[llvm] r277465 - [CodeGen] Generalize MachineFunctionProperties::print comma handling.

[Ahmed Bougacha via llvm-commits]

Author: ab
Date: Tue Aug  2 09:42:57 2016
New Revision: 277465

URL: http://llvm.org/viewvc/llvm-project?rev=277465&view=rev
Log:
[CodeGen] Generalize MachineFunctionProperties::print comma handling.

This is only used for debug prints, but the previous hardcoded ", "
caused it to be printed unnecessarily when OnlySet, and is annoying
when adding new properties.

Modified:
    llvm/trunk/lib/CodeGen/MachineFunction.cpp

Modified: llvm/trunk/lib/CodeGen/MachineFunction.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/MachineFunction.cpp?rev=277465&r1=277464&r2=277465&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/MachineFunction.cpp (original)
+++ llvm/trunk/lib/CodeGen/MachineFunction.cpp Tue Aug  2 09:42:57 2016
@@ -57,16 +57,21 @@ void MachineFunctionInitializer::anchor(
 void MachineFunctionProperties::print(raw_ostream &ROS, bool OnlySet) const {
   // Leave this function even in NDEBUG as an out-of-line anchor.
 #if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
+  bool NeedsComma = false;
   for (BitVector::size_type i = 0; i < Properties.size(); ++i) {
     bool HasProperty = Properties[i];
     if (OnlySet && !HasProperty)
       continue;
+    if (NeedsComma)
+      ROS << ", ";
+    else
+      NeedsComma = true;
     switch(static_cast<Property>(i)) {
       case Property::IsSSA:
-        ROS << (HasProperty ? "SSA, " : "Post SSA, ");
+        ROS << (HasProperty ? "SSA" : "Post SSA");
         break;
       case Property::TracksLiveness:
-        ROS << (HasProperty ? "" : "not ") << "tracking liveness, ";
+        ROS << (HasProperty ? "" : "not ") << "tracking liveness";
         break;
       case Property::AllVRegsAllocated:
         ROS << (HasProperty ? "AllVRegsAllocated" : "HasVRegs");