[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/test/CodeGen/PowerPC/pr32140.ll b/llvm/test/CodeGen/PowerPC/pr32140.ll
index 827a904..3feb9bd 100644
--- a/llvm/test/CodeGen/PowerPC/pr32140.ll
+++ b/llvm/test/CodeGen/PowerPC/pr32140.ll
@@ -9,7 +9,7 @@
 
 define void @bswapStorei64Toi32() {
 ; CHECK-LABEL: bswapStorei64Toi32:
-; CHECK:       # BB#0: # %entry
+; CHECK:       # %bb.0: # %entry
 ; CHECK:         lwa 3, 0(3)
 ; CHECK-NEXT:    rldicl 3, 3, 32, 32
 ; CHECK-NEXT:    stwbrx 3, 0, 4
@@ -25,7 +25,7 @@
 
 define void @bswapStorei32Toi16() {
 ; CHECK-LABEL: bswapStorei32Toi16:
-; CHECK:       # BB#0: # %entry
+; CHECK:       # %bb.0: # %entry
 ; CHECK:         lha 3, 0(3)
 ; CHECK-NEXT:    srwi 3, 3, 16
 ; CHECK-NEXT:    sthbrx 3, 0, 4
@@ -41,7 +41,7 @@
 
 define void @bswapStorei64Toi16() {
 ; CHECK-LABEL: bswapStorei64Toi16:
-; CHECK:       # BB#0: # %entry
+; CHECK:       # %bb.0: # %entry
 ; CHECK:         lha 3, 0(3)
 ; CHECK-NEXT:    rldicl 3, 3, 16, 48
 ; CHECK-NEXT:    sthbrx 3, 0, 4