tcg/optimize: INDEX_op_mul is commutative

[PATCH] tcg/optimize: INDEX_op_mul is commutative

Richard Henderson posted 1 patch 2 weeks ago

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git fetch https://github.com/patchew-project/qemu tags/patchew/20260811225250.173812-1-richard.henderson@linaro.org

Maintainers: Richard Henderson <richard.henderson@linaro.org>

tcg/optimize.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

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[PATCH] tcg/optimize: INDEX_op_mul is commutative

Posted by Richard Henderson 2 weeks ago

Cc: qemu-stable@nongnu.org
Fixes: 7a2f7084525 ("tcg/optimize: Sink commutative operand swapping into fold functions")
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 tcg/optimize.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tcg/optimize.c b/tcg/optimize.c
index fcdef25bee..ed2ff32ed2 100644
--- a/tcg/optimize.c
+++ b/tcg/optimize.c
@@ -2152,7 +2152,7 @@ static bool fold_movcond(OptContext *ctx, TCGOp *op)
 
 static bool fold_mul(OptContext *ctx, TCGOp *op)
 {
-    if (fold_const2(ctx, op) ||
+    if (fold_const2_commutative(ctx, op) ||
         fold_xi_to_i(ctx, op, 0) ||
         fold_xi_to_x(ctx, op, 1)) {
         return true;
-- 
2.43.0

Re: [PATCH] tcg/optimize: INDEX_op_mul is commutative

Posted by Philippe Mathieu-Daudé 1 week, 6 days ago

On 12/8/26 00:52, Richard Henderson wrote:
> Cc: qemu-stable@nongnu.org
> Fixes: 7a2f7084525 ("tcg/optimize: Sink commutative operand swapping into fold functions")
> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
> ---
>   tcg/optimize.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)

Reviewed-by: Philippe Mathieu-Daudé <philmd@oss.qualcomm.com>