Michael Zolotukhin ad0be616bd [SLP] Don't vectorize loads of non-packed types (like i1, i2). ...

Summary:
Given an array of i2 elements, 4 consecutive scalar loads will be lowered to
i8-sized loads and thus will access 4 consecutive bytes in memory. If we
vectorize these loads into a single <4 x i2> load, it'll access only 1 byte in
memory. Hence, we should prohibit vectorization in such cases.

PS: Initial patch was proposed by Arnold.

Reviewers: aschwaighofer, nadav, hfinkel

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D13277

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248943 91177308-0d34-0410-b5e6-96231b3b80d8

2015-09-30 21:05:43 +00:00

..

BBVectorize.cpp

[PM/AA] Rebuild LLVM's alias analysis infrastructure in a way compatible

2015-09-09 17:55:00 +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

[SCEV] Introduce ScalarEvolution::getOne and getZero.

2015-09-23 01:59:04 +00:00

Makefile

…

SLPVectorizer.cpp

[SLP] Don't vectorize loads of non-packed types (like i1, i2).

2015-09-30 21:05:43 +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