[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/testComparesllnesll.ll b/llvm/test/CodeGen/PowerPC/testComparesllnesll.ll
index 6b2b662..cdd272f 100644
--- a/llvm/test/CodeGen/PowerPC/testComparesllnesll.ll
+++ b/llvm/test/CodeGen/PowerPC/testComparesllnesll.ll
@@ -10,7 +10,7 @@
 
 define i64 @test_llnesll(i64 %a, i64 %b) {
 ; CHECK-LABEL: test_llnesll:
-; CHECK:       # BB#0: # %entry
+; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    xor r3, r3, r4
 ; CHECK-NEXT:    addic r4, r3, -1
 ; CHECK-NEXT:    subfe r3, r4, r3
@@ -23,7 +23,7 @@
 
 define i64 @test_llnesll_sext(i64 %a, i64 %b) {
 ; CHECK-LABEL: test_llnesll_sext:
-; CHECK:       # BB#0: # %entry
+; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    xor r3, r3, r4
 ; CHECK-NEXT:    subfic r3, r3, 0
 ; CHECK-NEXT:    subfe r3, r3, r3
@@ -36,7 +36,7 @@
 
 define i64 @test_llnesll_z(i64 %a) {
 ; CHECK-LABEL: test_llnesll_z:
-; CHECK:       # BB#0: # %entry
+; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    addic r4, r3, -1
 ; CHECK-NEXT:    subfe r3, r4, r3
 ; CHECK-NEXT:    blr
@@ -48,7 +48,7 @@
 
 define i64 @test_llnesll_sext_z(i64 %a) {
 ; CHECK-LABEL: test_llnesll_sext_z:
-; CHECK:       # BB#0: # %entry
+; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    subfic r3, r3, 0
 ; CHECK-NEXT:    subfe r3, r3, r3
 ; CHECK-NEXT:    blr
@@ -60,7 +60,7 @@
 
 define void @test_llnesll_store(i64 %a, i64 %b) {
 ; CHECK-LABEL: test_llnesll_store:
-; CHECK:       # BB#0: # %entry
+; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    addis r5, r2, .LC0@toc@ha
 ; CHECK-NEXT:    xor r3, r3, r4
 ; CHECK-NEXT:    ld r12, .LC0@toc@l(r5)
@@ -77,7 +77,7 @@
 
 define void @test_llnesll_sext_store(i64 %a, i64 %b) {
 ; CHECK-LABEL: test_llnesll_sext_store:
-; CHECK:       # BB#0: # %entry
+; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    addis r5, r2, .LC0@toc@ha
 ; CHECK-NEXT:    xor r3, r3, r4
 ; CHECK-NEXT:    ld r12, .LC0@toc@l(r5)
@@ -94,7 +94,7 @@
 
 define void @test_llnesll_z_store(i64 %a) {
 ; CHECK-LABEL: test_llnesll_z_store:
-; CHECK:       # BB#0: # %entry
+; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    addis r4, r2, .LC0@toc@ha
 ; CHECK-NEXT:    addic r5, r3, -1
 ; CHECK-NEXT:    ld r4, .LC0@toc@l(r4)
@@ -110,7 +110,7 @@
 
 define void @test_llnesll_sext_z_store(i64 %a) {
 ; CHECK-LABEL: test_llnesll_sext_z_store:
-; CHECK:       # BB#0: # %entry
+; CHECK:       # %bb.0: # %entry
 ; CHECK-NEXT:    addis r4, r2, .LC0@toc@ha
 ; CHECK-NEXT:    subfic r3, r3, 0
 ; CHECK-NEXT:    ld r4, .LC0@toc@l(r4)