X-Git-Url: http://plrg.eecs.uci.edu/git/?a=blobdiff_plain;f=test%2FTransforms%2FInstCombine%2Ficmp.ll;h=bd8128ffb1b0411b51f382067205a22ae21c557a;hb=2c6ef1c4339c2961745bc3747753e4f2d23ee7c6;hp=c2234a10e5b7a51c32667e37e80824419859fc40;hpb=6304b0dd631ba65f3e325d8ed85a0f770d74d633;p=oota-llvm.git

diff --git a/test/Transforms/InstCombine/icmp.ll b/test/Transforms/InstCombine/icmp.ll
index c2234a10e5b..bd8128ffb1b 100644
--- a/test/Transforms/InstCombine/icmp.ll
+++ b/test/Transforms/InstCombine/icmp.ll
@@ -1,11 +1,14 @@
 ; RUN: opt < %s -instcombine -S | FileCheck %s
 
+target datalayout =
+"e-p:64:64:64-p1:16:16:16-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"
+
 define i32 @test1(i32 %X) {
 entry:
         icmp slt i32 %X, 0              ; <i1>:0 [#uses=1]
         zext i1 %0 to i32               ; <i32>:1 [#uses=1]
         ret i32 %1
-; CHECK: @test1
+; CHECK-LABEL: @test1(
 ; CHECK: lshr i32 %X, 31
 ; CHECK-NEXT: ret i32
 }
@@ -15,7 +18,7 @@ entry:
         icmp ult i32 %X, -2147483648            ; <i1>:0 [#uses=1]
         zext i1 %0 to i32               ; <i32>:1 [#uses=1]
         ret i32 %1
-; CHECK: @test2
+; CHECK-LABEL: @test2(
 ; CHECK: lshr i32 %X, 31
 ; CHECK-NEXT: xor i32
 ; CHECK-NEXT: ret i32
@@ -26,7 +29,7 @@ entry:
         icmp slt i32 %X, 0              ; <i1>:0 [#uses=1]
         sext i1 %0 to i32               ; <i32>:1 [#uses=1]
         ret i32 %1
-; CHECK: @test3
+; CHECK-LABEL: @test3(
 ; CHECK: ashr i32 %X, 31
 ; CHECK-NEXT: ret i32
 }
@@ -36,7 +39,7 @@ entry:
         icmp ult i32 %X, -2147483648            ; <i1>:0 [#uses=1]
         sext i1 %0 to i32               ; <i32>:1 [#uses=1]
         ret i32 %1
-; CHECK: @test4
+; CHECK-LABEL: @test4(
 ; CHECK: ashr i32 %X, 31
 ; CHECK-NEXT: xor i32
 ; CHECK-NEXT: ret i32
@@ -47,8 +50,8 @@ define <2 x i1> @test5(<2 x i64> %x) {
 entry:
   %V = icmp eq <2 x i64> %x, undef
   ret <2 x i1> %V
-; CHECK: @test5
-; CHECK: ret <2 x i1> undef
+; CHECK-LABEL: @test5(
+; CHECK: ret <2 x i1> <i1 true, i1 true>
 }
 
 define i32 @test6(i32 %a, i32 %b) {
@@ -57,7 +60,7 @@ define i32 @test6(i32 %a, i32 %b) {
         %e = sub i32 0, %d
         %f = and i32 %e, %b
         ret i32 %f
-; CHECK: @test6
+; CHECK-LABEL: @test6(
 ; CHECK-NEXT: ashr i32 %a, 31
 ; CHECK-NEXT: %f = and i32 %e, %b
 ; CHECK-NEXT: ret i32 %f
@@ -69,37 +72,36 @@ entry:
   %a = add i32 %x, -1
   %b = icmp ult i32 %a, %x
   ret i1 %b
-; CHECK: @test7
+; CHECK-LABEL: @test7(
 ; CHECK: %b = icmp ne i32 %x, 0
 ; CHECK: ret i1 %b
 }
 
 define i1 @test8(i32 %x){
 entry:
-  %a = add i32 %x, -1 
+  %a = add i32 %x, -1
   %b = icmp eq i32 %a, %x
   ret i1 %b
-; CHECK: @test8
+; CHECK-LABEL: @test8(
 ; CHECK: ret i1 false
 }
 
 define i1 @test9(i32 %x)  {
 entry:
   %a = add i32 %x, -2
-  %b = icmp ugt i32 %x, %a 
+  %b = icmp ugt i32 %x, %a
   ret i1 %b
-; CHECK: @test9
+; CHECK-LABEL: @test9(
 ; CHECK: icmp ugt i32 %x, 1
 ; CHECK: ret i1 %b
 }
 
 define i1 @test10(i32 %x){
 entry:
-  %a = add i32 %x, -1      
-  %b = icmp slt i32 %a, %x 
+  %a = add i32 %x, -1
+  %b = icmp slt i32 %a, %x
   ret i1 %b
-  
-; CHECK: @test10
+; CHECK-LABEL: @test10(
 ; CHECK: %b = icmp ne i32 %x, -2147483648
 ; CHECK: ret i1 %b
 }
@@ -108,7 +110,7 @@ define i1 @test11(i32 %x) {
   %a = add nsw i32 %x, 8
   %b = icmp slt i32 %x, %a
   ret i1 %b
-; CHECK: @test11  
+; CHECK-LABEL: @test11(
 ; CHECK: ret i1 true
 }
 
@@ -117,7 +119,1220 @@ define i1 @test12(i1 %A) {
   %S = select i1 %A, i64 -4294967295, i64 8589934591
   %B = icmp ne i64 bitcast (<2 x i32> <i32 1, i32 -1> to i64), %S
   ret i1 %B
-; CHECK: @test12
-; CHECK-NEXT: %B = select i1
-; CHECK-NEXT: ret i1 %B
+; CHECK-LABEL: @test12(
+; CHECK-NEXT: = xor i1 %A, true
+; CHECK-NEXT: ret i1
+}
+
+; PR6481
+define i1 @test13(i8 %X) nounwind readnone {
+entry:
+        %cmp = icmp slt i8 undef, %X
+        ret i1 %cmp
+; CHECK-LABEL: @test13(
+; CHECK: ret i1 false
+}
+
+define i1 @test14(i8 %X) nounwind readnone {
+entry:
+        %cmp = icmp slt i8 undef, -128
+        ret i1 %cmp
+; CHECK-LABEL: @test14(
+; CHECK: ret i1 false
+}
+
+define i1 @test15() nounwind readnone {
+entry:
+        %cmp = icmp eq i8 undef, -128
+        ret i1 %cmp
+; CHECK-LABEL: @test15(
+; CHECK: ret i1 undef
+}
+
+define i1 @test16() nounwind readnone {
+entry:
+        %cmp = icmp ne i8 undef, -128
+        ret i1 %cmp
+; CHECK-LABEL: @test16(
+; CHECK: ret i1 undef
+}
+
+define i1 @test17(i32 %x) nounwind {
+  %shl = shl i32 1, %x
+  %and = and i32 %shl, 8
+  %cmp = icmp eq i32 %and, 0
+  ret i1 %cmp
+; CHECK-LABEL: @test17(
+; CHECK-NEXT: %cmp = icmp ne i32 %x, 3
