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| author | Arnold Schwaighofer <aschwaighofer@apple.com> | 2014-05-04 17:10:15 +0000 |
|---|---|---|
| committer | Arnold Schwaighofer <aschwaighofer@apple.com> | 2014-05-04 17:10:15 +0000 |
| commit | 28a739b4dcd88fc55adc521d2017a831ca7286c9 (patch) | |
| tree | a412a6bbc9aa990818e486e43176434bf4cd72cf /test/Transforms/LoopUnroll | |
| parent | 8a3751f8132e8b0ef8fa35bfcc0f13029595c266 (diff) | |
| download | llvm-28a739b4dcd88fc55adc521d2017a831ca7286c9.tar.gz llvm-28a739b4dcd88fc55adc521d2017a831ca7286c9.tar.bz2 llvm-28a739b4dcd88fc55adc521d2017a831ca7286c9.tar.xz | |
SLPVectorizer: Bring back the insertelement patch (r205965) with fixes
When can't assume a vectorized tree is rooted in an instruction. The IRBuilder
could have constant folded it. When we rebuild the build_vector (the series of
InsertElement instructions) use the last original InsertElement instruction. The
vectorized tree root is guaranteed to be before it.
Also, we can't assume that the n-th InsertElement inserts the n-th element into
a vector.
This reverts r207746 which reverted the revert of the revert of r205018 or so.
Fixes the test case in PR19621.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207939 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Transforms/LoopUnroll')
0 files changed, 0 insertions, 0 deletions