There are two ways to map a variable to its lexical scope. Lexical scope information is embedded in MDNode describing the variable. It is also available as a part of DebugLoc attached with DBG_VALUE instruction. DebugLoc attached with an instruction is less reliable in optimized code so use information embedded in the MDNode.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135629 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Analysis/DebugInfo.cpp b/lib/Analysis/DebugInfo.cpp
index 4dcf04e..dd85a4f 100644
--- a/lib/Analysis/DebugInfo.cpp
+++ b/lib/Analysis/DebugInfo.cpp
@@ -116,6 +116,12 @@
return DbgNode->getNumOperands()-8;
}
+/// getInlinedAt - If this variable is inlined then return inline location.
+MDNode *DIVariable::getInlinedAt() {
+ if (getVersion() <= llvm::LLVMDebugVersion9)
+ return NULL;
+ return dyn_cast_or_null<MDNode>(DbgNode->getOperand(7));
+}
//===----------------------------------------------------------------------===//
// Predicates