Davide Italiano d4d99b33ee [CVP] Replace incoming values from unreachable blocks with undef. ... This is an attempt of fixing PR35807. Due to the non-standard definition of dominance in LLVM, where uses in unreachable blocks are dominated by anything, you can have, in an unreachable block: %patatino = OP1 %patatino, CONSTANT When `SimplifyInstruction` receives a PHI where an incoming value is of the aforementioned form, in some cases, loops indefinitely. What I propose here instead is keeping track of the incoming values from unreachable blocks, and replacing them with undef. It fixes this case, and it seems to be good regardless (even if we can't prove that the value is constant, as it's coming from an unreachable block, we can ignore it). Differential Revision: https://reviews.llvm.org/D41812 llvm-svn: 322006		2018-01-08 16:34:06 +00:00
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Coroutines	Use phi ranges to simplify code. No functionality change intended.	2017-12-30 15:27:33 +00:00
Hello
InstCombine	[InstCombine] fold min/max tree with common operand (PR35717)	2018-01-08 15:05:34 +00:00
Instrumentation	Avoid int to string conversion in Twine or raw_ostream contexts.	2017-12-28 16:58:54 +00:00
IPO	WholeProgramDevirt: Simplify ORE getter mechanism for old PM. NFCI.	2018-01-05 00:27:51 +00:00
ObjCARC	Remove redundant includes from lib/Transforms.	2017-12-13 21:31:01 +00:00
Scalar	[CVP] Replace incoming values from unreachable blocks with undef.	2018-01-08 16:34:06 +00:00
Utils	[CodeExtractor] Use subset of function attributes for extracted function.	2018-01-07 11:22:25 +00:00
Vectorize	[SLP] Fix PR35777: Incorrect handling of aggregate values.	2018-01-08 14:43:06 +00:00
CMakeLists.txt
LLVMBuild.txt