| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; RUN: opt < %s -passes=instsimplify -S | FileCheck %s |
| |
| define i32 @test1(i32 %A) { |
| ; CHECK-LABEL: @test1( |
| ; CHECK-NEXT: ret i32 [[A:%.*]] |
| ; |
| %B = or i32 %A, 0 |
| ret i32 %B |
| } |
| |
| define i32 @all_ones(i32 %A) { |
| ; CHECK-LABEL: @all_ones( |
| ; CHECK-NEXT: ret i32 -1 |
| ; |
| %B = or i32 %A, -1 |
| ret i32 %B |
| } |
| |
| define <3 x i8> @all_ones_vec_with_undef_elt(<3 x i8> %A) { |
| ; CHECK-LABEL: @all_ones_vec_with_undef_elt( |
| ; CHECK-NEXT: ret <3 x i8> <i8 -1, i8 -1, i8 -1> |
| ; |
| %B = or <3 x i8> %A, <i8 -1, i8 undef, i8 -1> |
| ret <3 x i8> %B |
| } |
| |
| define i1 @test3(i1 %A) { |
| ; CHECK-LABEL: @test3( |
| ; CHECK-NEXT: ret i1 [[A:%.*]] |
| ; |
| %B = or i1 %A, false |
| ret i1 %B |
| } |
| |
| define i1 @test4(i1 %A) { |
| ; CHECK-LABEL: @test4( |
| ; CHECK-NEXT: ret i1 true |
| ; |
| %B = or i1 %A, true |
| ret i1 %B |
| } |
| |
| define i1 @test5(i1 %A) { |
| ; CHECK-LABEL: @test5( |
| ; CHECK-NEXT: ret i1 [[A:%.*]] |
| ; |
| %B = or i1 %A, %A |
| ret i1 %B |
| } |
| |
| define i32 @test6(i32 %A) { |
| ; CHECK-LABEL: @test6( |
| ; CHECK-NEXT: ret i32 [[A:%.*]] |
| ; |
| %B = or i32 %A, %A |
| ret i32 %B |
| } |
| |
| ; A | ~A == -1 |
| |
| define i32 @or_not(i32 %A) { |
| ; CHECK-LABEL: @or_not( |
| ; CHECK-NEXT: ret i32 -1 |
| ; |
| %NotA = xor i32 %A, -1 |
| %B = or i32 %A, %NotA |
| ret i32 %B |
| } |
| |
| define <2 x i4> @or_not_commute_vec_undef(<2 x i4> %A) { |
| ; CHECK-LABEL: @or_not_commute_vec_undef( |
| ; CHECK-NEXT: ret <2 x i4> <i4 -1, i4 -1> |
| ; |
| %NotA = xor <2 x i4> %A, <i4 -1, i4 undef> |
| %B = or <2 x i4> %NotA, %A |
| ret <2 x i4> %B |
| } |
| |
| define i8 @test8(i8 %A) { |
| ; CHECK-LABEL: @test8( |
| ; CHECK-NEXT: ret i8 -1 |
| ; |
| %B = or i8 %A, -2 |
| %C = or i8 %B, 1 |
| ret i8 %C |
| } |
| |
| ; Test that (A|c1)|(B|c2) == (A|B)|(c1|c2) |
| define i8 @test9(i8 %A, i8 %B) { |
| ; CHECK-LABEL: @test9( |
| ; CHECK-NEXT: ret i8 -1 |
| ; |
| %C = or i8 %A, 1 |
| %D = or i8 %B, -2 |
| %E = or i8 %C, %D |
| ret i8 %E |
| } |
| |
| ; (X & C1) | C2 --> (X | C2) & (C1|C2) |
| define i8 @test10(i8 %A) { |
| ; CHECK-LABEL: @test10( |
| ; CHECK-NEXT: ret i8 -2 |
| ; |
| %B = or i8 %A, 1 |
| %C = and i8 %B, -2 |
| %D = or i8 %C, -2 |
| ret i8 %D |
| } |
| |
| ; The following two cases only get folded by InstCombine, |
| ; see InstCombine/or-xor.ll. |
| |
| ; (X ^ C1) | C2 --> (X | C2) ^ (C1&~C2) |
| define i8 @test11(i8 %A) { |
| ; CHECK-LABEL: @test11( |
| ; CHECK-NEXT: [[B:%.*]] = or i8 [[A:%.*]], -2 |
| ; CHECK-NEXT: [[C:%.*]] = xor i8 [[B]], 13 |
| ; CHECK-NEXT: [[D:%.*]] = or i8 [[C]], 1 |
| ; CHECK-NEXT: [[E:%.*]] = xor i8 [[D]], 12 |
| ; CHECK-NEXT: ret i8 [[E]] |
| ; |
| %B = or i8 %A, -2 |
| %C = xor i8 %B, 13 |
| %D = or i8 %C, 1 |
| %E = xor i8 %D, 12 |
| ret i8 %E |
| } |
| |
| define i8 @test11v(<2 x i8> %A) { |
| ; CHECK-LABEL: @test11v( |
| ; CHECK-NEXT: [[B:%.*]] = or <2 x i8> [[A:%.*]], <i8 -2, i8 0> |
| ; CHECK-NEXT: [[CV:%.*]] = xor <2 x i8> [[B]], <i8 13, i8 13> |
| ; CHECK-NEXT: [[C:%.*]] = extractelement <2 x i8> [[CV]], i32 0 |
| ; CHECK-NEXT: [[D:%.*]] = or i8 [[C]], 1 |
| ; CHECK-NEXT: [[E:%.*]] = xor i8 [[D]], 12 |
| ; CHECK-NEXT: ret i8 [[E]] |
| ; |
| %B = or <2 x i8> %A, <i8 -2, i8 0> |
| %CV = xor <2 x i8> %B, <i8 13, i8 13> |
| %C = extractelement <2 x i8> %CV, i32 0 |
| %D = or i8 %C, 1 |
| %E = xor i8 %D, 12 |
| ret i8 %E |
| } |
| |
| ; Test the case where integer BitWidth <= 64 && BitWidth % 2 != 0. |
| ; If we have: ((V + N) & C1) | (V & C2) |
| ; .. and C2 = ~C1 and C2 is 0+1+ and (N & C2) == 0 |
| ; replace with V+N. |
| define i39 @test1_apint(i39 %V, i39 %M) { |
| ; CHECK-LABEL: @test1_apint( |
| ; CHECK-NEXT: [[N:%.*]] = and i39 [[M:%.*]], -274877906944 |
| ; CHECK-NEXT: [[A:%.*]] = add i39 [[V:%.*]], [[N]] |
| ; CHECK-NEXT: ret i39 [[A]] |
| ; |
| %C1 = xor i39 274877906943, -1 ;; C2 = 274877906943 |
| %N = and i39 %M, 274877906944 |
| %A = add i39 %V, %N |
| %B = and i39 %A, %C1 |
| %D = and i39 %V, 274877906943 |
| %R = or i39 %B, %D |
| ret i39 %R |
| } |
| |
| define i7 @test2_apint(i7 %X) { |
| ; CHECK-LABEL: @test2_apint( |
| ; CHECK-NEXT: ret i7 [[X:%.*]] |
| ; |
| %Y = or i7 %X, 0 |
