[PATCH v4 18/21] target/riscv: Use {get,dest}

qemu-riscv

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[PATCH v4 18/21] target/riscv: Use {get,dest}_gpr for RVF

From:	Richard Henderson
Subject:	[PATCH v4 18/21] target/riscv: Use {get,dest}_gpr for RVF
Date:	Fri, 20 Aug 2021 07:42:54 -1000

Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 target/riscv/insn_trans/trans_rvf.c.inc | 146 ++++++++++++------------
 1 file changed, 70 insertions(+), 76 deletions(-)

diff --git a/target/riscv/insn_trans/trans_rvf.c.inc 
b/target/riscv/insn_trans/trans_rvf.c.inc
index fb9f7f9c00..bddbd418d9 100644
--- a/target/riscv/insn_trans/trans_rvf.c.inc
+++ b/target/riscv/insn_trans/trans_rvf.c.inc
@@ -25,32 +25,43 @@
 
 static bool trans_flw(DisasContext *ctx, arg_flw *a)
 {
+    TCGv_i64 dest;
+    TCGv addr;
+
     REQUIRE_FPU;
     REQUIRE_EXT(ctx, RVF);
-    TCGv t0 = tcg_temp_new();
-    gen_get_gpr(ctx, t0, a->rs1);
-    tcg_gen_addi_tl(t0, t0, a->imm);
 
-    tcg_gen_qemu_ld_i64(cpu_fpr[a->rd], t0, ctx->mem_idx, MO_TEUL);
-    gen_nanbox_s(cpu_fpr[a->rd], cpu_fpr[a->rd]);
+    addr = get_gpr(ctx, a->rs1, EXT_NONE);
+    if (a->imm) {
+        TCGv temp = temp_new(ctx);
+        tcg_gen_addi_tl(temp, addr, a->imm);
+        addr = temp;
+    }
+
+    dest = cpu_fpr[a->rd];
+    tcg_gen_qemu_ld_i64(dest, addr, ctx->mem_idx, MO_TEUL);
+    gen_nanbox_s(dest, dest);
 
-    tcg_temp_free(t0);
     mark_fs_dirty(ctx);
     return true;
 }
 
 static bool trans_fsw(DisasContext *ctx, arg_fsw *a)
 {
+    TCGv addr;
+
     REQUIRE_FPU;
     REQUIRE_EXT(ctx, RVF);
-    TCGv t0 = tcg_temp_new();
-    gen_get_gpr(ctx, t0, a->rs1);
 
-    tcg_gen_addi_tl(t0, t0, a->imm);
+    addr = get_gpr(ctx, a->rs1, EXT_NONE);
+    if (a->imm) {
+        TCGv temp = tcg_temp_new();
+        tcg_gen_addi_tl(temp, addr, a->imm);
+        addr = temp;
+    }
 
-    tcg_gen_qemu_st_i64(cpu_fpr[a->rs2], t0, ctx->mem_idx, MO_TEUL);
+    tcg_gen_qemu_st_i64(cpu_fpr[a->rs2], addr, ctx->mem_idx, MO_TEUL);
 
-    tcg_temp_free(t0);
     return true;
 }
 
@@ -271,12 +282,11 @@ static bool trans_fcvt_w_s(DisasContext *ctx, 
arg_fcvt_w_s *a)
     REQUIRE_FPU;
     REQUIRE_EXT(ctx, RVF);
 
-    TCGv t0 = tcg_temp_new();
-    gen_set_rm(ctx, a->rm);
-    gen_helper_fcvt_w_s(t0, cpu_env, cpu_fpr[a->rs1]);
-    gen_set_gpr(ctx, a->rd, t0);
-    tcg_temp_free(t0);
+    TCGv dest = dest_gpr(ctx, a->rd);
 
+    gen_set_rm(ctx, a->rm);
+    gen_helper_fcvt_w_s(dest, cpu_env, cpu_fpr[a->rs1]);
+    gen_set_gpr(ctx, a->rd, dest);
     return true;
 }
 
@@ -285,12 +295,11 @@ static bool trans_fcvt_wu_s(DisasContext *ctx, 
arg_fcvt_wu_s *a)
     REQUIRE_FPU;
     REQUIRE_EXT(ctx, RVF);
 
