; This test makes sure that these instructions are properly eliminated.
-;
-; RUN: llvm-as < %s | opt -instcombine | llvm-dis | \
-; RUN: grep -v xor | not grep {or }
-; END.
+; RUN: opt < %s -instcombine -S | FileCheck %s
+
+target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
define i32 @test1(i32 %A) {
- %B = or i32 %A, 0 ; <i32> [#uses=1]
+ %B = or i32 %A, 0
ret i32 %B
+; CHECK: @test1
+; CHECK: ret i32 %A
}
define i32 @test2(i32 %A) {
- %B = or i32 %A, -1 ; <i32> [#uses=1]
+ %B = or i32 %A, -1
ret i32 %B
+; CHECK: @test2
+; CHECK: ret i32 -1
}
define i8 @test2a(i8 %A) {
- %B = or i8 %A, -1 ; <i8> [#uses=1]
+ %B = or i8 %A, -1
ret i8 %B
+; CHECK: @test2a
+; CHECK: ret i8 -1
}
define i1 @test3(i1 %A) {
- %B = or i1 %A, false ; <i1> [#uses=1]
+ %B = or i1 %A, false
ret i1 %B
+; CHECK: @test3
+; CHECK: ret i1 %A
}
define i1 @test4(i1 %A) {
- %B = or i1 %A, true ; <i1> [#uses=1]
+ %B = or i1 %A, true
ret i1 %B
+; CHECK: @test4
+; CHECK: ret i1 true
}
define i1 @test5(i1 %A) {
- %B = or i1 %A, %A ; <i1> [#uses=1]
+ %B = or i1 %A, %A
ret i1 %B
+; CHECK: @test5
+; CHECK: ret i1 %A
}
define i32 @test6(i32 %A) {
- %B = or i32 %A, %A ; <i32> [#uses=1]
+ %B = or i32 %A, %A
ret i32 %B
+; CHECK: @test6
+; CHECK: ret i32 %A
}
; A | ~A == -1
define i32 @test7(i32 %A) {
- %NotA = xor i32 -1, %A ; <i32> [#uses=1]
- %B = or i32 %A, %NotA ; <i32> [#uses=1]
+ %NotA = xor i32 -1, %A
+ %B = or i32 %A, %NotA
ret i32 %B
+; CHECK: @test7
+; CHECK: ret i32 -1
}
define i8 @test8(i8 %A) {
- %B = or i8 %A, -2 ; <i8> [#uses=1]
- %C = or i8 %B, 1 ; <i8> [#uses=1]
+ %B = or i8 %A, -2
+ %C = or i8 %B, 1
ret i8 %C
+; CHECK: @test8
+; CHECK: ret i8 -1
}
; Test that (A|c1)|(B|c2) == (A|B)|(c1|c2)
define i8 @test9(i8 %A, i8 %B) {
- %C = or i8 %A, 1 ; <i8> [#uses=1]
- %D = or i8 %B, -2 ; <i8> [#uses=1]
- %E = or i8 %C, %D ; <i8> [#uses=1]
+ %C = or i8 %A, 1
+ %D = or i8 %B, -2
+ %E = or i8 %C, %D
ret i8 %E
+; CHECK: @test9
+; CHECK: ret i8 -1
}
define i8 @test10(i8 %A) {
- %B = or i8 %A, 1 ; <i8> [#uses=1]
- %C = and i8 %B, -2 ; <i8> [#uses=1]
+ %B = or i8 %A, 1
+ %C = and i8 %B, -2
; (X & C1) | C2 --> (X | C2) & (C1|C2)
- %D = or i8 %C, -2 ; <i8> [#uses=1]
+ %D = or i8 %C, -2
ret i8 %D
+; CHECK: @test10
+; CHECK: ret i8 -2
}
define i8 @test11(i8 %A) {
- %B = or i8 %A, -2 ; <i8> [#uses=1]
- %C = xor i8 %B, 13 ; <i8> [#uses=1]
+ %B = or i8 %A, -2
+ %C = xor i8 %B, 13
; (X ^ C1) | C2 --> (X | C2) ^ (C1&~C2)
