Wei Mi cac51be31f [X86] Disable loop unrolling in loop vectorization pass when VF is 1. ... The patch disabled unrolling in loop vectorization pass when VF==1 on x86 architecture, by setting MaxInterleaveFactor to 1. Unrolling in loop vectorization pass may introduce the cost of overflow check, memory boundary check and extra prologue/epilogue code when regular unroller will unroll the loop another time. Disable it when VF==1 remove the unnecessary cost on x86. The same can be done for other platforms after verifying interleaving/memory bound checking to be not perf critical on those platforms. Differential Revision: http://reviews.llvm.org/D9515 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@236613 91177308-0d34-0410-b5e6-96231b3b80d8		2015-05-06 17:12:25 +00:00
..
BBVectorize.cpp	Recommit r235458: [opaque pointer type] Avoid using PointerType::getElementType for a few cases of CallInst	2015-04-23 21:36:23 +00:00
CMakeLists.txt	Use ADDITIONAL_HEADER_DIRS in all LLVM CMake projects.	2015-02-11 03:28:02 +00:00
LLVMBuild.txt	Update libdeps since TLI was moved from Target to Analysis in r226078.	2015-01-15 05:21:00 +00:00
LoopVectorize.cpp	[X86] Disable loop unrolling in loop vectorization pass when VF is 1.	2015-05-06 17:12:25 +00:00
Makefile
SLPVectorizer.cpp	Add range iterators for post order and inverse post order. Use them	2015-04-15 17:41:42 +00:00
Vectorize.cpp	[PM] Remove the old 'PassManager.h' header file at the top level of	2015-02-13 10:01:29 +00:00