https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97204
Bug ID: 97204
Summary: [11 Regression] FAIL:
gcc.target/i386/sse2-mmx-pinsrw.c execution test
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: rguenth at gcc dot gnu.org
Target Milestone: ---
This fails due to IPA mod-ref. early FRE shows
--- a/sse2-mmx-pinsrw.c.036t.fre1 2020-09-25 11:24:23.379570162 +0200
+++ b/sse2-mmx-pinsrw.c.036t.fre1 2020-09-25 11:24:03.335333358 +0200
@@ -343,7 +343,6 @@
unsigned int i.1_1;
int r.3_3;
int ck.4_4;
- vector(2) int _21;
long unsigned int _22;
long unsigned int _23;
short int * _24;
@@ -355,8 +354,7 @@
<bb 3> :
i.1_1 = (unsigned int) i_5;
test_pinsrw (&y, 4660, i.1_1, &r);
- _21 = MEM[(__m64 * {ref-all})&y];
- MEM[(__m64 * {ref-all})&ck] = _21;
+ MEM[(__m64 * {ref-all})&ck] = { -218821384, 287834160 };
if (i.1_1 <= 3)
goto <bb 4>; [50.00%]
else
which has wrong values I think (but that should be unrelated to IPA modref)
