Sanjay Patel
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9da3c40bfb
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[ValueTracking] fix bug computing isKnownToBeAPowerOfTwo() with arithmetic shift right (PR25900)
This is a fix for:
https://llvm.org/bugs/show_bug.cgi?id=25900
If we think that an arithmetic right shift of a power of two is always a power of two,
an sdiv gets wrongly converted to udiv.
Differential Revision: http://reviews.llvm.org/D15827
llvm-svn: 256655
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2015-12-30 22:40:52 +00:00 |
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