Lower addresses of globals
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75960 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/SystemZ/SystemZISelLowering.cpp b/lib/Target/SystemZ/SystemZISelLowering.cpp
index 62bd46b..415ab72 100644
--- a/lib/Target/SystemZ/SystemZISelLowering.cpp
+++ b/lib/Target/SystemZ/SystemZISelLowering.cpp
@@ -65,6 +65,7 @@
setOperationAction(ISD::BRCOND, MVT::Other, Expand);
setOperationAction(ISD::BR_CC, MVT::i32, Custom);
setOperationAction(ISD::BR_CC, MVT::i64, Custom);
+ setOperationAction(ISD::GlobalAddress, MVT::i64, Custom);
// FIXME: Can we lower these 2 efficiently?
setOperationAction(ISD::SETCC, MVT::i32, Expand);
@@ -87,6 +88,7 @@
case ISD::CALL: return LowerCALL(Op, DAG);
case ISD::BR_CC: return LowerBR_CC(Op, DAG);
case ISD::SELECT_CC: return LowerSELECT_CC(Op, DAG);
+ case ISD::GlobalAddress: return LowerGlobalAddress(Op, DAG);
default:
assert(0 && "unimplemented operand");
return SDValue();
@@ -511,6 +513,16 @@
return DAG.getNode(SystemZISD::SELECT, dl, VTs, &Ops[0], Ops.size());
}
+SDValue SystemZTargetLowering::LowerGlobalAddress(SDValue Op,
+ SelectionDAG &DAG) {
+ DebugLoc dl = Op.getDebugLoc();
+ GlobalValue *GV = cast<GlobalAddressSDNode>(Op)->getGlobal();
+ SDValue GA = DAG.getTargetGlobalAddress(GV, getPointerTy());
+
+ // FIXME: Verify stuff for constant globals entries
+ return DAG.getNode(SystemZISD::PCRelativeWrapper, dl, getPointerTy(), GA);
+}
+
const char *SystemZTargetLowering::getTargetNodeName(unsigned Opcode) const {
switch (Opcode) {
@@ -520,6 +532,7 @@
case SystemZISD::CMP: return "SystemZISD::CMP";
case SystemZISD::UCMP: return "SystemZISD::UCMP";
case SystemZISD::SELECT: return "SystemZISD::SELECT";
+ case SystemZISD::PCRelativeWrapper: return "SystemZISD::PCRelativeWrapper";
default: return NULL;
}
}