+}
+
+
+define i1 @test18(i32 %x) nounwind {
+  %sh = lshr i32 8, %x
+  %and = and i32 %sh, 1
+  %cmp = icmp eq i32 %and, 0
+  ret i1 %cmp
+; CHECK-LABEL: @test18(
+; CHECK-NEXT: %cmp = icmp ne i32 %x, 3
+}
+
+define i1 @test19(i32 %x) nounwind {
+  %shl = shl i32 1, %x
+  %and = and i32 %shl, 8
+  %cmp = icmp eq i32 %and, 8
+  ret i1 %cmp
+; CHECK-LABEL: @test19(
+; CHECK-NEXT: %cmp = icmp eq i32 %x, 3
+}
+
+define i1 @test20(i32 %x) nounwind {
+  %shl = shl i32 1, %x
+  %and = and i32 %shl, 8
+  %cmp = icmp ne i32 %and, 0
+  ret i1 %cmp
+; CHECK-LABEL: @test20(
+; CHECK-NEXT: %cmp = icmp eq i32 %x, 3
+}
+
+define i1 @test21(i8 %x, i8 %y) {
+; CHECK-LABEL: @test21(
+; CHECK-NOT: or i8
+; CHECK: icmp ugt
+  %A = or i8 %x, 1
+  %B = icmp ugt i8 %A, 3
+  ret i1 %B
+}
+
+define i1 @test22(i8 %x, i8 %y) {
+; CHECK-LABEL: @test22(
+; CHECK-NOT: or i8
+; CHECK: icmp ult
+  %A = or i8 %x, 1
+  %B = icmp ult i8 %A, 4
+  ret i1 %B
+}
+
+; PR2740
+; CHECK-LABEL: @test23(
+; CHECK: icmp sgt i32 %x, 1328634634
+define i1 @test23(i32 %x) nounwind {
+	%i3 = sdiv i32 %x, -1328634635
+	%i4 = icmp eq i32 %i3, -1
+	ret i1 %i4
+}
+
+@X = global [1000 x i32] zeroinitializer
+
+; PR8882
+; CHECK-LABEL: @test24(
+; CHECK:    %cmp = icmp eq i64 %i, 1000
+; CHECK:   ret i1 %cmp
+define i1 @test24(i64 %i) {
+  %p1 = getelementptr inbounds i32* getelementptr inbounds ([1000 x i32]* @X, i64 0, i64 0), i64 %i
+  %cmp = icmp eq i32* %p1, getelementptr inbounds ([1000 x i32]* @X, i64 1, i64 0)
+  ret i1 %cmp
+}
+
+@X_as1 = addrspace(1) global [1000 x i32] zeroinitializer
+
+; CHECK: @test24_as1
+; CHECK: trunc i64 %i to i16
+; CHECK: %cmp = icmp eq i16 %1, 1000
+; CHECK: ret i1 %cmp
+define i1 @test24_as1(i64 %i) {
+  %p1 = getelementptr inbounds i32 addrspace(1)* getelementptr inbounds ([1000 x i32] addrspace(1)* @X_as1, i64 0, i64 0), i64 %i
+  %cmp = icmp eq i32 addrspace(1)* %p1, getelementptr inbounds ([1000 x i32] addrspace(1)* @X_as1, i64 1, i64 0)
+  ret i1 %cmp
+}
+
+; CHECK-LABEL: @test25(
+; X + Z > Y + Z -> X > Y if there is no overflow.
+; CHECK: %c = icmp sgt i32 %x, %y
+; CHECK: ret i1 %c
+define i1 @test25(i32 %x, i32 %y, i32 %z) {
+  %lhs = add nsw i32 %x, %z
+  %rhs = add nsw i32 %y, %z
+  %c = icmp sgt i32 %lhs, %rhs
+  ret i1 %c
+}
+
+; CHECK-LABEL: @test26(
+; X + Z > Y + Z -> X > Y if there is no overflow.
+; CHECK: %c = icmp ugt i32 %x, %y
+; CHECK: ret i1 %c
+define i1 @test26(i32 %x, i32 %y, i32 %z) {
+  %lhs = add nuw i32 %x, %z
+  %rhs = add nuw i32 %y, %z
+  %c = icmp ugt i32 %lhs, %rhs
+  ret i1 %c
+}
+
+; CHECK-LABEL: @test27(
+; X - Z > Y - Z -> X > Y if there is no overflow.
+; CHECK: %c = icmp sgt i32 %x, %y
+; CHECK: ret i1 %c
+define i1 @test27(i32 %x, i32 %y, i32 %z) {
+  %lhs = sub nsw i32 %x, %z
+  %rhs = sub nsw i32 %y, %z
+  %c = icmp sgt i32 %lhs, %rhs
+  ret i1 %c
+}
+
+; CHECK-LABEL: @test28(
+; X - Z > Y - Z -> X > Y if there is no overflow.
+; CHECK: %c = icmp ugt i32 %x, %y
+; CHECK: ret i1 %c
+define i1 @test28(i32 %x, i32 %y, i32 %z) {
+  %lhs = sub nuw i32 %x, %z
+  %rhs = sub nuw i32 %y, %z
+  %c = icmp ugt i32 %lhs, %rhs
+  ret i1 %c
+}
+
+; CHECK-LABEL: @test29(
+; X + Y > X -> Y > 0 if there is no overflow.
+; CHECK: %c = icmp sgt i32 %y, 0
+; CHECK: ret i1 %c
+define i1 @test29(i32 %x, i32 %y) {
+  %lhs = add nsw i32 %x, %y
+  %c = icmp sgt i32 %lhs, %x
+  ret i1 %c
+}
+
+; CHECK-LABEL: @test30(
+; X + Y > X -> Y > 0 if there is no overflow.
+; CHECK: %c = icmp ne i32 %y, 0
+; CHECK: ret i1 %c
+define i1 @test30(i32 %x, i32 %y) {
+  %lhs = add nuw i32 %x, %y
+  %c = icmp ugt i32 %lhs, %x
+  ret i1 %c
+}
+
+; CHECK-LABEL: @test31(
+; X > X + Y -> 0 > Y if there is no overflow.
+; CHECK: %c = icmp slt i32 %y, 0
+; CHECK: ret i1 %c
+define i1 @test31(i32 %x, i32 %y) {
+  %rhs = add nsw i32 %x, %y
+  %c = icmp sgt i32 %x, %rhs
+  ret i1 %c
+}
+
+; CHECK-LABEL: @test32(
+; X > X + Y -> 0 > Y if there is no overflow.
+; CHECK: ret i1 false
+define i1 @test32(i32 %x, i32 %y) {
+  %rhs = add nuw i32 %x, %y
+  %c = icmp ugt i32 %x, %rhs
+  ret i1 %c
+}
+
+; CHECK-LABEL: @test33(
+; X - Y > X -> 0 > Y if there is no overflow.
+; CHECK: %c = icmp slt i32 %y, 0
+; CHECK: ret i1 %c
+define i1 @test33(i32 %x, i32 %y) {
+  %lhs = sub nsw i32 %x, %y
+  %c = icmp sgt i32 %lhs, %x
+  ret i1 %c
+}
+
+; CHECK-LABEL: @test34(
+; X - Y > X -> 0 > Y if there is no overflow.
+; CHECK: ret i1 false
+define i1 @test34(i32 %x, i32 %y) {
+  %lhs = sub nuw i32 %x, %y
+  %c = icmp ugt i32 %lhs, %x
+  ret i1 %c
+}
+
+; CHECK-LABEL: @test35(
+; X > X - Y -> Y > 0 if there is no overflow.
