David Majnemer | c6a5e1d | 2014-11-27 06:32:46 +0000 | [diff] [blame] | 1 | ; RUN: opt < %s -instsimplify -S | FileCheck %s |
| 2 | |
| 3 | define i32 @test1(i32 %x) { |
| 4 | %and = and i32 %x, 1 |
| 5 | %cmp = icmp eq i32 %and, 0 |
| 6 | %and1 = and i32 %x, -2 |
| 7 | %and1.x = select i1 %cmp, i32 %and1, i32 %x |
| 8 | ret i32 %and1.x |
| 9 | ; CHECK-LABEL: @test1( |
| 10 | ; CHECK: ret i32 %x |
| 11 | } |
| 12 | |
| 13 | define i32 @test2(i32 %x) { |
| 14 | %and = and i32 %x, 1 |
| 15 | %cmp = icmp ne i32 %and, 0 |
| 16 | %and1 = and i32 %x, -2 |
| 17 | %and1.x = select i1 %cmp, i32 %x, i32 %and1 |
| 18 | ret i32 %and1.x |
| 19 | ; CHECK-LABEL: @test2( |
| 20 | ; CHECK: ret i32 %x |
| 21 | } |
| 22 | |
| 23 | define i32 @test3(i32 %x) { |
| 24 | %and = and i32 %x, 1 |
| 25 | %cmp = icmp ne i32 %and, 0 |
| 26 | %and1 = and i32 %x, -2 |
| 27 | %and1.x = select i1 %cmp, i32 %and1, i32 %x |
| 28 | ret i32 %and1.x |
| 29 | ; CHECK-LABEL: @test3( |
| 30 | ; CHECK: %[[and:.*]] = and i32 %x, -2 |
| 31 | ; CHECK: ret i32 %[[and]] |
| 32 | } |
| 33 | |
David Majnemer | 0b6a0b0 | 2014-12-20 03:04:38 +0000 | [diff] [blame] | 34 | define i32 @test4(i32 %X) { |
| 35 | %cmp = icmp slt i32 %X, 0 |
| 36 | %or = or i32 %X, -2147483648 |
| 37 | %cond = select i1 %cmp, i32 %X, i32 %or |
| 38 | ret i32 %cond |
| 39 | ; CHECK-LABEL: @test4 |
| 40 | ; CHECK: %[[or:.*]] = or i32 %X, -2147483648 |
| 41 | ; CHECK: ret i32 %[[or]] |
| 42 | } |
| 43 | |
| 44 | define i32 @test5(i32 %X) { |
| 45 | %cmp = icmp slt i32 %X, 0 |
| 46 | %or = or i32 %X, -2147483648 |
| 47 | %cond = select i1 %cmp, i32 %or, i32 %X |
| 48 | ret i32 %cond |
| 49 | ; CHECK-LABEL: @test5 |
| 50 | ; CHECK: ret i32 %X |
| 51 | } |
| 52 | |
| 53 | define i32 @test6(i32 %X) { |
| 54 | %cmp = icmp slt i32 %X, 0 |
| 55 | %and = and i32 %X, 2147483647 |
| 56 | %cond = select i1 %cmp, i32 %and, i32 %X |
| 57 | ret i32 %cond |
| 58 | ; CHECK-LABEL: @test6 |
| 59 | ; CHECK: %[[and:.*]] = and i32 %X, 2147483647 |
| 60 | ; CHECK: ret i32 %[[and]] |
| 61 | } |
| 62 | |
| 63 | define i32 @test7(i32 %X) { |
| 64 | %cmp = icmp slt i32 %X, 0 |
| 65 | %and = and i32 %X, 2147483647 |
| 66 | %cond = select i1 %cmp, i32 %X, i32 %and |
| 67 | ret i32 %cond |
| 68 | ; CHECK-LABEL: @test7 |
| 69 | ; CHECK: ret i32 %X |
| 70 | } |
| 71 | |
| 72 | define i32 @test8(i32 %X) { |
| 73 | %cmp = icmp sgt i32 %X, -1 |
| 74 | %or = or i32 %X, -2147483648 |
| 75 | %cond = select i1 %cmp, i32 %X, i32 %or |
| 76 | ret i32 %cond |
| 77 | ; CHECK-LABEL: @test8 |
| 78 | ; CHECK: ret i32 %X |
| 79 | } |
| 80 | |
| 81 | define i32 @test9(i32 %X) { |
| 82 | %cmp = icmp sgt i32 %X, -1 |
| 83 | %or = or i32 %X, -2147483648 |
| 84 | %cond = select i1 %cmp, i32 %or, i32 %X |
