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| author | Sanjay Patel <spatel@rotateright.com> | 2022-03-24 10:01:41 -0400 |
|---|---|---|
| committer | Sanjay Patel <spatel@rotateright.com> | 2022-03-24 10:25:16 -0400 |
| commit | 5dbb53b1b4e07a0029569d394cf007a30a0882de (patch) | |
| tree | b3c6f9d06a87ba2a1b9c1a81e4366b3a6049ca74 /clang/lib/CodeGen/CodeGenFunction.cpp | |
| parent | fea3ca5dc8df1755418b60224b876e9bcc7474bb (diff) | |
| download | llvm-5dbb53b1b4e07a0029569d394cf007a30a0882de.zip llvm-5dbb53b1b4e07a0029569d394cf007a30a0882de.tar.gz llvm-5dbb53b1b4e07a0029569d394cf007a30a0882de.tar.bz2 | |
[InstCombine] merge shuffled vector negate and multiply
Add the "(0 - X) --> (X * -1)" reverse identity to the list of alternate form binops.
We need a little hack to make the existing logic work because it does not expect to
move constants from op0 to op1, but the code comment hopefully makes that clear.
I don't think there are any other identities like that.
Fixes #54364
Differential Revision: https://reviews.llvm.org/D122390
Diffstat (limited to 'clang/lib/CodeGen/CodeGenFunction.cpp')
0 files changed, 0 insertions, 0 deletions