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| author | Bill Wendling <isanbard@gmail.com> | 2008-12-09 22:08:41 +0000 |
|---|---|---|
| committer | Bill Wendling <isanbard@gmail.com> | 2008-12-09 22:08:41 +0000 |
| commit | db8ec2d75a90ef7f0b8ab8b0e5bc78075c4dbe5c (patch) | |
| tree | 843d7a6d39783475665f6d334f01c0515e5d93d1 /llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp | |
| parent | fa9f99aa128266f9b742648884a3be5549fd8e8b (diff) | |
| download | bcm5719-llvm-db8ec2d75a90ef7f0b8ab8b0e5bc78075c4dbe5c.tar.gz bcm5719-llvm-db8ec2d75a90ef7f0b8ab8b0e5bc78075c4dbe5c.zip | |
Add sub/mul overflow intrinsics. This currently doesn't have a
target-independent way of determining overflow on multiplication. It's very
tricky. Patch by Zoltan Varga!
llvm-svn: 60800
Diffstat (limited to 'llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp b/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp index 979dea0d7f0..bb3b42c383f 100644 --- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp +++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp @@ -1511,6 +1511,10 @@ void SelectionDAG::ComputeMaskedBits(SDValue Op, const APInt &Mask, return; case ISD::SADDO: case ISD::UADDO: + case ISD::SSUBO: + case ISD::USUBO: + case ISD::SMULO: + case ISD::UMULO: if (Op.getResNo() != 1) return; // The boolean result conforms to getBooleanContents. Fall through. @@ -1919,6 +1923,10 @@ unsigned SelectionDAG::ComputeNumSignBits(SDValue Op, unsigned Depth) const{ case ISD::SADDO: case ISD::UADDO: + case ISD::SSUBO: + case ISD::USUBO: + case ISD::SMULO: + case ISD::UMULO: if (Op.getResNo() != 1) break; // The boolean result conforms to getBooleanContents. Fall through. @@ -5216,6 +5224,10 @@ std::string SDNode::getOperationName(const SelectionDAG *G) const { case ISD::ADDE: return "adde"; case ISD::SADDO: return "saddo"; case ISD::UADDO: return "uaddo"; + case ISD::SSUBO: return "ssubo"; + case ISD::USUBO: return "usubo"; + case ISD::SMULO: return "smulo"; + case ISD::UMULO: return "umulo"; case ISD::SUBC: return "subc"; case ISD::SUBE: return "sube"; case ISD::SHL_PARTS: return "shl_parts"; |
