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Print variable scope name in DEBUG_VALUE comment. Useful in some cases. e.g.

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##DEBUG_VALUE: runOnMachineFunction:this <- RDI+0
	##DEBUG_VALUE: runOnMachineFunction:fn <- RSI+0
	##DEBUG_VALUE: DeadDefs <- undef ## SimpleRegisterCoalescing.cpp:2706
	##DEBUG_VALUE: getRegInfo:this <- [%rsp+$56]+$0
	##DEBUG_VALUE: getTarget:this <- [%rsp+$56]+$0

llvm-svn: 102655
This commit is contained in:
Devang Patel 2010-04-29 18:52:10 +00:00
parent 8ea213f823
commit c34efcfee7
2 changed files with 4 additions and 0 deletions
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2
lib/CodeGen/AsmPrinter/AsmPrinter.cpp
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@ -502,6 +502,8 @@ static bool EmitDebugValueComment(const MachineInstr *MI, AsmPrinter &AP) {
// cast away const; DIetc do not take const operands for some reason.
DIVariable V(const_cast<MDNode*>(MI->getOperand(2).getMetadata()));
if (V.getContext().isSubprogram())
OS << DISubprogram(V.getContext().getNode()).getDisplayName() << ":";
OS << V.getName() << " <- ";
// Register or immediate value. Register 0 means undef.

2
lib/Target/X86/AsmPrinter/X86MCInstLower.cpp
View File

@ -345,6 +345,8 @@ void X86AsmPrinter::PrintDebugValueComment(const MachineInstr *MI,
O << '\t' << MAI->getCommentString() << "DEBUG_VALUE: ";
// cast away const; DIetc do not take const operands for some reason.
DIVariable V(const_cast<MDNode *>(MI->getOperand(NOps-1).getMetadata()));
if (V.getContext().isSubprogram())
O << DISubprogram(V.getContext().getNode()).getDisplayName() << ":";
O << V.getName();
O << " <- ";
// Frame address. Currently handles register +- offset only.