Add a DebugLoc parameter to TargetInstrInfo::InsertBranch(). This

addresses a longstanding deficiency noted in many FIXMEs scattered
across all the targets.

This effectively moves the problem up one level, replacing eleven
FIXMEs in the targets with eight FIXMEs in CodeGen, plus one path
through FastISel where we actually supply a DebugLoc, fixing Radar
7421831.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106243 91177308-0d34-0410-b5e6-96231b3b80d8

include/llvm/CodeGen/FastISel.h

@@ -286,7 +286,7 @@ protected:
   /// FastEmitBranch - Emit an unconditional branch to the given block,
   /// unless it is the immediate (fall-through) successor, and update
   /// the CFG.
-  void FastEmitBranch(MachineBasicBlock *MBB);
+  void FastEmitBranch(MachineBasicBlock *MBB, DebugLoc DL);
 
   unsigned UpdateValueMap(const Value* I, unsigned Reg);
 

include/llvm/Target/TargetInstrInfo.h

@@ -315,8 +315,9 @@ public:
   /// branch to analyze.  At least this much must be implemented, else tail
   /// merging needs to be disabled.
   virtual unsigned InsertBranch(MachineBasicBlock &MBB, MachineBasicBlock *TBB,
-                            MachineBasicBlock *FBB,
-                            const SmallVectorImpl<MachineOperand> &Cond) const {
+                                MachineBasicBlock *FBB,
+                                const SmallVectorImpl<MachineOperand> &Cond,
+                                DebugLoc DL) const {
     assert(0 && "Target didn't implement TargetInstrInfo::InsertBranch!"); 
     return 0;
   }