OFFSET - TCG_STATIC_CALL_ARGS_SIZE - |
| sizeof(long), HOST_ST_OP); |
| tcg_out_ldst(s, TCG_AREG0, TCG_REG_CALL_STACK, |
| TCG_TARGET_CALL_STACK_OFFSET - TCG_STATIC_CALL_ARGS_SIZE - |
| sizeof(long), HOST_LD_OP); |
| |
| /* will become: |
| ba label2 */ |
| label2_ptr = (uint32_t *)s->code_ptr; |
| tcg_out32(s, 0); |
| |
| /* nop (delay slot) */ |
| tcg_out_nop(s); |
| |
| #if TARGET_LONG_BITS == 32 |
| /* be label1 */ |
| *label1_ptr = (INSN_OP(0) | INSN_COND(COND_E, 0) | INSN_OP2(0x2) | |
| INSN_OFF22((unsigned long)s->code_ptr - |
| (unsigned long)label1_ptr)); |
| #else |
| /* be,pt %xcc label1 */ |
| *label1_ptr = (INSN_OP(0) | INSN_COND(COND_E, 0) | INSN_OP2(0x1) | |
| (0x5 << 19) | INSN_OFF19((unsigned long)s->code_ptr - |
| (unsigned long)label1_ptr)); |
| #endif |
| |
| /* ld [arg1 + x], arg1 */ |
| tcg_out_ldst(s, arg1, arg1, offsetof(CPUTLBEntry, addend) - |
| offsetof(CPUTLBEntry, addr_write), TARGET_ADDEND_LD_OP); |
| |
| #if TARGET_LONG_BITS == 32 |
| /* and addr_reg, x, arg0 */ |
| tcg_out_movi(s, TCG_TYPE_I32, TCG_REG_I5, 0xffffffff); |
| tcg_out_arith(s, arg0, addr_reg, TCG_REG_I5, ARITH_AND); |
| /* add arg0, arg1, arg0 */ |
| tcg_out_arith(s, arg0, arg0, arg1, ARITH_ADD); |
| #else |
| /* add addr_reg, arg1, arg0 */ |
| tcg_out_arith(s, arg0, addr_reg, arg1, ARITH_ADD); |
| #endif |
| |
| #else |
| arg0 = addr_reg; |
| #endif |
| |
| switch(opc) { |
| case 0: |
| /* stb data_reg, [arg0] */ |
| tcg_out_ldst(s, data_reg, arg0, 0, STB); |
| break; |
| case 1: |
| #ifdef TARGET_WORDS_BIGENDIAN |
| /* sth data_reg, [arg0] */ |
| tcg_out_ldst(s, data_reg, arg0, 0, STH); |
| #else |
| /* stha data_reg, [arg0] ASI_PRIMARY_LITTLE */ |
| tcg_out_ldst_asi(s, data_reg, arg0, 0, STHA, ASI_PRIMARY_LITTLE); |
| #endif |
| break; |
| case 2: |
| #ifdef TARGET_WORDS_BIGENDIAN |
| /* stw data_reg, [arg0] */ |
| tcg_out_ldst(s, data_reg, arg0, 0, STW); |
| #else |
| /* stwa data_reg, [arg0] ASI_PRIMARY_LITTLE */ |
| tcg_out_ldst_asi(s, data_reg, arg0, 0, STWA, ASI_PRIMARY_LITTLE); |
| #endif |
| break; |
| case 3: |
| #ifdef TARGET_WORDS_BIGENDIAN |
| /* stx data_reg, [arg0] */ |
| tcg_out_ldst(s, data_reg, arg0, 0, STX); |
| #else |
| /* stxa data_reg, [arg0] ASI_PRIMARY_LITTLE */ |
| tcg_out_ldst_asi(s, data_reg, arg0, 0, STXA, ASI_PRIMARY_LITTLE); |
| #endif |
| break; |
| default: |
| tcg_abort(); |
| } |
| |
| #if defined(CONFIG_SOFTMMU) |
| /* label2: */ |
| *label2_ptr = (INSN_OP(0) | INSN_COND(COND_A, 0) | INSN_OP2(0x2) | |
| INSN_OFF22((unsigned long)s->code_ptr - |
| (unsigned long)label2_ptr)); |
| #endif |
| } |
| |
| static inline void tcg_out_op(TCGContext *s, int opc, const TCGArg *args, |
| const int *const_args) |
| { |
| int c; |
| |
| switch (opc) { |
