[Reassociate] FileCheckize and cleanup a few testcases. No functional change

intended.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210685 91177308-0d34-0410-b5e6-96231b3b80d8

16 files changed, 275 insertions, 230 deletions

diff --git a/test/Transforms/Reassociate/2002-05-15-AgressiveSubMove.ll b/test/Transforms/Reassociate/2002-05-15-AgressiveSubMove.ll
index 5780990c76..24300352a6 100644
--- a/test/Transforms/Reassociate/2002-05-15-AgressiveSubMove.ll
+++ b/test/Transforms/Reassociate/2002-05-15-AgressiveSubMove.ll
@@ -1,9 +1,10 @@
-; RUN: opt < %s -reassociate -instcombine -constprop -dce -S | not grep add
+; RUN: opt < %s -reassociate -S | FileCheck %s
 
-define i32 @test(i32 %A) {
-	%X = add i32 %A, 1		; <i32> [#uses=1]
-	%Y = add i32 %A, 1		; <i32> [#uses=1]
-	%r = sub i32 %X, %Y		; <i32> [#uses=1]
-	ret i32 %r
+define i32 @test1(i32 %A) {
+; CHECK-LABEL: test1
+; CHECK: ret i32 0
+  %X = add i32 %A, 1
+  %Y = add i32 %A, 1
+  %r = sub i32 %X, %Y
+  ret i32 %r
 }
-
diff --git a/test/Transforms/Reassociate/2002-05-15-MissedTree.ll b/test/Transforms/Reassociate/2002-05-15-MissedTree.ll
index e8bccbde28..5f3c9209ae 100644
--- a/test/Transforms/Reassociate/2002-05-15-MissedTree.ll
+++ b/test/Transforms/Reassociate/2002-05-15-MissedTree.ll
@@ -1,9 +1,11 @@
-; RUN: opt < %s -reassociate -instcombine -constprop -die -S | not grep 5
+; RUN: opt < %s -reassociate -instcombine -S | FileCheck %s
 
-define i32 @test(i32 %A, i32 %B) {
-	%W = add i32 %B, -5		; <i32> [#uses=1]
-	%Y = add i32 %A, 5		; <i32> [#uses=1]
-	%Z = add i32 %W, %Y		; <i32> [#uses=1]
+define i32 @test1(i32 %A, i32 %B) {
+; CHECK-LABEL: test1
+; CHECK: %Z = add i32 %B, %A
+; CHECK: ret i32 %Z
+	%W = add i32 %B, -5
+	%Y = add i32 %A, 5
+	%Z = add i32 %W, %Y
 	ret i32 %Z
 }
-
diff --git a/test/Transforms/Reassociate/2002-05-15-SubReassociate.ll b/test/Transforms/Reassociate/2002-05-15-SubReassociate.ll
index c18af5e07e..29c178ffec 100644
--- a/test/Transforms/Reassociate/2002-05-15-SubReassociate.ll
+++ b/test/Transforms/Reassociate/2002-05-15-SubReassociate.ll
@@ -1,12 +1,30 @@
+; RUN: opt < %s -reassociate -constprop -instcombine -dce -S | FileCheck %s
+
 ; With sub reassociation, constant folding can eliminate all of the constants.
-;
-; RUN: opt < %s -reassociate -constprop -instcombine -dce -S | not grep add
+define i32 @test1(i32 %A, i32 %B) {
+; CHECK-LABEL: test1
+; CHECK-NEXT: %Z = sub i32 %A, %B
+; CHECK-NEXT: ret i32 %Z
 
-define i32 @test(i32 %A, i32 %B) {
-	%W = add i32 5, %B		; <i32> [#uses=1]
-	%X = add i32 -7, %A		; <i32> [#uses=1]
-	%Y = sub i32 %X, %W		; <i32> [#uses=1]
-	%Z = add i32 %Y, 12		; <i32> [#uses=1]
-	ret i32 %Z
+  %W = add i32 5, %B
+  %X = add i32 -7, %A
+  %Y = sub i32 %X, %W
+  %Z = add i32 %Y, 12
+  ret i32 %Z
 }
+ 
+; With sub reassociation, constant folding can eliminate the two 12 constants.
+define i32 @test2(i32 %A, i32 %B, i32 %C, i32 %D) {
+; CHECK-LABEL: test2
+; CHECK-NEXT: %sum = add i32 %B, %A
+; CHECK-NEXT: %sum1 = add i32 %sum, %C
+; CHECK-NEXT: %Q = sub i32 %D, %sum1
+; CHECK-NEXT: ret i32 %Q
 
