Add support for the abs64 SPARC v9 code model.
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
diff --git a/lib/Target/Sparc/SparcISelLowering.cpp b/lib/Target/Sparc/SparcISelLowering.cpp
index 3300368..198d194 100644
--- a/lib/Target/Sparc/SparcISelLowering.cpp
+++ b/lib/Target/Sparc/SparcISelLowering.cpp
@@ -1410,14 +1410,23 @@
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);
+ }
}
}