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Use the interface through DIDescriptor to get the tag/version for a debug info

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MDNode.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159317 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Bill Wendling 2012-06-28 00:41:44 +00:00
parent d7df6cf8d0
commit 58a6cf2c62
1 changed files with 11 additions and 9 deletions
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20
lib/VMCore/AsmWriter.cpp
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@ -20,6 +20,7 @@
#include "llvm/LLVMContext.h"
#include "llvm/CallingConv.h"
#include "llvm/Constants.h"
#include "llvm/DebugInfo.h"
#include "llvm/DerivedTypes.h"
#include "llvm/InlineAsm.h"
#include "llvm/IntrinsicInst.h"
@ -2031,20 +2032,21 @@ static void WriteMDNodeComment(const MDNode *Node,
formatted_raw_ostream &Out) {
if (Node->getNumOperands() < 1)
return;
ConstantInt *CI = dyn_cast_or_null<ConstantInt>(Node->getOperand(0));
if (!CI) return;
APInt Val = CI->getValue();
APInt Tag = Val & ~APInt(Val.getBitWidth(), LLVMDebugVersionMask);
if (Val.ult(LLVMDebugVersion11))
Value *Op = Node->getOperand(0);
if (!Op || !isa<ConstantInt>(Op) || cast<ConstantInt>(Op)->getBitWidth() < 32)
return;
DIDescriptor Desc(Node);
if (Desc.getVersion() < LLVMDebugVersion11)
return;
unsigned Tag = Desc.getTag();
Out.PadToColumn(50);
if (Tag == dwarf::DW_TAG_user_base)
Out << "; [ DW_TAG_user_base ]";
else if (Tag.isIntN(32)) {
if (const char *TagName = dwarf::TagString(Tag.getZExtValue()))
Out << "; [ " << TagName << " ]";
}
else if (const char *TagName = dwarf::TagString(Tag))
Out << "; [ " << TagName << " ]";
}
void AssemblyWriter::writeAllMDNodes() {