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[PULL,123/159] tcg/i386: Honor carry_live in tcg_out_movi

Message ID 20250425215454.886111-124-richard.henderson@linaro.org
State New
Headers show
Series [PULL,001/159] tcg/loongarch64: Fix vec_val computation in tcg_target_const_match | expand

Commit Message

Richard Henderson April 25, 2025, 9:54 p.m. UTC 
Do not clobber flags if they're live.  Required in order
to perform register allocation on add/sub carry opcodes.

Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 tcg/i386/tcg-target.c.inc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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Patch

diff --git a/tcg/i386/tcg-target.c.inc b/tcg/i386/tcg-target.c.inc
index 04e31cae12..8e0ccbc722 100644
--- a/tcg/i386/tcg-target.c.inc
+++ b/tcg/i386/tcg-target.c.inc
@@ -1092,7 +1092,7 @@  static void tcg_out_movi_int(TCGContext *s, TCGType type,
 {
     tcg_target_long diff;
 
-    if (arg == 0) {
+    if (arg == 0 && !s->carry_live) {
         tgen_arithr(s, ARITH_XOR, ret, ret);
         return;
     }