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| author | David Green <david.green@arm.com> | 2020-08-03 22:03:14 +0100 |
|---|---|---|
| committer | David Green <david.green@arm.com> | 2020-08-03 22:03:14 +0100 |
| commit | 22916481c11e1d46132752086290a668e62fc9ce (patch) | |
| tree | 8c8aa7199a63229ad9a031c8914cb04afdce97b6 /clang/lib/Frontend/CompilerInvocation.cpp | |
| parent | cb327922101b28ea70ec68d7f026da0e5e388eed (diff) | |
| download | llvm-22916481c11e1d46132752086290a668e62fc9ce.zip llvm-22916481c11e1d46132752086290a668e62fc9ce.tar.gz llvm-22916481c11e1d46132752086290a668e62fc9ce.tar.bz2 | |
[ARM] Convert VPSEL to VMOV in tail predicated loops
VPSEL has slightly different semantics under tail predication (it can
end up selecting from Qn, Qm and Qd). We do not model that at the moment
so they block tail predicated loops from being formed.
This just converts them into a predicated VMOV instead (via a VORR),
allowing tail predication to happen whilst still modelling the original
behaviour of the input.
Differential Revision: https://reviews.llvm.org/D85110
Diffstat (limited to 'clang/lib/Frontend/CompilerInvocation.cpp')
0 files changed, 0 insertions, 0 deletions