Preliminary ARM debug support based on patch by Mikael of FlexyCore.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60851 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/ARM/ARMISelDAGToDAG.cpp b/lib/Target/ARM/ARMISelDAGToDAG.cpp
index ac3abe6..537f6fa 100644
--- a/lib/Target/ARM/ARMISelDAGToDAG.cpp
+++ b/lib/Target/ARM/ARMISelDAGToDAG.cpp
@@ -12,9 +12,10 @@
//===----------------------------------------------------------------------===//
#include "ARM.h"
+#include "ARMAddressingModes.h"
+#include "ARMConstantPoolValue.h"
#include "ARMISelLowering.h"
#include "ARMTargetMachine.h"
-#include "ARMAddressingModes.h"
#include "llvm/CallingConv.h"
#include "llvm/Constants.h"
#include "llvm/DerivedTypes.h"
@@ -821,11 +822,46 @@
break;
case MVT::f64:
Opc = ARM::FNEGDcc;
- break;
+ break;
}
return CurDAG->SelectNodeTo(Op.getNode(), Opc, VT, Ops, 5);
}
+
+ case ISD::DECLARE: {
+ SDValue Chain = Op.getOperand(0);
+ SDValue N1 = Op.getOperand(1);
+ SDValue N2 = Op.getOperand(2);
+ FrameIndexSDNode *FINode = dyn_cast<FrameIndexSDNode>(N1);
+ if (!FINode)
+ break;
+ if (N2.getOpcode() == ARMISD::PIC_ADD && isa<LoadSDNode>(N2.getOperand(0)))
+ N2 = N2.getOperand(0);
+ LoadSDNode *Ld = dyn_cast<LoadSDNode>(N2);
+ if (!Ld)
+ break;
+ SDValue BasePtr = Ld->getBasePtr();
+ assert(BasePtr.getOpcode() == ARMISD::Wrapper &&
+ isa<ConstantPoolSDNode>(BasePtr.getOperand(0)) &&
+ "llvm.dbg.variable should be a constantpool node");
+ ConstantPoolSDNode *CP = cast<ConstantPoolSDNode>(BasePtr.getOperand(0));
+ GlobalValue *GV = 0;
+ if (CP->isMachineConstantPoolEntry()) {
+ ARMConstantPoolValue *ACPV = (ARMConstantPoolValue*)CP->getMachineCPVal();
+ GV = ACPV->getGV();
+ } else
+ GV = dyn_cast<GlobalValue>(CP->getConstVal());
+ if (GV) {
+ SDValue Tmp1 = CurDAG->getTargetFrameIndex(FINode->getIndex(),
+ TLI.getPointerTy());
+ SDValue Tmp2 = CurDAG->getTargetGlobalAddress(GV, TLI.getPointerTy());
+ SDValue Ops[] = { Tmp1, Tmp2, Chain };
+ return CurDAG->getTargetNode(TargetInstrInfo::DECLARE,
+ MVT::Other, Ops, 3);
+ }
+ break;
}
+ }
+
return SelectCode(Op);
}