diff options
Diffstat (limited to 'tcg/tcg.c')
| -rw-r--r-- | tcg/tcg.c | 8 |
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; |