+; CHECK: %c = icmp sgt i32 %y, 0
+; CHECK: ret i1 %c
+define i1 @test35(i32 %x, i32 %y) {
+  %rhs = sub nsw i32 %x, %y
+  %c = icmp sgt i32 %x, %rhs
+  ret i1 %c
+}
+
+; CHECK-LABEL: @test36(
+; X > X - Y -> Y > 0 if there is no overflow.
+; CHECK: %c = icmp ne i32 %y, 0
+; CHECK: ret i1 %c
+define i1 @test36(i32 %x, i32 %y) {
+  %rhs = sub nuw i32 %x, %y
+  %c = icmp ugt i32 %x, %rhs
+  ret i1 %c
+}
+
+; CHECK-LABEL: @test37(
+; X - Y > X - Z -> Z > Y if there is no overflow.
+; CHECK: %c = icmp sgt i32 %z, %y
+; CHECK: ret i1 %c
+define i1 @test37(i32 %x, i32 %y, i32 %z) {
+  %lhs = sub nsw i32 %x, %y
+  %rhs = sub nsw i32 %x, %z
+  %c = icmp sgt i32 %lhs, %rhs
+  ret i1 %c
+}
+
+; CHECK-LABEL: @test38(
+; X - Y > X - Z -> Z > Y if there is no overflow.
+; CHECK: %c = icmp ugt i32 %z, %y
+; CHECK: ret i1 %c
+define i1 @test38(i32 %x, i32 %y, i32 %z) {
+  %lhs = sub nuw i32 %x, %y
+  %rhs = sub nuw i32 %x, %z
+  %c = icmp ugt i32 %lhs, %rhs
+  ret i1 %c
+}
+
+; PR9343 #1
+; CHECK-LABEL: @test39(
+; CHECK: %B = icmp eq i32 %X, 0
+define i1 @test39(i32 %X, i32 %Y) {
+  %A = ashr exact i32 %X, %Y
+  %B = icmp eq i32 %A, 0
+  ret i1 %B
+}
+
+; CHECK-LABEL: @test40(
+; CHECK: %B = icmp ne i32 %X, 0
+define i1 @test40(i32 %X, i32 %Y) {
+  %A = lshr exact i32 %X, %Y
+  %B = icmp ne i32 %A, 0
+  ret i1 %B
+}
+
+; PR9343 #3
+; CHECK-LABEL: @test41(
+; CHECK: ret i1 true
+define i1 @test41(i32 %X, i32 %Y) {
+  %A = urem i32 %X, %Y
+  %B = icmp ugt i32 %Y, %A
+  ret i1 %B
+}
+
+; CHECK-LABEL: @test42(
+; CHECK: %B = icmp sgt i32 %Y, -1
+define i1 @test42(i32 %X, i32 %Y) {
+  %A = srem i32 %X, %Y
+  %B = icmp slt i32 %A, %Y
+  ret i1 %B
+}
+
+; CHECK-LABEL: @test43(
+; CHECK: %B = icmp slt i32 %Y, 0
+define i1 @test43(i32 %X, i32 %Y) {
+  %A = srem i32 %X, %Y
+  %B = icmp slt i32 %Y, %A
+  ret i1 %B
+}
+
+; CHECK-LABEL: @test44(
+; CHECK: %B = icmp sgt i32 %Y, -1
+define i1 @test44(i32 %X, i32 %Y) {
+  %A = srem i32 %X, %Y
+  %B = icmp slt i32 %A, %Y
+  ret i1 %B
+}
+
+; CHECK-LABEL: @test45(
+; CHECK: %B = icmp slt i32 %Y, 0
+define i1 @test45(i32 %X, i32 %Y) {
+  %A = srem i32 %X, %Y
+  %B = icmp slt i32 %Y, %A
+  ret i1 %B
+}
+
+; PR9343 #4
+; CHECK-LABEL: @test46(
+; CHECK: %C = icmp ult i32 %X, %Y
+define i1 @test46(i32 %X, i32 %Y, i32 %Z) {
+  %A = ashr exact i32 %X, %Z
+  %B = ashr exact i32 %Y, %Z
+  %C = icmp ult i32 %A, %B
+  ret i1 %C
+}
+
+; PR9343 #5
+; CHECK-LABEL: @test47(
+; CHECK: %C = icmp ugt i32 %X, %Y
+define i1 @test47(i32 %X, i32 %Y, i32 %Z) {
+  %A = ashr exact i32 %X, %Z
+  %B = ashr exact i32 %Y, %Z
+  %C = icmp ugt i32 %A, %B
+  ret i1 %C
+}
+
+; PR9343 #8
+; CHECK-LABEL: @test48(
+; CHECK: %C = icmp eq i32 %X, %Y
+define i1 @test48(i32 %X, i32 %Y, i32 %Z) {
+  %A = sdiv exact i32 %X, %Z
+  %B = sdiv exact i32 %Y, %Z
+  %C = icmp eq i32 %A, %B
+  ret i1 %C
+}
+
+; PR8469
+; CHECK-LABEL: @test49(
+; CHECK: ret <2 x i1> <i1 true, i1 true>
+define <2 x i1> @test49(<2 x i32> %tmp3) {
+entry:
+  %tmp11 = and <2 x i32> %tmp3, <i32 3, i32 3>
+  %cmp = icmp ult <2 x i32> %tmp11, <i32 4, i32 4>
+  ret <2 x i1> %cmp
+}
+
+; PR9343 #7
+; CHECK-LABEL: @test50(
+; CHECK: ret i1 true
+define i1 @test50(i16 %X, i32 %Y) {
+  %A = zext i16 %X to i32
+  %B = srem i32 %A, %Y
+  %C = icmp sgt i32 %B, -1
+  ret i1 %C
+}
+
+; CHECK-LABEL: @test51(
+; CHECK: ret i1 %C
+define i1 @test51(i32 %X, i32 %Y) {
+  %A = and i32 %X, 2147483648
+  %B = srem i32 %A, %Y
+  %C = icmp sgt i32 %B, -1
+  ret i1 %C
+}
+
+; CHECK-LABEL: @test52(
+; CHECK-NEXT: and i32 %x1, 16711935
+; CHECK-NEXT: icmp eq i32 {{.*}}, 4980863
+; CHECK-NEXT: ret i1
+define i1 @test52(i32 %x1) nounwind {
+  %conv = and i32 %x1, 255
+  %cmp = icmp eq i32 %conv, 127
+  %tmp2 = lshr i32 %x1, 16
+  %tmp3 = trunc i32 %tmp2 to i8
+  %cmp15 = icmp eq i8 %tmp3, 76
+
+  %A = and i1 %cmp, %cmp15
+  ret i1 %A
+}
+
+; PR9838
+; CHECK-LABEL: @test53(
+; CHECK-NEXT: ashr exact
+; CHECK-NEXT: ashr
+; CHECK-NEXT: icmp
+define i1 @test53(i32 %a, i32 %b) nounwind {
+ %x = ashr exact i32 %a, 30
+ %y = ashr i32 %b, 30
+ %z = icmp eq i32 %x, %y
+ ret i1 %z
+}
+
+; CHECK-LABEL: @test54(
+; CHECK-NEXT: %and = and i8 %a, -64
+; CHECK-NEXT: icmp eq i8 %and, -128
+define i1 @test54(i8 %a) nounwind {
+  %ext = zext i8 %a to i32
+  %and = and i32 %ext, 192
+  %ret = icmp eq i32 %and, 128
+  ret i1 %ret
+}
+
+; CHECK-LABEL: @test55(
+; CHECK-NEXT: icmp eq i32 %a, -123
+define i1 @test55(i32 %a) {
+  %sub = sub i32 0, %a
+  %cmp = icmp eq i32 %sub, 123
+  ret i1 %cmp
+}
+
+; CHECK-LABEL: @test56(
+; CHECK-NEXT: icmp eq i32 %a, -113
+define i1 @test56(i32 %a) {
+  %sub = sub i32 10, %a
+  %cmp = icmp eq i32 %sub, 123
+  ret i1 %cmp
+}
+
+; PR10267 Don't make icmps more expensive when no other inst is subsumed.
