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tcg/loongarch64: Conditionalize tcg_out_exts_i32_i64

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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>
This commit is contained in:
Richard Henderson 2023-04-05 18:37:25 -07:00
parent 2899062614
commit 341ac0a055
1 changed files with 3 additions and 1 deletions
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tcg/loongarch64/tcg-target.c.inc
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@ -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)