+  %M = add i32 %A, 12
+  %N = add i32 %M, %B
+  %O = add i32 %N, %C
+  %P = sub i32 %D, %O
+  %Q = add i32 %P, 12
+  ret i32 %Q
+}
diff --git a/test/Transforms/Reassociate/2002-05-15-SubReassociate2.ll b/test/Transforms/Reassociate/2002-05-15-SubReassociate2.ll
deleted file mode 100644
index 5848821e10..0000000000
--- a/test/Transforms/Reassociate/2002-05-15-SubReassociate2.ll
+++ /dev/null
@@ -1,13 +0,0 @@
-; With sub reassociation, constant folding can eliminate the two 12 constants.
-;
-; RUN: opt < %s -reassociate -constprop -dce -S | not grep 12
-
-define i32 @test(i32 %A, i32 %B, i32 %C, i32 %D) {
-	%M = add i32 %A, 12		; <i32> [#uses=1]
-	%N = add i32 %M, %B		; <i32> [#uses=1]
-	%O = add i32 %N, %C		; <i32> [#uses=1]
-	%P = sub i32 %D, %O		; <i32> [#uses=1]
-	%Q = add i32 %P, 12		; <i32> [#uses=1]
-	ret i32 %Q
-}
-
diff --git a/test/Transforms/Reassociate/2005-09-01-ArrayOutOfBounds.ll b/test/Transforms/Reassociate/2005-09-01-ArrayOutOfBounds.ll
index f66148bb4a..f6cef35b17 100644
--- a/test/Transforms/Reassociate/2005-09-01-ArrayOutOfBounds.ll
+++ b/test/Transforms/Reassociate/2005-09-01-ArrayOutOfBounds.ll
@@ -1,23 +1,24 @@
-; RUN: opt < %s -reassociate -instcombine -S |\
-; RUN:   grep "ret i32 0"
+; RUN: opt < %s -reassociate -instcombine -S | FileCheck %s
 
-define i32 @f(i32 %a0, i32 %a1, i32 %a2, i32 %a3, i32 %a4) {
-	%tmp.2 = add i32 %a4, %a3		; <i32> [#uses=1]
-	%tmp.4 = add i32 %tmp.2, %a2		; <i32> [#uses=1]
-	%tmp.6 = add i32 %tmp.4, %a1		; <i32> [#uses=1]
-	%tmp.8 = add i32 %tmp.6, %a0		; <i32> [#uses=1]
-	%tmp.11 = add i32 %a3, %a2		; <i32> [#uses=1]
-	%tmp.13 = add i32 %tmp.11, %a1		; <i32> [#uses=1]
-	%tmp.15 = add i32 %tmp.13, %a0		; <i32> [#uses=1]
-	%tmp.18 = add i32 %a2, %a1		; <i32> [#uses=1]
-	%tmp.20 = add i32 %tmp.18, %a0		; <i32> [#uses=1]
-	%tmp.23 = add i32 %a1, %a0		; <i32> [#uses=1]
-	%tmp.26 = sub i32 %tmp.8, %tmp.15		; <i32> [#uses=1]
-	%tmp.28 = add i32 %tmp.26, %tmp.20		; <i32> [#uses=1]
-	%tmp.30 = sub i32 %tmp.28, %tmp.23		; <i32> [#uses=1]
-	%tmp.32 = sub i32 %tmp.30, %a4		; <i32> [#uses=1]
-	%tmp.34 = sub i32 %tmp.32, %a2		; <i32> [#uses=2]
-	%T = mul i32 %tmp.34, %tmp.34		; <i32> [#uses=1]
-	ret i32 %T
-}
+define i32 @f1(i32 %a0, i32 %a1, i32 %a2, i32 %a3, i32 %a4) {
+; CHECK-LABEL: f1
+; CHECK-NEXT: ret i32 0
 
