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-rw-r--r--tcg/tcg.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/tcg/tcg.c b/tcg/tcg.c
index c3a7f19bd7..11334387a0 100644
--- a/tcg/tcg.c
+++ b/tcg/tcg.c
@@ -1329,8 +1329,8 @@ static void tcg_liveness_analysis(TCGContext *s)
the low part. The result can be optimized to a simple
add or sub. This happens often for x86_64 guest when the
cpu mode is set to 32 bit. */
- if (dead_temps[args[1]]) {
- if (dead_temps[args[0]]) {
+ if (dead_temps[args[1]] && !mem_temps[1]) {
+ if (dead_temps[args[0]] && !mem_temps[0]) {
goto do_remove;
}
/* Create the single operation plus nop. */
@@ -1355,8 +1355,8 @@ static void tcg_liveness_analysis(TCGContext *s)
nb_iargs = 2;
nb_oargs = 2;
/* Likewise, test for the high part of the operation dead. */
- if (dead_temps[args[1]]) {
- if (dead_temps[args[0]]) {
+ if (dead_temps[args[1]] && !mem_temps[1]) {
+ if (dead_temps[args[0]] && !mem_temps[0]) {
goto do_remove;
}
gen_opc_buf[op_index] = op = INDEX_op_mul_i32;