From 3ea9be33400f14305565a9a094cb6031c07183d5 Mon Sep 17 00:00:00 2001 From: Richard Henderson Date: Wed, 5 Apr 2023 18:43:47 -0700 Subject: tcg/riscv: Conditionalize tcg_out_exts_i32_i64 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 Signed-off-by: Richard Henderson --- tcg/riscv/tcg-target.c.inc | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'tcg/riscv/tcg-target.c.inc') diff --git a/tcg/riscv/tcg-target.c.inc b/tcg/riscv/tcg-target.c.inc index 328cbc0ad6..266fe1433d 100644 --- a/tcg/riscv/tcg-target.c.inc +++ b/tcg/riscv/tcg-target.c.inc @@ -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) -- cgit v1.2.3