+declare void @foo(i32)
+; CHECK-LABEL: @test57(
+; CHECK: %and = and i32 %a, -2
+; CHECK: %cmp = icmp ne i32 %and, 0
+define i1 @test57(i32 %a) {
+  %and = and i32 %a, -2
+  %cmp = icmp ne i32 %and, 0
+  call void @foo(i32 %and)
+  ret i1 %cmp
+}
+
+; rdar://problem/10482509
+; CHECK-LABEL: @cmpabs1(
+; CHECK-NEXT: icmp ne
+define zeroext i1 @cmpabs1(i64 %val) {
+  %sub = sub nsw i64 0, %val
+  %cmp = icmp slt i64 %val, 0
+  %sub.val = select i1 %cmp, i64 %sub, i64 %val
+  %tobool = icmp ne i64 %sub.val, 0
+  ret i1 %tobool
+}
+
+; CHECK-LABEL: @cmpabs2(
+; CHECK-NEXT: icmp ne
+define zeroext i1 @cmpabs2(i64 %val) {
+  %sub = sub nsw i64 0, %val
+  %cmp = icmp slt i64 %val, 0
+  %sub.val = select i1 %cmp, i64 %val, i64 %sub
+  %tobool = icmp ne i64 %sub.val, 0
+  ret i1 %tobool
+}
+
+; CHECK-LABEL: @test58(
+; CHECK-NEXT: call i32 @test58_d(i64 36029346783166592)
+define void @test58() nounwind {
+  %cast = bitcast <1 x i64> <i64 36029346783166592> to i64
+  %call = call i32 @test58_d( i64 %cast) nounwind
+  ret void
+}
+declare i32 @test58_d(i64)
+
+define i1 @test59(i8* %foo) {
+  %bit = bitcast i8* %foo to i32*
+  %gep1 = getelementptr inbounds i32* %bit, i64 2
+  %gep2 = getelementptr inbounds i8* %foo, i64 10
+  %cast1 = bitcast i32* %gep1 to i8*
+  %cmp = icmp ult i8* %cast1, %gep2
+  %use = ptrtoint i8* %cast1 to i64
+  %call = call i32 @test58_d(i64 %use) nounwind
+  ret i1 %cmp
+; CHECK-LABEL: @test59(
+; CHECK: ret i1 true
+}
+
+define i1 @test59_as1(i8 addrspace(1)* %foo) {
+  %bit = bitcast i8 addrspace(1)* %foo to i32 addrspace(1)*
+  %gep1 = getelementptr inbounds i32 addrspace(1)* %bit, i64 2
+  %gep2 = getelementptr inbounds i8 addrspace(1)* %foo, i64 10
+  %cast1 = bitcast i32 addrspace(1)* %gep1 to i8 addrspace(1)*
+  %cmp = icmp ult i8 addrspace(1)* %cast1, %gep2
+  %use = ptrtoint i8 addrspace(1)* %cast1 to i64
+  %call = call i32 @test58_d(i64 %use) nounwind
+  ret i1 %cmp
+; CHECK: @test59_as1
+; CHECK: %[[GEP:.+]] = getelementptr inbounds i8 addrspace(1)* %foo, i16 8
+; CHECK: ptrtoint i8 addrspace(1)* %[[GEP]] to i16
+; CHECK: ret i1 true
+}
+
+define i1 @test60(i8* %foo, i64 %i, i64 %j) {
+  %bit = bitcast i8* %foo to i32*
+  %gep1 = getelementptr inbounds i32* %bit, i64 %i
+  %gep2 = getelementptr inbounds i8* %foo, i64 %j
+  %cast1 = bitcast i32* %gep1 to i8*
+  %cmp = icmp ult i8* %cast1, %gep2
+  ret i1 %cmp
+; CHECK-LABEL: @test60(
+; CHECK-NEXT: %gep1.idx = shl nuw i64 %i, 2
+; CHECK-NEXT: icmp slt i64 %gep1.idx, %j
+; CHECK-NEXT: ret i1
+}
+
+define i1 @test60_as1(i8 addrspace(1)* %foo, i64 %i, i64 %j) {
+  %bit = bitcast i8 addrspace(1)* %foo to i32 addrspace(1)*
+  %gep1 = getelementptr inbounds i32 addrspace(1)* %bit, i64 %i
+  %gep2 = getelementptr inbounds i8 addrspace(1)* %foo, i64 %j
+  %cast1 = bitcast i32 addrspace(1)* %gep1 to i8 addrspace(1)*
+  %cmp = icmp ult i8 addrspace(1)* %cast1, %gep2
+  ret i1 %cmp
+; CHECK: @test60_as1
+; CHECK: trunc i64 %i to i16
+; CHECK: trunc i64 %j to i16
+; CHECK: %gep1.idx = shl nuw i16 %{{.+}}, 2
+; CHECK-NEXT: icmp sgt i16 %{{.+}}, %gep1.idx
+; CHECK-NEXT: ret i1
+}
+
+define i1 @test61(i8* %foo, i64 %i, i64 %j) {
+  %bit = bitcast i8* %foo to i32*
+  %gep1 = getelementptr i32* %bit, i64 %i
+  %gep2 = getelementptr  i8* %foo, i64 %j
+  %cast1 = bitcast i32* %gep1 to i8*
+  %cmp = icmp ult i8* %cast1, %gep2
+  ret i1 %cmp
+; Don't transform non-inbounds GEPs.
+; CHECK-LABEL: @test61(
+; CHECK: icmp ult i8* %cast1, %gep2
+; CHECK-NEXT: ret i1
+}
+
+define i1 @test61_as1(i8 addrspace(1)* %foo, i16 %i, i16 %j) {
+  %bit = bitcast i8 addrspace(1)* %foo to i32 addrspace(1)*
+  %gep1 = getelementptr i32 addrspace(1)* %bit, i16 %i
+  %gep2 = getelementptr i8 addrspace(1)* %foo, i16 %j
+  %cast1 = bitcast i32 addrspace(1)* %gep1 to i8 addrspace(1)*
+  %cmp = icmp ult i8 addrspace(1)* %cast1, %gep2
+  ret i1 %cmp
+; Don't transform non-inbounds GEPs.