| ret i7 %Y |
| } |
| |
| define i17 @test3_apint(i17 %X) { |
| ; CHECK-LABEL: @test3_apint( |
| ; CHECK-NEXT: ret i17 -1 |
| ; |
| %Y = or i17 %X, -1 |
| ret i17 %Y |
| } |
| |
| ; Test the case where Integer BitWidth > 64 && BitWidth <= 1024. |
| ; If we have: ((V + N) & C1) | (V & C2) |
| ; .. and C2 = ~C1 and C2 is 0+1+ and (N & C2) == 0 |
| ; replace with V+N. |
| define i399 @test4_apint(i399 %V, i399 %M) { |
| ; CHECK-LABEL: @test4_apint( |
| ; CHECK-NEXT: [[N:%.*]] = and i399 [[M:%.*]], 18446742974197923840 |
| ; CHECK-NEXT: [[A:%.*]] = add i399 [[V:%.*]], [[N]] |
| ; CHECK-NEXT: ret i399 [[A]] |
| ; |
| %C1 = xor i399 274877906943, -1 ;; C2 = 274877906943 |
| %N = and i399 %M, 18446742974197923840 |
| %A = add i399 %V, %N |
| %B = and i399 %A, %C1 |
| %D = and i399 %V, 274877906943 |
| %R = or i399 %D, %B |
| ret i399 %R |
| } |
| |
| define i777 @test5_apint(i777 %X) { |
| ; CHECK-LABEL: @test5_apint( |
| ; CHECK-NEXT: ret i777 [[X:%.*]] |
| ; |
| %Y = or i777 %X, 0 |
| ret i777 %Y |
| } |
| |
| define i117 @test6_apint(i117 %X) { |
| ; CHECK-LABEL: @test6_apint( |
| ; CHECK-NEXT: ret i117 -1 |
| ; |
| %Y = or i117 %X, -1 |
| ret i117 %Y |
| } |
| |
| ; Test the case where integer BitWidth <= 64 && BitWidth % 2 != 0. |
| ; Vector version of test1_apint with the add commuted |
| ; If we have: ((V + N) & C1) | (V & C2) |
| ; .. and C2 = ~C1 and C2 is 0+1+ and (N & C2) == 0 |
| ; replace with V+N. |
| define <2 x i39> @test7_apint(<2 x i39> %V, <2 x i39> %M) { |
| ; CHECK-LABEL: @test7_apint( |
| ; CHECK-NEXT: [[N:%.*]] = and <2 x i39> [[M:%.*]], <i39 -274877906944, i39 -274877906944> |
| ; CHECK-NEXT: [[A:%.*]] = add <2 x i39> [[N]], [[V:%.*]] |
| ; CHECK-NEXT: ret <2 x i39> [[A]] |
| ; |
| %C1 = xor <2 x i39> <i39 274877906943, i39 274877906943>, <i39 -1, i39 -1> ;; C2 = 274877906943 |
| %N = and <2 x i39> %M, <i39 274877906944, i39 274877906944> |
| %A = add <2 x i39> %N, %V |
| %B = and <2 x i39> %A, %C1 |
| %D = and <2 x i39> %V, <i39 274877906943, i39 274877906943> |
| %R = or <2 x i39> %B, %D |
| ret <2 x i39> %R |
| } |
| |
| ; Test the case where Integer BitWidth > 64 && BitWidth <= 1024. |
| ; Vector version of test4_apint with the add and the or commuted |
| ; If we have: ((V + N) & C1) | (V & C2) |
| ; .. and C2 = ~C1 and C2 is 0+1+ and (N & C2) == 0 |
| ; replace with V+N. |
| define <2 x i399> @test8_apint(<2 x i399> %V, <2 x i399> %M) { |
| ; CHECK-LABEL: @test8_apint( |
| ; CHECK-NEXT: [[N:%.*]] = and <2 x i399> [[M:%.*]], <i399 18446742974197923840, i399 18446742974197923840> |
| ; CHECK-NEXT: [[A:%.*]] = add <2 x i399> [[N]], [[V:%.*]] |
| ; CHECK-NEXT: ret <2 x i399> [[A]] |
| ; |
| %C1 = xor <2 x i399> <i399 274877906943, i399 274877906943>, <i399 -1, i399 -1> ;; C2 = 274877906943 |
| %N = and <2 x i399> %M, <i399 18446742974197923840, i399 18446742974197923840> |
| %A = add <2 x i399> %N, %V |
| %B = and <2 x i399> %A, %C1 |
| %D = and <2 x i399> %V, <i399 274877906943, i399 274877906943> |
| %R = or <2 x i399> %D, %B |
| ret <2 x i399> %R |
| } |
| |
| ; (A & B) | A = A |
| |
| define i8 @or_and_common_op_commute0(i8 %a, i8 %b) { |
| ; CHECK-LABEL: @or_and_common_op_commute0( |
| ; CHECK-NEXT: ret i8 [[A:%.*]] |
| ; |
| %and = and i8 %a, %b |
| %or = or i8 %and, %a |
| ret i8 %or |
| } |
| |
| define <2 x i8> @or_and_common_op_commute1(<2 x i8> %a, <2 x i8> %b) { |
| ; CHECK-LABEL: @or_and_common_op_commute1( |
| ; CHECK-NEXT: ret <2 x i8> [[A:%.*]] |
| ; |
| %and = and <2 x i8> %b, %a |
| %or = or <2 x i8> %and, %a |
| ret <2 x i8> %or |
| } |
| |
| define i8 @or_and_common_op_commute2(i8 %a, i8 %b) { |
| ; CHECK-LABEL: @or_and_common_op_commute2( |
| ; CHECK-NEXT: ret i8 [[A:%.*]] |
| ; |
| %and = and i8 %a, %b |
| %or = or i8 %a, %and |
| ret i8 %or |
| } |
| |
| define <2 x i8> @or_and_common_op_commute3(<2 x i8> %a, <2 x i8> %b) { |
| ; CHECK-LABEL: @or_and_common_op_commute3( |
| ; CHECK-NEXT: ret <2 x i8> [[A:%.*]] |
| ; |
| %and = and <2 x i8> %b, %a |
| %or = or <2 x i8> %a, %and |
| ret <2 x i8> %or |
| } |
| |
| ; A | ~(A & B) = -1 |
| |
| define i1 @or_with_not_op_commute1(i1 %a, i1 %b) { |
| ; CHECK-LABEL: @or_with_not_op_commute1( |
| ; CHECK-NEXT: ret i1 true |
| ; |
| %ab = and i1 %a, %b |
| %not = xor i1 %ab, -1 |
