[Bug tree-optimization/42889] "-fcompare-debug failure (length)" with "-O1 -fgcse"

[zsojka at seznam dot cz]

------- Comment #1 from zsojka at seznam dot cz  2010-01-28 00:26 -------
Created an attachment (id=19733)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=19733&action=view)
reduced testcase

Reduced from gcc/builtins.c

Command line:
gcc -O1 -fgcse -fcompare-debug -c pr42889.c


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42889