+; CHECK: @test61_as1
+; CHECK: icmp ult i8 addrspace(1)* %cast1, %gep2
+; CHECK-NEXT: ret i1
+}
+
+define i1 @test62(i8* %a) {
+  %arrayidx1 = getelementptr inbounds i8* %a, i64 1
+  %arrayidx2 = getelementptr inbounds i8* %a, i64 10
+  %cmp = icmp slt i8* %arrayidx1, %arrayidx2
+  ret i1 %cmp
+; CHECK-LABEL: @test62(
+; CHECK-NEXT: ret i1 true
+}
+
+define i1 @test62_as1(i8 addrspace(1)* %a) {
+; CHECK-LABEL: @test62_as1(
+; CHECK-NEXT: ret i1 true
+  %arrayidx1 = getelementptr inbounds i8 addrspace(1)* %a, i64 1
+  %arrayidx2 = getelementptr inbounds i8 addrspace(1)* %a, i64 10
+  %cmp = icmp slt i8 addrspace(1)* %arrayidx1, %arrayidx2
+  ret i1 %cmp
+}
+
+define i1 @test63(i8 %a, i32 %b) nounwind {
+  %z = zext i8 %a to i32
+  %t = and i32 %b, 255
+  %c = icmp eq i32 %z, %t
+  ret i1 %c
+; CHECK-LABEL: @test63(
+; CHECK-NEXT: %1 = trunc i32 %b to i8
+; CHECK-NEXT: %c = icmp eq i8 %1, %a
+; CHECK-NEXT: ret i1 %c
+}
+
+define i1 @test64(i8 %a, i32 %b) nounwind {
+  %t = and i32 %b, 255
+  %z = zext i8 %a to i32
+  %c = icmp eq i32 %t, %z
+  ret i1 %c
+; CHECK-LABEL: @test64(
+; CHECK-NEXT: %1 = trunc i32 %b to i8
+; CHECK-NEXT: %c = icmp eq i8 %1, %a
+; CHECK-NEXT: ret i1 %c
+}
+
+define i1 @test65(i64 %A, i64 %B) {
+  %s1 = add i64 %A, %B
+  %s2 = add i64 %A, %B
+  %cmp = icmp eq i64 %s1, %s2
+; CHECK-LABEL: @test65(
+; CHECK-NEXT: ret i1 true
+  ret i1 %cmp
+}
+
+define i1 @test66(i64 %A, i64 %B) {
+  %s1 = add i64 %A, %B
+  %s2 = add i64 %B, %A
+  %cmp = icmp eq i64 %s1, %s2
+; CHECK-LABEL: @test66(
+; CHECK-NEXT: ret i1 true
+  ret i1 %cmp
+}
+
+; CHECK-LABEL: @test67(
+; CHECK: %and = and i32 %x, 96
+; CHECK: %cmp = icmp ne i32 %and, 0
+define i1 @test67(i32 %x) nounwind uwtable {
+  %and = and i32 %x, 127
+  %cmp = icmp sgt i32 %and, 31
+  ret i1 %cmp
+}
+
+; CHECK-LABEL: @test68(
+; CHECK: %cmp = icmp ugt i32 %and, 30
+define i1 @test68(i32 %x) nounwind uwtable {
+  %and = and i32 %x, 127
+  %cmp = icmp sgt i32 %and, 30
+  ret i1 %cmp
+}
+
+; PR14708
+; CHECK-LABEL: @test69(
+; CHECK: %1 = and i32 %c, -33
+; CHECK: %2 = icmp eq i32 %1, 65
+; CHECK: ret i1 %2
+define i1 @test69(i32 %c) nounwind uwtable {
+  %1 = icmp eq i32 %c, 97
+  %2 = icmp eq i32 %c, 65
+  %3 = or i1 %1, %2
+  ret i1 %3
+}
+
+; PR15940
+; CHECK-LABEL: @test70(
+; CHECK-NEXT: %A = srem i32 5, %X
+; CHECK-NEXT: %C = icmp ne i32 %A, 2
+; CHECK-NEXT: ret i1 %C
+define i1 @test70(i32 %X) {
+  %A = srem i32 5, %X
+  %B = add i32 %A, 2
+  %C = icmp ne i32 %B, 4
+  ret i1 %C
+}
+
+; CHECK-LABEL: @icmp_sext16trunc(
+; CHECK-NEXT: %1 = trunc i32 %x to i16
+; CHECK-NEXT: %cmp = icmp slt i16 %1, 36
+define i1 @icmp_sext16trunc(i32 %x) {
+  %trunc = trunc i32 %x to i16
+  %sext = sext i16 %trunc to i32
+  %cmp = icmp slt i32 %sext, 36
+  ret i1 %cmp
+}
+
+; CHECK-LABEL: @icmp_sext8trunc(
+; CHECK-NEXT: %1 = trunc i32 %x to i8
+; CHECK-NEXT: %cmp = icmp slt i8 %1, 36
+define i1 @icmp_sext8trunc(i32 %x) {
+  %trunc = trunc i32 %x to i8
+  %sext = sext i8 %trunc to i32
+  %cmp = icmp slt i32 %sext, 36
+  ret i1 %cmp
+}
+
+; CHECK-LABEL: @icmp_shl16(
+; CHECK-NEXT: %1 = trunc i32 %x to i16
+; CHECK-NEXT: %cmp = icmp slt i16 %1, 36
+define i1 @icmp_shl16(i32 %x) {
+  %shl = shl i32 %x, 16
+  %cmp = icmp slt i32 %shl, 2359296
+  ret i1 %cmp
+}
+
+; CHECK-LABEL: @icmp_shl24(
+; CHECK-NEXT: %1 = trunc i32 %x to i8
+; CHECK-NEXT: %cmp = icmp slt i8 %1, 36
+define i1 @icmp_shl24(i32 %x) {
+  %shl = shl i32 %x, 24
+  %cmp = icmp slt i32 %shl, 603979776
+  ret i1 %cmp
+}
+
+; If the (shl x, C) preserved the sign and this is a sign test,
+; compare the LHS operand instead
+; CHECK-LABEL: @icmp_shl_nsw_sgt(
+; CHECK-NEXT: icmp sgt i32 %x, 0
+define i1 @icmp_shl_nsw_sgt(i32 %x) {
+  %shl = shl nsw i32 %x, 21
+  %cmp = icmp sgt i32 %shl, 0
+  ret i1 %cmp
+}
+
+; CHECK-LABEL: @icmp_shl_nsw_sge0(
+; CHECK-NEXT: icmp sgt i32 %x, -1
+define i1 @icmp_shl_nsw_sge0(i32 %x) {
+  %shl = shl nsw i32 %x, 21
+  %cmp = icmp sge i32 %shl, 0
+  ret i1 %cmp
+}
+
+; CHECK-LABEL: @icmp_shl_nsw_sge1(
+; CHECK-NEXT: icmp sgt i32 %x, 0
+define i1 @icmp_shl_nsw_sge1(i32 %x) {
+  %shl = shl nsw i32 %x, 21
+  %cmp = icmp sge i32 %shl, 1
+  ret i1 %cmp
+}
+
+; Checks for icmp (eq|ne) (shl x, C), 0
+; CHECK-LABEL: @icmp_shl_nsw_eq(
+; CHECK-NEXT: icmp eq i32 %x, 0
