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| author | David Green <david.green@arm.com> | 2019-11-04 14:06:04 +0000 |
|---|---|---|
| committer | David Green <david.green@arm.com> | 2019-11-04 15:05:41 +0000 |
| commit | 91b0cad8132997060182146b2734065bc807e9fa (patch) | |
| tree | bbc63b21e4ddd0042e7b9f7b50628f33a4b53627 /llvm/lib/Support/VirtualFileSystem.cpp | |
| parent | b556ce3992709e1f6302ca1d4c296f57e83cd6a7 (diff) | |
| download | llvm-91b0cad8132997060182146b2734065bc807e9fa.zip llvm-91b0cad8132997060182146b2734065bc807e9fa.tar.gz llvm-91b0cad8132997060182146b2734065bc807e9fa.tar.bz2 | |
[ARM] Use isFMAFasterThanFMulAndFAdd for MVE
The Arm backend will usually return false for isFMAFasterThanFMulAndFAdd,
where both the fused VFMA.f32 and a non-fused VMLA.f32 are usually
available for scalar code. For MVE we don't have the non-fused version
though. It makes more sense for isFMAFasterThanFMulAndFAdd to return
true, allowing us to simplify some of the existing ISel patterns.
The tests here are that non of the existing tests failed, and so we are
still selecting VFMA and VFMS. The one test that changed shows we can
now select from fast math flags, as opposed to just relying on the
isFMADLegalForFAddFSub option.
Differential Revision: https://reviews.llvm.org/D69115
Diffstat (limited to 'llvm/lib/Support/VirtualFileSystem.cpp')
0 files changed, 0 insertions, 0 deletions