- %D = or i8 %C, 1 ; <i8> [#uses=1]
- %E = xor i8 %D, 12 ; <i8> [#uses=1]
+ %D = or i8 %C, 1
+ %E = xor i8 %D, 12
ret i8 %E
+; CHECK: @test11
+; CHECK: ret i8 -1
}
define i32 @test12(i32 %A) {
; Should be eliminated
- %B = or i32 %A, 4 ; <i32> [#uses=1]
- %C = and i32 %B, 8 ; <i32> [#uses=1]
+ %B = or i32 %A, 4
+ %C = and i32 %B, 8
ret i32 %C
+; CHECK: @test12
+; CHECK: %C = and i32 %A, 8
+; CHECK: ret i32 %C
}
define i32 @test13(i32 %A) {
- %B = or i32 %A, 12 ; <i32> [#uses=1]
+ %B = or i32 %A, 12
; Always equal to 8
- %C = and i32 %B, 8 ; <i32> [#uses=1]
+ %C = and i32 %B, 8
ret i32 %C
+; CHECK: @test13
+; CHECK: ret i32 8
}
define i1 @test14(i32 %A, i32 %B) {
- %C1 = icmp ult i32 %A, %B ; <i1> [#uses=1]
- %C2 = icmp ugt i32 %A, %B ; <i1> [#uses=1]
+ %C1 = icmp ult i32 %A, %B
+ %C2 = icmp ugt i32 %A, %B
; (A < B) | (A > B) === A != B
- %D = or i1 %C1, %C2 ; <i1> [#uses=1]
+ %D = or i1 %C1, %C2
ret i1 %D
+; CHECK: @test14
+; CHECK: icmp ne i32 %A, %B
+; CHECK: ret i1
}
define i1 @test15(i32 %A, i32 %B) {
- %C1 = icmp ult i32 %A, %B ; <i1> [#uses=1]
- %C2 = icmp eq i32 %A, %B ; <i1> [#uses=1]
+ %C1 = icmp ult i32 %A, %B
+ %C2 = icmp eq i32 %A, %B
; (A < B) | (A == B) === A <= B
- %D = or i1 %C1, %C2 ; <i1> [#uses=1]
+ %D = or i1 %C1, %C2
ret i1 %D
+; CHECK: @test15
+; CHECK: icmp ule i32 %A, %B
+; CHECK: ret i1
}
define i32 @test16(i32 %A) {
- %B = and i32 %A, 1 ; <i32> [#uses=1]
+ %B = and i32 %A, 1
; -2 = ~1
- %C = and i32 %A, -2 ; <i32> [#uses=1]
+ %C = and i32 %A, -2
; %D = and int %B, -1 == %B
- %D = or i32 %B, %C ; <i32> [#uses=1]
+ %D = or i32 %B, %C
ret i32 %D
+; CHECK: @test16
+; CHECK: ret i32 %A
}
define i32 @test17(i32 %A) {
- %B = and i32 %A, 1 ; <i32> [#uses=1]
- %C = and i32 %A, 4 ; <i32> [#uses=1]
+ %B = and i32 %A, 1
+ %C = and i32 %A, 4
; %D = and int %B, 5
- %D = or i32 %B, %C ; <i32> [#uses=1]
+ %D = or i32 %B, %C
ret i32 %D
+; CHECK: @test17
+; CHECK: %D = and i32 %A, 5
+; CHECK: ret i32 %D
}
define i1 @test18(i32 %A) {
- %B = icmp sge i32 %A, 100 ; <i1> [#uses=1]
- %C = icmp slt i32 %A, 50 ; <i1> [#uses=1]
+ %B = icmp sge i32 %A, 100
+ %C = icmp slt i32 %A, 50
;; (A-50) >u 50
- %D = or i1 %B, %C ; <i1> [#uses=1]
+ %D = or i1 %B, %C
ret i1 %D
+; CHECK: @test18
+; CHECK: add i32
+; CHECK: icmp ugt
+; CHECK: ret i1
}
define i1 @test19(i32 %A) {
- %B = icmp eq i32 %A, 50 ; <i1> [#uses=1]
- %C = icmp eq i32 %A, 51 ; <i1> [#uses=1]
+ %B = icmp eq i32 %A, 50
