With the "old" ldst ops we didn't know the real width of the
result of the load, but with the "new" ldst ops we do.
Signed-off-by: Richard Henderson <r...@twiddle.net>
---
tcg/optimize.c | 9 ++++-----
1 file changed, 4 insertions(+), 5 deletions(-)
diff --git a/tcg/optimize.c b/tcg/optimize.c
index 16cebbe..34ae3c2 100644
--- a/tcg/optimize.c
+++ b/tcg/optimize.c
@@ -911,12 +911,11 @@ static TCGArg *tcg_constant_folding(TCGContext *s,
uint16_t *tcg_opc_ptr,
break;
}
- /* 32-bit ops (non 64-bit ops and non load/store ops) generate
- 32-bit results. For the result is zero test below, we can
- ignore high bits, but for further optimizations we need to
- record that the high bits contain garbage. */
+ /* 32-bit ops generate 32-bit results. For the result is zero test
+ below, we can ignore high bits, but for further optimizations we
+ need to record that the high bits contain garbage. */
partmask = mask;
- if (!(def->flags & (TCG_OPF_CALL_CLOBBER | TCG_OPF_64BIT))) {
+ if (!(def->flags & TCG_OPF_64BIT)) {
mask |= ~(tcg_target_ulong)0xffffffffu;
partmask &= 0xffffffffu;
affected &= 0xffffffffu;
--
1.9.3
