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Author SHA1 Message Date
Dan Gohman
f2ae9c6220 Fix the x86 test-shrink optimization so that it doesn't shrink comparisons
when one of the bits being tested would end up being the sign bit in the
narrower type, and a signed comparison is being performed, since this would
change the result of the signed comparison. This fixes PR5132.

llvm-svn: 83670
2009-10-09 20:35:19 +00:00