commit 5d5094516693e70d856ea4546626c29aaa4b4cd1
author Richard Henderson <richard.henderson@linaro.org> Fri Feb 24 20:25:02 2023 -1000
committer Richard Henderson <richard.henderson@linaro.org> Sun Mar 05 13:44:08 2023 -0800
tree b433cecfe5c6a055c0449854e81191d150af2c57
parent 571f85072209f7fd6f53091c29b31b16dd8c1128

target/riscv: Drop ftemp_new

Translators are no longer required to free tcg temporaries,
therefore there's no need to record temps for later freeing.
Replace the few uses with tcg_temp_new_i64.

Reviewed-by: Weiwei Li <liweiwei@iscas.ac.cn>
Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/riscv/translate.c

diff --git a/target/riscv/translate.c b/target/riscv/translate.c
index a8d516c..7ed625a 100644
--- a/target/riscv/translate.c
+++ b/target/riscv/translate.c
@@ -106,9 +106,6 @@
     TCGv zero;
     /* Space for 3 operands plus 1 extra for address computation. */
     TCGv temp[4];
-    /* Space for 4 operands(1 dest and <=3 src) for float point computation */
-    TCGv_i64 ftemp[4];
-    uint8_t nftemp;
     /* PointerMasking extension */
     bool pm_mask_enabled;
     bool pm_base_enabled;
@@ -431,12 +428,6 @@
     }
 }
 
-static TCGv_i64 ftemp_new(DisasContext *ctx)
-{
-    assert(ctx->nftemp < ARRAY_SIZE(ctx->ftemp));
-    return ctx->ftemp[ctx->nftemp++] = tcg_temp_new_i64();
-}
-
 static TCGv_i64 get_fpr_hs(DisasContext *ctx, int reg_num)
 {
     if (!ctx->cfg_ptr->ext_zfinx) {
@@ -450,7 +441,7 @@
     case MXL_RV32:
 #ifdef TARGET_RISCV32
     {
-        TCGv_i64 t = ftemp_new(ctx);
+        TCGv_i64 t = tcg_temp_new_i64();
         tcg_gen_ext_i32_i64(t, cpu_gpr[reg_num]);
         return t;
     }
@@ -476,7 +467,7 @@
     switch (get_xl(ctx)) {
     case MXL_RV32:
     {
-        TCGv_i64 t = ftemp_new(ctx);
+        TCGv_i64 t = tcg_temp_new_i64();
         tcg_gen_concat_tl_i64(t, cpu_gpr[reg_num], cpu_gpr[reg_num + 1]);
         return t;
     }
@@ -496,12 +487,12 @@
     }
 
     if (reg_num == 0) {
-        return ftemp_new(ctx);
+        return tcg_temp_new_i64();
     }
 
     switch (get_xl(ctx)) {
     case MXL_RV32:
-        return ftemp_new(ctx);
+        return tcg_temp_new_i64();
 #ifdef TARGET_RISCV64
     case MXL_RV64:
         return cpu_gpr[reg_num];
@@ -1208,8 +1199,6 @@
     ctx->cs = cs;
     ctx->ntemp = 0;
     memset(ctx->temp, 0, sizeof(ctx->temp));
-    ctx->nftemp = 0;
-    memset(ctx->ftemp, 0, sizeof(ctx->ftemp));
     ctx->pm_mask_enabled = FIELD_EX32(tb_flags, TB_FLAGS, PM_MASK_ENABLED);
     ctx->pm_base_enabled = FIELD_EX32(tb_flags, TB_FLAGS, PM_BASE_ENABLED);
     ctx->itrigger = FIELD_EX32(tb_flags, TB_FLAGS, ITRIGGER);
@@ -1245,11 +1234,6 @@
         ctx->temp[i] = NULL;
     }
     ctx->ntemp = 0;
-    for (i = ctx->nftemp - 1; i >= 0; --i) {
-        tcg_temp_free_i64(ctx->ftemp[i]);
-        ctx->ftemp[i] = NULL;
-    }
-    ctx->nftemp = 0;
 
     /* Only the first insn within a TB is allowed to cross a page boundary. */
     if (ctx->base.is_jmp == DISAS_NEXT) {