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[PULL,17/33] target/riscv: Use gen_arith for mulh and mulhu

Message ID 20210901020958.458454-18-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>


Split out gen_mulh and gen_mulhu and use the common helper.

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

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

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

Message-id: 20210823195529.560295-9-richard.henderson@linaro.org
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>

---
 target/riscv/insn_trans/trans_rvm.c.inc | 40 +++++++++++--------------
 1 file changed, 18 insertions(+), 22 deletions(-)

-- 
2.31.1
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Patch

diff --git a/target/riscv/insn_trans/trans_rvm.c.inc b/target/riscv/insn_trans/trans_rvm.c.inc
index 3d93b24c25..80552be7a3 100644
--- a/target/riscv/insn_trans/trans_rvm.c.inc
+++ b/target/riscv/insn_trans/trans_rvm.c.inc
@@ -25,20 +25,18 @@  static bool trans_mul(DisasContext *ctx, arg_mul *a)
     return gen_arith(ctx, a, EXT_NONE, tcg_gen_mul_tl);
 }
 
-static bool trans_mulh(DisasContext *ctx, arg_mulh *a)
+static void gen_mulh(TCGv ret, TCGv s1, TCGv s2)
 {
-    REQUIRE_EXT(ctx, RVM);
-    TCGv source1 = tcg_temp_new();
-    TCGv source2 = tcg_temp_new();
-    gen_get_gpr(ctx, source1, a->rs1);
-    gen_get_gpr(ctx, source2, a->rs2);
+    TCGv discard = tcg_temp_new();
 
-    tcg_gen_muls2_tl(source2, source1, source1, source2);
+    tcg_gen_muls2_tl(discard, ret, s1, s2);
+    tcg_temp_free(discard);
+}
 
-    gen_set_gpr(ctx, a->rd, source1);
-    tcg_temp_free(source1);
-    tcg_temp_free(source2);
-    return true;
+static bool trans_mulh(DisasContext *ctx, arg_mulh *a)
+{
+    REQUIRE_EXT(ctx, RVM);
+    return gen_arith(ctx, a, EXT_NONE, gen_mulh);
 }
 
 static bool trans_mulhsu(DisasContext *ctx, arg_mulhsu *a)
@@ -47,20 +45,18 @@  static bool trans_mulhsu(DisasContext *ctx, arg_mulhsu *a)
     return gen_arith(ctx, a, EXT_NONE, gen_mulhsu);
 }
 
-static bool trans_mulhu(DisasContext *ctx, arg_mulhu *a)
+static void gen_mulhu(TCGv ret, TCGv s1, TCGv s2)
 {
-    REQUIRE_EXT(ctx, RVM);
-    TCGv source1 = tcg_temp_new();
-    TCGv source2 = tcg_temp_new();
-    gen_get_gpr(ctx, source1, a->rs1);
-    gen_get_gpr(ctx, source2, a->rs2);
+    TCGv discard = tcg_temp_new();
 
-    tcg_gen_mulu2_tl(source2, source1, source1, source2);
+    tcg_gen_mulu2_tl(discard, ret, s1, s2);
+    tcg_temp_free(discard);
+}
 
-    gen_set_gpr(ctx, a->rd, source1);
-    tcg_temp_free(source1);
-    tcg_temp_free(source2);
-    return true;
+static bool trans_mulhu(DisasContext *ctx, arg_mulhu *a)
+{
+    REQUIRE_EXT(ctx, RVM);
+    return gen_arith(ctx, a, EXT_NONE, gen_mulhu);
 }
 
 static bool trans_div(DisasContext *ctx, arg_div *a)