+ %C = icmp eq i32 %A, 51
;; (A-50) < 2
- %D = or i1 %B, %C ; <i1> [#uses=1]
+ %D = or i1 %B, %C
ret i1 %D
+; CHECK: @test19
+; CHECK: add i32
+; CHECK: icmp ult
+; CHECK: ret i1
}
define i32 @test20(i32 %x) {
- %y = and i32 %x, 123 ; <i32> [#uses=1]
- %z = or i32 %y, %x ; <i32> [#uses=1]
+ %y = and i32 %x, 123
+ %z = or i32 %y, %x
ret i32 %z
+; CHECK: @test20
+; CHECK: ret i32 %x
}
define i32 @test21(i32 %tmp.1) {
- %tmp.1.mask1 = add i32 %tmp.1, 2 ; <i32> [#uses=1]
- %tmp.3 = and i32 %tmp.1.mask1, -2 ; <i32> [#uses=1]
- %tmp.5 = and i32 %tmp.1, 1 ; <i32> [#uses=1]
+ %tmp.1.mask1 = add i32 %tmp.1, 2
+ %tmp.3 = and i32 %tmp.1.mask1, -2
+ %tmp.5 = and i32 %tmp.1, 1
;; add tmp.1, 2
- %tmp.6 = or i32 %tmp.5, %tmp.3 ; <i32> [#uses=1]
+ %tmp.6 = or i32 %tmp.5, %tmp.3
ret i32 %tmp.6
+; CHECK: @test21
+; CHECK: add i32 %{{[^,]*}}, 2
+; CHECK: ret i32
}
define i32 @test22(i32 %B) {
- %ELIM41 = and i32 %B, 1 ; <i32> [#uses=1]
- %ELIM7 = and i32 %B, -2 ; <i32> [#uses=1]
- %ELIM5 = or i32 %ELIM41, %ELIM7 ; <i32> [#uses=1]
+ %ELIM41 = and i32 %B, 1
+ %ELIM7 = and i32 %B, -2
+ %ELIM5 = or i32 %ELIM41, %ELIM7
ret i32 %ELIM5
+; CHECK: @test22
+; CHECK: ret i32 %B
}
define i16 @test23(i16 %A) {
- %B = lshr i16 %A, 1 ; <i16> [#uses=1]
+ %B = lshr i16 %A, 1
;; fold or into xor
- %C = or i16 %B, -32768 ; <i16> [#uses=1]
- %D = xor i16 %C, 8193 ; <i16> [#uses=1]
+ %C = or i16 %B, -32768
+ %D = xor i16 %C, 8193
ret i16 %D
+; CHECK: @test23
+; CHECK: %B = lshr i16 %A, 1
+; CHECK: %D = xor i16 %B, -24575
+; CHECK: ret i16 %D
+}
+
+; PR1738
+define i1 @test24(double %X, double %Y) {
+ %tmp9 = fcmp uno double %X, 0.000000e+00 ; <i1> [#uses=1]
+ %tmp13 = fcmp uno double %Y, 0.000000e+00 ; <i1> [#uses=1]
+ %bothcond = or i1 %tmp13, %tmp9 ; <i1> [#uses=1]
+ ret i1 %bothcond
+
+; CHECK: @test24
+; CHECK: = fcmp uno double %Y, %X
+; CHECK: ret i1
+}
+
+; PR3266 & PR5276
+define i1 @test25(i32 %A, i32 %B) {
+ %C = icmp eq i32 %A, 0
+ %D = icmp eq i32 %B, 57
+ %E = or i1 %C, %D
+ %F = xor i1 %E, -1
+ ret i1 %F
+
+; CHECK: @test25
+; CHECK: icmp ne i32 %A, 0
+; CHECK-NEXT: icmp ne i32 %B, 57
+; CHECK-NEXT: %F = and i1
+; CHECK-NEXT: ret i1 %F
+}
+
+; PR5634
+define i1 @test26(i32 %A, i32 %B) {
+ %C1 = icmp eq i32 %A, 0
+ %C2 = icmp eq i32 %B, 0
+ ; (A == 0) & (A == 0) --> (A|B) == 0
+ %D = and i1 %C1, %C2
+ ret i1 %D
+; CHECK: @test26
+; CHECK: or i32 %A, %B
+; CHECK: icmp eq i32 {{.*}}, 0
+; CHECK: ret i1
