David Majnemer 3bbb4b15ae InstCombine: Fix a potential bug in 0 - (X sdiv C) -> (X sdiv -C) ... While *most* (X sdiv 1) operations will get caught by InstSimplify, it is still possible for a sdiv to appear in the worklist which hasn't been simplified yet. This means that it is possible for 0 - (X sdiv 1) to get transformed into (X sdiv -1); dividing by -1 can make the transform produce undef values instead of the proper result. Sorry for the lack of testcase, it's a bit problematic because it relies on the exact order of operations in the worklist. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@215818 91177308-0d34-0410-b5e6-96231b3b80d8		2014-08-16 09:23:42 +00:00
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llvm	InstCombine: Fix a potential bug in 0 - (X sdiv C) -> (X sdiv -C)	2014-08-16 09:23:42 +00:00
llvm-c	Canonicalize header guards into a common format.	2014-08-13 16:26:38 +00:00