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Add support for the abs64 SPARC v9 code model.

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For when 16 TB just isn't enough.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179474 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jakob Stoklund Olesen
2013-04-14 05:10:36 +00:00
parent 87ce01739b
commit 618eda7a60
3 changed files with 29 additions and 0 deletions
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9
lib/Target/Sparc/SparcISelLowering.cpp
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@@ -1410,14 +1410,23 @@ SDValue SparcTargetLowering::makeAddress(SDValue Op, SelectionDAG &DAG) const {
default:
llvm_unreachable("Unsupported absolute code model");
case CodeModel::Small:
// abs32.
return makeHiLoPair(Op, SPII::MO_HI, SPII::MO_LO, DAG);
case CodeModel::Medium: {
// abs44.
SDValue H44 = makeHiLoPair(Op, SPII::MO_H44, SPII::MO_M44, DAG);
H44 = DAG.getNode(ISD::SHL, DL, VT, H44, DAG.getIntPtrConstant(12));
SDValue L44 = withTargetFlags(Op, SPII::MO_L44, DAG);
L44 = DAG.getNode(SPISD::Lo, DL, VT, L44);
return DAG.getNode(ISD::ADD, DL, VT, H44, L44);
}
case CodeModel::Large: {
// abs64.
SDValue Hi = makeHiLoPair(Op, SPII::MO_HH, SPII::MO_HM, DAG);
Hi = DAG.getNode(ISD::SHL, DL, VT, Hi, DAG.getIntPtrConstant(32));
SDValue Lo = makeHiLoPair(Op, SPII::MO_HI, SPII::MO_LO, DAG);
return DAG.getNode(ISD::ADD, DL, VT, Hi, Lo);
}
}
}