Sanjay Patel fbe1366788 Preserve IR flags (nsw, nuw, exact, fast-math) in SLP vectorizer (PR20802). ... The SLP vectorizer should propagate IR-level optimization hints/flags (nsw, nuw, exact, fast-math) when converting scalar instructions into vectors. But this isn't a simple copy - we need to take the intersection (the logical 'and') of the sets of flags on the scalars. The solution is further complicated because we can have non-uniform (non-SIMD) vector ops after: http://reviews.llvm.org/D4015 http://llvm.org/viewvc/llvm-project?view=revision&revision=211339 The vast majority of changed files are existing tests that were not propagating IR flags, but I've also added a new test file for focused testing of IR flag possibilities. Differential Revision: http://reviews.llvm.org/D5172 llvm-svn: 217051		2014-09-03 17:40:30 +00:00
..
BBVectorize.cpp	Introduce a helper to combine instruction metadata.	2014-08-15 15:46:38 +00:00
CMakeLists.txt	SLP Vectorizer: Implement multi-block slp-vectorization.	2013-06-22 21:34:10 +00:00
LLVMBuild.txt	Prune redundant dependencies in LLVMBuild.txt.	2013-12-11 00:30:57 +00:00
LoopVectorize.cpp	Change name of copyFlags() to copyIRFlags(). Add convenience method for logical 'and' of all flags. NFC.	2014-09-03 01:06:50 +00:00
Makefile
SLPVectorizer.cpp	Preserve IR flags (nsw, nuw, exact, fast-math) in SLP vectorizer (PR20802).	2014-09-03 17:40:30 +00:00
Vectorize.cpp	[cleanup] Move the Dominators.h and Verifier.h headers into the IR	2014-01-13 09:26:24 +00:00