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[PULL 10/12] tcg/loongarch64: Conditionalize tcg_out_exts_i32_i64
From: |
Richard Henderson |
Subject: |
[PULL 10/12] tcg/loongarch64: Conditionalize tcg_out_exts_i32_i64 |
Date: |
Tue, 2 May 2023 12:20:21 +0100 |
Since TCG_TYPE_I32 values are kept sign-extended in registers,
via ".w" instructions, we need not extend if the register matches.
This is already relied upon by comparisons.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
tcg/loongarch64/tcg-target.c.inc | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/tcg/loongarch64/tcg-target.c.inc b/tcg/loongarch64/tcg-target.c.inc
index 21c2fc9e98..0940788c6f 100644
--- a/tcg/loongarch64/tcg-target.c.inc
+++ b/tcg/loongarch64/tcg-target.c.inc
@@ -463,7 +463,9 @@ static void tcg_out_ext32s(TCGContext *s, TCGReg ret,
TCGReg arg)
static void tcg_out_exts_i32_i64(TCGContext *s, TCGReg ret, TCGReg arg)
{
- tcg_out_ext32s(s, ret, arg);
+ if (ret != arg) {
+ tcg_out_ext32s(s, ret, arg);
+ }
}
static void tcg_out_extu_i32_i64(TCGContext *s, TCGReg ret, TCGReg arg)
--
2.34.1
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- [PULL 11/12] tcg/mips: Conditionalize tcg_out_exts_i32_i64, Richard Henderson, 2023/05/02
- [PULL 10/12] tcg/loongarch64: Conditionalize tcg_out_exts_i32_i64,
Richard Henderson <=
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