| %r = or i1 %a, %not |
| ret i1 %r |
| } |
| |
| ; A | ~(B & A) = -1 |
| |
| define i8 @or_with_not_op_commute2(i8 %a, i8 %b) { |
| ; CHECK-LABEL: @or_with_not_op_commute2( |
| ; CHECK-NEXT: ret i8 -1 |
| ; |
| %ab = and i8 %b, %a |
| %not = xor i8 %ab, -1 |
| %r = or i8 %a, %not |
| ret i8 %r |
| } |
| |
| ; ~(A & B) | A = -1 |
| |
| define <3 x i17> @or_with_not_op_commute3(<3 x i17> %a, <3 x i17> %b) { |
| ; CHECK-LABEL: @or_with_not_op_commute3( |
| ; CHECK-NEXT: ret <3 x i17> <i17 -1, i17 -1, i17 -1> |
| ; |
| %ab = and <3 x i17> %a, %b |
| %not = xor <3 x i17> %ab, <i17 -1, i17 -1, i17 -1> |
| %r = or <3 x i17> %not, %a |
| ret <3 x i17> %r |
| } |
| |
| ; ~(B & A) | A = -1 |
| |
| define <2 x i1> @or_with_not_op_commute4(<2 x i1> %a, <2 x i1> %b) { |
| ; CHECK-LABEL: @or_with_not_op_commute4( |
| ; CHECK-NEXT: ret <2 x i1> <i1 true, i1 true> |
| ; |
| %ab = and <2 x i1> %b, %a |
| %not = xor <2 x i1> %ab, <i1 -1, i1 undef> |
| %r = or <2 x i1> %not, %a |
| ret <2 x i1> %r |
| } |
| |
| define i32 @poison(i32 %x) { |
| ; CHECK-LABEL: @poison( |
| ; CHECK-NEXT: ret i32 poison |
| ; |
| %v = or i32 %x, poison |
| ret i32 %v |
| } |
| |
| ; (~A & B) | ~(A | B) --> ~A |
| |
| define i4 @and_or_not_or_commute0(i4 %A, i4 %B) { |
| ; CHECK-LABEL: @and_or_not_or_commute0( |
| ; CHECK-NEXT: [[NOTA:%.*]] = xor i4 [[A:%.*]], -1 |
| ; CHECK-NEXT: ret i4 [[NOTA]] |
| ; |
| %nota = xor i4 %A, -1 |
| %and = and i4 %nota, %B |
| %or = or i4 %A, %B |
| %notab = xor i4 %or, -1 |
| %r = or i4 %and, %notab |
| ret i4 %r |
| } |
| |
| define i41 @and_or_not_or_commute1(i41 %A, i41 %B) { |
| ; CHECK-LABEL: @and_or_not_or_commute1( |
| ; CHECK-NEXT: [[NOTA:%.*]] = xor i41 [[A:%.*]], -1 |
| ; CHECK-NEXT: ret i41 [[NOTA]] |
| ; |
| %nota = xor i41 %A, -1 |
| %and = and i41 %B, %nota |
| %or = or i41 %A, %B |
| %notab = xor i41 %or, -1 |
| %r = or i41 %and, %notab |
| ret i41 %r |
| } |
| |
| define i8 @and_or_not_or_commute2(i8 %A, i8 %B) { |
| ; CHECK-LABEL: @and_or_not_or_commute2( |
| ; CHECK-NEXT: [[NOTA:%.*]] = xor i8 [[A:%.*]], -1 |
| ; CHECK-NEXT: ret i8 [[NOTA]] |
| ; |
| %nota = xor i8 %A, -1 |
| %and = and i8 %nota, %B |
| %or = or i8 %B, %A |
| %notab = xor i8 %or, -1 |
| %r = or i8 %and, %notab |
| ret i8 %r |
| } |
| |
| define <2 x i4> @and_or_not_or_commute3(<2 x i4> %A, <2 x i4> %B) { |
| ; CHECK-LABEL: @and_or_not_or_commute3( |
| ; CHECK-NEXT: [[NOTA:%.*]] = xor <2 x i4> [[A:%.*]], <i4 -1, i4 -1> |
| ; CHECK-NEXT: ret <2 x i4> [[NOTA]] |
| ; |
| %nota = xor <2 x i4> %A, <i4 -1, i4 -1> |
| %and = and <2 x i4> %B, %nota |
| %or = or <2 x i4> %B, %A |
| %notab = xor <2 x i4> %or, <i4 -1, i4 -1> |
| %r = or <2 x i4> %and, %notab |
| ret <2 x i4> %r |
| } |
| |
| define i4 @and_or_not_or_commute4(i4 %A, i4 %B) { |
| ; CHECK-LABEL: @and_or_not_or_commute4( |
| ; CHECK-NEXT: [[NOTA:%.*]] = xor i4 [[A:%.*]], -1 |
| ; CHECK-NEXT: ret i4 [[NOTA]] |
| ; |
| %nota = xor i4 %A, -1 |
| %and = and i4 %nota, %B |
| %or = or i4 %A, %B |
| %notab = xor i4 %or, -1 |
| %r = or i4 %notab, %and |
| ret i4 %r |
| } |
| |
| define i41 @and_or_not_or_commute5(i41 %A, i41 %B) { |
| ; CHECK-LABEL: @and_or_not_or_commute5( |
| ; CHECK-NEXT: [[NOTA:%.*]] = xor i41 [[A:%.*]], -1 |
| ; CHECK-NEXT: ret i41 [[NOTA]] |
| ; |
| %nota = xor i41 %A, -1 |
| %and = and i41 %B, %nota |
| %or = or i41 %A, %B |
| %notab = xor i41 %or, -1 |
| %r = or i41 %notab, %and |
| ret i41 %r |
| } |
| |
| define i8 @and_or_not_or_commute6(i8 %A, i8 %B) { |
| ; CHECK-LABEL: @and_or_not_or_commute6( |
| ; CHECK-NEXT: [[NOTA:%.*]] = xor i8 [[A:%.*]], -1 |
| ; CHECK-NEXT: ret i8 [[NOTA]] |
| ; |
| %nota = xor i8 %A, -1 |
| %and = and i8 %nota, %B |
| %or = or i8 %B, %A |
| %notab = xor i8 %or, -1 |
| %r = or i8 %notab, %and |
| ret i8 %r |
| } |
| |
| define <2 x i4> @and_or_not_or_commute7(<2 x i4> %A, <2 x i4> %B) { |
| ; CHECK-LABEL: @and_or_not_or_commute7( |
| ; CHECK-NEXT: [[NOTA:%.*]] = xor <2 x i4> [[A:%.*]], <i4 -1, i4 -1> |
| ; CHECK-NEXT: ret <2 x i4> [[NOTA]] |
| ; |
| %nota = xor <2 x i4> %A, <i4 -1, i4 -1> |
| %and = and <2 x i4> %B, %nota |
| %or = or <2 x i4> %B, %A |
| %notab = xor <2 x i4> %or, <i4 -1, i4 -1> |
| %r = or <2 x i4> %notab, %and |
| ret <2 x i4> %r |
| } |
| |
| ; (~A & B) | ~(A | B) --> ~A with logical and |
