https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100653
Bug ID: 100653
Summary: usage of scalar_storage_order produces incorrect
result
Product: gcc
Version: 11.1.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: jan.smets at nokia dot com
Target Milestone: ---
Created attachment 50840
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=50840&action=edit
scalar_storage_order test case
Attached test case produces invalid results with -O2, good with -O1.
Known to fail : 11.1 10.3 9.3 8.5 7.5
Known to work: 6.5
Target: x86_64-linux-gnu
$ gcc test.c -o /tmp/test -O2 -Wall -Wextra && /tmp/test
a0a1e01 EQ? 11e0a0a 0
$ gcc test.c -o /tmp/test -O1 -Wall -Wextra && /tmp/test
a0a1e01 EQ? a0a1e01 1
Thank you
