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| author | David L. Jones <dlj@google.com> | 2018-01-12 00:17:38 +0000 |
|---|---|---|
| committer | David L. Jones <dlj@google.com> | 2018-01-12 00:17:38 +0000 |
| commit | 8c87213c2651c040bf36aed2b0c49ca7139619b1 (patch) | |
| tree | a816a4492a7e59080404315fcf59d354978571eb /llvm/lib | |
| parent | 1af6c114cc3675866d229e3c1d496f2128744482 (diff) | |
| download | bcm5719-llvm-8c87213c2651c040bf36aed2b0c49ca7139619b1.tar.gz bcm5719-llvm-8c87213c2651c040bf36aed2b0c49ca7139619b1.zip | |
Revert r322279 due to Skylake miscompile.
Summary:
This revision causes Skylake (and apparently, only Skylake) codegen to fail in
certain cases. Details: https://bugs.llvm.org/show_bug.cgi?id=35918
Subscribers: sanjoy, llvm-commits
Differential Revision: https://reviews.llvm.org/D41972
llvm-svn: 322335
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/Target/X86/X86ISelLowering.cpp | 11 |
1 files changed, 0 insertions, 11 deletions
diff --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp index 44815757515..998f6e2af49 100644 --- a/llvm/lib/Target/X86/X86ISelLowering.cpp +++ b/llvm/lib/Target/X86/X86ISelLowering.cpp @@ -5940,17 +5940,6 @@ static bool getFauxShuffleMask(SDValue N, SmallVectorImpl<int> &Mask, unsigned Opcode = N.getOpcode(); switch (Opcode) { - case ISD::VECTOR_SHUFFLE: { - // Don't treat ISD::VECTOR_SHUFFLE as a target shuffle so decode it here. - ArrayRef<int> ShuffleMask = cast<ShuffleVectorSDNode>(N)->getMask(); - if (isUndefOrInRange(ShuffleMask, 0, 2 * NumElts)) { - Mask.append(ShuffleMask.begin(), ShuffleMask.end()); - Ops.push_back(N.getOperand(0)); - Ops.push_back(N.getOperand(1)); - return true; - } - return false; - } case ISD::AND: case X86ISD::ANDNP: { // Attempt to decode as a per-byte mask. |