| define i1 @and_or_not_or_logical(i1 %A, i1 %B) { |
| ; CHECK-LABEL: @and_or_not_or_logical( |
| ; CHECK-NEXT: [[V:%.*]] = xor i1 [[A:%.*]], true |
| ; CHECK-NEXT: ret i1 [[V]] |
| ; |
| %V = xor i1 %A, true |
| %X = select i1 %V, i1 %B, i1 false |
| %W = or i1 %B, %A |
| %Y = xor i1 %W, true |
| %Z = or i1 %X, %Y |
| ret i1 %Z |
| } |
| |
| ; (~B & A) | ~(A | B) --> ~A with logical and |
| define i1 @and_or_not_or_logical_rev(i1 %A, i1 %B) { |
| ; CHECK-LABEL: @and_or_not_or_logical_rev( |
| ; CHECK-NEXT: [[V:%.*]] = xor i1 [[A:%.*]], true |
| ; CHECK-NEXT: ret i1 [[V]] |
| ; |
| %V = xor i1 %A, true |
| %X = select i1 %B, i1 %V, i1 false |
| %W = or i1 %B, %A |
| %Y = xor i1 %W, true |
| %Z = or i1 %X, %Y |
| ret i1 %Z |
| } |
| |
| ; (~A & B) | ~(A | B) --> ~A with logical And and logical Or |
| define i1 @and_or_not_logical_or_logical_rev(i1 %A, i1 %B) { |
| ; CHECK-LABEL: @and_or_not_logical_or_logical_rev( |
| ; CHECK-NEXT: [[V:%.*]] = xor i1 [[A:%.*]], true |
| ; CHECK-NEXT: ret i1 [[V]] |
| ; |
| %V = xor i1 %A, true |
| %X = select i1 %B, i1 %V, i1 false |
| %W = select i1 %B, i1 true, i1 %A |
| %Y = xor i1 %W, true |
| %Z = or i1 %X, %Y |
| ret i1 %Z |
| } |
| |
| ; negative test - It is not safe to propagate an undef element from the 'not' op. |
| |
| define <2 x i4> @and_or_not_or_commute7_undef_elt(<2 x i4> %A, <2 x i4> %B) { |
| ; CHECK-LABEL: @and_or_not_or_commute7_undef_elt( |
| ; CHECK-NEXT: [[NOTA:%.*]] = xor <2 x i4> [[A:%.*]], <i4 undef, i4 -1> |
| ; CHECK-NEXT: [[AND:%.*]] = and <2 x i4> [[B:%.*]], [[NOTA]] |
| ; CHECK-NEXT: [[OR:%.*]] = or <2 x i4> [[B]], [[A]] |
| ; CHECK-NEXT: [[NOTAB:%.*]] = xor <2 x i4> [[OR]], <i4 -1, i4 -1> |
| ; CHECK-NEXT: [[R:%.*]] = or <2 x i4> [[NOTAB]], [[AND]] |
| ; CHECK-NEXT: ret <2 x i4> [[R]] |
| ; |
| %nota = xor <2 x i4> %A, <i4 undef, i4 -1> |
| %and = and <2 x i4> %B, %nota |
| %or = or <2 x i4> %B, %A |
| %notab = xor <2 x i4> %or, <i4 -1, i4 -1> |
| %r = or <2 x i4> %notab, %and |
| ret <2 x i4> %r |
| } |
| |
| ; (A | B) | (A ^ B) --> A | B |
| |
| define i69 @or_or_xor(i69 %A, i69 %B) { |
| ; CHECK-LABEL: @or_or_xor( |
| ; CHECK-NEXT: [[I1:%.*]] = or i69 [[A:%.*]], [[B:%.*]] |
| ; CHECK-NEXT: ret i69 [[I1]] |
| ; |
| %i1 = or i69 %A, %B |
| %i2 = xor i69 %A, %B |
| %i3 = or i69 %i1, %i2 |
| ret i69 %i3 |
| } |
| |
| ; (B | A) | (A ^ B) --> B | A |
| |
| define i8 @or_or_xor_inner_or_commuted(i8 %A, i8 %B) { |
| ; CHECK-LABEL: @or_or_xor_inner_or_commuted( |
| ; CHECK-NEXT: [[I1:%.*]] = or i8 [[B:%.*]], [[A:%.*]] |
| ; CHECK-NEXT: ret i8 [[I1]] |
| ; |
| %i1 = or i8 %B, %A |
| %i2 = xor i8 %A, %B |
| %i3 = or i8 %i1, %i2 |
| ret i8 %i3 |
| } |
| |
| ; (A ^ B) | (A | B) --> A | B |
| |
| define <4 x i4> @or_or_xor_commuted(<4 x i4> %A, <4 x i4> %B) { |
| ; CHECK-LABEL: @or_or_xor_commuted( |
| ; CHECK-NEXT: [[I1:%.*]] = or <4 x i4> [[A:%.*]], [[B:%.*]] |
| ; CHECK-NEXT: ret <4 x i4> [[I1]] |
| ; |
| %i1 = or <4 x i4> %A, %B |
| %i2 = xor <4 x i4> %A, %B |
| %i3 = or <4 x i4> %i2, %i1 |
| ret <4 x i4> %i3 |
| } |
| |
| ; (A ^ B) | (B | A) --> B | A |
| |
| define i4 @or_or_xor_inner_or_outer_or_commuted(i4 %A, i4 %B) { |
| ; CHECK-LABEL: @or_or_xor_inner_or_outer_or_commuted( |
| ; CHECK-NEXT: [[I1:%.*]] = or i4 [[B:%.*]], [[A:%.*]] |
| ; CHECK-NEXT: ret i4 [[I1]] |
| ; |
| %i1 = or i4 %B, %A |
| %i2 = xor i4 %A, %B |
| %i3 = or i4 %i2, %i1 |
| ret i4 %i3 |
| } |
| |
| define i32 @shifted_all_ones(i32 %shamt) { |
| ; CHECK-LABEL: @shifted_all_ones( |
| ; CHECK-NEXT: ret i32 -1 |
| ; |
| %r = lshr i32 -1, %shamt |
| %s = sub i32 32, %shamt |
| %l = shl i32 -1, %s |
| %o = or i32 %r, %l |
| ret i32 %o |
| } |
| |
| ; Sub from less than bitwidth is ok (overlapping ones). |
| |
| define i32 @shifted_all_ones_commute(i32 %shamt) { |
| ; CHECK-LABEL: @shifted_all_ones_commute( |
| ; CHECK-NEXT: ret i32 -1 |
| ; |
| %r = lshr i32 -1, %shamt |
| %s = sub i32 31, %shamt |
| %l = shl i32 -1, %s |
| %o = or i32 %l, %r |
| ret i32 %o |
| } |
| |
| define <2 x i9> @shifted_all_ones_sub_on_lshr(<2 x i9> %shamt) { |
| ; CHECK-LABEL: @shifted_all_ones_sub_on_lshr( |
| ; CHECK-NEXT: ret <2 x i9> <i9 -1, i9 -1> |
| ; |
| %l = shl <2 x i9> <i9 -1, i9 -1>, %shamt |
| %s = sub <2 x i9> <i9 5, i9 5>, %shamt |
