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tcg/riscv: 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 don't need to extend if the register matches.
This is already relied upon by comparisons.

Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2023-04-05 18:43:47 -07:00
parent 4745b156b8
commit 3ea9be3340
1 changed files with 3 additions and 1 deletions
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4
tcg/riscv/tcg-target.c.inc
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@ -609,7 +609,9 @@ 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)