The tcg_gen_fooi_tl functions have some immediate constant
folding built in, which match up with some of the riscv asm
builtin macros, like mv and not.
Signed-off-by: Richard Henderson <address@hidden>
---
target/riscv/insn_trans/trans_rvi.inc.c | 14 +++++++-------
target/riscv/translate.c | 19 +++++++++++++++++--
2 files changed, 24 insertions(+), 9 deletions(-)
diff --git a/target/riscv/insn_trans/trans_rvi.inc.c
b/target/riscv/insn_trans/trans_rvi.inc.c
index caf91f9a05..620df5f323 100644
--- a/target/riscv/insn_trans/trans_rvi.inc.c
+++ b/target/riscv/insn_trans/trans_rvi.inc.c
@@ -223,7 +223,7 @@ static bool trans_sd(DisasContext *ctx, arg_sd *a)
static bool trans_addi(DisasContext *ctx, arg_addi *a)
{
- return gen_arith_imm(ctx, a, &tcg_gen_add_tl);
+ return gen_arith_imm_fn(ctx, a, &tcg_gen_addi_tl);
}
static void gen_slt(TCGv ret, TCGv s1, TCGv s2)
@@ -239,25 +239,25 @@ static void gen_sltu(TCGv ret, TCGv s1, TCGv s2)
static bool trans_slti(DisasContext *ctx, arg_slti *a)
{
- return gen_arith_imm(ctx, a, &gen_slt);
+ return gen_arith_imm_tl(ctx, a, &gen_slt);
}
static bool trans_sltiu(DisasContext *ctx, arg_sltiu *a)
{
- return gen_arith_imm(ctx, a, &gen_sltu);
+ return gen_arith_imm_tl(ctx, a, &gen_sltu);
}
static bool trans_xori(DisasContext *ctx, arg_xori *a)
{
- return gen_arith_imm(ctx, a, &tcg_gen_xor_tl);
+ return gen_arith_imm_fn(ctx, a, &tcg_gen_xori_tl);
}
static bool trans_ori(DisasContext *ctx, arg_ori *a)
{
- return gen_arith_imm(ctx, a, &tcg_gen_or_tl);
+ return gen_arith_imm_fn(ctx, a, &tcg_gen_ori_tl);
}
static bool trans_andi(DisasContext *ctx, arg_andi *a)
{
- return gen_arith_imm(ctx, a, &tcg_gen_and_tl);
+ return gen_arith_imm_fn(ctx, a, &tcg_gen_andi_tl);
}
static bool trans_slli(DisasContext *ctx, arg_slli *a)
{
@@ -364,7 +364,7 @@ static bool trans_and(DisasContext *ctx, arg_and *a)
#ifdef TARGET_RISCV64
static bool trans_addiw(DisasContext *ctx, arg_addiw *a)
{
- return gen_arith_imm(ctx, a, &gen_addw);
+ return gen_arith_imm_tl(ctx, a, &gen_addw);
}
static bool trans_slliw(DisasContext *ctx, arg_slliw *a)
diff --git a/target/riscv/translate.c b/target/riscv/translate.c
index 50d8f58e4b..fb66e886bf 100644
--- a/target/riscv/translate.c
+++ b/target/riscv/translate.c
@@ -547,8 +547,23 @@ static int ex_rvc_shifti(int imm)
/* Include the auto-generated decoder for 32 bit insn */
#include "decode_insn32.inc.c"
-static bool gen_arith_imm(DisasContext *ctx, arg_i *a,
- void(*func)(TCGv, TCGv, TCGv))
+static bool gen_arith_imm_fn(DisasContext *ctx, arg_i *a,
+ void (*func)(TCGv, TCGv, target_long))
+{
+ TCGv source1;
+ source1 = tcg_temp_new();
+
+ gen_get_gpr(source1, a->rs1);
+
+ (*func)(source1, source1, a->imm);
+
+ gen_set_gpr(a->rd, source1);
+ tcg_temp_free(source1);
+ return true;
+}
+
+static bool gen_arith_imm_tl(DisasContext *ctx, arg_i *a,
+ void (*func)(TCGv, TCGv, TCGv))
{
TCGv source1, source2;
source1 = tcg_temp_new();