| %r = lshr <2 x i9> <i9 -1, i9 -1>, %s |
| %o = or <2 x i9> %l, %r |
| ret <2 x i9> %o |
| } |
| |
| define i8 @shifted_all_ones_sub_on_lshr_commute(i8 %shamt) { |
| ; CHECK-LABEL: @shifted_all_ones_sub_on_lshr_commute( |
| ; CHECK-NEXT: ret i8 -1 |
| ; |
| %l = shl i8 -1, %shamt |
| %s = sub i8 8, %shamt |
| %r = lshr i8 -1, %s |
| %o = or i8 %r, %l |
| ret i8 %o |
| } |
| |
| ; negative test - need -1 in general case |
| |
| define i32 @shifted_not_all_ones(i32 %shamt) { |
| ; CHECK-LABEL: @shifted_not_all_ones( |
| ; CHECK-NEXT: [[R:%.*]] = lshr i32 -2, [[SHAMT:%.*]] |
| ; CHECK-NEXT: [[S:%.*]] = sub i32 31, [[SHAMT]] |
| ; CHECK-NEXT: [[L:%.*]] = shl i32 -1, [[S]] |
| ; CHECK-NEXT: [[O:%.*]] = or i32 [[R]], [[L]] |
| ; CHECK-NEXT: ret i32 [[O]] |
| ; |
| %r = lshr i32 -2, %shamt |
| %s = sub i32 31, %shamt |
| %l = shl i32 -1, %s |
| %o = or i32 %r, %l |
| ret i32 %o |
| } |
| |
| ; negative test - opposite shift amount may be too big |
| |
| define i32 @shifted_all_ones_greater_than_bitwidth(i32 %shamt) { |
| ; CHECK-LABEL: @shifted_all_ones_greater_than_bitwidth( |
| ; CHECK-NEXT: [[R:%.*]] = lshr i32 -1, [[SHAMT:%.*]] |
| ; CHECK-NEXT: [[S:%.*]] = sub i32 33, [[SHAMT]] |
| ; CHECK-NEXT: [[L:%.*]] = shl i32 -1, [[S]] |
| ; CHECK-NEXT: [[O:%.*]] = or i32 [[R]], [[L]] |
| ; CHECK-NEXT: ret i32 [[O]] |
| ; |
| %r = lshr i32 -1, %shamt |
| %s = sub i32 33, %shamt |
| %l = shl i32 -1, %s |
| %o = or i32 %r, %l |
| ret i32 %o |
| } |
| |
| ; negative test - shift amount must be derived from same base |
| |
| define i32 @shifted_all_ones_not_same_amt(i32 %shamt, i32 %other) { |
| ; CHECK-LABEL: @shifted_all_ones_not_same_amt( |
| ; CHECK-NEXT: [[R:%.*]] = lshr i32 -1, [[SHAMT:%.*]] |
| ; CHECK-NEXT: [[S:%.*]] = sub i32 32, [[OTHER:%.*]] |
| ; CHECK-NEXT: [[L:%.*]] = shl i32 -1, [[S]] |
| ; CHECK-NEXT: [[O:%.*]] = or i32 [[R]], [[L]] |
| ; CHECK-NEXT: ret i32 [[O]] |
| ; |
| %r = lshr i32 -1, %shamt |
| %s = sub i32 32, %other |
| %l = shl i32 -1, %s |
| %o = or i32 %r, %l |
| ret i32 %o |
| } |
| |
| ; (A & B) | ~(A ^ B) --> ~(A ^ B) |
| |
| define i4 @or_nxor_and_commute0(i4 %a, i4 %b) { |
| ; CHECK-LABEL: @or_nxor_and_commute0( |
| ; CHECK-NEXT: [[XOR:%.*]] = xor i4 [[A:%.*]], [[B:%.*]] |
| ; CHECK-NEXT: [[NOT:%.*]] = xor i4 [[XOR]], -1 |
| ; CHECK-NEXT: ret i4 [[NOT]] |
| ; |
| %and = and i4 %a, %b |
| %xor = xor i4 %a, %b |
| %not = xor i4 %xor, -1 |
| %r = or i4 %and, %not |
| ret i4 %r |
| } |
| |
| define <2 x i4> @or_nxor_and_commute1(<2 x i4> %a, <2 x i4> %b) { |
| ; CHECK-LABEL: @or_nxor_and_commute1( |
| ; CHECK-NEXT: [[XOR:%.*]] = xor <2 x i4> [[A:%.*]], [[B:%.*]] |
| ; CHECK-NEXT: [[NOT:%.*]] = xor <2 x i4> [[XOR]], <i4 -1, i4 -1> |
| ; CHECK-NEXT: ret <2 x i4> [[NOT]] |
| ; |
| %and = and <2 x i4> %a, %b |
| %xor = xor <2 x i4> %a, %b |
| %not = xor <2 x i4> %xor, <i4 -1, i4 -1> |
| %r = or <2 x i4> %not, %and |
| ret <2 x i4> %r |
| } |
| |
| define i74 @or_nxor_and_commute2(i74 %a, i74 %b) { |
| ; CHECK-LABEL: @or_nxor_and_commute2( |
| ; CHECK-NEXT: [[XOR:%.*]] = xor i74 [[A:%.*]], [[B:%.*]] |
| ; CHECK-NEXT: [[NOT:%.*]] = xor i74 [[XOR]], -1 |
| ; CHECK-NEXT: ret i74 [[NOT]] |
| ; |
| %and = and i74 %b, %a |
| %xor = xor i74 %a, %b |
| %not = xor i74 %xor, -1 |
| %r = or i74 %and, %not |
| ret i74 %r |
| } |
| |
| define <2 x i4> @or_nxor_and_commute3(<2 x i4> %a, <2 x i4> %b) { |
| ; CHECK-LABEL: @or_nxor_and_commute3( |
| ; CHECK-NEXT: [[XOR:%.*]] = xor <2 x i4> [[A:%.*]], [[B:%.*]] |
| ; CHECK-NEXT: [[NOT:%.*]] = xor <2 x i4> [[XOR]], <i4 -1, i4 -1> |
| ; CHECK-NEXT: ret <2 x i4> [[NOT]] |
| ; |
| %and = and <2 x i4> %b, %a |
| %xor = xor <2 x i4> %a, %b |
| %not = xor <2 x i4> %xor, <i4 -1, i4 -1> |
| %r = or <2 x i4> %not, %and |
| ret <2 x i4> %r |
| } |
| |
| ; negative test - must have common operands |
| |
| define i4 @or_nxor_and_wrong_val1(i4 %a, i4 %b, i4 %c) { |
| ; CHECK-LABEL: @or_nxor_and_wrong_val1( |
| ; CHECK-NEXT: [[AND:%.*]] = and i4 [[A:%.*]], [[C:%.*]] |
| ; CHECK-NEXT: [[XOR:%.*]] = xor i4 [[A]], [[B:%.*]] |
| ; CHECK-NEXT: [[NOT:%.*]] = xor i4 [[XOR]], -1 |
| ; CHECK-NEXT: [[R:%.*]] = or i4 [[AND]], [[NOT]] |
| ; CHECK-NEXT: ret i4 [[R]] |
| ; |
| %and = and i4 %a, %c |
| %xor = xor i4 %a, %b |
| %not = xor i4 %xor, -1 |