+  %tmp.2 = add i32 %a4, %a3
+  %tmp.4 = add i32 %tmp.2, %a2
+  %tmp.6 = add i32 %tmp.4, %a1
+  %tmp.8 = add i32 %tmp.6, %a0
+  %tmp.11 = add i32 %a3, %a2
+  %tmp.13 = add i32 %tmp.11, %a1
+  %tmp.15 = add i32 %tmp.13, %a0
+  %tmp.18 = add i32 %a2, %a1
+  %tmp.20 = add i32 %tmp.18, %a0
+  %tmp.23 = add i32 %a1, %a0
+  %tmp.26 = sub i32 %tmp.8, %tmp.15
+  %tmp.28 = add i32 %tmp.26, %tmp.20
+  %tmp.30 = sub i32 %tmp.28, %tmp.23
+  %tmp.32 = sub i32 %tmp.30, %a4
+  %tmp.34 = sub i32 %tmp.32, %a2
+  %T = mul i32 %tmp.34, %tmp.34
+  ret i32 %T
+}
diff --git a/test/Transforms/Reassociate/2006-04-27-ReassociateVector.ll b/test/Transforms/Reassociate/2006-04-27-ReassociateVector.ll
index 384cbc90a7..f783955400 100644
--- a/test/Transforms/Reassociate/2006-04-27-ReassociateVector.ll
+++ b/test/Transforms/Reassociate/2006-04-27-ReassociateVector.ll
@@ -1,8 +1,12 @@
-; RUN: opt < %s -reassociate -disable-output
+; RUN: opt < %s -reassociate -S | FileCheck %s
 
-define void @foo() {
-	%tmp162 = fsub <4 x float> zeroinitializer, zeroinitializer		; <<4 x float>> [#uses=1]
-	%tmp164 = fmul <4 x float> zeroinitializer, %tmp162		; <<4 x float>> [#uses=0]
-	ret void
-}
+define <4 x float> @test1() {
+; CHECK-LABEL: test1
+; CHECK-NEXT: %tmp1 = fsub <4 x float> zeroinitializer, zeroinitializer
+; CHECK-NEXT: %tmp2 = fmul <4 x float> zeroinitializer, %tmp1
+; CHECK-NEXT: ret <4 x float> %tmp2
 
+  %tmp1 = fsub <4 x float> zeroinitializer, zeroinitializer
+  %tmp2 = fmul <4 x float> zeroinitializer, %tmp1
+  ret <4 x float> %tmp2
+}
diff --git a/test/Transforms/Reassociate/basictest.ll b/test/Transforms/Reassociate/basictest.ll
index fda0ca6be1..d70bfcbb72 100644
--- a/test/Transforms/Reassociate/basictest.ll
+++ b/test/Transforms/Reassociate/basictest.ll
@@ -1,46 +1,47 @@
-; With reassociation, constant folding can eliminate the 12 and -12 constants.
-;
-; RUN: opt < %s -reassociate  -gvn -instcombine -S | FileCheck %s
+; RUN: opt < %s -reassociate -gvn -instcombine -S | FileCheck %s
 
 define i32 @test1(i32 %arg) {
-	%tmp1 = sub i32 -12, %arg
-	%tmp2 = add i32 %tmp1, 12
-	ret i32 %tmp2
-; CHECK-LABEL: @test1(
+  %tmp1 = sub i32 -12, %arg
+  %tmp2 = add i32 %tmp1, 12
+  ret i32 %tmp2
+
+; CHECK-LABEL: @test1
 ; CHECK-NEXT: sub i32 0, %arg
 ; CHECK-NEXT: ret i32
 }
 
 define i32 @test2(i32 %reg109, i32 %reg1111) {
-	%reg115 = add i32 %reg109, -30		; <i32> [#uses=1]
-	%reg116 = add i32 %reg115, %reg1111		; <i32> [#uses=1]
-	%reg117 = add i32 %reg116, 30		; <i32> [#uses=1]
-	ret i32 %reg117
-; CHECK-LABEL: @test2(
-; CHECK-NEXT: add i32 %reg1111, %reg109
-; CHECK-NEXT: ret i32
+  %reg115 = add i32 %reg109, -30
+  %reg116 = add i32 %reg115, %reg1111
+  %reg117 = add i32 %reg116, 30
+  ret i32 %reg117
+
+; CHECK-LABEL: @test2
+; CHECK-NEXT: %reg117 = add i32 %reg1111, %reg109
+; CHECK-NEXT: ret i32 %reg117
 }
 
-@e = external global i32		; <i32*> [#uses=3]
-@a = external global i32		; <i32*> [#uses=3]
-@b = external global i32		; <i32*> [#uses=3]
-@c = external global i32		; <i32*> [#uses=3]
-@f = external global i32		; <i32*> [#uses=3]
+@e = external global i32
+@a = external global i32
+@b = external global i32
+@c = external global i32
+@f = external global i32
 
