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[Bug target/41156] [4.4/4.5 Regression] zlib segfault in inflate_table() compiled w/ -O -msse2 ftree-vectorize
- From: "mahatma at eu dot by" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 13 Oct 2009 13:26:18 -0000
- Subject: [Bug target/41156] [4.4/4.5 Regression] zlib segfault in inflate_table() compiled w/ -O -msse2 ftree-vectorize
- References: <bug-41156-682@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #27 from mahatma at eu dot by 2009-10-13 13:26 -------
(In reply to comment #24)
> > unused wide. Why? What side-effects of "-mstackrealign"? Perfomance?
>
> Please see PR 40838.
As seen on... a...
I found only ABI standard reasons. FIXME!
But SSE usage still optional like -mstackrealign option. I see no political
differences: "-msse" or "-march=pentium4" or "-mstackrealign". Default "i686"
builds will be same unaligned.
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41156