| case INDEX_op_exit_tb: |
| tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_I0, args[0]); |
| tcg_out32(s, JMPL | INSN_RD(TCG_REG_G0) | INSN_RS1(TCG_REG_I7) | |
| INSN_IMM13(8)); |
| tcg_out32(s, RESTORE | INSN_RD(TCG_REG_G0) | INSN_RS1(TCG_REG_G0) | |
| INSN_RS2(TCG_REG_G0)); |
| break; |
| case INDEX_op_goto_tb: |
| if (s->tb_jmp_offset) { |
| /* direct jump method */ |
| tcg_out_sethi(s, TCG_REG_I5, args[0] & 0xffffe000); |
| tcg_out32(s, JMPL | INSN_RD(TCG_REG_G0) | INSN_RS1(TCG_REG_I5) | |
| INSN_IMM13((args[0] & 0x1fff))); |
| s->tb_jmp_offset[args[0]] = s->code_ptr - s->code_buf; |
| } else { |
| /* indirect jump method */ |
| tcg_out_ld_ptr(s, TCG_REG_I5, (tcg_target_long)(s->tb_next + args[0])); |
| tcg_out32(s, JMPL | INSN_RD(TCG_REG_G0) | INSN_RS1(TCG_REG_I5) | |
| INSN_RS2(TCG_REG_G0)); |
| } |
| tcg_out_nop(s); |
| s->tb_next_offset[args[0]] = s->code_ptr - s->code_buf; |
| break; |
| case INDEX_op_call: |
| if (const_args[0]) |
| tcg_out32(s, CALL | ((((tcg_target_ulong)args[0] |
| - (tcg_target_ulong)s->code_ptr) >> 2) |
| & 0x3fffffff)); |
| else { |
| tcg_out_ld_ptr(s, TCG_REG_I5, |
| (tcg_target_long)(s->tb_next + args[0])); |
| tcg_out32(s, JMPL | INSN_RD(TCG_REG_O7) | INSN_RS1(TCG_REG_I5) | |
| INSN_RS2(TCG_REG_G0)); |
| } |
| /* Store AREG0 in stack to avoid ugly glibc bugs that mangle |
| global registers */ |
| // delay slot |
| tcg_out_ldst(s, TCG_AREG0, TCG_REG_CALL_STACK, |
| TCG_TARGET_CALL_STACK_OFFSET - TCG_STATIC_CALL_ARGS_SIZE - |
| sizeof(long), HOST_ST_OP); |
| tcg_out_ldst(s, TCG_AREG0, TCG_REG_CALL_STACK, |
| TCG_TARGET_CALL_STACK_OFFSET - TCG_STATIC_CALL_ARGS_SIZE - |
| sizeof(long), HOST_LD_OP); |
| break; |
| case INDEX_op_jmp: |
| case INDEX_op_br: |
| tcg_out_branch_i32(s, COND_A, args[0]); |
| tcg_out_nop(s); |
| break; |
| case INDEX_op_movi_i32: |
| tcg_out_movi(s, TCG_TYPE_I32, args[0], (uint32_t)args[1]); |
| break; |
| |
| #if TCG_TARGET_REG_BITS == 64 |
| #define OP_32_64(x) \ |
| glue(glue(case INDEX_op_, x), _i32): \ |
| glue(glue(case INDEX_op_, x), _i64) |
| #else |
| #define OP_32_64(x) \ |
| glue(glue(case INDEX_op_, x), _i32) |
| #endif |
| OP_32_64(ld8u): |
| tcg_out_ldst(s, args[0], args[1], args[2], LDUB); |
| break; |
| OP_32_64(ld8s): |
| tcg_out_ldst(s, args[0], args[1], args[2], LDSB); |
| break; |
| OP_32_64(ld16u): |
| tcg_out_ldst(s, args[0], args[1], args[2], LDUH); |
| break; |
| OP_32_64(ld16s): |
| tcg_out_ldst(s, args[0], args[1], args[2], LDSH); |
| break; |
| case INDEX_op_ld_i32: |
| #if TCG_TARGET_REG_BITS == 64 |
| case INDEX_op_ld32u_i64: |
| #endif |
| tcg_out_ldst(s, args[0], args[1], args[2], LDUW); |
| break; |
| OP_32_64(st8): |
| tcg_out_ldst(s, args[0], args[1], args[2], STB); |