 define void @test3() {
-	%A = load i32* @a		; <i32> [#uses=2]
-	%B = load i32* @b		; <i32> [#uses=2]
-	%C = load i32* @c		; <i32> [#uses=2]
-	%t1 = add i32 %A, %B		; <i32> [#uses=1]
-	%t2 = add i32 %t1, %C		; <i32> [#uses=1]
-	%t3 = add i32 %C, %A		; <i32> [#uses=1]
-	%t4 = add i32 %t3, %B		; <i32> [#uses=1]
-	; e = (a+b)+c;
-        store i32 %t2, i32* @e
-        ; f = (a+c)+b
-	store i32 %t4, i32* @f
-	ret void
-; CHECK-LABEL: @test3(
+  %A = load i32* @a
+  %B = load i32* @b
+  %C = load i32* @c
+  %t1 = add i32 %A, %B
+  %t2 = add i32 %t1, %C
+  %t3 = add i32 %C, %A
+  %t4 = add i32 %t3, %B
+  ; e = (a+b)+c;
+  store i32 %t2, i32* @e
+  ; f = (a+c)+b
+  store i32 %t4, i32* @f
+  ret void
+
+; CHECK-LABEL: @test3
 ; CHECK: add i32
 ; CHECK: add i32
 ; CHECK-NOT: add i32
@@ -48,19 +49,20 @@ define void @test3() {
 }
 
 define void @test4() {
-	%A = load i32* @a		; <i32> [#uses=2]
-	%B = load i32* @b		; <i32> [#uses=2]
-	%C = load i32* @c		; <i32> [#uses=2]
-	%t1 = add i32 %A, %B		; <i32> [#uses=1]
-	%t2 = add i32 %t1, %C		; <i32> [#uses=1]
-	%t3 = add i32 %C, %A		; <i32> [#uses=1]
-	%t4 = add i32 %t3, %B		; <i32> [#uses=1]
-	; e = c+(a+b)
-        store i32 %t2, i32* @e
-        ; f = (c+a)+b
-	store i32 %t4, i32* @f
-	ret void
-; CHECK-LABEL: @test4(
+  %A = load i32* @a
+  %B = load i32* @b
+  %C = load i32* @c
+  %t1 = add i32 %A, %B
+  %t2 = add i32 %t1, %C
+  %t3 = add i32 %C, %A
+  %t4 = add i32 %t3, %B
+  ; e = c+(a+b)
+  store i32 %t2, i32* @e
+  ; f = (c+a)+b
+  store i32 %t4, i32* @f
+  ret void
+
+; CHECK-LABEL: @test4
 ; CHECK: add i32
 ; CHECK: add i32
 ; CHECK-NOT: add i32
@@ -68,19 +70,20 @@ define void @test4() {
 }
 
 define void @test5() {
-	%A = load i32* @a		; <i32> [#uses=2]
-	%B = load i32* @b		; <i32> [#uses=2]
-	%C = load i32* @c		; <i32> [#uses=2]
-	%t1 = add i32 %B, %A		; <i32> [#uses=1]
-	%t2 = add i32 %t1, %C		; <i32> [#uses=1]
-	%t3 = add i32 %C, %A		; <i32> [#uses=1]
-	%t4 = add i32 %t3, %B		; <i32> [#uses=1]
-	; e = c+(b+a)
-        store i32 %t2, i32* @e
-        ; f = (c+a)+b
-	store i32 %t4, i32* @f
-	ret void
-; CHECK-LABEL: @test5(
+  %A = load i32* @a
+  %B = load i32* @b
+  %C = load i32* @c
+  %t1 = add i32 %B, %A
+  %t2 = add i32 %t1, %C
+  %t3 = add i32 %C, %A
+  %t4 = add i32 %t3, %B
+  ; e = c+(b+a)
+  store i32 %t2, i32* @e
+  ; f = (c+a)+b
+  store i32 %t4, i32* @f
+  ret void
+
+; CHECK-LABEL: @test5
 ; CHECK: add i32
 ; CHECK: add i32
 ; CHECK-NOT: add i32
@@ -88,60 +91,61 @@ define void @test5() {
 }
 
 define i32 @test6() {
-	%tmp.0 = load i32* @a
-	%tmp.1 = load i32* @b
-        ; (a+b)
-	%tmp.2 = add i32 %tmp.0, %tmp.1
-	%tmp.4 = load i32* @c
-	; (a+b)+c
-        %tmp.5 = add i32 %tmp.2, %tmp.4
-	; (a+c)
-        %tmp.8 = add i32 %tmp.0, %tmp.4
-	; (a+c)+b
-        %tmp.11 = add i32 %tmp.8, %tmp.1
-	; X ^ X = 0
-        %RV = xor i32 %tmp.5, %tmp.11
-	ret i32 %RV
-; CHECK-LABEL: @test6(
+  %tmp.0 = load i32* @a
+  %tmp.1 = load i32* @b
+  ; (a+b)
+  %tmp.2 = add i32 %tmp.0, %tmp.1
+  %tmp.4 = load i32* @c
+  ; (a+b)+c
+  %tmp.5 = add i32 %tmp.2, %tmp.4
+  ; (a+c)
+  %tmp.8 = add i32 %tmp.0, %tmp.4
+  ; (a+c)+b
+  %tmp.11 = add i32 %tmp.8, %tmp.1
+  ; X ^ X = 0
+  %RV = xor i32 %tmp.5, %tmp.11
+  ret i32 %RV
+
+; CHECK-LABEL: @test6
 ; CHECK: ret i32 0
 }
 
