[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/andc.ll b/llvm/test/CodeGen/PowerPC/andc.ll
index df47bfc..9bfbda2 100644
--- a/llvm/test/CodeGen/PowerPC/andc.ll
+++ b/llvm/test/CodeGen/PowerPC/andc.ll
@@ -3,7 +3,7 @@
 
 define i1 @and_cmp1(i32 %x, i32 %y) {
 ; CHECK-LABEL: and_cmp1:
-; CHECK:       # BB#0:
+; CHECK:       # %bb.0:
 ; CHECK-NEXT:    andc 3, 4, 3
 ; CHECK-NEXT:    cntlzw 3, 3
 ; CHECK-NEXT:    rlwinm 3, 3, 27, 31, 31
@@ -15,7 +15,7 @@
 
 define i1 @and_cmp_const(i32 %x) {
 ; CHECK-LABEL: and_cmp_const:
-; CHECK:       # BB#0:
+; CHECK:       # %bb.0:
 ; CHECK-NEXT:    li 4, 43
 ; CHECK-NEXT:    andc 3, 4, 3
 ; CHECK-NEXT:    cntlzw 3, 3
@@ -28,7 +28,7 @@
 
 define i1 @foo(i32 %i) {
 ; CHECK-LABEL: foo:
-; CHECK:       # BB#0:
+; CHECK:       # %bb.0:
 ; CHECK-NEXT:    lis 4, 4660
 ; CHECK-NEXT:    ori 4, 4, 22136
 ; CHECK-NEXT:    andc 3, 4, 3
@@ -42,7 +42,7 @@
 
 define <4 x i32> @hidden_not_v4i32(<4 x i32> %x) {
 ; CHECK-LABEL: hidden_not_v4i32:
-; CHECK:       # BB#0:
+; CHECK:       # %bb.0:
 ; CHECK-NEXT:    vspltisw 3, 6
 ; CHECK-NEXT:    xxlandc 34, 35, 34
 ; CHECK-NEXT:    blr