[Bug tree-optimization/45578] [4.6 Regression] The polyhedron test mdbx is miscompiled with -O2 -ftree-vectorize at revision 163940

[dominiq at lps dot ens dot fr]

------- Comment #1 from dominiq at lps dot ens dot fr  2010-09-07 12:07 -------
Created an attachment (id=21726)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=21726&action=view)
Split code for mdbx and good and bad assembly files.

> It may be due to revision 163915.

mdbx is miscompiled at revision 163915. The attached file contains the original
code minus the subroutine CENTCM, the source file for this subroutine, and the
assembly files from revisions 163913 (centcm_g.s) and 163913 (centcm_b.s) using
-O2 -ftree-vectorize.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45578