+define i1 @icmp_shl_nsw_eq(i32 %x) {
+  %mul = shl nsw i32 %x, 5
+  %cmp = icmp eq i32 %mul, 0
+  ret i1 %cmp
+}
+
+; CHECK-LABEL: @icmp_shl_eq(
+; CHECK-NOT: icmp eq i32 %mul, 0
+define i1 @icmp_shl_eq(i32 %x) {
+  %mul = shl i32 %x, 5
+  %cmp = icmp eq i32 %mul, 0
+  ret i1 %cmp
+}
+
+; CHECK-LABEL: @icmp_shl_nsw_ne(
+; CHECK-NEXT: icmp ne i32 %x, 0
+define i1 @icmp_shl_nsw_ne(i32 %x) {
+  %mul = shl nsw i32 %x, 7
+  %cmp = icmp ne i32 %mul, 0
+  ret i1 %cmp
+}
+
+; CHECK-LABEL: @icmp_shl_ne(
+; CHECK-NOT: icmp ne i32 %x, 0
+define i1 @icmp_shl_ne(i32 %x) {
+  %mul = shl i32 %x, 7
+  %cmp = icmp ne i32 %mul, 0
+  ret i1 %cmp
+}
+
+; If the (mul x, C) preserved the sign and this is sign test,
+; compare the LHS operand instead
+; CHECK-LABEL: @icmp_mul_nsw(
+; CHECK-NEXT: icmp sgt i32 %x, 0
+define i1 @icmp_mul_nsw(i32 %x) {
+  %mul = mul nsw i32 %x, 12
+  %cmp = icmp sgt i32 %mul, 0
+  ret i1 %cmp
+}
+
+; CHECK-LABEL: @icmp_mul_nsw1(
+; CHECK-NEXT: icmp slt i32 %x, 0
+define i1 @icmp_mul_nsw1(i32 %x) {
+  %mul = mul nsw i32 %x, 12
+  %cmp = icmp sle i32 %mul, -1
+  ret i1 %cmp
+}
+
+; CHECK-LABEL: @icmp_mul_nsw_neg(
+; CHECK-NEXT: icmp slt i32 %x, 1
+define i1 @icmp_mul_nsw_neg(i32 %x) {
+  %mul = mul nsw i32 %x, -12
+  %cmp = icmp sge i32 %mul, 0
+  ret i1 %cmp
+}
+
+; CHECK-LABEL: @icmp_mul_nsw_neg1(
+; CHECK-NEXT: icmp slt i32 %x, 0
+define i1 @icmp_mul_nsw_neg1(i32 %x) {
+  %mul = mul nsw i32 %x, -12
+  %cmp = icmp sge i32 %mul, 1
+  ret i1 %cmp
+}
+
+; CHECK-LABEL: @icmp_mul_nsw_0(
+; CHECK-NOT: icmp sgt i32 %x, 0
+define i1 @icmp_mul_nsw_0(i32 %x) {
+  %mul = mul nsw i32 %x, 0
+  %cmp = icmp sgt i32 %mul, 0
+  ret i1 %cmp
+}
+
+; CHECK-LABEL: @icmp_mul(
+; CHECK-NEXT: %mul = mul i32 %x, -12
+define i1 @icmp_mul(i32 %x) {
+  %mul = mul i32 %x, -12
+  %cmp = icmp sge i32 %mul, 0
+  ret i1 %cmp
+}
+
+; Checks for icmp (eq|ne) (mul x, C), 0
+; CHECK-LABEL: @icmp_mul_neq0(
+; CHECK-NEXT: icmp ne i32 %x, 0
+define i1 @icmp_mul_neq0(i32 %x) {
+  %mul = mul nsw i32 %x, -12
+  %cmp = icmp ne i32 %mul, 0
+  ret i1 %cmp
+}
+
+; CHECK-LABEL: @icmp_mul_eq0(
+; CHECK-NEXT: icmp eq i32 %x, 0
+define i1 @icmp_mul_eq0(i32 %x) {
+  %mul = mul nsw i32 %x, 12
+  %cmp = icmp eq i32 %mul, 0
+  ret i1 %cmp
+}
+
+; CHECK-LABEL: @icmp_mul0_eq0(
+; CHECK-NEXT: ret i1 true
+define i1 @icmp_mul0_eq0(i32 %x) {
+  %mul = mul i32 %x, 0
+  %cmp = icmp eq i32 %mul, 0
+  ret i1 %cmp
+}
+
+; CHECK-LABEL: @icmp_mul0_ne0(
+; CHECK-NEXT: ret i1 false
+define i1 @icmp_mul0_ne0(i32 %x) {
+  %mul = mul i32 %x, 0
+  %cmp = icmp ne i32 %mul, 0
+  ret i1 %cmp
+}
+
+; CHECK-LABEL: @icmp_sub1_sge(
+; CHECK-NEXT: icmp sgt i32 %x, %y
+define i1 @icmp_sub1_sge(i32 %x, i32 %y) {
+  %sub = add nsw i32 %x, -1
+  %cmp = icmp sge i32 %sub, %y
+  ret i1 %cmp
+}
+
+; CHECK-LABEL: @icmp_add1_sgt(
+; CHECK-NEXT: icmp sge i32 %x, %y
+define i1 @icmp_add1_sgt(i32 %x, i32 %y) {
+  %add = add nsw i32 %x, 1
+  %cmp = icmp sgt i32 %add, %y
+  ret i1 %cmp
+}
+
+; CHECK-LABEL: @icmp_sub1_slt(
+; CHECK-NEXT: icmp sle i32 %x, %y
+define i1 @icmp_sub1_slt(i32 %x, i32 %y) {
+  %sub = add nsw i32 %x, -1
+  %cmp = icmp slt i32 %sub, %y
+  ret i1 %cmp
+}
+
+; CHECK-LABEL: @icmp_add1_sle(
+; CHECK-NEXT: icmp slt i32 %x, %y
+define i1 @icmp_add1_sle(i32 %x, i32 %y) {
+  %add = add nsw i32 %x, 1
+  %cmp = icmp sle i32 %add, %y
+  ret i1 %cmp
+}
+
+; CHECK-LABEL: @icmp_add20_sge_add57(
+; CHECK-NEXT: [[ADD:%[a-z0-9]+]] = add nsw i32 %y, 37
+; CHECK-NEXT: icmp sle i32 [[ADD]], %x
+define i1 @icmp_add20_sge_add57(i32 %x, i32 %y) {
+  %1 = add nsw i32 %x, 20
+  %2 = add nsw i32 %y, 57
+  %cmp = icmp sge i32 %1, %2
+  ret i1 %cmp
+}
+
+; CHECK-LABEL: @icmp_sub57_sge_sub20(
+; CHECK-NEXT: [[SUB:%[a-z0-9]+]] = add nsw i32 %x, -37
+; CHECK-NEXT: icmp sge i32 [[SUB]], %y
+define i1 @icmp_sub57_sge_sub20(i32 %x, i32 %y) {
+  %1 = add nsw i32 %x, -57
+  %2 = add nsw i32 %y, -20
+  %cmp = icmp sge i32 %1, %2
+  ret i1 %cmp
+}
+
+; CHECK-LABEL: @icmp_and_shl_neg_ne_0(
+; CHECK-NEXT: [[SHL:%[a-z0-9]+]] = shl i32 1, %B
+; CHECK-NEXT: [[AND:%[a-z0-9]+]] = and i32 [[SHL]], %A
+; CHECK-NEXT: [[CMP:%[a-z0-9]+]] = icmp eq i32 [[AND]], 0
+; CHECK-NEXT: ret i1 [[CMP]]
+define i1 @icmp_and_shl_neg_ne_0(i32 %A, i32 %B) {
+  %neg = xor i32 %A, -1
+  %shl = shl i32 1, %B
+  %and = and i32 %shl, %neg