| break; |
| OP_32_64(st16): |
| tcg_out_ldst(s, args[0], args[1], args[2], STH); |
| break; |
| case INDEX_op_st_i32: |
| #if TCG_TARGET_REG_BITS == 64 |
| case INDEX_op_st32_i64: |
| #endif |
| tcg_out_ldst(s, args[0], args[1], args[2], STW); |
| break; |
| OP_32_64(add): |
| c = ARITH_ADD; |
| goto gen_arith; |
| OP_32_64(sub): |
| c = ARITH_SUB; |
| goto gen_arith; |
| OP_32_64(and): |
| c = ARITH_AND; |
| goto gen_arith; |
| OP_32_64(andc): |
| c = ARITH_ANDN; |
| goto gen_arith; |
| OP_32_64(or): |
| c = ARITH_OR; |
| goto gen_arith; |
| OP_32_64(orc): |
| c = ARITH_ORN; |
| goto gen_arith; |
| OP_32_64(xor): |
| c = ARITH_XOR; |
| goto gen_arith; |
| case INDEX_op_shl_i32: |
| c = SHIFT_SLL; |
| goto gen_arith; |
| case INDEX_op_shr_i32: |
| c = SHIFT_SRL; |
| goto gen_arith; |
| case INDEX_op_sar_i32: |
| c = SHIFT_SRA; |
| goto gen_arith; |
| case INDEX_op_mul_i32: |
| c = ARITH_UMUL; |
| goto gen_arith; |
| |
| OP_32_64(neg): |
| c = ARITH_SUB; |
| goto gen_arith1; |
| OP_32_64(not): |
| c = ARITH_ORN; |
| goto gen_arith1; |
| |
| case INDEX_op_div_i32: |
| tcg_out_div32(s, args[0], args[1], args[2], const_args[2], 0); |
| break; |
| case INDEX_op_divu_i32: |
| tcg_out_div32(s, args[0], args[1], args[2], const_args[2], 1); |
| break; |
| |
| case INDEX_op_rem_i32: |
| case INDEX_op_remu_i32: |
| tcg_out_div32(s, TCG_REG_I5, args[1], args[2], const_args[2], |
| opc == INDEX_op_remu_i32); |
| tcg_out_arithc(s, TCG_REG_I5, TCG_REG_I5, args[2], const_args[2], |
| ARITH_UMUL); |
| tcg_out_arith(s, args[0], args[1], TCG_REG_I5, ARITH_SUB); |
| break; |
| |
| case INDEX_op_brcond_i32: |
| tcg_out_brcond_i32(s, args[2], args[0], args[1], const_args[1], |
| args[3]); |
| break; |
| case INDEX_op_setcond_i32: |
| tcg_out_setcond_i32(s, args[3], args[0], args[1], |
| args[2], const_args[2]); |
| break; |
| |
| #if TCG_TARGET_REG_BITS == 32 |
| case INDEX_op_brcond2_i32: |
| tcg_out_brcond2_i32(s, args[4], args[0], args[1], |
| args[2], const_args[2], |
| args[3], const_args[3], args[5]); |
| break; |
| case INDEX_op_setcond2_i32: |
| tcg_out_setcond2_i32(s, args[5], args[0], args[1], args[2], |
| args[3], const_args[3], |
| args[4], const_args[4]); |
| break; |
| case INDEX_op_add2_i32: |
| tcg_out_arithc(s, args[0], args[2], args[4], const_args[4], |
| ARITH_ADDCC); |
| tcg_out_arithc(s, args[1], args[3], args[5], const_args[5], |
| ARITH_ADDX); |
| break; |
| case INDEX_op_sub2_i32: |
| tcg_out_arithc(s, args[0], args[2], args[4], const_args[4], |
| ARITH_SUBCC); |
| tcg_out_arithc(s, args[1], args[3], args[5], const_args[5], |
| ARITH_SUBX); |
| break; |
| case INDEX_op_mulu2_i32: |
| tcg_out_arithc(s, args[0], args[2], args[3], const_args[3], |
| ARITH_UMUL); |
