Progress towards shepherding debug info through SelectionDAG.
No functional effect yet. This is still evolving and should
not be viewed as final.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98195 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/X86/X86ISelLowering.cpp b/lib/Target/X86/X86ISelLowering.cpp
index 0cfcbb6..1416a6d 100644
--- a/lib/Target/X86/X86ISelLowering.cpp
+++ b/lib/Target/X86/X86ISelLowering.cpp
@@ -8521,6 +8521,21 @@
F->DeleteMachineInstr(MI); // The pseudo instruction is gone now.
return BB;
}
+ // DBG_VALUE. Only the frame index case is done here.
+ case X86::DBG_VALUE: {
+ const TargetInstrInfo *TII = getTargetMachine().getInstrInfo();
+ DebugLoc DL = MI->getDebugLoc();
+ X86AddressMode AM;
+ MachineFunction *F = BB->getParent();
+ AM.BaseType = X86AddressMode::FrameIndexBase;
+ AM.Base.FrameIndex = MI->getOperand(0).getImm();
+ addFullAddress(BuildMI(BB, DL, TII->get(X86::DBG_VALUE)), AM).
+ addImm(MI->getOperand(1).getImm()).
+ addMetadata(MI->getOperand(2).getMetadata());
+ F->DeleteMachineInstr(MI); // Remove pseudo.
+ return BB;
+ }
+
// String/text processing lowering.
case X86::PCMPISTRM128REG:
return EmitPCMP(MI, BB, 3, false /* in-mem */);