diff mbox series

[PULL,28/33] target/riscv: Use {get,dest}_gpr for RVA

Message ID 20210901020958.458454-29-alistair.francis@opensource.wdc.com
State New
Headers show
Series None | expand

Commit Message

Alistair Francis Sept. 1, 2021, 2:09 a.m. UTC 
From: Richard Henderson <richard.henderson@linaro.org>


Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

Reviewed-by: Alistair Francis <alistair.francis@wdc.com>

Message-id: 20210823195529.560295-20-richard.henderson@linaro.org
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>

---
 target/riscv/insn_trans/trans_rva.c.inc | 47 ++++++++++---------------
 1 file changed, 19 insertions(+), 28 deletions(-)

-- 
2.31.1
diff mbox series

Patch

diff --git a/target/riscv/insn_trans/trans_rva.c.inc b/target/riscv/insn_trans/trans_rva.c.inc
index 3cc3c3b073..6ea07d89b0 100644
--- a/target/riscv/insn_trans/trans_rva.c.inc
+++ b/target/riscv/insn_trans/trans_rva.c.inc
@@ -18,11 +18,10 @@ 
  * this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-static inline bool gen_lr(DisasContext *ctx, arg_atomic *a, MemOp mop)
+static bool gen_lr(DisasContext *ctx, arg_atomic *a, MemOp mop)
 {
-    TCGv src1 = tcg_temp_new();
-    /* Put addr in load_res, data in load_val.  */
-    gen_get_gpr(ctx, src1, a->rs1);
+    TCGv src1 = get_gpr(ctx, a->rs1, EXT_ZERO);
+
     if (a->rl) {
         tcg_gen_mb(TCG_MO_ALL | TCG_BAR_STRL);
     }
@@ -30,33 +29,33 @@  static inline bool gen_lr(DisasContext *ctx, arg_atomic *a, MemOp mop)
     if (a->aq) {
         tcg_gen_mb(TCG_MO_ALL | TCG_BAR_LDAQ);
     }
+
+    /* Put addr in load_res, data in load_val.  */
     tcg_gen_mov_tl(load_res, src1);
     gen_set_gpr(ctx, a->rd, load_val);
 
-    tcg_temp_free(src1);
     return true;
 }
 
-static inline bool gen_sc(DisasContext *ctx, arg_atomic *a, MemOp mop)
+static bool gen_sc(DisasContext *ctx, arg_atomic *a, MemOp mop)
 {
-    TCGv src1 = tcg_temp_new();
-    TCGv src2 = tcg_temp_new();
-    TCGv dat = tcg_temp_new();
+    TCGv dest, src1, src2;
     TCGLabel *l1 = gen_new_label();
     TCGLabel *l2 = gen_new_label();
 
-    gen_get_gpr(ctx, src1, a->rs1);
+    src1 = get_gpr(ctx, a->rs1, EXT_ZERO);
     tcg_gen_brcond_tl(TCG_COND_NE, load_res, src1, l1);
 
-    gen_get_gpr(ctx, src2, a->rs2);
     /*
      * Note that the TCG atomic primitives are SC,
      * so we can ignore AQ/RL along this path.
      */
-    tcg_gen_atomic_cmpxchg_tl(src1, load_res, load_val, src2,
+    dest = dest_gpr(ctx, a->rd);
+    src2 = get_gpr(ctx, a->rs2, EXT_NONE);
+    tcg_gen_atomic_cmpxchg_tl(dest, load_res, load_val, src2,
                               ctx->mem_idx, mop);
-    tcg_gen_setcond_tl(TCG_COND_NE, dat, src1, load_val);
-    gen_set_gpr(ctx, a->rd, dat);
+    tcg_gen_setcond_tl(TCG_COND_NE, dest, dest, load_val);
+    gen_set_gpr(ctx, a->rd, dest);
     tcg_gen_br(l2);
 
     gen_set_label(l1);
@@ -65,8 +64,7 @@  static inline bool gen_sc(DisasContext *ctx, arg_atomic *a, MemOp mop)
      * provide the memory barrier implied by AQ/RL.
      */
     tcg_gen_mb(TCG_MO_ALL + a->aq * TCG_BAR_LDAQ + a->rl * TCG_BAR_STRL);
-    tcg_gen_movi_tl(dat, 1);
-    gen_set_gpr(ctx, a->rd, dat);
+    gen_set_gpr(ctx, a->rd, tcg_constant_tl(1));
 
     gen_set_label(l2);
     /*
@@ -75,9 +73,6 @@  static inline bool gen_sc(DisasContext *ctx, arg_atomic *a, MemOp mop)
      */
     tcg_gen_movi_tl(load_res, -1);
 
-    tcg_temp_free(dat);
-    tcg_temp_free(src1);
-    tcg_temp_free(src2);
     return true;
 }
 
@@ -85,17 +80,13 @@  static bool gen_amo(DisasContext *ctx, arg_atomic *a,
                     void(*func)(TCGv, TCGv, TCGv, TCGArg, MemOp),
                     MemOp mop)
 {
-    TCGv src1 = tcg_temp_new();
-    TCGv src2 = tcg_temp_new();
-
-    gen_get_gpr(ctx, src1, a->rs1);
-    gen_get_gpr(ctx, src2, a->rs2);
+    TCGv dest = dest_gpr(ctx, a->rd);
+    TCGv src1 = get_gpr(ctx, a->rs1, EXT_NONE);
+    TCGv src2 = get_gpr(ctx, a->rs2, EXT_NONE);
 
-    (*func)(src2, src1, src2, ctx->mem_idx, mop);
+    func(dest, src1, src2, ctx->mem_idx, mop);
 
-    gen_set_gpr(ctx, a->rd, src2);
-    tcg_temp_free(src1);
-    tcg_temp_free(src2);
+    gen_set_gpr(ctx, a->rd, dest);
     return true;
 }