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| author | Michael Zolotukhin <mzolotukhin@apple.com> | 2015-09-30 21:05:43 +0000 |
|---|---|---|
| committer | Michael Zolotukhin <mzolotukhin@apple.com> | 2015-09-30 21:05:43 +0000 |
| commit | fc783e91e0c0696ec5b3a990a7ac91bd751e370d (patch) | |
| tree | 3b24127aa0f733436e672638b5d9814499269f29 /llvm/test/Transforms/CodeExtractor | |
| parent | 757908e545e720a13c5391ce2eb399c4026859e2 (diff) | |
| download | bcm5719-llvm-fc783e91e0c0696ec5b3a990a7ac91bd751e370d.tar.gz bcm5719-llvm-fc783e91e0c0696ec5b3a990a7ac91bd751e370d.zip | |
[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
llvm-svn: 248943
Diffstat (limited to 'llvm/test/Transforms/CodeExtractor')
0 files changed, 0 insertions, 0 deletions
