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Handle debug info for i128 constants.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133821 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Devang Patel
2011-06-24 20:46:11 +00:00
parent f5fa52ed06
commit 8594d429e0
13 changed files with 166 additions and 63 deletions
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2
lib/CodeGen/AsmPrinter/AsmPrinter.cpp
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@@ -575,6 +575,8 @@ static bool EmitDebugValueComment(const MachineInstr *MI, AsmPrinter &AP) {
}
} else if (MI->getOperand(0).isImm()) {
OS << MI->getOperand(0).getImm();
} else if (MI->getOperand(0).isCImm()) {
MI->getOperand(0).getCImm()->getValue().print(OS, false /*isSigned*/);
} else {
assert(MI->getOperand(0).isReg() && "Unknown operand type");
if (MI->getOperand(0).getReg() == 0) {

2
lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp
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@@ -491,7 +491,7 @@ bool CompileUnit::addConstantFPValue(DIE *Die, const MachineOperand &MO) {
}
/// addConstantValue - Add constant value entry in variable DIE.
bool CompileUnit::addConstantValue(DIE *Die, ConstantInt *CI,
bool CompileUnit::addConstantValue(DIE *Die, const ConstantInt *CI,
bool Unsigned) {
unsigned CIBitWidth = CI->getBitWidth();
if (CIBitWidth <= 64) {

2
lib/CodeGen/AsmPrinter/DwarfCompileUnit.h
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@@ -181,7 +181,7 @@ public:
/// addConstantValue - Add constant value entry in variable DIE.
bool addConstantValue(DIE *Die, const MachineOperand &MO, DIType Ty);
bool addConstantValue(DIE *Die, ConstantInt *CI, bool Unsigned);
bool addConstantValue(DIE *Die, const ConstantInt *CI, bool Unsigned);
/// addConstantFPValue - Add constant value entry in variable DIE.
bool addConstantFPValue(DIE *Die, const MachineOperand &MO);

38
lib/CodeGen/AsmPrinter/DwarfDebug.cpp
View File

@@ -618,6 +618,21 @@ DIE *DwarfDebug::constructInlinedScopeDIE(DbgScope *Scope) {
return ScopeDIE;
}
/// 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;
}
/// constructVariableDIE - Construct a DIE for the given DbgVariable.
DIE *DwarfDebug::constructVariableDIE(DbgVariable *DV, DbgScope *Scope) {
@@ -718,6 +733,11 @@ DIE *DwarfDebug::constructVariableDIE(DbgVariable *DV, DbgScope *Scope) {
else if (DVInsn->getOperand(0).isFPImm())
updated =
VariableCU->addConstantFPValue(VariableDie, DVInsn->getOperand(0));
else if (DVInsn->getOperand(0).isCImm())
updated =
VariableCU->addConstantValue(VariableDie,
DVInsn->getOperand(0).getCImm(),
isUnsignedDIType(DV->getType()));
} else {
VariableCU->addVariableAddress(DV, VariableDie,
Asm->getDebugValueLocation(DVInsn));
@@ -913,22 +933,6 @@ 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;
}
// Return const exprssion if value is a GEP to access merged global
// constant. e.g.
// i8* getelementptr ({ i8, i8, i8, i8 }* @_MergedGlobals, i32 0, i32 0)
@@ -1017,7 +1021,7 @@ void DwarfDebug::constructGlobalVariableDIE(const MDNode *N) {
} else {
TheCU->addBlock(VariableDIE, dwarf::DW_AT_location, 0, Block);
}
} else if (ConstantInt *CI =
} else if (const ConstantInt *CI =
dyn_cast_or_null<ConstantInt>(GV.getConstant()))
TheCU->addConstantValue(VariableDIE, CI, isUnsignedDIType(GTy));
else if (const ConstantExpr *CE = getMergedGlobalExpr(N->getOperand(11))) {