diff options
| author | Andrew Lenharth <andrewl@lenharth.org> | 2008-10-07 17:09:16 +0000 |
|---|---|---|
| committer | Andrew Lenharth <andrewl@lenharth.org> | 2008-10-07 17:09:16 +0000 |
| commit | 1ad0c8201b119d4d90a837dd622b61eedf1648ea (patch) | |
| tree | 8424c9bc95cb9ed2e3d46a10d978dec65dda3ff0 | |
| parent | 5c9cc1392cfdea2281431de987f32545a3491fb6 (diff) | |
Use ADDC if it is valid at any smaller size. Do it right this time
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57248 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/CodeGen/SelectionDAG/LegalizeDAG.cpp | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp index 428e161f99..b353569c1f 100644 --- a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp +++ b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp @@ -6445,14 +6445,17 @@ void SelectionDAGLegalize::ExpandOp(SDValue Op, SDValue &Lo, SDValue &Hi){ unsigned OpV = Node->getOpcode() == ISD::ADD ? ISD::ADDC : ISD::SUBC; bool hasCarry = false; if (NVT == MVT::i64) - hasCarry |= TLI.isOperationLegal(OpV, MVT::i32) + hasCarry |= TLI.isOperationLegal(OpV, MVT::i64) + | TLI.isOperationLegal(OpV, MVT::i32) | TLI.isOperationLegal(OpV, MVT::i16) | TLI.isOperationLegal(OpV, MVT::i8); if (NVT == MVT::i32) - hasCarry |= TLI.isOperationLegal(OpV, MVT::i16) + hasCarry |= TLI.isOperationLegal(OpV, MVT::i32) + | TLI.isOperationLegal(OpV, MVT::i16) | TLI.isOperationLegal(OpV, MVT::i8); if (NVT == MVT::i16) - hasCarry |= TLI.isOperationLegal(OpV, MVT::i8); + hasCarry |= TLI.isOperationLegal(OpV, MVT::i16) + | TLI.isOperationLegal(OpV, MVT::i8); if(hasCarry) { if (Node->getOpcode() == ISD::ADD) { |