+}
+
+define i1 @test27(i32* %A, i32* %B) {
+ %C1 = ptrtoint i32* %A to i32
+ %C2 = ptrtoint i32* %B to i32
+ %D = or i32 %C1, %C2
+ %E = icmp eq i32 %D, 0
+ ret i1 %E
+; CHECK: @test27
+; CHECK: icmp eq i32* %A, null
+; CHECK: icmp eq i32* %B, null
+; CHECK: and i1
+; CHECK: ret i1
+}
+
+; PR5634
+define i1 @test28(i32 %A, i32 %B) {
+ %C1 = icmp ne i32 %A, 0
+ %C2 = icmp ne i32 %B, 0
+ ; (A != 0) | (A != 0) --> (A|B) != 0
+ %D = or i1 %C1, %C2
+ ret i1 %D
+; CHECK: @test28
+; CHECK: or i32 %A, %B
+; CHECK: icmp ne i32 {{.*}}, 0
+; CHECK: ret i1
+}
+
+define i1 @test29(i32* %A, i32* %B) {
+ %C1 = ptrtoint i32* %A to i32
+ %C2 = ptrtoint i32* %B to i32
+ %D = or i32 %C1, %C2
+ %E = icmp ne i32 %D, 0
+ ret i1 %E
+; CHECK: @test29
+; CHECK: icmp ne i32* %A, null
+; CHECK: icmp ne i32* %B, null
+; CHECK: or i1
+; CHECK: ret i1
+}
+
+; PR4216
+define i32 @test30(i32 %A) {
+entry:
+ %B = or i32 %A, 32962
+ %C = and i32 %A, -65536
+ %D = and i32 %B, 40186
+ %E = or i32 %D, %C
+ ret i32 %E
+; CHECK: @test30
+; CHECK: %B = or i32 %A, 32962
+; CHECK: %E = and i32 %B, -25350
+; CHECK: ret i32 %E
+}
+
+; PR4216
+define i64 @test31(i64 %A) nounwind readnone ssp noredzone {
+ %B = or i64 %A, 194
+ %D = and i64 %B, 250
+
+ %C = or i64 %A, 32768
+ %E = and i64 %C, 4294941696
+
+ %F = or i64 %D, %E
+ ret i64 %F
+; CHECK: @test31
+; CHECK-NEXT: %bitfield = or i64 %A, 32962
+; CHECK-NEXT: %F = and i64 %bitfield, 4294941946
+; CHECK-NEXT: ret i64 %F
+}
+
+define <4 x i32> @test32(<4 x i1> %and.i1352, <4 x i32> %vecinit6.i176, <4 x i32> %vecinit6.i191) {
+ %and.i135 = sext <4 x i1> %and.i1352 to <4 x i32> ; <<4 x i32>> [#uses=2]
+ %and.i129 = and <4 x i32> %vecinit6.i176, %and.i135 ; <<4 x i32>> [#uses=1]
+ %neg.i = xor <4 x i32> %and.i135, <i32 -1, i32 -1, i32 -1, i32 -1> ; <<4 x i32>> [#uses=1]
+ %and.i = and <4 x i32> %vecinit6.i191, %neg.i ; <<4 x i32>> [#uses=1]
+ %or.i = or <4 x i32> %and.i, %and.i129 ; <<4 x i32>> [#uses=1]
+ ret <4 x i32> %or.i
+; Don't turn this into a vector select until codegen matures to handle them
+; better.
+; CHECK: @test32
+; CHECK: or <4 x i32> %and.i, %and.i129
+}
+
+; PR6773
+define i32 @test33(i32 %x, i32 %y, i32 %z) nounwind readnone {
+ %and = and i32 %y, %x
+ %not = xor i32 %x, -1
+ %and2 = and i32 %z, %not
+ %or = or i32 %and2, %and
+ ret i32 %or
+; CHECK: @test33
+; CHECK-NEXT: xor i32
+; CHECK-NEXT: and i32
+; CHECK-NEXT: xor i32
+; CHECK-NEXT: ret i32
}