 ; This should be one add and two multiplies.
 define i32 @test7(i32 %A, i32 %B, i32 %C) {
- ; A*A*B + A*C*A
-	%aa = mul i32 %A, %A
-	%aab = mul i32 %aa, %B
-	%ac = mul i32 %A, %C
-	%aac = mul i32 %ac, %A
-	%r = add i32 %aab, %aac
-	ret i32 %r
-; CHECK-LABEL: @test7(
+  ; A*A*B + A*C*A
+  %aa = mul i32 %A, %A
+  %aab = mul i32 %aa, %B
+  %ac = mul i32 %A, %C
+  %aac = mul i32 %ac, %A
+  %r = add i32 %aab, %aac
+  ret i32 %r
+
+; CHECK-LABEL: @test7
 ; CHECK-NEXT: add i32 %C, %B
 ; CHECK-NEXT: mul i32 
 ; CHECK-NEXT: mul i32 
 ; CHECK-NEXT: ret i32 
 }
 
-
 define i32 @test8(i32 %X, i32 %Y, i32 %Z) {
-	%A = sub i32 0, %X
-	%B = mul i32 %A, %Y
-        ; (-X)*Y + Z -> Z-X*Y
-	%C = add i32 %B, %Z
-	ret i32 %C
-; CHECK-LABEL: @test8(
+  %A = sub i32 0, %X
+  %B = mul i32 %A, %Y
+  ; (-X)*Y + Z -> Z-X*Y
+  %C = add i32 %B, %Z
+  ret i32 %C
+
+; CHECK-LABEL: @test8
 ; CHECK-NEXT: %A = mul i32 %Y, %X
 ; CHECK-NEXT: %C = sub i32 %Z, %A
 ; CHECK-NEXT: ret i32 %C
 }
 
-
 ; PR5458
 define i32 @test9(i32 %X) {
   %Y = mul i32 %X, 47
   %Z = add i32 %Y, %Y
   ret i32 %Z
-; CHECK-LABEL: @test9(
+; CHECK-LABEL: @test9
 ; CHECK-NEXT: mul i32 %X, 94
 ; CHECK-NEXT: ret i32
 }
@@ -150,7 +154,7 @@ define i32 @test10(i32 %X) {
   %Y = add i32 %X ,%X
   %Z = add i32 %Y, %X
   ret i32 %Z
-; CHECK-LABEL: @test10(
+; CHECK-LABEL: @test10
 ; CHECK-NEXT: mul i32 %X, 3
 ; CHECK-NEXT: ret i32
 }
@@ -160,7 +164,7 @@ define i32 @test11(i32 %W) {
   %Y = add i32 %X ,%X
   %Z = add i32 %Y, %X
   ret i32 %Z
-; CHECK-LABEL: @test11(
+; CHECK-LABEL: @test11
 ; CHECK-NEXT: mul i32 %W, 381
 ; CHECK-NEXT: ret i32
 }
@@ -169,11 +173,10 @@ define i32 @test12(i32 %X) {
   %A = sub i32 1, %X
   %B = sub i32 2, %X
   %C = sub i32 3, %X
-
   %Y = add i32 %A ,%B
   %Z = add i32 %Y, %C
   ret i32 %Z
-; CHECK-LABEL: @test12(
+; CHECK-LABEL: @test12
 ; CHECK-NEXT: mul i32 %X, -3
 ; CHECK-NEXT: add i32{{.*}}, 6
 ; CHECK-NEXT: ret i32
@@ -185,7 +188,7 @@ define i32 @test13(i32 %X1, i32 %X2, i32 %X3) {
   %C = mul i32 %X1, %X3  ; X1*X3
   %D = add i32 %B, %C    ; -X1*X2 + X1*X3 -> X1*(X3-X2)
   ret i32 %D
-; CHECK-LABEL: @test13(
+; CHECK-LABEL: @test13
 ; CHECK-NEXT: sub i32 %X3, %X2
 ; CHECK-NEXT: mul i32 {{.*}}, %X1
 ; CHECK-NEXT: ret i32
@@ -197,9 +200,10 @@ define i32 @test14(i32 %X1, i32 %X2) {
   %C = mul i32 %X2, -47  ; X2*-47
   %D = add i32 %B, %C    ; X1*47 + X2*-47 -> 47*(X1-X2)
   ret i32 %D
-; CHECK-LABEL: @test14(
+
+; CHECK-LABEL: @test14
 ; CHECK-NEXT: sub i32 %X1, %X2
-; CHECK-NEXT: mul i32 {{.*}}, 47
+; CHECK-NEXT: mul i32 %tmp, 47
 ; CHECK-NEXT: ret i32
 }
 
