[Bug target/25413] wrong alignment or incorrect address computation in vectorized code on Pentium 4 SSE

David dot Monniaux at ens dot fr gcc-bugzilla@gcc.gnu.org
Wed Dec 14 15:26:00 GMT 2005



------- 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



More information about the Gcc-bugs mailing list