| commit | 8e31acf8ca0db5e6160d85e266432f78148d38f5 | |
| author | Nabeel Omer <nabeel.omer@sony.com> | |
| Tue, 24 Oct 2023 14:03:43 +0000 (24 15:03 +0100) | ||
| committer | GitHub <noreply@github.com> | |
| Tue, 24 Oct 2023 14:03:43 +0000 (24 15:03 +0100) | ||
| tree | be20eae7824fe5c55937999ed9248c3c18456e69 | treesnapshot (tar.gz zip) |
| parent | 254558ac53e7d5c14b73f38d9ddb2272ececcbd6 | commitdiff |
[VectorCombine] Add special handling for truncating shuffles (#70013)
When dealing with a truncating shuffle, we can end up in a situation
where the type passed to getShuffleCost is the type of the result of the
shuffle, and the mask references an element which is out of bounds of
the result vector.
If dealing with truncating shuffles, pass the type of the input vectors
to `getShuffleCost()` in order to avoid an out-of-bounds assertion.
When dealing with a truncating shuffle, we can end up in a situation
where the type passed to getShuffleCost is the type of the result of the
shuffle, and the mask references an element which is out of bounds of
the result vector.
If dealing with truncating shuffles, pass the type of the input vectors
to `getShuffleCost()` in order to avoid an out-of-bounds assertion.
| llvm/lib/Transforms/Vectorize/VectorCombine.cpp | diffblobblamehistory | |
| llvm/test/Transforms/VectorCombine/X86/reduction-two-vecs-combine.ll | diffblobblamehistory |