@@ -210,7 +214,6 @@ define i32 @test15(i32 %X1, i32 %X2, i32 %X3) {
   %C = and i1 %A, %B
   %D = select i1 %C, i32 %X1, i32 0
   ret i32 %D
-; CHECK-LABEL: @test15(
+; CHECK-LABEL: @test15
 ; CHECK: and i1 %A, %B
 }
-
diff --git a/test/Transforms/Reassociate/fp-commute.ll b/test/Transforms/Reassociate/fp-commute.ll
index 025689bb0c..eac5b5920a 100644
--- a/test/Transforms/Reassociate/fp-commute.ll
+++ b/test/Transforms/Reassociate/fp-commute.ll
@@ -1,18 +1,19 @@
 ; RUN: opt -reassociate -S < %s | FileCheck %s
 
-target triple = "armv7-apple-ios"
-
 declare void @use(float)
 
-; CHECK: test
-define void @test(float %x, float %y) {
-entry:
+define void @test1(float %x, float %y) {
+; CHECK-LABEL: test1
 ; CHECK: fmul float %x, %y
 ; CHECK: fmul float %x, %y
-  %0 = fmul float %x, %y
-  %1 = fmul float %y, %x
-  %2 = fsub float %0, %1
-  call void @use(float %0)
-  call void @use(float %2)
+; CHECK: fsub float %1, %2
+; CHECK: call void @use(float %{{.*}})
+; CHECK: call void @use(float %{{.*}})
+
+  %1 = fmul float %x, %y
+  %2 = fmul float %y, %x
+  %3 = fsub float %1, %2
+  call void @use(float %1)
+  call void @use(float %3)
   ret void
 }
diff --git a/test/Transforms/Reassociate/looptest.ll b/test/Transforms/Reassociate/looptest.ll
index 91723bc37b..aad3b206f6 100644
--- a/test/Transforms/Reassociate/looptest.ll
+++ b/test/Transforms/Reassociate/looptest.ll
@@ -18,6 +18,7 @@
 
 declare i32 @printf(i8*, ...)
 
+; FIXME: No longer works.
 define void @test(i32 %Num, i32* %Array) {
 bb0:
 	%cond221 = icmp eq i32 0, %Num		; <i1> [#uses=3]
diff --git a/test/Transforms/Reassociate/mightymul.ll b/test/Transforms/Reassociate/mightymul.ll
index cfbc485ffa..ae915da8e5 100644
--- a/test/Transforms/Reassociate/mightymul.ll
+++ b/test/Transforms/Reassociate/mightymul.ll
@@ -1,7 +1,7 @@
-; RUN: opt < %s -reassociate
+; RUN: opt < %s -reassociate -disable-output
 ; PR13021
 
-define i32 @foo(i32 %x) {
+define i32 @test1(i32 %x) {
   %t0 = mul i32 %x, %x
   %t1 = mul i32 %t0, %t0
   %t2 = mul i32 %t1, %t1
diff --git a/test/Transforms/Reassociate/multistep.ll b/test/Transforms/Reassociate/multistep.ll
index d79464753f..12eaeeea7b 100644
--- a/test/Transforms/Reassociate/multistep.ll
+++ b/test/Transforms/Reassociate/multistep.ll
@@ -28,4 +28,3 @@ define i64 @multistep2(i64 %a, i64 %b, i64 %c, i64 %d) {
 ; CHECK-NEXT: ret
   ret i64 %t3
 }
-
diff --git a/test/Transforms/Reassociate/negation.ll b/test/Transforms/Reassociate/negation.ll
index 6a3dfd3b82..12d2c86192 100644
--- a/test/Transforms/Reassociate/negation.ll
+++ b/test/Transforms/Reassociate/negation.ll
@@ -1,21 +1,31 @@
-; RUN: opt < %s -reassociate -instcombine -S | not grep sub
+; RUN: opt < %s -reassociate -instcombine -S | FileCheck %s
 