| %r = or i4 %and, %not |
| ret i4 %r |
| } |
| |
| ; negative test - must have common operands |
| |
| define i4 @or_nxor_and_wrong_val2(i4 %a, i4 %b, i4 %c) { |
| ; CHECK-LABEL: @or_nxor_and_wrong_val2( |
| ; CHECK-NEXT: [[AND:%.*]] = and i4 [[C:%.*]], [[B:%.*]] |
| ; CHECK-NEXT: [[XOR:%.*]] = xor i4 [[A:%.*]], [[B]] |
| ; CHECK-NEXT: [[NOT:%.*]] = xor i4 [[XOR]], -1 |
| ; CHECK-NEXT: [[R:%.*]] = or i4 [[AND]], [[NOT]] |
| ; CHECK-NEXT: ret i4 [[R]] |
| ; |
| %and = and i4 %c, %b |
| %xor = xor i4 %a, %b |
| %not = xor i4 %xor, -1 |
| %r = or i4 %and, %not |
| ret i4 %r |
| } |
| |
| ; negative test - undef in 'not' is allowed |
| |
| define <2 x i4> @or_nxor_and_undef_elt(<2 x i4> %a, <2 x i4> %b) { |
| ; CHECK-LABEL: @or_nxor_and_undef_elt( |
| ; CHECK-NEXT: [[AND:%.*]] = and <2 x i4> [[B:%.*]], [[A:%.*]] |
| ; CHECK-NEXT: [[XOR:%.*]] = xor <2 x i4> [[A]], [[B]] |
| ; CHECK-NEXT: [[NOT:%.*]] = xor <2 x i4> [[XOR]], <i4 -1, i4 undef> |
| ; CHECK-NEXT: [[R:%.*]] = or <2 x i4> [[NOT]], [[AND]] |
| ; CHECK-NEXT: ret <2 x i4> [[R]] |
| ; |
| %and = and <2 x i4> %b, %a |
| %xor = xor <2 x i4> %a, %b |
| %not = xor <2 x i4> %xor, <i4 -1, i4 undef> |
| %r = or <2 x i4> %not, %and |
| ret <2 x i4> %r |
| } |
| |
| ; ~(A ^ B) | (A | B) --> -1 |
| |
| define i4 @or_nxor_or_commute0(i4 %a, i4 %b) { |
| ; CHECK-LABEL: @or_nxor_or_commute0( |
| ; CHECK-NEXT: ret i4 -1 |
| ; |
| %or = or i4 %a, %b |
| %xor = xor i4 %a, %b |
| %not = xor i4 %xor, -1 |
| %r = or i4 %not, %or |
| ret i4 %r |
| } |
| |
| define <2 x i4> @or_nxor_or_commute1(<2 x i4> %a, <2 x i4> %b) { |
| ; CHECK-LABEL: @or_nxor_or_commute1( |
| ; CHECK-NEXT: ret <2 x i4> <i4 -1, i4 -1> |
| ; |
| %or = or <2 x i4> %a, %b |
| %xor = xor <2 x i4> %a, %b |
| %not = xor <2 x i4> %xor, <i4 -1, i4 -1> |
| %r = or <2 x i4> %or, %not |
| ret <2 x i4> %r |
| } |
| |
| define i74 @or_nxor_or_commute2(i74 %a, i74 %b) { |
| ; CHECK-LABEL: @or_nxor_or_commute2( |
| ; CHECK-NEXT: ret i74 -1 |
| ; |
| %or = or i74 %b, %a |
| %xor = xor i74 %a, %b |
| %not = xor i74 %xor, -1 |
| %r = or i74 %not, %or |
| ret i74 %r |
| } |
| |
| define <2 x i4> @or_nxor_or_commute3(<2 x i4> %a, <2 x i4> %b) { |
| ; CHECK-LABEL: @or_nxor_or_commute3( |
| ; CHECK-NEXT: ret <2 x i4> <i4 -1, i4 -1> |
| ; |
| %or = or <2 x i4> %b, %a |
| %xor = xor <2 x i4> %a, %b |
| %not = xor <2 x i4> %xor, <i4 -1, i4 -1> |
| %r = or <2 x i4> %or, %not |
| ret <2 x i4> %r |
| } |
| |
| ; negative test - must have common operands |
| |
| define i4 @or_nxor_or_wrong_val1(i4 %a, i4 %b, i4 %c) { |
| ; CHECK-LABEL: @or_nxor_or_wrong_val1( |
| ; CHECK-NEXT: [[OR:%.*]] = or i4 [[A:%.*]], [[C:%.*]] |
| ; CHECK-NEXT: [[XOR:%.*]] = xor i4 [[A]], [[B:%.*]] |
| ; CHECK-NEXT: [[NOT:%.*]] = xor i4 [[XOR]], -1 |
| ; CHECK-NEXT: [[R:%.*]] = or i4 [[NOT]], [[OR]] |
| ; CHECK-NEXT: ret i4 [[R]] |
| ; |
| %or = or i4 %a, %c |
| %xor = xor i4 %a, %b |
| %not = xor i4 %xor, -1 |
| %r = or i4 %not, %or |
| ret i4 %r |
| } |
| |
| ; negative test - must have common operands |
| |
| define i4 @or_nxor_or_wrong_val2(i4 %a, i4 %b, i4 %c) { |
| ; CHECK-LABEL: @or_nxor_or_wrong_val2( |
| ; CHECK-NEXT: [[OR:%.*]] = or i4 [[C:%.*]], [[B:%.*]] |
| ; CHECK-NEXT: [[XOR:%.*]] = xor i4 [[A:%.*]], [[B]] |
| ; CHECK-NEXT: [[NOT:%.*]] = xor i4 [[XOR]], -1 |
| ; CHECK-NEXT: [[R:%.*]] = or i4 [[NOT]], [[OR]] |
| ; CHECK-NEXT: ret i4 [[R]] |
| ; |
| %or = or i4 %c, %b |
| %xor = xor i4 %a, %b |
| %not = xor i4 %xor, -1 |
| %r = or i4 %not, %or |
| ret i4 %r |
| } |
| |
| ; negative test - undef in 'not' is allowed |
| |
| define <2 x i4> @or_nxor_or_undef_elt(<2 x i4> %a, <2 x i4> %b) { |
| ; CHECK-LABEL: @or_nxor_or_undef_elt( |
| ; CHECK-NEXT: ret <2 x i4> <i4 -1, i4 -1> |
| ; |
| %or = or <2 x i4> %b, %a |
| %xor = xor <2 x i4> %a, %b |
| %not = xor <2 x i4> %xor, <i4 -1, i4 undef> |
| %r = or <2 x i4> %or, %not |
| ret <2 x i4> %r |
| } |
| |
| ; (A ^ B) | (~A | B) --> -1 |
| |
| define i4 @or_xor_not_op_or(i4 %a, i4 %b){ |
| ; CHECK-LABEL: @or_xor_not_op_or( |
| ; CHECK-NEXT: ret i4 -1 |
| ; |
| %xor = xor i4 %a, %b |
| %nota = xor i4 %a, -1 |
| %or = or i4 %nota, %b |
| %r = or i4 %xor, %or |
| ret i4 %r |
| } |
| |
| ; (A ^ B) | (B | ~A) --> -1 |
| |
| define i71 @or_xor_not_op_or_commute1(i71 %a, i71 %b){ |