| tcg_out_rdy(s, args[1]); |
| break; |
| #endif |
| |
| case INDEX_op_qemu_ld8u: |
| tcg_out_qemu_ld(s, args, 0); |
| break; |
| case INDEX_op_qemu_ld8s: |
| tcg_out_qemu_ld(s, args, 0 | 4); |
| break; |
| case INDEX_op_qemu_ld16u: |
| tcg_out_qemu_ld(s, args, 1); |
| break; |
| case INDEX_op_qemu_ld16s: |
| tcg_out_qemu_ld(s, args, 1 | 4); |
| break; |
| case INDEX_op_qemu_ld32u: |
| tcg_out_qemu_ld(s, args, 2); |
| break; |
| #if TCG_TARGET_REG_BITS == 64 |
| case INDEX_op_qemu_ld32s: |
| tcg_out_qemu_ld(s, args, 2 | 4); |
| break; |
| #endif |
| case INDEX_op_qemu_st8: |
| tcg_out_qemu_st(s, args, 0); |
| break; |
| case INDEX_op_qemu_st16: |
| tcg_out_qemu_st(s, args, 1); |
| break; |
| case INDEX_op_qemu_st32: |
| tcg_out_qemu_st(s, args, 2); |
| break; |
| |
| #if TCG_TARGET_REG_BITS == 64 |
| case INDEX_op_movi_i64: |
| tcg_out_movi(s, TCG_TYPE_I64, args[0], args[1]); |
| break; |
| case INDEX_op_ld32s_i64: |
| tcg_out_ldst(s, args[0], args[1], args[2], LDSW); |
| break; |
| case INDEX_op_ld_i64: |
| tcg_out_ldst(s, args[0], args[1], args[2], LDX); |
| break; |
| case INDEX_op_st_i64: |
| tcg_out_ldst(s, args[0], args[1], args[2], STX); |
| break; |
| case INDEX_op_shl_i64: |
| c = SHIFT_SLLX; |
| goto gen_arith; |
| case INDEX_op_shr_i64: |
| c = SHIFT_SRLX; |
| goto gen_arith; |
| case INDEX_op_sar_i64: |
| c = SHIFT_SRAX; |
| goto gen_arith; |
| case INDEX_op_mul_i64: |
| c = ARITH_MULX; |
| goto gen_arith; |
| case INDEX_op_div_i64: |
| c = ARITH_SDIVX; |
| goto gen_arith; |
| case INDEX_op_divu_i64: |
| c = ARITH_UDIVX; |
| goto gen_arith; |
| case INDEX_op_rem_i64: |
| case INDEX_op_remu_i64: |
| tcg_out_arithc(s, TCG_REG_I5, args[1], args[2], const_args[2], |
| opc == INDEX_op_rem_i64 ? ARITH_SDIVX : ARITH_UDIVX); |
| tcg_out_arithc(s, TCG_REG_I5, TCG_REG_I5, args[2], const_args[2], |
| ARITH_MULX); |
| tcg_out_arith(s, args[0], args[1], TCG_REG_I5, ARITH_SUB); |
| break; |
| case INDEX_op_ext32s_i64: |
| if (const_args[1]) { |
| tcg_out_movi(s, TCG_TYPE_I64, args[0], (int32_t)args[1]); |
| } else { |
| tcg_out_arithi(s, args[0], args[1], 0, SHIFT_SRA); |
| } |
| break; |
| case INDEX_op_ext32u_i64: |
| if (const_args[1]) { |
| tcg_out_movi_imm32(s, args[0], args[1]); |
| } else { |
| tcg_out_arithi(s, args[0], args[1], 0, SHIFT_SRL); |
| } |
| break; |
| |
| case INDEX_op_brcond_i64: |
| tcg_out_brcond_i64(s, args[2], args[0], args[1], const_args[1], |
| args[3]); |
| break; |
| case INDEX_op_setcond_i64: |
| tcg_out_setcond_i64(s, args[3], args[0], args[1], |
| args[2], const_args[2]); |
| break; |
| |
| case INDEX_op_qemu_ld64: |
| tcg_out_qemu_ld(s, args, 3); |
| break; |
| case INDEX_op_qemu_st64: |
| tcg_out_qemu_st(s, args, 3); |
| break; |
| |
