[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

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@319665 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/PowerPC/PPCMIPeephole.cpp b/lib/Target/PowerPC/PPCMIPeephole.cpp
index 1ac7afe..c6fcea7 100644
--- a/lib/Target/PowerPC/PPCMIPeephole.cpp
+++ b/lib/Target/PowerPC/PPCMIPeephole.cpp
@@ -686,7 +686,7 @@
           DEBUG(LiMI->dump());
 
           // There could be repeated registers in the PHI, e.g: %1<def> =
-          // PHI %6, <BB#2>, %8, <BB#3>, %8, <BB#6>; So if we've
+          // PHI %6, <%bb.2>, %8, <%bb.3>, %8, <%bb.6>; So if we've
           // already replaced the def instruction, skip.
           if (LiMI->getOpcode() == PPC::ADDI || LiMI->getOpcode() == PPC::ADDI8)
             continue;
@@ -1209,8 +1209,9 @@
     DEBUG(BI1->dump());
     DEBUG(BI2->dump());
     if (IsPartiallyRedundant) {
-      DEBUG(dbgs() << "The following compare is moved into BB#" <<
-            MBBtoMoveCmp->getNumber() << " to handle partial redundancy.\n");
+      DEBUG(dbgs() << "The following compare is moved into "
+                   << printMBBReference(*MBBtoMoveCmp)
+                   << " to handle partial redundancy.\n");
       DEBUG(CMPI2->dump());
     }