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[Bug target/25413] wrong alignment or incorrect address computation in vectorized code on Pentium 4 SSE
- From: "David dot Monniaux at ens dot fr" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 14 Dec 2005 15:26:35 -0000
- Subject: [Bug target/25413] wrong alignment or incorrect address computation in vectorized code on Pentium 4 SSE
- References: <bug-25413-11859@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #1 from David dot Monniaux at ens dot fr 2005-12-14 15:26 -------
Created an attachment (id=10486)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=10486&action=view)
preprocessed C source code (assumes Linux glibc) exhibiting the code generation
bug
Compile this program with -O2 -march=pentium4 -ftree-vectorize on a Pentium 4
and run it. It will segfault. It works perfectly without vectorization.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25413