-    TCGv t0 = tcg_temp_new();
-    gen_set_rm(ctx, a->rm);
-    gen_helper_fcvt_wu_s(t0, cpu_env, cpu_fpr[a->rs1]);
-    gen_set_gpr(ctx, a->rd, t0);
-    tcg_temp_free(t0);
+    TCGv dest = dest_gpr(ctx, a->rd);
 
+    gen_set_rm(ctx, a->rm);
+    gen_helper_fcvt_wu_s(dest, cpu_env, cpu_fpr[a->rs1]);
+    gen_set_gpr(ctx, a->rd, dest);
     return true;
 }
 
@@ -300,17 +309,15 @@ static bool trans_fmv_x_w(DisasContext *ctx, arg_fmv_x_w 
*a)
     REQUIRE_FPU;
     REQUIRE_EXT(ctx, RVF);
 
-    TCGv t0 = tcg_temp_new();
+    TCGv dest = dest_gpr(ctx, a->rd);
 
 #if defined(TARGET_RISCV64)
-    tcg_gen_ext32s_tl(t0, cpu_fpr[a->rs1]);
+    tcg_gen_ext32s_tl(dest, cpu_fpr[a->rs1]);
 #else
-    tcg_gen_extrl_i64_i32(t0, cpu_fpr[a->rs1]);
+    tcg_gen_extrl_i64_i32(dest, cpu_fpr[a->rs1]);
 #endif
 
-    gen_set_gpr(ctx, a->rd, t0);
-    tcg_temp_free(t0);
-
+    gen_set_gpr(ctx, a->rd, dest);
     return true;
 }
 
@@ -318,10 +325,11 @@ static bool trans_feq_s(DisasContext *ctx, arg_feq_s *a)
 {
     REQUIRE_FPU;
     REQUIRE_EXT(ctx, RVF);
-    TCGv t0 = tcg_temp_new();
-    gen_helper_feq_s(t0, cpu_env, cpu_fpr[a->rs1], cpu_fpr[a->rs2]);
-    gen_set_gpr(ctx, a->rd, t0);
-    tcg_temp_free(t0);
+
+    TCGv dest = dest_gpr(ctx, a->rd);
+
+    gen_helper_feq_s(dest, cpu_env, cpu_fpr[a->rs1], cpu_fpr[a->rs2]);
+    gen_set_gpr(ctx, a->rd, dest);
     return true;
 }
 
@@ -329,10 +337,11 @@ static bool trans_flt_s(DisasContext *ctx, arg_flt_s *a)
 {
     REQUIRE_FPU;
     REQUIRE_EXT(ctx, RVF);
-    TCGv t0 = tcg_temp_new();
-    gen_helper_flt_s(t0, cpu_env, cpu_fpr[a->rs1], cpu_fpr[a->rs2]);
-    gen_set_gpr(ctx, a->rd, t0);
-    tcg_temp_free(t0);
+
+    TCGv dest = dest_gpr(ctx, a->rd);
+
+    gen_helper_flt_s(dest, cpu_env, cpu_fpr[a->rs1], cpu_fpr[a->rs2]);
+    gen_set_gpr(ctx, a->rd, dest);
     return true;
 }
 
@@ -340,10 +349,11 @@ static bool trans_fle_s(DisasContext *ctx, arg_fle_s *a)
 {
     REQUIRE_FPU;
     REQUIRE_EXT(ctx, RVF);
-    TCGv t0 = tcg_temp_new();
-    gen_helper_fle_s(t0, cpu_env, cpu_fpr[a->rs1], cpu_fpr[a->rs2]);
-    gen_set_gpr(ctx, a->rd, t0);
-    tcg_temp_free(t0);
+
+    TCGv dest = dest_gpr(ctx, a->rd);
+
+    gen_helper_fle_s(dest, cpu_env, cpu_fpr[a->rs1], cpu_fpr[a->rs2]);
+    gen_set_gpr(ctx, a->rd, dest);
     return true;
 }
 
