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better constant handling, should fix many remaining cases

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19984 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Andrew Lenharth 2005-02-02 00:51:15 +00:00
parent 270e851c59
commit 22d5a41f9a
1 changed files with 11 additions and 2 deletions
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13
lib/Target/Alpha/AlphaISelPattern.cpp
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@ -1021,8 +1021,17 @@ unsigned ISel::SelectExpr(SDOperand N) {
case ISD::Constant:
{
long val = cast<ConstantSDNode>(N)->getValue();
BuildMI(BB, Alpha::LOAD_IMM, 1, Result).addImm(val);
unsigned long val = cast<ConstantSDNode>(N)->getValue();
if (val < 32000 && (long)val > -32000)
BuildMI(BB, Alpha::LOAD_IMM, 1, Result).addImm(val);
else
{
MachineConstantPool *CP = BB->getParent()->getConstantPool();
ConstantUInt *C = ConstantUInt::get(Type::getPrimitiveType(Type::ULongTyID) , val);
unsigned CPI = CP->getConstantPoolIndex(C);
AlphaLowering.restoreGP(BB);
BuildMI(BB, Alpha::LOAD, 1, Result).addConstantPoolIndex(CPI);
}
return Result;
}