| ; CHECK-LABEL: @or_xor_not_op_or_commute1( |
| ; CHECK-NEXT: ret i71 -1 |
| ; |
| %xor = xor i71 %a, %b |
| %nota = xor i71 %a, -1 |
| %or = or i71 %b, %nota |
| %r = or i71 %xor, %or |
| ret i71 %r |
| } |
| |
| ; (B ^ A) | (~A | B) --> -1 |
| |
| define i32 @or_xor_not_op_or_commute2(i32 %a, i32 %b){ |
| ; CHECK-LABEL: @or_xor_not_op_or_commute2( |
| ; CHECK-NEXT: ret i32 -1 |
| ; |
| %xor = xor i32 %b, %a |
| %nota = xor i32 %a, -1 |
| %or = or i32 %nota, %b |
| %r = or i32 %xor, %or |
| ret i32 %r |
| } |
| |
| ; (B ^ A) | (B | ~A) --> -1 |
| |
| define i32 @or_xor_not_op_or_commute3(i32 %a, i32 %b){ |
| ; CHECK-LABEL: @or_xor_not_op_or_commute3( |
| ; CHECK-NEXT: ret i32 -1 |
| ; |
| %xor = xor i32 %b, %a |
| %nota = xor i32 %a, -1 |
| %or = or i32 %b, %nota |
| %r = or i32 %xor, %or |
| ret i32 %r |
| } |
| |
| ; (~A | B) | (A ^ B) --> -1 |
| |
| define i32 @or_xor_not_op_or_commute4(i32 %a, i32 %b){ |
| ; CHECK-LABEL: @or_xor_not_op_or_commute4( |
| ; CHECK-NEXT: ret i32 -1 |
| ; |
| %xor = xor i32 %a, %b |
| %nota = xor i32 %a, -1 |
| %or = or i32 %nota, %b |
| %r = or i32 %or, %xor |
| ret i32 %r |
| } |
| |
| ; (B | ~A) | (A ^ B) --> -1 |
| |
| define i32 @or_xor_not_op_or_commute5(i32 %a, i32 %b){ |
| ; CHECK-LABEL: @or_xor_not_op_or_commute5( |
| ; CHECK-NEXT: ret i32 -1 |
| ; |
| %xor = xor i32 %a, %b |
| %nota = xor i32 %a, -1 |
| %or = or i32 %b, %nota |
| %r = or i32 %or, %xor |
| ret i32 %r |
| } |
| |
| ; (~A | B) | (B ^ A) --> -1 |
| |
| define i32 @or_xor_not_op_or_commute6(i32 %a, i32 %b){ |
| ; CHECK-LABEL: @or_xor_not_op_or_commute6( |
| ; CHECK-NEXT: ret i32 -1 |
| ; |
| %xor = xor i32 %b, %a |
| %nota = xor i32 %a, -1 |
| %or = or i32 %nota, %b |
| %r = or i32 %or, %xor |
| ret i32 %r |
| } |
| |
| ; (B | ~A) | (B ^ A) --> -1 |
| |
| define i32 @or_xor_not_op_or_commute7(i32 %a, i32 %b){ |
| ; CHECK-LABEL: @or_xor_not_op_or_commute7( |
| ; CHECK-NEXT: ret i32 -1 |
| ; |
| %xor = xor i32 %b, %a |
| %nota = xor i32 %a, -1 |
| %or = or i32 %b, %nota |
| %r = or i32 %or, %xor |
| ret i32 %r |
| } |
| |
| define <2 x i4> @or_xor_not_op_or_undef_elt(<2 x i4> %a, <2 x i4> %b) { |
| ; CHECK-LABEL: @or_xor_not_op_or_undef_elt( |
| ; CHECK-NEXT: ret <2 x i4> <i4 -1, i4 -1> |
| ; |
| %xor = xor <2 x i4> %a, %b |
| %nota = xor <2 x i4> %a, <i4 -1, i4 undef> |
| %or = or <2 x i4> %nota, %b |
| %r = or <2 x i4> %xor, %or |
| ret <2 x i4> %r |
| } |
| |
| ; negative test |
| |
| define i16 @or_xor_not_op_or_wrong_val(i16 %a, i16 %b, i16 %c) { |
| ; CHECK-LABEL: @or_xor_not_op_or_wrong_val( |
| ; CHECK-NEXT: [[XOR:%.*]] = xor i16 [[A:%.*]], [[C:%.*]] |
| ; CHECK-NEXT: [[NOTA:%.*]] = xor i16 [[A]], -1 |
| ; CHECK-NEXT: [[OR:%.*]] = or i16 [[NOTA]], [[B:%.*]] |
| ; CHECK-NEXT: [[R:%.*]] = or i16 [[XOR]], [[OR]] |
| ; CHECK-NEXT: ret i16 [[R]] |
| ; |
| %xor = xor i16 %a, %c |
| %nota = xor i16 %a, -1 |
| %or = or i16 %nota, %b |
| %r = or i16 %xor, %or |
| ret i16 %r |
| } |
| |
| ; ~(x & y) | (x ^ y) --> ~(x & y) |
| |
| define i4 @or_nand_xor(i4 %x, i4 %y) { |
| ; CHECK-LABEL: @or_nand_xor( |
| ; CHECK-NEXT: [[AND:%.*]] = and i4 [[X:%.*]], [[Y:%.*]] |
| ; CHECK-NEXT: [[NAND:%.*]] = xor i4 [[AND]], -1 |
| ; CHECK-NEXT: ret i4 [[NAND]] |
| ; |
| %and = and i4 %x, %y |
| %xor = xor i4 %x, %y |
| %nand = xor i4 %and, -1 |
| %or = or i4 %xor, %nand |
| ret i4 %or |
| } |
| |
| define <2 x i4> @or_nand_xor_commute1(<2 x i4> %x, <2 x i4> %y) { |
| ; CHECK-LABEL: @or_nand_xor_commute1( |
| ; CHECK-NEXT: [[AND:%.*]] = and <2 x i4> [[Y:%.*]], [[X:%.*]] |
| ; CHECK-NEXT: [[NAND:%.*]] = xor <2 x i4> [[AND]], <i4 -1, i4 -1> |
| ; CHECK-NEXT: ret <2 x i4> [[NAND]] |
| ; |
| %and = and <2 x i4> %y, %x |
| %xor = xor <2 x i4> %x, %y |
| %nand = xor <2 x i4> %and, <i4 -1, i4 -1> |
| %or = or <2 x i4> %xor, %nand |
| ret <2 x i4> %or |
| } |
| |
| define i71 @or_nand_xor_commute2(i71 %x, i71 %y) { |
| ; CHECK-LABEL: @or_nand_xor_commute2( |
| ; CHECK-NEXT: [[AND:%.*]] = and i71 [[X:%.*]], [[Y:%.*]] |
| ; CHECK-NEXT: [[NAND:%.*]] = xor i71 [[AND]], -1 |
| ; CHECK-NEXT: ret i71 [[NAND]] |
| ; |
| %and = and i71 %x, %y |
| %xor = xor i71 %x, %y |
| %nand = xor i71 %and, -1 |
| %or = or i71 %nand, %xor |
| ret i71 %or |
| } |
| |
| define i4 @or_nand_xor_commute3(i4 %x, i4 %y) { |
