[InstCombine] Fix name clashes in check lines (NFC)

These used both lower and upper case variants of the same name,
resulting in malformed check lines when regenerated.

Author: nikic

llvm/test/Transforms/InstCombine/call-guard.ll

@@ -114,22 +114,22 @@ define void @negative_div(i32 %V1, i32 %D) {
 ; Highlight the limit of the window in a case which would otherwise be mergable
 define void @negative_window(i32 %V1, i32 %a, i32 %b, i32 %c, i32 %d) {
 ; CHECK-LABEL: @negative_window(
-; CHECK-NEXT:    [[A:%.*]] = icmp slt i32 [[V1:%.*]], 0
-; CHECK-NEXT:    call void (i1, ...) @llvm.experimental.guard(i1 [[A]], i32 123) [ "deopt"() ]
+; CHECK-NEXT:    [[CMP1:%.*]] = icmp slt i32 [[V1:%.*]], 0
+; CHECK-NEXT:    call void (i1, ...) @llvm.experimental.guard(i1 [[CMP1]], i32 123) [ "deopt"() ]
 ; CHECK-NEXT:    [[V2:%.*]] = add i32 [[A:%.*]], [[B:%.*]]
 ; CHECK-NEXT:    [[V3:%.*]] = add i32 [[V2]], [[C:%.*]]
 ; CHECK-NEXT:    [[V4:%.*]] = add i32 [[V3]], [[D:%.*]]
-; CHECK-NEXT:    [[B:%.*]] = icmp slt i32 [[V4]], 0
-; CHECK-NEXT:    call void (i1, ...) @llvm.experimental.guard(i1 [[B]], i32 456) [ "deopt"() ]
+; CHECK-NEXT:    [[CMP2:%.*]] = icmp slt i32 [[V4]], 0
+; CHECK-NEXT:    call void (i1, ...) @llvm.experimental.guard(i1 [[CMP2]], i32 456) [ "deopt"() ]
 ; CHECK-NEXT:    ret void
 ;
-  %A = icmp slt i32 %V1, 0
-  call void(i1, ...) @llvm.experimental.guard( i1 %A, i32 123 )[ "deopt"() ]
+  %cmp1 = icmp slt i32 %V1, 0
+  call void(i1, ...) @llvm.experimental.guard( i1 %cmp1, i32 123 )[ "deopt"() ]
   %V2 = add i32 %a, %b
   %V3 = add i32 %V2, %c
   %V4 = add i32 %V3, %d
-  %B = icmp slt i32 %V4, 0
-  call void(i1, ...) @llvm.experimental.guard( i1 %B, i32 456 )[ "deopt"() ]
+  %cmp2 = icmp slt i32 %V4, 0
+  call void(i1, ...) @llvm.experimental.guard( i1 %cmp2, i32 456 )[ "deopt"() ]
   ret void
 }
 

llvm/test/Transforms/InstCombine/fast-math.ll

@@ -922,8 +922,8 @@ define float @test55(i1 %which, float %a) {
 ; CHECK-NEXT:    [[TMP0:%.*]] = fadd float [[A:%.*]], 1.000000e+00
 ; CHECK-NEXT:    br label [[FINAL]]
 ; CHECK:       final:
-; CHECK-NEXT:    [[A:%.*]] = phi float [ 3.000000e+00, [[ENTRY:%.*]] ], [ [[TMP0]], [[DELAY]] ]
-; CHECK-NEXT:    ret float [[A]]
+; CHECK-NEXT:    [[PHI:%.*]] = phi float [ 3.000000e+00, [[ENTRY:%.*]] ], [ [[TMP0]], [[DELAY]] ]
+; CHECK-NEXT:    ret float [[PHI]]
 ;
 entry:
   br i1 %which, label %final, label %delay
@@ -932,7 +932,7 @@ delay:
   br label %final
 
 final:
-  %A = phi float [ 2.0, %entry ], [ %a, %delay ]
-  %value = fadd float %A, 1.0
+  %phi = phi float [ 2.0, %entry ], [ %a, %delay ]
+  %value = fadd float %phi, 1.0
   ret float %value
 }