diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/CodeGen/SelectionDAG/InstrEmitter.cpp | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/lib/CodeGen/SelectionDAG/InstrEmitter.cpp b/lib/CodeGen/SelectionDAG/InstrEmitter.cpp index e439347228..2a65d65f4f 100644 --- a/lib/CodeGen/SelectionDAG/InstrEmitter.cpp +++ b/lib/CodeGen/SelectionDAG/InstrEmitter.cpp @@ -76,6 +76,12 @@ EmitCopyFromReg(SDNode *Node, unsigned ResNo, bool IsClone, bool IsCloned, // the CopyToReg'd destination register instead of creating a new vreg. bool MatchReg = true; const TargetRegisterClass *UseRC = NULL; + EVT VT = Node->getValueType(ResNo); + + // Stick to the preferred register classes for legal types. + if (TLI->isTypeLegal(VT)) + UseRC = TLI->getRegClassFor(VT); + if (!IsClone && !IsCloned) for (SDNode::use_iterator UI = Node->use_begin(), E = Node->use_end(); UI != E; ++UI) { @@ -121,10 +127,9 @@ EmitCopyFromReg(SDNode *Node, unsigned ResNo, bool IsClone, bool IsCloned, break; } - EVT VT = Node->getValueType(ResNo); const TargetRegisterClass *SrcRC = 0, *DstRC = 0; SrcRC = TRI->getMinimalPhysRegClass(SrcReg, VT); - + // Figure out the register class to create for the destreg. if (VRBase) { DstRC = MRI->getRegClass(VRBase); |