 ; Test that we can turn things like X*-(Y*Z) -> X*-1*Y*Z.
 
 define i32 @test1(i32 %a, i32 %b, i32 %z) {
-	%c = sub i32 0, %z		; <i32> [#uses=1]
-	%d = mul i32 %a, %b		; <i32> [#uses=1]
-	%e = mul i32 %c, %d		; <i32> [#uses=1]
-	%f = mul i32 %e, 12345		; <i32> [#uses=1]
-	%g = sub i32 0, %f		; <i32> [#uses=1]
-	ret i32 %g
+; CHECK-LABEL: test1
+; CHECK-NEXT: %e = mul i32 %a, 12345
+; CHECK-NEXT: %f = mul i32 %e, %b
+; CHECK-NEXT: %g = mul i32 %f, %z
+; CHECK-NEXT: ret i32 %g
+
+  %c = sub i32 0, %z
+  %d = mul i32 %a, %b
+  %e = mul i32 %c, %d
+  %f = mul i32 %e, 12345
+  %g = sub i32 0, %f
+  ret i32 %g
 }
 
 define i32 @test2(i32 %a, i32 %b, i32 %z) {
-	%d = mul i32 %z, 40		; <i32> [#uses=1]
-	%c = sub i32 0, %d		; <i32> [#uses=1]
-	%e = mul i32 %a, %c		; <i32> [#uses=1]
-	%f = sub i32 0, %e		; <i32> [#uses=1]
-	ret i32 %f
-}
+; CHECK-LABEL: test2
+; CHECK-NEXT: %e = mul i32 %a, 40
+; CHECK-NEXT: %f = mul i32 %e, %z
+; CHECK-NEXT: ret i32 %f
 
+  %d = mul i32 %z, 40
+  %c = sub i32 0, %d
+  %e = mul i32 %a, %c
+  %f = sub i32 0, %e
+  ret i32 %f
+}
diff --git a/test/Transforms/Reassociate/otherops.ll b/test/Transforms/Reassociate/otherops.ll
index d68d00818c..7718881d8e 100644
--- a/test/Transforms/Reassociate/otherops.ll
+++ b/test/Transforms/Reassociate/otherops.ll
@@ -1,28 +1,42 @@
 ; Reassociation should apply to Add, Mul, And, Or, & Xor
 ;
-; RUN: opt < %s -reassociate -constprop -instcombine -die -S | not grep 12
+; RUN: opt < %s -reassociate -constprop -instcombine -die -S | FileCheck %s
 
 define i32 @test_mul(i32 %arg) {
-	%tmp1 = mul i32 12, %arg		; <i32> [#uses=1]
-	%tmp2 = mul i32 %tmp1, 12		; <i32> [#uses=1]
-	ret i32 %tmp2
+; CHECK-LABEL: test_mul
+; CHECK-NEXT: %tmp2 = mul i32 %arg, 144
+; CHECK-NEXT: ret i32 %tmp2
+
+  %tmp1 = mul i32 12, %arg
+  %tmp2 = mul i32 %tmp1, 12
+  ret i32 %tmp2
 }
 
 define i32 @test_and(i32 %arg) {
-	%tmp1 = and i32 14, %arg		; <i32> [#uses=1]
-	%tmp2 = and i32 %tmp1, 14		; <i32> [#uses=1]
-	ret i32 %tmp2
+; CHECK-LABEL: test_and
+; CHECK-NEXT: %tmp2 = and i32 %arg, 14
+; CHECK-NEXT: ret i32 %tmp2
+
+  %tmp1 = and i32 14, %arg
+  %tmp2 = and i32 %tmp1, 14
+  ret i32 %tmp2
 }
 
 define i32 @test_or(i32 %arg) {
-	%tmp1 = or i32 14, %arg		; <i32> [#uses=1]
-	%tmp2 = or i32 %tmp1, 14		; <i32> [#uses=1]
-	ret i32 %tmp2
+; CHECK-LABEL: test_or
+; CHECK-NEXT: %tmp2 = or i32 %arg, 14
+; CHECK-NEXT: ret i32 %tmp2
+
+  %tmp1 = or i32 14, %arg
+  %tmp2 = or i32 %tmp1, 14
+  ret i32 %tmp2
 }
 
 define i32 @test_xor(i32 %arg) {
-	%tmp1 = xor i32 12, %arg		; <i32> [#uses=1]
-	%tmp2 = xor i32 %tmp1, 12		; <i32> [#uses=1]
-	ret i32 %tmp2
-}
+; CHECK-LABEL: test_xor
+; CHECK-NEXT: ret i32 %arg
 