@@ -352,13 +362,10 @@ static bool trans_fclass_s(DisasContext *ctx, 
arg_fclass_s *a)
     REQUIRE_FPU;
     REQUIRE_EXT(ctx, RVF);
 
-    TCGv t0 = tcg_temp_new();
-
-    gen_helper_fclass_s(t0, cpu_fpr[a->rs1]);
-
-    gen_set_gpr(ctx, a->rd, t0);
-    tcg_temp_free(t0);
+    TCGv dest = dest_gpr(ctx, a->rd);
 
+    gen_helper_fclass_s(dest, cpu_fpr[a->rs1]);
+    gen_set_gpr(ctx, a->rd, dest);
     return true;
 }
 
@@ -367,15 +374,12 @@ static bool trans_fcvt_s_w(DisasContext *ctx, 
arg_fcvt_s_w *a)
     REQUIRE_FPU;
     REQUIRE_EXT(ctx, RVF);
 
-    TCGv t0 = tcg_temp_new();
-    gen_get_gpr(ctx, t0, a->rs1);
+    TCGv src = get_gpr(ctx, a->rs1, EXT_SIGN);
 
     gen_set_rm(ctx, a->rm);
-    gen_helper_fcvt_s_w(cpu_fpr[a->rd], cpu_env, t0);
+    gen_helper_fcvt_s_w(cpu_fpr[a->rd], cpu_env, src);
 
     mark_fs_dirty(ctx);
-    tcg_temp_free(t0);
-
     return true;
 }
 
@@ -384,15 +388,12 @@ static bool trans_fcvt_s_wu(DisasContext *ctx, 
arg_fcvt_s_wu *a)
     REQUIRE_FPU;
     REQUIRE_EXT(ctx, RVF);
 
-    TCGv t0 = tcg_temp_new();
-    gen_get_gpr(ctx, t0, a->rs1);
+    TCGv src = get_gpr(ctx, a->rs1, EXT_ZERO);
 
     gen_set_rm(ctx, a->rm);
-    gen_helper_fcvt_s_wu(cpu_fpr[a->rd], cpu_env, t0);
+    gen_helper_fcvt_s_wu(cpu_fpr[a->rd], cpu_env, src);
 
     mark_fs_dirty(ctx);
-    tcg_temp_free(t0);
-
     return true;
 }
 
@@ -402,15 +403,12 @@ static bool trans_fmv_w_x(DisasContext *ctx, arg_fmv_w_x 
*a)
     REQUIRE_FPU;
     REQUIRE_EXT(ctx, RVF);
 
-    TCGv t0 = tcg_temp_new();
-    gen_get_gpr(ctx, t0, a->rs1);
+    TCGv src = get_gpr(ctx, a->rs1, EXT_ZERO);
 
-    tcg_gen_extu_tl_i64(cpu_fpr[a->rd], t0);
+    tcg_gen_extu_tl_i64(cpu_fpr[a->rd], src);
     gen_nanbox_s(cpu_fpr[a->rd], cpu_fpr[a->rd]);
 
     mark_fs_dirty(ctx);
-    tcg_temp_free(t0);
-
     return true;
 }
 
@@ -420,11 +418,11 @@ static bool trans_fcvt_l_s(DisasContext *ctx, 
arg_fcvt_l_s *a)
     REQUIRE_FPU;
     REQUIRE_EXT(ctx, RVF);
 
-    TCGv t0 = tcg_temp_new();
+    TCGv dest = dest_gpr(ctx, a->rd);
+
     gen_set_rm(ctx, a->rm);
-    gen_helper_fcvt_l_s(t0, cpu_env, cpu_fpr[a->rs1]);
-    gen_set_gpr(ctx, a->rd, t0);
-    tcg_temp_free(t0);
+    gen_helper_fcvt_l_s(dest, cpu_env, cpu_fpr[a->rs1]);
+    gen_set_gpr(ctx, a->rd, dest);
     return true;
 }
 
@@ -434,11 +432,11 @@ static bool trans_fcvt_lu_s(DisasContext *ctx, 
arg_fcvt_lu_s *a)
     REQUIRE_FPU;
     REQUIRE_EXT(ctx, RVF);
 
