Andrew Trick 9093e15066 Fix SCEV forgetMemoizedResults should search and destroy backedge exprs. ... Fixes PR15570: SEGV: SCEV back-edge info invalid after dead code removal. Indvars creates a SCEV expression for the loop's back edge taken count, then determines that the comparison is always true and removes it. When loop-unroll asks for the expression, it contains a NULL SCEVUnknkown (as a CallbackVH). forgetMemoizedResults should invalidate the loop back edges expression. llvm-svn: 177986		2013-03-26 03:14:53 +00:00
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llvm	Fix SCEV forgetMemoizedResults should search and destroy backedge exprs.	2013-03-26 03:14:53 +00:00
llvm-c	Use LLVMBool instead of 'bool' in the C API. Based on a patch by Peter Zotov!	2013-03-10 21:58:22 +00:00