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Differential D3373 Diff 12002 lib/IR/DebugInfo.cpp

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lib/IR/DebugInfo.cpp

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// //
//===----------------------------------------------------------------------===// //===----------------------------------------------------------------------===//
#include "llvm/IR/DebugInfo.h"
#include "LLVMContextImpl.h" #include "LLVMContextImpl.h"
#include "llvm/ADT/STLExtras.h" #include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/SmallPtrSet.h" #include "llvm/ADT/SmallPtrSet.h"
#include "llvm/ADT/SmallString.h" #include "llvm/ADT/SmallString.h"
#include "llvm/Analysis/ValueTracking.h" #include "llvm/Analysis/ValueTracking.h"
#include "llvm/IR/Constants.h" #include "llvm/IR/Constants.h"
#include "llvm/IR/DIBuilder.h"
#include "llvm/IR/DebugInfo.h"
#include "llvm/IR/DerivedTypes.h" #include "llvm/IR/DerivedTypes.h"
#include "llvm/IR/Instructions.h" #include "llvm/IR/Instructions.h"
#include "llvm/IR/IntrinsicInst.h" #include "llvm/IR/IntrinsicInst.h"
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/// getInlinedAt - If this variable is inlined then return inline location. /// getInlinedAt - If this variable is inlined then return inline location.
MDNode *DIVariable::getInlinedAt() const { return getNodeField(DbgNode, 7); } MDNode *DIVariable::getInlinedAt() const { return getNodeField(DbgNode, 7); }
bool DIVariable::isVariablePiece() const {
return hasComplexAddress() && getAddrElement(0) == DIBuilder::OpPiece;
}
uint64_t DIVariable::getPieceOffset() const {
assert(isVariablePiece());
return getAddrElement(1);
}
uint64_t DIVariable::getPieceSize() const {
assert(isVariablePiece());
return getAddrElement(2);
}
/// Return the size reported by the variable's type.
unsigned DIVariable::getSizeInBits(const DITypeIdentifierMap &Map) {
DIType Ty = getType().resolve(Map);
// Follow derived types until we reach a type that
// reports back a size.
while (Ty.isDerivedType() && !Ty.isCompositeType()) {
DIDerivedType DT(&*Ty);
Ty = DT.getTypeDerivedFrom().resolve(Map);
}
assert(Ty.getSizeInBits() && "type with size 0");
return Ty.getSizeInBits();
}
//===----------------------------------------------------------------------===// //===----------------------------------------------------------------------===//
// Predicates // Predicates
//===----------------------------------------------------------------------===// //===----------------------------------------------------------------------===//
echristoUnsubmitted
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This needs a comment of how and why it's used.

echristo: This needs a comment of how and why it's used.
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return DIVariable(MDNode::get(VMContext, Elts)); return DIVariable(MDNode::get(VMContext, Elts));
} }
/// getEntireVariable - Remove OpPiece exprs from the variable.
DIVariable llvm::getEntireVariable(DIVariable DV) {
if (!DV.isVariablePiece())
return DV;
SmallVector<Value *, 8> Elts;
for (unsigned i = 0; i < 8; ++i)
Elts.push_back(DV->getOperand(i));
return DIVariable(MDNode::get(DV->getContext(), Elts));
}
/// getDISubprogram - Find subprogram that is enclosing this scope. /// getDISubprogram - Find subprogram that is enclosing this scope.
DISubprogram llvm::getDISubprogram(const MDNode *Scope) { DISubprogram llvm::getDISubprogram(const MDNode *Scope) {
DIDescriptor D(Scope); DIDescriptor D(Scope);
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OS << " [" << Res << ']'; OS << " [" << Res << ']';
OS << " [line " << getLineNumber() << ']'; OS << " [line " << getLineNumber() << ']';
if (isVariablePiece())
OS << " [piece, size " << getPieceSize()
<< ", offset " << getPieceOffset() << ']';
} }
void DIObjCProperty::printInternal(raw_ostream &OS) const { void DIObjCProperty::printInternal(raw_ostream &OS) const {
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