diff options
| 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 | 74c376529101acbe141a256d0bf23a44eb454c84 (patch) | |
| tree | 1876d85236de9f0268a586dcedb5e9cfb6d4167d /lib/CodeGen/SelectionDAG/SelectionDAG.cpp | |
| parent | bc99be10b815e0bfc5102bd5746e9a80feebf6f4 (diff) | |
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!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60800 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/SelectionDAG/SelectionDAG.cpp')
| -rw-r--r-- | lib/CodeGen/SelectionDAG/SelectionDAG.cpp | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp index 979dea0d7f..bb3b42c383 100644 --- a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp +++ b/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"; |