-    TCGv t0 = tcg_temp_new();
+    TCGv dest = dest_gpr(ctx, a->rd);
+
     gen_set_rm(ctx, a->rm);
-    gen_helper_fcvt_lu_s(t0, cpu_env, cpu_fpr[a->rs1]);
-    gen_set_gpr(ctx, a->rd, t0);
-    tcg_temp_free(t0);
+    gen_helper_fcvt_lu_s(dest, cpu_env, cpu_fpr[a->rs1]);
+    gen_set_gpr(ctx, a->rd, dest);
     return true;
 }
 
@@ -448,14 +446,12 @@ static bool trans_fcvt_s_l(DisasContext *ctx, 
arg_fcvt_s_l *a)
     REQUIRE_FPU;
     REQUIRE_EXT(ctx, RVF);
 
-    TCGv t0 = tcg_temp_new();
-    gen_get_gpr(ctx, t0, a->rs1);
+    TCGv src = get_gpr(ctx, a->rs1, EXT_SIGN);
 
     gen_set_rm(ctx, a->rm);
-    gen_helper_fcvt_s_l(cpu_fpr[a->rd], cpu_env, t0);
+    gen_helper_fcvt_s_l(cpu_fpr[a->rd], cpu_env, src);
 
     mark_fs_dirty(ctx);
-    tcg_temp_free(t0);
     return true;
 }
 
@@ -465,13 +461,11 @@ static bool trans_fcvt_s_lu(DisasContext *ctx, 
arg_fcvt_s_lu *a)
     REQUIRE_FPU;
     REQUIRE_EXT(ctx, RVF);
 
-    TCGv t0 = tcg_temp_new();
-    gen_get_gpr(ctx, t0, a->rs1);
+    TCGv src = get_gpr(ctx, a->rs1, EXT_ZERO);
 
     gen_set_rm(ctx, a->rm);
-    gen_helper_fcvt_s_lu(cpu_fpr[a->rd], cpu_env, t0);
+    gen_helper_fcvt_s_lu(cpu_fpr[a->rd], cpu_env, src);
 
     mark_fs_dirty(ctx);
-    tcg_temp_free(t0);
     return true;
 }
-- 
2.25.1

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Re: [PATCH v4 15/21] target/riscv: Reorg csr instructions, (continued)
- [PATCH v4 12/21] target/riscv: Use DisasExtend in shift operations, Richard Henderson, 2021/08/20
  - Re: [PATCH v4 12/21] target/riscv: Use DisasExtend in shift operations, Alistair Francis, 2021/08/23
- [PATCH v4 17/21] target/riscv: Use gen_shift_imm_fn for slli_uw, Richard Henderson, 2021/08/20
- [PATCH v4 14/21] target/riscv: Use {get, dest}_gpr for integer load/store, Richard Henderson, 2021/08/20
  - Re: [PATCH v4 14/21] target/riscv: Use {get, dest}_gpr for integer load/store, Alistair Francis, 2021/08/23
- [PATCH v4 13/21] target/riscv: Use get_gpr in branches, Richard Henderson, 2021/08/20
  - Re: [PATCH v4 13/21] target/riscv: Use get_gpr in branches, Alistair Francis, 2021/08/23
- [PATCH v4 16/21] target/riscv: Use {get,dest}_gpr for RVA, Richard Henderson, 2021/08/20
- [PATCH v4 18/21] target/riscv: Use {get,dest}_gpr for RVF, Richard Henderson <=
- [PATCH v4 19/21] target/riscv: Use {get,dest}_gpr for RVD, Richard Henderson, 2021/08/20
- [PATCH v4 20/21] target/riscv: Tidy trans_rvh.c.inc, Richard Henderson, 2021/08/20
- [PATCH v4 21/21] target/riscv: Use {get,dest}_gpr for RVV, Richard Henderson, 2021/08/20
- Re: [PATCH v4 00/21] target/riscv: Use tcg_constant_*, Alistair Francis, 2021/08/30
  - Re: [PATCH v4 00/21] target/riscv: Use tcg_constant_*, Richard Henderson, 2021/08/30
    - Re: [PATCH v4 00/21] target/riscv: Use tcg_constant_*, Alistair Francis, 2021/08/30

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