+  %cmp = icmp ne i32 %and, 0
+  ret i1 %cmp
+}
+
+; CHECK-LABEL: @icmp_and_shl_neg_eq_0(
+; CHECK-NEXT: [[SHL:%[a-z0-9]+]] = shl i32 1, %B
+; CHECK-NEXT: [[AND:%[a-z0-9]+]] = and i32 [[SHL]], %A
+; CHECK-NEXT: [[CMP:%[a-z0-9]+]] = icmp ne i32 [[AND]], 0
+; CHECK-NEXT: ret i1 [[CMP]]
+define i1 @icmp_and_shl_neg_eq_0(i32 %A, i32 %B) {
+  %neg = xor i32 %A, -1
+  %shl = shl i32 1, %B
+  %and = and i32 %shl, %neg
+  %cmp = icmp eq i32 %and, 0
+  ret i1 %cmp
+}
+
+; CHECK-LABEL: @icmp_add_and_shr_ne_0(
+; CHECK-NEXT: [[AND:%[a-z0-9]+]] = and i32 %X, 240
+; CHECK-NEXT: [[CMP:%[a-z0-9]+]] = icmp ne i32 [[AND]], 224
+; CHECK-NEXT: ret i1 [[CMP]]
+define i1 @icmp_add_and_shr_ne_0(i32 %X) {
+  %shr = lshr i32 %X, 4
+  %and = and i32 %shr, 15
+  %add = add i32 %and, -14
+  %tobool = icmp ne i32 %add, 0
+  ret i1 %tobool
+}
+
+; PR16244
+; CHECK-LABEL: define i1 @test71(
+; CHECK-NEXT: ret i1 false
+define i1 @test71(i8* %x) {
+  %a = getelementptr i8* %x, i64 8
+  %b = getelementptr inbounds i8* %x, i64 8
+  %c = icmp ugt i8* %a, %b
+  ret i1 %c
+}
+
+define i1 @test71_as1(i8 addrspace(1)* %x) {
+; CHECK-LABEL: @test71_as1(
+; CHECK-NEXT: ret i1 false
+  %a = getelementptr i8 addrspace(1)* %x, i64 8
+  %b = getelementptr inbounds i8 addrspace(1)* %x, i64 8
+  %c = icmp ugt i8 addrspace(1)* %a, %b
+  ret i1 %c
+}
+
+; CHECK-LABEL: @icmp_shl_1_V_ult_32(
+; CHECK-NEXT: [[CMP:%[a-z0-9]+]] = icmp ult i32 %V, 5
+; CHECK-NEXT: ret i1 [[CMP]]
+define i1 @icmp_shl_1_V_ult_32(i32 %V) {
+  %shl = shl i32 1, %V
+  %cmp = icmp ult i32 %shl, 32
+  ret i1 %cmp
+}
+
+; CHECK-LABEL: @icmp_shl_1_V_eq_32(
+; CHECK-NEXT: [[CMP:%[a-z0-9]+]] = icmp eq i32 %V, 5
+; CHECK-NEXT: ret i1 [[CMP]]
+define i1 @icmp_shl_1_V_eq_32(i32 %V) {
+  %shl = shl i32 1, %V
+  %cmp = icmp eq i32 %shl, 32
+  ret i1 %cmp
+}
+
+; CHECK-LABEL: @icmp_shl_1_V_eq_31(
+; CHECK-NEXT: ret i1 false
+define i1 @icmp_shl_1_V_eq_31(i32 %V) {
+  %shl = shl i32 1, %V
+  %cmp = icmp eq i32 %shl, 31
+  ret i1 %cmp
+}
+
+; CHECK-LABEL: @icmp_shl_1_V_ne_31(
+; CHECK-NEXT: ret i1 true
+define i1 @icmp_shl_1_V_ne_31(i32 %V) {
+  %shl = shl i32 1, %V
+  %cmp = icmp ne i32 %shl, 31
+  ret i1 %cmp
+}
+
+; CHECK-LABEL: @icmp_shl_1_V_ult_30(
+; CHECK-NEXT: [[CMP:%[a-z0-9]+]] = icmp ult i32 %V, 5
+; CHECK-NEXT: ret i1 [[CMP]]
+define i1 @icmp_shl_1_V_ult_30(i32 %V) {
+  %shl = shl i32 1, %V
+  %cmp = icmp ult i32 %shl, 30
+  ret i1 %cmp
+}
+
+; CHECK-LABEL: @icmp_shl_1_V_ugt_30(
+; CHECK-NEXT: [[CMP:%[a-z0-9]+]] = icmp ugt i32 %V, 4
+; CHECK-NEXT: ret i1 [[CMP]]
+define i1 @icmp_shl_1_V_ugt_30(i32 %V) {
+  %shl = shl i32 1, %V
+  %cmp = icmp ugt i32 %shl, 30
+  ret i1 %cmp
+}
+
+; CHECK-LABEL: @icmp_shl_1_V_ule_30(
+; CHECK-NEXT: [[CMP:%[a-z0-9]+]] = icmp ult i32 %V, 5
+; CHECK-NEXT: ret i1 [[CMP]]
+define i1 @icmp_shl_1_V_ule_30(i32 %V) {
+  %shl = shl i32 1, %V
+  %cmp = icmp ule i32 %shl, 30
+  ret i1 %cmp
+}
+
+; CHECK-LABEL: @icmp_shl_1_V_uge_30(
+; CHECK-NEXT: [[CMP:%[a-z0-9]+]] = icmp ugt i32 %V, 4
+; CHECK-NEXT: ret i1 [[CMP]]
+define i1 @icmp_shl_1_V_uge_30(i32 %V) {
+  %shl = shl i32 1, %V
+  %cmp = icmp uge i32 %shl, 30
+  ret i1 %cmp
+}
+
+; CHECK-LABEL: @icmp_shl_1_V_uge_2147483648(
+; CHECK-NEXT: [[CMP:%[a-z0-9]+]] = icmp eq i32 %V, 31
+; CHECK-NEXT: ret i1 [[CMP]]
+define i1 @icmp_shl_1_V_uge_2147483648(i32 %V) {
+  %shl = shl i32 1, %V
+  %cmp = icmp uge i32 %shl, 2147483648
+  ret i1 %cmp
+}
+
+; CHECK-LABEL: @icmp_shl_1_V_ugt_2147483648(
+; CHECK-NEXT: ret i1 false
+define i1 @icmp_shl_1_V_ugt_2147483648(i32 %V) {
+  %shl = shl i32 1, %V
+  %cmp = icmp ugt i32 %shl, 2147483648
+  ret i1 %cmp
+}
+
+; CHECK-LABEL: @icmp_shl_1_V_ule_2147483648(
+; CHECK-NEXT: ret i1 true
+define i1 @icmp_shl_1_V_ule_2147483648(i32 %V) {
+  %shl = shl i32 1, %V
+  %cmp = icmp ule i32 %shl, 2147483648
+  ret i1 %cmp
+}
+
+; CHECK-LABEL: @icmp_shl_1_V_ult_2147483648(
+; CHECK-NEXT: [[CMP:%[a-z0-9]+]] = icmp ne i32 %V, 31
+; CHECK-NEXT: ret i1 [[CMP]]
+define i1 @icmp_shl_1_V_ult_2147483648(i32 %V) {
+  %shl = shl i32 1, %V
+  %cmp = icmp ult i32 %shl, 2147483648
+  ret i1 %cmp
+}
+
+; CHECK-LABEL: @or_icmp_eq_B_0_icmp_ult_A_B(
+; CHECK-NEXT: [[SUB:%[a-z0-9]+]] = add i64 %b, -1
+; CHECK-NEXT: [[CMP:%[a-z0-9]+]] = icmp uge i64 [[SUB]], %a
+; CHECK-NEXT: ret i1 [[CMP]]
