[Bug tree-optimization/48172] [4.5/4.6/4.7 Regression] incorrect vectorization of loop in GCC 4.5.* with -O3

xunxun1982 at gmail dot com gcc-bugzilla@gcc.gnu.org
Fri Apr 8 00:16:00 GMT 2011


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48172

PcX <xunxun1982 at gmail dot com> changed:

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                 CC|                            |xunxun1982 at gmail dot com

--- Comment #6 from PcX <xunxun1982 at gmail dot com> 2011-04-08 00:15:36 UTC ---
Using mingw gcc4.5.2, the situation is not the same.
I found that when I use -O3, the result is pass.
When I use -O3 -march=native, the result is "COMPILER BUG: array[1025] should
be 98177 but is 0".



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