[LLVM-C] Add Accessors For Global Variable Metadata Properties
Summary: Metadata for a global variable is really a (GlobalVariable, Expression) tuple. Allow access to these, then allow retrieving the file, scope, and line for a DIVariable, whether global or local. This should be the last of the accessors required for uniform access to location and file information metadata.
Reviewers: jberdine, whitequark, deadalnix
Reviewed By: jberdine, whitequark
Subscribers: hiraditya, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D60725
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@358532 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/llvm-c/DebugInfo.h b/include/llvm-c/DebugInfo.h
index 54de41c..414a5bf 100644
--- a/include/llvm-c/DebugInfo.h
+++ b/include/llvm-c/DebugInfo.h
@@ -1038,6 +1038,48 @@
size_t NameLen, const char *Linkage, size_t LinkLen, LLVMMetadataRef File,
unsigned LineNo, LLVMMetadataRef Ty, LLVMBool LocalToUnit,
LLVMMetadataRef Expr, LLVMMetadataRef Decl, uint32_t AlignInBits);
+
+/**
+ * Retrieves the \c DIVariable associated with this global variable expression.
+ * \param GVE The global variable expression.
+ *
+ * @see llvm::DIGlobalVariableExpression::getVariable()
+ */
+LLVMMetadataRef LLVMDIGlobalVariableExpressionGetVariable(LLVMMetadataRef GVE);
+
+/**
+ * Retrieves the \c DIExpression associated with this global variable expression.
+ * \param GVE The global variable expression.
+ *
+ * @see llvm::DIGlobalVariableExpression::getExpression()
+ */
+LLVMMetadataRef LLVMDIGlobalVariableExpressionGetExpression(
+ LLVMMetadataRef GVE);
+
+/**
+ * Get the metadata of the file associated with a given variable.
+ * \param Var The variable object.
+ *
+ * @see DIVariable::getFile()
+ */
+LLVMMetadataRef LLVMDIVariableGetFile(LLVMMetadataRef Var);
+
+/**
+ * Get the metadata of the scope associated with a given variable.
+ * \param Var The variable object.
+ *
+ * @see DIVariable::getScope()
+ */
+LLVMMetadataRef LLVMDIVariableGetScope(LLVMMetadataRef Var);
+
+/**
+ * Get the source line where this \c DIVariable is declared.
+ * \param Var The DIVariable.
+ *
+ * @see DIVariable::getLine()
+ */
+unsigned LLVMDIVariableGetLine(LLVMMetadataRef Var);
+
/**
* Create a new temporary \c MDNode. Suitable for use in constructing cyclic
* \c MDNode structures. A temporary \c MDNode is not uniqued, may be RAUW'd,
@@ -1202,6 +1244,14 @@
void LLVMSetSubprogram(LLVMValueRef Func, LLVMMetadataRef SP);
/**
+ * Get the line associated with a given subprogram.
+ * \param Subprogram The subprogram object.
+ *
+ * @see DISubprogram::getLine()
+ */
+unsigned LLVMDISubprogramGetLine(LLVMMetadataRef Subprogram);
+
+/**
* Get the debug location for the given instruction.
*
* @see llvm::Instruction::getDebugLoc()
diff --git a/lib/IR/DebugInfo.cpp b/lib/IR/DebugInfo.cpp
index 773d547..1244623 100644
--- a/lib/IR/DebugInfo.cpp
+++ b/lib/IR/DebugInfo.cpp
@@ -1248,6 +1248,27 @@
nullptr, AlignInBits));
}
+LLVMMetadataRef LLVMDIGlobalVariableExpressionGetVariable(LLVMMetadataRef GVE) {
+ return wrap(unwrapDI<DIGlobalVariableExpression>(GVE)->getVariable());
+}
+
+LLVMMetadataRef LLVMDIGlobalVariableExpressionGetExpression(
+ LLVMMetadataRef GVE) {
+ return wrap(unwrapDI<DIGlobalVariableExpression>(GVE)->getExpression());
+}
+
+LLVMMetadataRef LLVMDIVariableGetFile(LLVMMetadataRef Var) {
+ return wrap(unwrapDI<DIVariable>(Var)->getFile());
+}
+
+LLVMMetadataRef LLVMDIVariableGetScope(LLVMMetadataRef Var) {
+ return wrap(unwrapDI<DIVariable>(Var)->getScope());
+}
+
+unsigned LLVMDIVariableGetLine(LLVMMetadataRef Var) {
+ return unwrapDI<DIVariable>(Var)->getLine();
+}
+
LLVMMetadataRef LLVMTemporaryMDNode(LLVMContextRef Ctx, LLVMMetadataRef *Data,
size_t Count) {
return wrap(
@@ -1359,6 +1380,10 @@
unwrap<Function>(Func)->setSubprogram(unwrap<DISubprogram>(SP));
}
+unsigned LLVMDISubprogramGetLine(LLVMMetadataRef Subprogram) {
+ return unwrapDI<DISubprogram>(Subprogram)->getLine();
+}
+
LLVMMetadataRef LLVMInstructionGetDebugLoc(LLVMValueRef Inst) {
return wrap(unwrap<Instruction>(Inst)->getDebugLoc().getAsMDNode());
}
