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/LegalizeIntegerTypes.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/LegalizeIntegerTypes.cpp')
| -rw-r--r-- | lib/CodeGen/SelectionDAG/LegalizeIntegerTypes.cpp | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/lib/CodeGen/SelectionDAG/LegalizeIntegerTypes.cpp b/lib/CodeGen/SelectionDAG/LegalizeIntegerTypes.cpp index 62fcff392e..10cfdc634b 100644 --- a/lib/CodeGen/SelectionDAG/LegalizeIntegerTypes.cpp +++ b/lib/CodeGen/SelectionDAG/LegalizeIntegerTypes.cpp @@ -92,7 +92,11 @@ void DAGTypeLegalizer::PromoteIntegerResult(SDNode *N, unsigned ResNo) { case ISD::UREM: Result = PromoteIntRes_UDIV(N); break; case ISD::SADDO: - case ISD::UADDO: Result = PromoteIntRes_XADDO(N, ResNo); break; + case ISD::UADDO: + case ISD::SSUBO: + case ISD::USUBO: + case ISD::SMULO: + case ISD::UMULO: Result = PromoteIntRes_XALUO(N, ResNo); break; case ISD::ATOMIC_LOAD_ADD_8: case ISD::ATOMIC_LOAD_SUB_8: @@ -518,7 +522,7 @@ SDValue DAGTypeLegalizer::PromoteIntRes_UDIV(SDNode *N) { return DAG.getNode(N->getOpcode(), LHS.getValueType(), LHS, RHS); } -SDValue DAGTypeLegalizer::PromoteIntRes_XADDO(SDNode *N, unsigned ResNo) { +SDValue DAGTypeLegalizer::PromoteIntRes_XALUO(SDNode *N, unsigned ResNo) { assert(ResNo == 1 && "Only boolean result promotion currently supported!"); // Simply change the return type of the boolean result. |