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[Bug sanitizer/55975] asan does not work with 46 bit address space on PowerPC64
- 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: Fri, 18 Jan 2013 13:52:02 +0000
- Subject: [Bug sanitizer/55975] asan does not work with 46 bit address space on PowerPC64
- Auto-submitted: auto-generated
- References: <bug-55975-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55975
--- Comment #20 from Jakub Jelinek <jakub at gcc dot gnu.org> 2013-01-18 13:52:02 UTC ---
Ah yes, it can't be | SHADOW_OFFSET then, but has to be + SHADOW_OFFSET. + is
what gcc emits (the reason for that was primarily that it resulted in better
code on x86_64/i686). So perhaps for targets where SHADOW_OFFSET is non-zero
and below (or equal to) 12.5% of maximum user address space, we are free to use
either | or +, but for other targets (for now ppc64) it must use +?