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Add DIBuilder functions to build RAUWable DIVariables and DIFunctions.

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Summary: These will be used to implement support for useful forward declarartions.

Reviewers: echristo, dblaikie, aprantl

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D5328

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217949 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Frederic Riss
2014-09-17 09:28:34 +00:00
parent c63035aa56
commit 2ca5f03112
2 changed files with 116 additions and 27 deletions
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118
lib/IR/DIBuilder.cpp
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@ -1012,15 +1012,12 @@ DIGlobalVariable DIBuilder::createGlobalVariable(StringRef Name, DIFile F,
Val);
}
/// createStaticVariable - Create a new descriptor for the specified static
/// variable.
DIGlobalVariable DIBuilder::createStaticVariable(DIDescriptor Context,
StringRef Name,
StringRef LinkageName,
DIFile F, unsigned LineNumber,
DITypeRef Ty,
bool isLocalToUnit,
Value *Val, MDNode *Decl) {
static DIGlobalVariable
createStaticVariableHelper(LLVMContext &VMContext, DIDescriptor Context,
StringRef Name, StringRef LinkageName, DIFile F,
unsigned LineNumber, DITypeRef Ty, bool isLocalToUnit,
Value *Val, MDNode *Decl, bool isDefinition,
std::function<MDNode *(ArrayRef<Value *>)> CreateFunc) {
Value *Elts[] = {
GetTagConstant(VMContext, dwarf::DW_TAG_variable),
Constant::getNullValue(Type::getInt32Ty(VMContext)),
@ -1032,13 +1029,47 @@ DIGlobalVariable DIBuilder::createStaticVariable(DIDescriptor Context,
ConstantInt::get(Type::getInt32Ty(VMContext), LineNumber),
Ty,
ConstantInt::get(Type::getInt32Ty(VMContext), isLocalToUnit),
ConstantInt::get(Type::getInt32Ty(VMContext), 1), /* isDefinition*/
ConstantInt::get(Type::getInt32Ty(VMContext), isDefinition),
Val,
DIDescriptor(Decl)
};
MDNode *Node = MDNode::get(VMContext, Elts);
AllGVs.push_back(Node);
return DIGlobalVariable(Node);
return DIGlobalVariable(CreateFunc(Elts));
}
/// createStaticVariable - Create a new descriptor for the specified
/// variable.
DIGlobalVariable DIBuilder::createStaticVariable(DIDescriptor Context,
StringRef Name,
StringRef LinkageName,
DIFile F, unsigned LineNumber,
DITypeRef Ty,
bool isLocalToUnit,
Value *Val, MDNode *Decl) {
return createStaticVariableHelper(VMContext, Context, Name, LinkageName, F,
LineNumber, Ty, isLocalToUnit, Val, Decl, true,
[&] (ArrayRef<Value *> Elts) -> MDNode * {
MDNode *Node = MDNode::get(VMContext, Elts);
AllGVs.push_back(Node);
return Node;
});
}
/// createTempStaticVariableFwdDecl - Create a new temporary descriptor for the
/// specified variable declarartion.
DIGlobalVariable
DIBuilder::createTempStaticVariableFwdDecl(DIDescriptor Context,
StringRef Name,
StringRef LinkageName,
DIFile F, unsigned LineNumber,
DITypeRef Ty,
bool isLocalToUnit,
Value *Val, MDNode *Decl) {
return createStaticVariableHelper(VMContext, Context, Name, LinkageName, F,
LineNumber, Ty, isLocalToUnit, Val, Decl, false,
[&] (ArrayRef<Value *> Elts) {
return MDNode::getTemporary(VMContext, Elts);
});
}
/// createVariable - Create a new descriptor for the specified variable.
@ -1139,14 +1170,13 @@ DISubprogram DIBuilder::createFunction(DIScopeRef Context, StringRef Name,
Flags, isOptimized, Fn, TParams, Decl);
}
/// createFunction - Create a new descriptor for the specified function.
DISubprogram DIBuilder::createFunction(DIDescriptor Context, StringRef Name,
StringRef LinkageName, DIFile File,
unsigned LineNo, DICompositeType Ty,
bool isLocalToUnit, bool isDefinition,
unsigned ScopeLine, unsigned Flags,
bool isOptimized, Function *Fn,
MDNode *TParams, MDNode *Decl) {
static DISubprogram
createFunctionHelper(LLVMContext &VMContext, DIDescriptor Context, StringRef Name,
StringRef LinkageName, DIFile File, unsigned LineNo,
DICompositeType Ty, bool isLocalToUnit, bool isDefinition,
unsigned ScopeLine, unsigned Flags, bool isOptimized,
Function *Fn, MDNode *TParams, MDNode *Decl,
std::function<MDNode *(ArrayRef<Value *>)> CreateFunc) {
assert(Ty.getTag() == dwarf::DW_TAG_subroutine_type &&
"function types should be subroutines");
Value *TElts[] = { GetTagConstant(VMContext, DW_TAG_base_type) };
@ -1172,17 +1202,53 @@ DISubprogram DIBuilder::createFunction(DIDescriptor Context, StringRef Name,
MDNode::getTemporary(VMContext, TElts),
ConstantInt::get(Type::getInt32Ty(VMContext), ScopeLine)
};
MDNode *Node = MDNode::get(VMContext, Elts);
// Create a named metadata so that we do not lose this mdnode.
if (isDefinition)
AllSubprograms.push_back(Node);
DISubprogram S(Node);
DISubprogram S(CreateFunc(Elts));
assert(S.isSubprogram() &&
"createFunction should return a valid DISubprogram");
return S;
}
/// createFunction - Create a new descriptor for the specified function.
DISubprogram DIBuilder::createFunction(DIDescriptor Context, StringRef Name,
StringRef LinkageName, DIFile File,
unsigned LineNo, DICompositeType Ty,
bool isLocalToUnit, bool isDefinition,
unsigned ScopeLine, unsigned Flags,
bool isOptimized, Function *Fn,
MDNode *TParams, MDNode *Decl) {
return createFunctionHelper(VMContext, Context, Name, LinkageName, File,
LineNo, Ty, isLocalToUnit, isDefinition, ScopeLine,
Flags, isOptimized, Fn, TParams, Decl,
[&] (ArrayRef<Value *> Elts) -> MDNode *{
MDNode *Node = MDNode::get(VMContext, Elts);
// Create a named metadata so that we
// do not lose this mdnode.
if (isDefinition)
AllSubprograms.push_back(Node);
return Node;
});
}
/// createTempFunctionFwdDecl - Create a new temporary descriptor for
/// the specified function declaration.
DISubprogram
DIBuilder::createTempFunctionFwdDecl(DIDescriptor Context, StringRef Name,
StringRef LinkageName, DIFile File,
unsigned LineNo, DICompositeType Ty,
bool isLocalToUnit, bool isDefinition,
unsigned ScopeLine, unsigned Flags,
bool isOptimized, Function *Fn,
MDNode *TParams, MDNode *Decl) {
return createFunctionHelper(VMContext, Context, Name, LinkageName, File,
LineNo, Ty, isLocalToUnit, isDefinition, ScopeLine,
Flags, isOptimized, Fn, TParams, Decl,
[&] (ArrayRef<Value *> Elts) {
return MDNode::getTemporary(VMContext, Elts);
});
}
/// createMethod - Create a new descriptor for the specified C++ method.
DISubprogram DIBuilder::createMethod(DIDescriptor Context, StringRef Name,
StringRef LinkageName, DIFile F,