[Bug tree-optimization/42916] [4.5 Regression] "-fcompare-debug failure" with "-O1 -funroll-loops -ftree-vectorize"

[zsojka at seznam dot cz]

------- Comment #2 from zsojka at seznam dot cz  2010-02-01 00:46 -------
Created an attachment (id=19771)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=19771&action=view)
reduced testcase, better yet longer

This one doesn't need -m32, and fails with both -O1 and -O2

Command line:
gcc -O1 -funroll-loops -ftree-vectorize -fcompare-debug -c pr42916-2.c
or
gcc -O2 -funroll-loops -ftree-vectorize -fcompare-debug -c pr42916-2.c


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42916