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If a target really needs to custom lower constants, it should be allowed

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to do so.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40955 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Scott Michel 2007-08-08 23:23:31 +00:00
parent 642a9e3436
commit c1513d24ea
1 changed files with 11 additions and 3 deletions

14
lib/CodeGen/SelectionDAG/LegalizeDAG.cpp

@ -965,13 +965,21 @@ SDOperand SelectionDAGLegalize::LegalizeOp(SDOperand Op) {
}
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