[CodeGen] Unify MBB reference format in both MIR and debug output

As part of the unification of the debug format and the MIR format, print
MBB references as '%bb.5'.

The MIR printer prints the IR name of a MBB only for block definitions.

* find . \( -name "*.mir" -o -name "*.cpp" -o -name "*.h" -o -name "*.ll" \) -type f -print0 | xargs -0 sed -i '' -E 's/BB#" << ([a-zA-Z0-9_]+)->getNumber\(\)/" << printMBBReference(*\1)/g'
* find . \( -name "*.mir" -o -name "*.cpp" -o -name "*.h" -o -name "*.ll" \) -type f -print0 | xargs -0 sed -i '' -E 's/BB#" << ([a-zA-Z0-9_]+)\.getNumber\(\)/" << printMBBReference(\1)/g'
* find . \( -name "*.txt" -o -name "*.s" -o -name "*.mir" -o -name "*.cpp" -o -name "*.h" -o -name "*.ll" \) -type f -print0 | xargs -0 sed -i '' -E 's/BB#([0-9]+)/%bb.\1/g'
* grep -nr 'BB#' and fix

Differential Revision: https://reviews.llvm.org/D40422

llvm-svn: 319665
diff --git a/llvm/lib/Target/Hexagon/HexagonMachineScheduler.cpp b/llvm/lib/Target/Hexagon/HexagonMachineScheduler.cpp
index 5daceac..8765fc9 100644
--- a/llvm/lib/Target/Hexagon/HexagonMachineScheduler.cpp
+++ b/llvm/lib/Target/Hexagon/HexagonMachineScheduler.cpp
@@ -186,12 +186,10 @@
 /// after setting up the current scheduling region. [RegionBegin, RegionEnd)
 /// only includes instructions that have DAG nodes, not scheduling boundaries.
 void VLIWMachineScheduler::schedule() {
-  DEBUG(dbgs()
-        << "********** MI Converging Scheduling VLIW BB#" << BB->getNumber()
-        << " " << BB->getName()
-        << " in_func " << BB->getParent()->getFunction()->getName()
-        << " at loop depth "  << MLI->getLoopDepth(BB)
-        << " \n");
+  DEBUG(dbgs() << "********** MI Converging Scheduling VLIW "
+               << printMBBReference(*BB) << " " << BB->getName() << " in_func "
+               << BB->getParent()->getFunction()->getName() << " at loop depth "
+               << MLI->getLoopDepth(BB) << " \n");
 
   buildDAGWithRegPressure();
 
@@ -237,8 +235,8 @@
   placeDebugValues();
 
   DEBUG({
-    unsigned BBNum = begin()->getParent()->getNumber();
-    dbgs() << "*** Final schedule for BB#" << BBNum << " ***\n";
+    dbgs() << "*** Final schedule for "
+           << printMBBReference(*begin()->getParent()) << " ***\n";
     dumpSchedule();
     dbgs() << '\n';
   });