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| author | Richard Henderson <richard.henderson@linaro.org> | 2023-04-05 18:40:44 -0700 |
|---|---|---|
| committer | Richard Henderson <richard.henderson@linaro.org> | 2023-05-02 13:05:45 -0700 |
| commit | c6a98619f7179a3564008ea9c9b3672821a6812f (patch) | |
| tree | 791332cd970b2be16e1fcafa4b578687ccb5b1fc /tcg/mips | |
| parent | 341ac0a05509de103f26e8819b5fecea887f5413 (diff) | |
| download | qemu-c6a98619f7179a3564008ea9c9b3672821a6812f.zip qemu-c6a98619f7179a3564008ea9c9b3672821a6812f.tar.gz qemu-c6a98619f7179a3564008ea9c9b3672821a6812f.tar.bz2 | |
tcg/mips: Conditionalize tcg_out_exts_i32_i64
Since TCG_TYPE_I32 values are kept sign-extended in registers, 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>
Diffstat (limited to 'tcg/mips')
| -rw-r--r-- | tcg/mips/tcg-target.c.inc | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/tcg/mips/tcg-target.c.inc b/tcg/mips/tcg-target.c.inc index 346c614..a83ebe8 100644 --- a/tcg/mips/tcg-target.c.inc +++ b/tcg/mips/tcg-target.c.inc @@ -582,7 +582,9 @@ static void tcg_out_ext32s(TCGContext *s, TCGReg rd, TCGReg rs) static void tcg_out_exts_i32_i64(TCGContext *s, TCGReg rd, TCGReg rs) { - tcg_out_ext32s(s, rd, rs); + if (rd != rs) { + tcg_out_ext32s(s, rd, rs); + } } static void tcg_out_extu_i32_i64(TCGContext *s, TCGReg rd, TCGReg rs) |