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| author | Simon Pilgrim <llvm-dev@redking.me.uk> | 2019-06-04 10:17:56 +0000 |
|---|---|---|
| committer | Simon Pilgrim <llvm-dev@redking.me.uk> | 2019-06-04 10:17:56 +0000 |
| commit | 3178546a2725e95a1a4a9ca4e99d4af7e4a27da9 (patch) | |
| tree | ac3ef6b5df6c93eb8d6d7d533ae0d7b1dc45155d /llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp | |
| parent | 5d5078e341f593944d9badd53e374e6b319282da (diff) | |
| download | bcm5719-llvm-3178546a2725e95a1a4a9ca4e99d4af7e4a27da9.tar.gz bcm5719-llvm-3178546a2725e95a1a4a9ca4e99d4af7e4a27da9.zip | |
[SelectionDAG] ComputeNumSignBits - clang-format + improve *EXTLOAD comments. NFCI.
Pre-commit requested for D62777.
llvm-svn: 362485
Diffstat (limited to 'llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp b/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp index e30b702ac15..4d854f81de2 100644 --- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp +++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp @@ -3878,13 +3878,13 @@ unsigned SelectionDAG::ComputeNumSignBits(SDValue Op, const APInt &DemandedElts, if (LoadSDNode *LD = dyn_cast<LoadSDNode>(Op)) { unsigned ExtType = LD->getExtensionType(); switch (ExtType) { - default: break; - case ISD::SEXTLOAD: // '17' bits known - Tmp = LD->getMemoryVT().getScalarSizeInBits(); - return VTBits-Tmp+1; - case ISD::ZEXTLOAD: // '16' bits known - Tmp = LD->getMemoryVT().getScalarSizeInBits(); - return VTBits-Tmp; + default: break; + case ISD::SEXTLOAD: // e.g. i16->i32 = '17' bits known. + Tmp = LD->getMemoryVT().getScalarSizeInBits(); + return VTBits - Tmp + 1; + case ISD::ZEXTLOAD: // e.g. i16->i32 = '16' bits known. + Tmp = LD->getMemoryVT().getScalarSizeInBits(); + return VTBits - Tmp; } } } |
