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[Bug middle-end/69454] [6 Regression] ix86_expand_prologue internal compiler error: Segmentation fault
- 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: Tue, 26 Jan 2016 11:21:55 +0000
- Subject: [Bug middle-end/69454] [6 Regression] ix86_expand_prologue internal compiler error: Segmentation fault
- Auto-submitted: auto-generated
- References: <bug-69454-4 at http dot gcc dot gnu dot org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69454
--- Comment #14 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Have you tried H.J's patch? If I understand it right, IMHO at least the
*mov<mode>_internal changes look desirable to me after the recent changes where
misaligned_operand matters even for pre-AVX, and the result could be that if
the stack can't be realigned and -mpreferred-stack-boundary is low, worst case
there will be unaligned loads/stores to the stack slots instead of aligned
ones.