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[Bug rtl-optimization/63375] [4.8/4.9/5 Regression] reordering of reads across fences
- From: "jakub at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Mon, 24 Nov 2014 15:19:00 +0000
- Subject: [Bug rtl-optimization/63375] [4.8/4.9/5 Regression] reordering of reads across fences
- Auto-submitted: auto-generated
- References: <bug-63375-4 at http dot gcc dot gnu dot org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63375
--- Comment #14 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
How is that observable (other than looking at the assembly)?
val1 is an automatic variable whose address doesn't escape to other threads,
and isn't volatile either. Why do you care?