Author: pingbak
Date: Wed Aug 8 18:23:31 2007
New Revision: 40955
URL: http://llvm.org/viewvc/llvm-project?rev=40955&view=rev
Log:
If a target really needs to custom lower constants, it should be allowed
to do so.
Modified:
llvm/trunk/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
Modified: llvm/trunk/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
URL:
http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp?rev=40955&r1=40954&r2=40955&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp (original)
+++ llvm/trunk/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp Wed Aug 8 18:23:31 2007
@@ -965,13 +965,21 @@
}
break;
- case ISD::Constant:
+ case ISD::Constant: {
+ ConstantSDNode *CN = cast<ConstantSDNode>(Node);
+ unsigned opAction =
+ TLI.getOperationAction(ISD::Constant, CN->getValueType(0));
+
// We know we don't need to expand constants here, constants only have one
// value and we check that it is fine above.
- // FIXME: Maybe we should handle things like targets that don't support
full
- // 32-bit immediates?
+ if (opAction == TargetLowering::Custom) {
+ Tmp1 = TLI.LowerOperation(Result, DAG);
+ if (Tmp1.Val)
+ Result = Tmp1;
+ }
break;
+ }
case ISD::ConstantFP: {
// Spill FP immediates to the constant pool if the target cannot directly
// codegen them. Targets often have some immediate values that can be
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