+  %tmp1 = xor i32 12, %arg
+  %tmp2 = xor i32 %tmp1, 12
+  ret i32 %tmp2
+}
diff --git a/test/Transforms/Reassociate/shift-factor.ll b/test/Transforms/Reassociate/shift-factor.ll
index 73af5e5304..8fbf1b9d4b 100644
--- a/test/Transforms/Reassociate/shift-factor.ll
+++ b/test/Transforms/Reassociate/shift-factor.ll
@@ -1,12 +1,14 @@
 ; There should be exactly one shift and one add left.
-; RUN: opt < %s -reassociate -instcombine -S > %t
-; RUN: grep shl %t | count 1
-; RUN: grep add %t | count 1
+; RUN: opt < %s -reassociate -instcombine -S | FileCheck %s
 
-define i32 @test(i32 %X, i32 %Y) {
-	%tmp.2 = shl i32 %X, 1		; <i32> [#uses=1]
-	%tmp.6 = shl i32 %Y, 1		; <i32> [#uses=1]
-	%tmp.4 = add i32 %tmp.6, %tmp.2		; <i32> [#uses=1]
-	ret i32 %tmp.4
-}
+define i32 @test1(i32 %X, i32 %Y) {
+; CHECK-LABEL: test1
+; CHECK-NEXT: %tmp = add i32 %Y, %X
+; CHECK-NEXT: %tmp1 = shl i32 %tmp, 1
+; CHECK-NEXT: ret i32 %tmp1
 
+  %tmp.2 = shl i32 %X, 1
+  %tmp.6 = shl i32 %Y, 1
+  %tmp.4 = add i32 %tmp.6, %tmp.2
+  ret i32 %tmp.4
+}
diff --git a/test/Transforms/Reassociate/subtest.ll b/test/Transforms/Reassociate/subtest.ll
index 4c63d1238a..e6263d8552 100644
--- a/test/Transforms/Reassociate/subtest.ll
+++ b/test/Transforms/Reassociate/subtest.ll
@@ -1,11 +1,26 @@
-; With sub reassociation, constant folding can eliminate the 12 and -12 constants.
-;
-; RUN: opt < %s -reassociate -instcombine -S | not grep 12
+; RUN: opt < %s -reassociate -instcombine -S | FileCheck %s
 
-define i32 @test(i32 %A, i32 %B) {
-	%X = add i32 -12, %A		; <i32> [#uses=1]
-	%Y = sub i32 %X, %B		; <i32> [#uses=1]
-	%Z = add i32 %Y, 12		; <i32> [#uses=1]
-	ret i32 %Z
+; With sub reassociation, constant folding can eliminate the 12 and -12 constants.
+define i32 @test1(i32 %A, i32 %B) {
+; CHECK-LABEL: @test1
+; CHECK-NEXT: %Z = sub i32 %A, %B
+; CHECK-NEXT: ret i32 %Z
+  %X = add i32 -12, %A
+  %Y = sub i32 %X, %B
+  %Z = add i32 %Y, 12
+  ret i32 %Z
 }
 
+; PR2047
+; With sub reassociation, constant folding can eliminate the uses of %a.
+define i32 @test2(i32 %a, i32 %b, i32 %c) nounwind  {
+; CHECK-LABEL: @test2
+; CHECK-NEXT: %sum = add i32 %c, %b
+; CHECK-NEXT: %tmp7 = sub i32 0, %sum
+; CHECK-NEXT: ret i32 %tmp7
+
+  %tmp3 = sub i32 %a, %b
+  %tmp5 = sub i32 %tmp3, %c
+  %tmp7 = sub i32 %tmp5, %a
+  ret i32 %tmp7
+}
diff --git a/test/Transforms/Reassociate/subtest2.ll b/test/Transforms/Reassociate/subtest2.ll
deleted file mode 100644
index 0513c5fc1b..0000000000
--- a/test/Transforms/Reassociate/subtest2.ll
+++ /dev/null
@@ -1,13 +0,0 @@
-; With sub reassociation, constant folding can eliminate the uses of %a.
-;
-; RUN: opt < %s -reassociate -instcombine -S | grep %a | count 1
-; PR2047
-
-define i32 @test(i32 %a, i32 %b, i32 %c) nounwind  {
-entry:
-	%tmp3 = sub i32 %a, %b		; <i32> [#uses=1]
-	%tmp5 = sub i32 %tmp3, %c		; <i32> [#uses=1]
-	%tmp7 = sub i32 %tmp5, %a		; <i32> [#uses=1]
-	ret i32 %tmp7
-}
-