diff options
Diffstat (limited to 'lib/CodeGen/SelectionDAG/SelectionDAG.cpp')
| -rw-r--r-- | lib/CodeGen/SelectionDAG/SelectionDAG.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp index bb3b42c383..33eddae7f9 100644 --- a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp +++ b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp @@ -1140,6 +1140,10 @@ SDValue SelectionDAG::getCondCode(ISD::CondCode Cond) { SDValue SelectionDAG::getConvertRndSat(MVT VT, SDValue Val, SDValue DTy, SDValue STy, SDValue Rnd, SDValue Sat, ISD::CvtCode Code) { + // If the src and dest types are the same, no conversion is necessary. + if (DTy == STy) + return Val; + FoldingSetNodeID ID; void* IP = 0; if (SDNode *E = CSEMap.FindNodeOrInsertPos(ID, IP)) |