| ; CHECK-LABEL: @or_nand_xor_commute3( |
| ; CHECK-NEXT: [[AND:%.*]] = and i4 [[Y:%.*]], [[X:%.*]] |
| ; CHECK-NEXT: [[NAND:%.*]] = xor i4 [[AND]], -1 |
| ; CHECK-NEXT: ret i4 [[NAND]] |
| ; |
| %and = and i4 %y, %x |
| %xor = xor i4 %x, %y |
| %nand = xor i4 %and, -1 |
| %or = or i4 %nand, %xor |
| ret i4 %or |
| } |
| |
| ; negative test wrong operand |
| |
| define i4 @or_nand_xor_wrong_val(i4 %x, i4 %y, i4 %z) { |
| ; CHECK-LABEL: @or_nand_xor_wrong_val( |
| ; CHECK-NEXT: [[AND:%.*]] = and i4 [[X:%.*]], [[Y:%.*]] |
| ; CHECK-NEXT: [[XOR:%.*]] = xor i4 [[X]], [[Z:%.*]] |
| ; CHECK-NEXT: [[NAND:%.*]] = xor i4 [[AND]], -1 |
| ; CHECK-NEXT: [[OR:%.*]] = or i4 [[XOR]], [[NAND]] |
| ; CHECK-NEXT: ret i4 [[OR]] |
| ; |
| %and = and i4 %x, %y |
| %xor = xor i4 %x, %z |
| %nand = xor i4 %and, -1 |
| %or = or i4 %xor, %nand |
| ret i4 %or |
| } |
| |
| ; negative test - undef element in 'not' is not allowed |
| |
| define <2 x i4> @or_nand_xor_undef_elt(<2 x i4> %x, <2 x i4> %y) { |
| ; CHECK-LABEL: @or_nand_xor_undef_elt( |
| ; CHECK-NEXT: [[AND:%.*]] = and <2 x i4> [[Y:%.*]], [[X:%.*]] |
| ; CHECK-NEXT: [[XOR:%.*]] = xor <2 x i4> [[X]], [[Y]] |
| ; CHECK-NEXT: [[NAND:%.*]] = xor <2 x i4> [[AND]], <i4 undef, i4 -1> |
| ; CHECK-NEXT: [[OR:%.*]] = or <2 x i4> [[XOR]], [[NAND]] |
| ; CHECK-NEXT: ret <2 x i4> [[OR]] |
| ; |
| %and = and <2 x i4> %y, %x |
| %xor = xor <2 x i4> %x, %y |
| %nand = xor <2 x i4> %and, <i4 undef, i4 -1> |
| %or = or <2 x i4> %xor, %nand |
| ret <2 x i4> %or |
| } |
| |
| declare i32 @llvm.fshl.i32 (i32, i32, i32) |
| declare i32 @llvm.fshr.i32 (i32, i32, i32) |
| |
| define i32 @or_shl_fshl(i32 %x, i32 %y, i32 %s) { |
| ; CHECK-LABEL: @or_shl_fshl( |
| ; CHECK-NEXT: [[FUN:%.*]] = call i32 @llvm.fshl.i32(i32 [[Y:%.*]], i32 [[X:%.*]], i32 [[S:%.*]]) |
| ; CHECK-NEXT: ret i32 [[FUN]] |
| ; |
| %shy = shl i32 %y, %s |
| %fun = call i32 @llvm.fshl.i32(i32 %y, i32 %x, i32 %s) |
| %or = or i32 %fun, %shy |
| ret i32 %or |
| } |
| |
| define i32 @or_shl_fshl_commute(i32 %x, i32 %y, i32 %s) { |
| ; CHECK-LABEL: @or_shl_fshl_commute( |
| ; CHECK-NEXT: [[FUN:%.*]] = call i32 @llvm.fshl.i32(i32 [[Y:%.*]], i32 [[X:%.*]], i32 [[S:%.*]]) |
| ; CHECK-NEXT: ret i32 [[FUN]] |
| ; |
| %shy = shl i32 %y, %s |
| %fun = call i32 @llvm.fshl.i32(i32 %y, i32 %x, i32 %s) |
| %or = or i32 %shy, %fun |
| ret i32 %or |
| } |
| |
| ; negative test - fshl operands are not commutative |
| |
| define i32 @or_shl_fshl_wrong_order(i32 %x, i32 %y, i32 %s) { |
| ; CHECK-LABEL: @or_shl_fshl_wrong_order( |
| ; CHECK-NEXT: [[SHY:%.*]] = shl i32 [[Y:%.*]], [[S:%.*]] |
| ; CHECK-NEXT: [[FUN:%.*]] = call i32 @llvm.fshl.i32(i32 [[X:%.*]], i32 [[Y]], i32 [[S]]) |
| ; CHECK-NEXT: [[OR:%.*]] = or i32 [[FUN]], [[SHY]] |
| ; CHECK-NEXT: ret i32 [[OR]] |
| ; |
| %shy = shl i32 %y, %s |
| %fun = call i32 @llvm.fshl.i32(i32 %x, i32 %y, i32 %s) |
| %or = or i32 %fun, %shy |
| ret i32 %or |
| } |
| |
| define i32 @or_lshr_fshr(i32 %x, i32 %y, i32 %s) { |
| ; CHECK-LABEL: @or_lshr_fshr( |
| ; CHECK-NEXT: [[FUN:%.*]] = call i32 @llvm.fshr.i32(i32 [[X:%.*]], i32 [[Y:%.*]], i32 [[S:%.*]]) |
| ; CHECK-NEXT: ret i32 [[FUN]] |
| ; |
| %shy = lshr i32 %y, %s |
| %fun = call i32 @llvm.fshr.i32(i32 %x, i32 %y, i32 %s) |
| %or = or i32 %fun, %shy |
| ret i32 %or |
| } |
| |
| define i32 @or_lshr_fshr_commute(i32 %x, i32 %y, i32 %s) { |
| ; CHECK-LABEL: @or_lshr_fshr_commute( |
| ; CHECK-NEXT: [[FUN:%.*]] = call i32 @llvm.fshr.i32(i32 [[X:%.*]], i32 [[Y:%.*]], i32 [[S:%.*]]) |
| ; CHECK-NEXT: ret i32 [[FUN]] |
| ; |
| %shy = lshr i32 %y, %s |
| %fun = call i32 @llvm.fshr.i32(i32 %x, i32 %y, i32 %s) |
| %or = or i32 %shy, %fun |
| ret i32 %or |
| } |
| |
| ; negative test - fshr operands are not commutative |
| |
| define i32 @or_lshr_fshr_wrong_order(i32 %x, i32 %y, i32 %s) { |
| ; CHECK-LABEL: @or_lshr_fshr_wrong_order( |
| ; CHECK-NEXT: [[SHY:%.*]] = lshr i32 [[Y:%.*]], [[S:%.*]] |
| ; CHECK-NEXT: [[FUN:%.*]] = call i32 @llvm.fshr.i32(i32 [[Y]], i32 [[X:%.*]], i32 [[S]]) |
| ; CHECK-NEXT: [[OR:%.*]] = or i32 [[FUN]], [[SHY]] |
| ; CHECK-NEXT: ret i32 [[OR]] |
| ; |
| %shy = lshr i32 %y, %s |
| %fun = call i32 @llvm.fshr.i32(i32 %y, i32 %x, i32 %s) |
| %or = or i32 %fun, %shy |
| ret i32 %or |
| } |