+
+ /// UnusedArgNodeMap - Maps argument value for unused arguments. This is used
+ /// to preserve debug information for incoming arguments.
+ DenseMap<const Value*, SDValue> UnusedArgNodeMap;
+
+ /// DanglingDebugInfo - Helper type for DanglingDebugInfoMap.
+ class DanglingDebugInfo {
+ const DbgValueInst* DI;
+ DebugLoc dl;
+ unsigned SDNodeOrder;
+ public:
+ DanglingDebugInfo() : DI(0), dl(DebugLoc()), SDNodeOrder(0) { }
+ DanglingDebugInfo(const DbgValueInst *di, DebugLoc DL, unsigned SDNO) :
+ DI(di), dl(DL), SDNodeOrder(SDNO) { }
+ const DbgValueInst* getDI() { return DI; }
+ DebugLoc getdl() { return dl; }
+ unsigned getSDNodeOrder() { return SDNodeOrder; }
+ };
+
+ /// DanglingDebugInfoMap - Keeps track of dbg_values for which we have not
+ /// yet seen the referent. We defer handling these until we do see it.
+ DenseMap<const Value*, DanglingDebugInfo> DanglingDebugInfoMap;