[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/past-the-end.ll b/llvm/test/Transforms/InstSimplify/past-the-end.ll
index b676e9d..b47db7d 100644
--- a/llvm/test/Transforms/InstSimplify/past-the-end.ll
+++ b/llvm/test/Transforms/InstSimplify/past-the-end.ll
@@ -1,3 +1,4 @@
+; NOTE: Assertions have been autogenerated by update_test_checks.py
 ; RUN: opt < %s -instsimplify -S | FileCheck %s
 target datalayout = "p:32:32"
 
@@ -9,21 +10,23 @@
 ; Comparing base addresses of two distinct globals. Never equal.
 
 define zeroext i1 @no_offsets() {
+; CHECK-LABEL: @no_offsets(
+; CHECK:         ret i1 false
+;
   %t = icmp eq i32* @opte_a, @opte_b
   ret i1 %t
-  ; CHECK: no_offsets(
-  ; CHECK: ret i1 false
 }
 
 ; Comparing past-the-end addresses of two distinct globals. Never equal.
 
 define zeroext i1 @both_past_the_end() {
+; CHECK-LABEL: @both_past_the_end(
+; CHECK:         ret i1 icmp eq (i32* getelementptr inbounds (i32, i32* @opte_a, i32 1), i32* getelementptr inbounds (i32, i32* @opte_b, i32 1))
+;
   %x = getelementptr i32, i32* @opte_a, i32 1
   %y = getelementptr i32, i32* @opte_b, i32 1
   %t = icmp eq i32* %x, %y
   ret i1 %t
-  ; CHECK: both_past_the_end(
-  ; CHECK-NOT: ret i1 true
   ; TODO: refine this
 }
 
@@ -31,35 +34,43 @@
 ; of another. Can't fold this.
 
 define zeroext i1 @just_one_past_the_end() {
+; CHECK-LABEL: @just_one_past_the_end(
+; CHECK:         ret i1 icmp eq (i32* getelementptr inbounds (i32, i32* @opte_a, i32 1), i32* @opte_b)
+;
   %x = getelementptr i32, i32* @opte_a, i32 1
   %t = icmp eq i32* %x, @opte_b
   ret i1 %t
-  ; CHECK: just_one_past_the_end(
-  ; CHECK: ret i1 icmp eq (i32* getelementptr inbounds (i32, i32* @opte_a, i32 1), i32* @opte_b)
 }
 
 ; Comparing base addresses of two distinct allocas. Never equal.
 
 define zeroext i1 @no_alloca_offsets() {
+; CHECK-LABEL: @no_alloca_offsets(
+; CHECK:         ret i1 false
+;
   %m = alloca i32
   %n = alloca i32
   %t = icmp eq i32* %m, %n
   ret i1 %t
-  ; CHECK: no_alloca_offsets(
-  ; CHECK: ret i1 false
 }
 
 ; Comparing past-the-end addresses of two distinct allocas. Never equal.
 
 define zeroext i1 @both_past_the_end_alloca() {
+; CHECK-LABEL: @both_past_the_end_alloca(
+; CHECK:         [[M:%.*]] = alloca i32
+; CHECK-NEXT:    [[N:%.*]] = alloca i32
+; CHECK-NEXT:    [[X:%.*]] = getelementptr i32, i32* [[M]], i32 1
+; CHECK-NEXT:    [[Y:%.*]] = getelementptr i32, i32* [[N]], i32 1
+; CHECK-NEXT:    [[T:%.*]] = icmp eq i32* [[X]], [[Y]]
+; CHECK-NEXT:    ret i1 [[T]]
+;
   %m = alloca i32
   %n = alloca i32
   %x = getelementptr i32, i32* %m, i32 1
   %y = getelementptr i32, i32* %n, i32 1
   %t = icmp eq i32* %x, %y
   ret i1 %t
-  ; CHECK: both_past_the_end_alloca(
-  ; CHECK-NOT: ret i1 true
   ; TODO: refine this
 }
 
@@ -67,11 +78,16 @@
 ; of another. Can't fold this.
 
 define zeroext i1 @just_one_past_the_end_alloca() {
+; CHECK-LABEL: @just_one_past_the_end_alloca(
+; CHECK:         [[M:%.*]] = alloca i32
+; CHECK-NEXT:    [[N:%.*]] = alloca i32
+; CHECK-NEXT:    [[X:%.*]] = getelementptr i32, i32* [[M]], i32 1
+; CHECK-NEXT:    [[T:%.*]] = icmp eq i32* [[X]], [[N]]
+; CHECK-NEXT:    ret i1 [[T]]
+;
   %m = alloca i32
   %n = alloca i32
   %x = getelementptr i32, i32* %m, i32 1
   %t = icmp eq i32* %x, %n
   ret i1 %t
-  ; CHECK: just_one_past_the_end_alloca(
-  ; CHECK: ret i1 %t
 }