[InstSimplify] regenerate checks using a script

I didn't notice any significant changes in the actual checks here;
all of these tests already used FileCheck, so a script can batch
update them in one shot.

This commit is just to show the value of automating this process: 
We have uniform formatting as opposed to a mish-mash of check
structure that changes based on individual prefs and the current
fashion. This makes it simpler to update when we find a bug or
make an enhancement.

llvm-svn: 264457
diff --git a/llvm/test/Transforms/InstSimplify/2010-12-20-Boolean.ll b/llvm/test/Transforms/InstSimplify/2010-12-20-Boolean.ll
index 28c25c0..33f2176 100644
--- a/llvm/test/Transforms/InstSimplify/2010-12-20-Boolean.ll
+++ b/llvm/test/Transforms/InstSimplify/2010-12-20-Boolean.ll
@@ -1,29 +1,34 @@
+; NOTE: Assertions have been autogenerated by update_test_checks.py
 ; RUN: opt < %s -instsimplify -S | FileCheck %s
 
 define i1 @add(i1 %x) {
 ; CHECK-LABEL: @add(
+; CHECK:         ret i1 false
+;
   %z = add i1 %x, %x
   ret i1 %z
-; CHECK: ret i1 false
 }
 
 define i1 @sub(i1 %x) {
 ; CHECK-LABEL: @sub(
+; CHECK:         ret i1 %x
+;
   %z = sub i1 false, %x
   ret i1 %z
-; CHECK: ret i1 %x
 }
 
 define i1 @mul(i1 %x) {
 ; CHECK-LABEL: @mul(
+; CHECK:         ret i1 %x
+;
   %z = mul i1 %x, %x
   ret i1 %z
-; CHECK: ret i1 %x
 }
 
 define i1 @ne(i1 %x) {
 ; CHECK-LABEL: @ne(
+; CHECK:         ret i1 %x
+;
   %z = icmp ne i1 %x, 0
   ret i1 %z
-; CHECK: ret i1 %x
 }