| #endif |
| gen_arith: |
| tcg_out_arithc(s, args[0], args[1], args[2], const_args[2], c); |
| break; |
| |
| gen_arith1: |
| tcg_out_arithc(s, args[0], TCG_REG_G0, args[1], const_args[1], c); |
| break; |
| |
| default: |
| fprintf(stderr, "unknown opcode 0x%x\n", opc); |
| tcg_abort(); |
| } |
| } |
| |
| static const TCGTargetOpDef sparc_op_defs[] = { |
| { INDEX_op_exit_tb, { } }, |
| { INDEX_op_goto_tb, { } }, |
| { INDEX_op_call, { "ri" } }, |
| { INDEX_op_jmp, { "ri" } }, |
| { INDEX_op_br, { } }, |
| |
| { INDEX_op_mov_i32, { "r", "r" } }, |
| { INDEX_op_movi_i32, { "r" } }, |
| { INDEX_op_ld8u_i32, { "r", "r" } }, |
| { INDEX_op_ld8s_i32, { "r", "r" } }, |
| { INDEX_op_ld16u_i32, { "r", "r" } }, |
| { INDEX_op_ld16s_i32, { "r", "r" } }, |
| { INDEX_op_ld_i32, { "r", "r" } }, |
| { INDEX_op_st8_i32, { "r", "r" } }, |
| { INDEX_op_st16_i32, { "r", "r" } }, |
| { INDEX_op_st_i32, { "r", "r" } }, |
| |
| { INDEX_op_add_i32, { "r", "r", "rJ" } }, |
| { INDEX_op_mul_i32, { "r", "r", "rJ" } }, |
| { INDEX_op_div_i32, { "r", "r", "rJ" } }, |
| { INDEX_op_divu_i32, { "r", "r", "rJ" } }, |
| { INDEX_op_rem_i32, { "r", "r", "rJ" } }, |
| { INDEX_op_remu_i32, { "r", "r", "rJ" } }, |
| { INDEX_op_sub_i32, { "r", "r", "rJ" } }, |
| { INDEX_op_and_i32, { "r", "r", "rJ" } }, |
| { INDEX_op_andc_i32, { "r", "r", "rJ" } }, |
| { INDEX_op_or_i32, { "r", "r", "rJ" } }, |
| { INDEX_op_orc_i32, { "r", "r", "rJ" } }, |
| { INDEX_op_xor_i32, { "r", "r", "rJ" } }, |
| |
| { INDEX_op_shl_i32, { "r", "r", "rJ" } }, |
| { INDEX_op_shr_i32, { "r", "r", "rJ" } }, |
| { INDEX_op_sar_i32, { "r", "r", "rJ" } }, |
| |
| { INDEX_op_neg_i32, { "r", "rJ" } }, |
| { INDEX_op_not_i32, { "r", "rJ" } }, |
| |
| { INDEX_op_brcond_i32, { "r", "rJ" } }, |
| { INDEX_op_setcond_i32, { "r", "r", "rJ" } }, |
| |
| #if TCG_TARGET_REG_BITS == 32 |
| { INDEX_op_brcond2_i32, { "r", "r", "rJ", "rJ" } }, |
| { INDEX_op_setcond2_i32, { "r", "r", "r", "rJ", "rJ" } }, |
| { INDEX_op_add2_i32, { "r", "r", "r", "r", "rJ", "rJ" } }, |
| { INDEX_op_sub2_i32, { "r", "r", "r", "r", "rJ", "rJ" } }, |
| { INDEX_op_mulu2_i32, { "r", "r", "r", "rJ" } }, |
| #endif |
| |
| { INDEX_op_qemu_ld8u, { "r", "L" } }, |
| { INDEX_op_qemu_ld8s, { "r", "L" } }, |
| { INDEX_op_qemu_ld16u, { "r", "L" } }, |
| { INDEX_op_qemu_ld16s, { "r", "L" } }, |
| { INDEX_op_qemu_ld32u, { "r", "L" } }, |
| #if TCG_TARGET_REG_BITS == 64 |
| { INDEX_op_qemu_ld32s, { "r", "L" } }, |
| #endif |
| |
| { INDEX_op_qemu_st8, { "L", "L" } }, |
| { INDEX_op_qemu_st16, { "L", "L" } }, |
| { INDEX_op_qemu_st32, { "L", "L" } }, |
| |
| #if TCG_TARGET_REG_BITS == 64 |
| { INDEX_op_mov_i64, { "r", "r" } }, |
| { INDEX_op_movi_i64, { "r" } }, |
| { INDEX_op_ld8u_i64, { "r", "r" } }, |