+define i1 @or_icmp_eq_B_0_icmp_ult_A_B(i64 %a, i64 %b) {
+  %1 = icmp eq i64 %b, 0
+  %2 = icmp ult i64 %a, %b
+  %3 = or i1 %1, %2
+  ret i1 %3
+}
+
+; CHECK-LABEL: @icmp_add_ult_2(
+; CHECK-NEXT: [[AND:%[a-z0-9]+]] = and i32 %X, -2
+; CHECK-NEXT: [[CMP:%[a-z0-9]+]] = icmp eq i32 [[AND]], 14
+; CHECK-NEXT: ret i1 [[CMP]]
+define i1 @icmp_add_ult_2(i32 %X) {
+  %add = add i32 %X, -14
+  %cmp = icmp ult i32 %add, 2
+  ret i1 %cmp
+}
+
+; CHECK: @icmp_add_X_-14_ult_2
+; CHECK-NEXT: [[AND:%[a-z0-9]+]] = and i32 %X, -2
+; CHECK-NEXT: [[CMP:%[a-z0-9]+]] = icmp eq i32 [[AND]], 14
+; CHECK-NEXT: ret i1 [[CMP]]
+define i1 @icmp_add_X_-14_ult_2(i32 %X) {
+  %add = add i32 %X, -14
+  %cmp = icmp ult i32 %add, 2
+  ret i1 %cmp
+}
+
+; CHECK-LABEL: @icmp_sub_3_X_ult_2(
+; CHECK-NEXT: [[OR:%[a-z0-9]+]] = or i32 %X, 1
+; CHECK-NEXT: [[CMP:%[a-z0-9]+]] = icmp eq i32 [[OR]], 3
+; CHECK-NEXT: ret i1 [[CMP]]
+define i1 @icmp_sub_3_X_ult_2(i32 %X) {
+  %add = sub i32 3, %X
+  %cmp = icmp ult i32 %add, 2
+  ret i1 %cmp
+}
+
+; CHECK: @icmp_add_X_-14_uge_2
+; CHECK-NEXT: [[AND:%[a-z0-9]+]] = and i32 %X, -2
+; CHECK-NEXT: [[CMP:%[a-z0-9]+]] = icmp ne i32 [[AND]], 14
+; CHECK-NEXT: ret i1 [[CMP]]
+define i1 @icmp_add_X_-14_uge_2(i32 %X) {
+  %add = add i32 %X, -14
+  %cmp = icmp uge i32 %add, 2
+  ret i1 %cmp
+}
+
+; CHECK-LABEL: @icmp_sub_3_X_uge_2(
+; CHECK-NEXT: [[OR:%[a-z0-9]+]] = or i32 %X, 1
+; CHECK-NEXT: [[CMP:%[a-z0-9]+]] = icmp ne i32 [[OR]], 3
+; CHECK-NEXT: ret i1 [[CMP]]
+define i1 @icmp_sub_3_X_uge_2(i32 %X) {
+  %add = sub i32 3, %X
+  %cmp = icmp uge i32 %add, 2
+  ret i1 %cmp
+}
+
+; CHECK: @icmp_and_X_-16_eq-16
+; CHECK-NEXT: [[CMP:%[a-z0-9]+]] = icmp ugt i32 %X, -17
+; CHECK-NEXT: ret i1 [[CMP]]
+define i1 @icmp_and_X_-16_eq-16(i32 %X) {
+  %and = and i32 %X, -16
+  %cmp = icmp eq i32 %and, -16
+  ret i1 %cmp
+}
+
+; CHECK: @icmp_and_X_-16_ne-16
+; CHECK-NEXT: [[CMP:%[a-z0-9]+]] = icmp ult i32 %X, -16
+; CHECK-NEXT: ret i1 [[CMP]]
+define i1 @icmp_and_X_-16_ne-16(i32 %X) {
+  %and = and i32 %X, -16
+  %cmp = icmp ne i32 %and, -16
+  ret i1 %cmp
+}
+
+; CHECK: @icmp_sub_-1_X_ult_4
+; CHECK-NEXT: [[CMP:%[a-z0-9]+]] = icmp ugt i32 %X, -5
+; CHECK-NEXT: ret i1 [[CMP]]
+define i1 @icmp_sub_-1_X_ult_4(i32 %X) {
+  %sub = sub i32 -1, %X
+  %cmp = icmp ult i32 %sub, 4
+  ret i1 %cmp
+}
+
+; CHECK: @icmp_sub_-1_X_uge_4
+; CHECK-NEXT: [[CMP:%[a-z0-9]+]] = icmp ult i32 %X, -4
+; CHECK-NEXT: ret i1 [[CMP]]
+define i1 @icmp_sub_-1_X_uge_4(i32 %X) {
+  %sub = sub i32 -1, %X
+  %cmp = icmp uge i32 %sub, 4
+  ret i1 %cmp
+}
+
+; CHECK-LABEL: @icmp_swap_operands_for_cse
+; CHECK: [[CMP:%[a-z0-9]+]] = icmp ult i32 %X, %Y
+; CHECK-NEXT: br i1 [[CMP]], label %true, label %false
+; CHECK: ret i1
+define i1 @icmp_swap_operands_for_cse(i32 %X, i32 %Y) {
+entry:
+  %sub = sub i32 %X, %Y
+  %cmp = icmp ugt i32 %Y, %X
+  br i1 %cmp, label %true, label %false
+true:
+  %restrue = trunc i32 %sub to i1
+  br label %end
+false:
+  %shift = lshr i32 %sub, 4
+  %resfalse = trunc i32 %shift to i1
+  br label %end
+end:
+  %res = phi i1 [%restrue, %true], [%resfalse, %false]
+  ret i1 %res
+}
+
+; CHECK-LABEL: @icmp_swap_operands_for_cse2
+; CHECK: [[CMP:%[a-z0-9]+]] = icmp ult i32 %X, %Y
+; CHECK-NEXT: br i1 [[CMP]], label %true, label %false
+; CHECK: ret i1
+define i1 @icmp_swap_operands_for_cse2(i32 %X, i32 %Y) {
+entry:
+  %cmp = icmp ugt i32 %Y, %X
+  br i1 %cmp, label %true, label %false
+true:
+  %sub = sub i32 %X, %Y
+  %sub1 = sub i32 %X, %Y
+  %add = add i32 %sub, %sub1
+  %restrue = trunc i32 %add to i1
+  br label %end
+false:
+  %sub2 = sub i32 %Y, %X
+  %resfalse = trunc i32 %sub2 to i1
+  br label %end
+end:
+  %res = phi i1 [%restrue, %true], [%resfalse, %false]
+  ret i1 %res
+}
+
+; CHECK-LABEL: @icmp_do_not_swap_operands_for_cse
+; CHECK: [[CMP:%[a-z0-9]+]] = icmp ugt i32 %Y, %X
+; CHECK-NEXT: br i1 [[CMP]], label %true, label %false
+; CHECK: ret i1
+define i1 @icmp_do_not_swap_operands_for_cse(i32 %X, i32 %Y) {
+entry:
+  %cmp = icmp ugt i32 %Y, %X
+  br i1 %cmp, label %true, label %false
+true:
+  %sub = sub i32 %X, %Y
+  %restrue = trunc i32 %sub to i1
+  br label %end
+false:
+  %sub2 = sub i32 %Y, %X
+  %resfalse = trunc i32 %sub2 to i1
+  br label %end
+end:
+  %res = phi i1 [%restrue, %true], [%resfalse, %false]
+  ret i1 %res
 }