forked from OSchip/llvm-project
Make a provision to encode inline location in a variable. This will enable dwarf writer to easily distinguish between two instances of a inlined variable in one basic block.
llvm-svn: 135457
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206f5093e3
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@ -628,7 +628,9 @@ namespace llvm {
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uint64_t getAddrElement(unsigned Idx) const {
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if (getVersion() <= llvm::LLVMDebugVersion8)
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return getUInt64Field(Idx+6);
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if (getVersion() == llvm::LLVMDebugVersion9)
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return getUInt64Field(Idx+7);
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return getUInt64Field(Idx+8);
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}
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/// isBlockByrefVariable - Return true if the variable was declared as
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@ -716,6 +718,13 @@ namespace llvm {
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/// suitable to hold function specific information.
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NamedMDNode *getFnSpecificMDNode(const Module &M, StringRef Name);
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/// createInlinedVariable - Create a new inlined variable based on current
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/// variable.
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/// @param DV Current Variable.
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/// @param InlinedScope Location at current variable is inlined.
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DIVariable createInlinedVariable(MDNode *DV, MDNode *InlinedScope,
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LLVMContext &VMContext);
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class DebugInfoFinder {
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public:
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/// processModule - Process entire module and collect debug info
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@ -22,8 +22,9 @@ namespace llvm {
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// Debug info constants.
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enum {
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LLVMDebugVersion = (9 << 16), // Current version of debug information.
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LLVMDebugVersion8 = (8 << 16), // Cconstant for version 8.
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LLVMDebugVersion = (10 << 16), // Current version of debug information.
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LLVMDebugVersion9 = (9 << 16), // Constant for version 9.
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LLVMDebugVersion8 = (8 << 16), // Constant for version 8.
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LLVMDebugVersion7 = (7 << 16), // Constant for version 7.
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LLVMDebugVersion6 = (6 << 16), // Constant for version 6.
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LLVMDebugVersion5 = (5 << 16), // Constant for version 5.
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@ -626,7 +626,8 @@ DIVariable DIBuilder::createLocalVariable(unsigned Tag, DIDescriptor Scope,
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File,
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ConstantInt::get(Type::getInt32Ty(VMContext), (LineNo | (ArgNo << 24))),
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Ty,
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ConstantInt::get(Type::getInt32Ty(VMContext), Flags)
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ConstantInt::get(Type::getInt32Ty(VMContext), Flags),
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Constant::getNullValue(Type::getInt32Ty(VMContext)),
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};
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MDNode *Node = MDNode::get(VMContext, Elts);
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if (AlwaysPreserve) {
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@ -661,6 +662,7 @@ DIVariable DIBuilder::createComplexVariable(unsigned Tag, DIDescriptor Scope,
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Elts.push_back(ConstantInt::get(Type::getInt32Ty(VMContext), (LineNo | (ArgNo << 24))));
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Elts.push_back(Ty);
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Elts.push_back(llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)));
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Elts.push_back(llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)));
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Elts.append(Addr.begin(), Addr.end());
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return DIVariable(MDNode::get(VMContext, Elts));
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@ -111,7 +111,9 @@ Function *DIDescriptor::getFunctionField(unsigned Elt) const {
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unsigned DIVariable::getNumAddrElements() const {
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if (getVersion() <= llvm::LLVMDebugVersion8)
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return DbgNode->getNumOperands()-6;
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if (getVersion() == llvm::LLVMDebugVersion9)
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return DbgNode->getNumOperands()-7;
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return DbgNode->getNumOperands()-8;
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}
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@ -760,6 +762,19 @@ NamedMDNode *llvm::getOrInsertFnSpecificMDNode(Module &M, StringRef FuncName) {
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return M.getOrInsertNamedMetadata(Name.str());
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}
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/// createInlinedVariable - Create a new inlined variable based on current
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/// variable.
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/// @param DV Current Variable.
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/// @param InlinedScope Location at current variable is inlined.
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DIVariable llvm::createInlinedVariable(MDNode *DV, MDNode *InlinedScope,
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LLVMContext &VMContext) {
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SmallVector<Value *, 16> Elts;
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// Insert inlined scope as 7th element.
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for (unsigned i = 0, e = DV->getNumOperands(); i != e; ++i)
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i == 7 ? Elts.push_back(InlinedScope) :
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Elts.push_back(DV->getOperand(i));
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return DIVariable(MDNode::get(VMContext, Elts));
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}
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//===----------------------------------------------------------------------===//
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// DebugInfoFinder implementations.
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