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| author | Jessica Paquette <jpaquette@apple.com> | 2019-02-18 23:33:24 +0000 |
|---|---|---|
| committer | Jessica Paquette <jpaquette@apple.com> | 2019-02-18 23:33:24 +0000 |
| commit | b53e0f4b81155e7f316a9ad91201ee27727b5d10 (patch) | |
| tree | 4ea4afcf148fc953a248597d2ff0301da0c63d2c /llvm/lib/CodeGen/GlobalISel | |
| parent | d8b4efcb6b4a3408da72e45b4e4225b751065ac9 (diff) | |
| download | bcm5719-llvm-b53e0f4b81155e7f316a9ad91201ee27727b5d10.tar.gz bcm5719-llvm-b53e0f4b81155e7f316a9ad91201ee27727b5d10.zip | |
[GlobalISel][AArch64] Legalize + select some llvm.ctlz.* intrinsics
Legalize/select llvm.ctlz.*
Add select-ctlz to show that we actually select them. Update arm64-clrsb.ll and
arm64-vclz.ll to show that we perform valid transformations in optimized builds,
and document where GISel can improve.
Differential Revision: https://reviews.llvm.org/D58155
llvm-svn: 354299
Diffstat (limited to 'llvm/lib/CodeGen/GlobalISel')
| -rw-r--r-- | llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp b/llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp index 38f0e221431..614a67f45fd 100644 --- a/llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp +++ b/llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp @@ -2099,6 +2099,7 @@ LegalizerHelper::fewerElementsVector(MachineInstr &MI, unsigned TypeIdx, case G_FSIN: case G_FSQRT: case G_BSWAP: + case G_CTLZ: return fewerElementsVectorBasic(MI, TypeIdx, NarrowTy); case G_SHL: case G_LSHR: |
