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Handle qualified constants that are directly folded by FE.

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PR 7920.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111820 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Devang Patel
2010-08-23 18:25:56 +00:00
parent 30dc1ee78a
commit 0c4720c6bd
3 changed files with 32 additions and 6 deletions
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22
lib/CodeGen/AsmPrinter/DwarfDebug.cpp
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@ -1861,6 +1861,21 @@ CompileUnit *DwarfDebug::getCompileUnit(const MDNode *N) const {
return I->second;
}
/// isUnsignedDIType - Return true if type encoding is unsigned.
static bool isUnsignedDIType(DIType Ty) {
DIDerivedType DTy(Ty);
if (DTy.Verify())
return isUnsignedDIType(DTy.getTypeDerivedFrom());
DIBasicType BTy(Ty);
if (BTy.Verify()) {
unsigned Encoding = BTy.getEncoding();
if (Encoding == dwarf::DW_ATE_unsigned ||
Encoding == dwarf::DW_ATE_unsigned_char)
return true;
}
return false;
}
/// constructGlobalVariableDIE - Construct global variable DIE.
void DwarfDebug::constructGlobalVariableDIE(const MDNode *N) {
@ -1930,17 +1945,12 @@ void DwarfDebug::constructGlobalVariableDIE(const MDNode *N) {
}
} else if (Constant *C = GV.getConstant()) {
if (ConstantInt *CI = dyn_cast<ConstantInt>(C)) {
DIBasicType BTy(GTy);
if (BTy.Verify()) {
unsigned Encoding = BTy.getEncoding();
if (Encoding == dwarf::DW_ATE_unsigned ||
Encoding == dwarf::DW_ATE_unsigned_char)
if (isUnsignedDIType(GTy))
addUInt(VariableDIE, dwarf::DW_AT_const_value, dwarf::DW_FORM_udata,
CI->getZExtValue());
else
addSInt(VariableDIE, dwarf::DW_AT_const_value, dwarf::DW_FORM_sdata,
CI->getSExtValue());
}
}
}
return;