| { INDEX_op_ld8s_i64, { "r", "r" } }, |
| { INDEX_op_ld16u_i64, { "r", "r" } }, |
| { INDEX_op_ld16s_i64, { "r", "r" } }, |
| { INDEX_op_ld32u_i64, { "r", "r" } }, |
| { INDEX_op_ld32s_i64, { "r", "r" } }, |
| { INDEX_op_ld_i64, { "r", "r" } }, |
| { INDEX_op_st8_i64, { "r", "r" } }, |
| { INDEX_op_st16_i64, { "r", "r" } }, |
| { INDEX_op_st32_i64, { "r", "r" } }, |
| { INDEX_op_st_i64, { "r", "r" } }, |
| { INDEX_op_qemu_ld64, { "L", "L" } }, |
| { INDEX_op_qemu_st64, { "L", "L" } }, |
| |
| { INDEX_op_add_i64, { "r", "r", "rJ" } }, |
| { INDEX_op_mul_i64, { "r", "r", "rJ" } }, |
| { INDEX_op_div_i64, { "r", "r", "rJ" } }, |
| { INDEX_op_divu_i64, { "r", "r", "rJ" } }, |
| { INDEX_op_rem_i64, { "r", "r", "rJ" } }, |
| { INDEX_op_remu_i64, { "r", "r", "rJ" } }, |
| { INDEX_op_sub_i64, { "r", "r", "rJ" } }, |
| { INDEX_op_and_i64, { "r", "r", "rJ" } }, |
| { INDEX_op_andc_i64, { "r", "r", "rJ" } }, |
| { INDEX_op_or_i64, { "r", "r", "rJ" } }, |
| { INDEX_op_orc_i64, { "r", "r", "rJ" } }, |
| { INDEX_op_xor_i64, { "r", "r", "rJ" } }, |
| |
| { INDEX_op_shl_i64, { "r", "r", "rJ" } }, |
| { INDEX_op_shr_i64, { "r", "r", "rJ" } }, |
| { INDEX_op_sar_i64, { "r", "r", "rJ" } }, |
| |
| { INDEX_op_neg_i64, { "r", "rJ" } }, |
| { INDEX_op_not_i64, { "r", "rJ" } }, |
| |
| { INDEX_op_ext32s_i64, { "r", "ri" } }, |
| { INDEX_op_ext32u_i64, { "r", "ri" } }, |
| |
| { INDEX_op_brcond_i64, { "r", "rJ" } }, |
| { INDEX_op_setcond_i64, { "r", "r", "rJ" } }, |
| #endif |
| { -1 }, |
| }; |
| |
| void tcg_target_init(TCGContext *s) |
| { |
| tcg_regset_set32(tcg_target_available_regs[TCG_TYPE_I32], 0, 0xffffffff); |
| #if TCG_TARGET_REG_BITS == 64 |
| tcg_regset_set32(tcg_target_available_regs[TCG_TYPE_I64], 0, 0xffffffff); |
| #endif |
| tcg_regset_set32(tcg_target_call_clobber_regs, 0, |
| (1 << TCG_REG_G1) | |
| (1 << TCG_REG_G2) | |
| (1 << TCG_REG_G3) | |
| (1 << TCG_REG_G4) | |
| (1 << TCG_REG_G5) | |
| (1 << TCG_REG_G6) | |
| (1 << TCG_REG_G7) | |
| (1 << TCG_REG_O0) | |
| (1 << TCG_REG_O1) | |
| (1 << TCG_REG_O2) | |
| (1 << TCG_REG_O3) | |
| (1 << TCG_REG_O4) | |
| (1 << TCG_REG_O5) | |
| (1 << TCG_REG_O7)); |
| |
| tcg_regset_clear(s->reserved_regs); |
| tcg_regset_set_reg(s->reserved_regs, TCG_REG_G0); |
| #if TCG_TARGET_REG_BITS == 64 |
| tcg_regset_set_reg(s->reserved_regs, TCG_REG_I4); // for internal use |
| #endif |
| tcg_regset_set_reg(s->reserved_regs, TCG_REG_I5); // for internal use |
| tcg_regset_set_reg(s->reserved_regs, TCG_REG_I6); |
| tcg_regset_set_reg(s->reserved_regs, TCG_REG_I7); |
| tcg_regset_set_reg(s->reserved_regs, TCG_REG_O6); |
| tcg_regset_set_reg(s->reserved_regs, TCG_REG_O7); |
| tcg_add_target_add_op_defs(sparc_op_defs); |
| } |