| 85 | ret i32 %cond |
| 86 | ; CHECK-LABEL: @test9 |
| 87 | ; CHECK: %[[or:.*]] = or i32 %X, -2147483648 |
| 88 | ; CHECK: ret i32 %[[or]] |
| 89 | } |
| 90 | |
| 91 | define i32 @test10(i32 %X) { |
| 92 | %cmp = icmp sgt i32 %X, -1 |
| 93 | %and = and i32 %X, 2147483647 |
| 94 | %cond = select i1 %cmp, i32 %and, i32 %X |
| 95 | ret i32 %cond |
| 96 | ; CHECK-LABEL: @test10 |
| 97 | ; CHECK: ret i32 %X |
| 98 | } |
| 99 | |
| 100 | define i32 @test11(i32 %X) { |
| 101 | %cmp = icmp sgt i32 %X, -1 |
| 102 | %and = and i32 %X, 2147483647 |
| 103 | %cond = select i1 %cmp, i32 %X, i32 %and |
| 104 | ret i32 %cond |
| 105 | ; CHECK-LABEL: @test11 |
| 106 | ; CHECK: %[[and:.*]] = and i32 %X, 2147483647 |
| 107 | ; CHECK: ret i32 %[[and]] |
| 108 | } |
| 109 | |
David Majnemer | c6a5e1d | 2014-11-27 06:32:46 +0000 | [diff] [blame] | 110 | ; CHECK-LABEL: @select_icmp_and_8_eq_0_or_8( |
| 111 | ; CHECK-NEXT: [[OR:%[a-z0-9]+]] = or i32 %x, 8 |
| 112 | ; CHECK-NEXT: ret i32 [[OR]] |
| 113 | define i32 @select_icmp_and_8_eq_0_or_8(i32 %x) { |
| 114 | %and = and i32 %x, 8 |
| 115 | %cmp = icmp eq i32 %and, 0 |
| 116 | %or = or i32 %x, 8 |
| 117 | %or.x = select i1 %cmp, i32 %or, i32 %x |
| 118 | ret i32 %or.x |
| 119 | } |
| 120 | |
| 121 | ; CHECK-LABEL: @select_icmp_and_8_ne_0_and_not_8( |
| 122 | ; CHECK-NEXT: [[AND:%[a-z0-9]+]] = and i32 %x, -9 |
| 123 | ; CHECK-NEXT: ret i32 [[AND]] |
| 124 | define i32 @select_icmp_and_8_ne_0_and_not_8(i32 %x) { |
| 125 | %and = and i32 %x, 8 |
| 126 | %cmp = icmp eq i32 %and, 0 |
| 127 | %and1 = and i32 %x, -9 |
| 128 | %x.and1 = select i1 %cmp, i32 %x, i32 %and1 |
| 129 | ret i32 %x.and1 |
| 130 | } |
| 131 | |
| 132 | ; CHECK-LABEL: @select_icmp_and_8_eq_0_and_not_8( |
| 133 | ; CHECK-NEXT: ret i32 %x |
| 134 | define i32 @select_icmp_and_8_eq_0_and_not_8(i32 %x) { |
| 135 | %and = and i32 %x, 8 |
| 136 | %cmp = icmp eq i32 %and, 0 |
| 137 | %and1 = and i32 %x, -9 |
| 138 | %and1.x = select i1 %cmp, i32 %and1, i32 %x |
| 139 | ret i32 %and1.x |
| 140 | } |
| 141 | |
| 142 | ; CHECK-LABEL: @select_icmp_x_and_8_eq_0_y_and_not_8( |
| 143 | ; CHECK: select i1 %cmp, i64 %y, i64 %and1 |
| 144 | define i64 @select_icmp_x_and_8_eq_0_y_and_not_8(i32 %x, i64 %y) { |
| 145 | %and = and i32 %x, 8 |
| 146 | %cmp = icmp eq i32 %and, 0 |
| 147 | %and1 = and i64 %y, -9 |
| 148 | %y.and1 = select i1 %cmp, i64 %y, i64 %and1 |
| 149 | ret i64 %y.and1 |
| 150 | } |
| 151 | |
| 152 | ; CHECK-LABEL: @select_icmp_x_and_8_ne_0_y_and_not_8( |
| 153 | ; CHECK: select i1 %cmp, i64 %and1, i64 %y |
| 154 | define i64 @select_icmp_x_and_8_ne_0_y_and_not_8(i32 %x, i64 %y) { |
| 155 | %and = and i32 %x, 8 |
| 156 | %cmp = icmp eq i32 %and, 0 |
| 157 | %and1 = and i64 %y, -9 |
| 158 | %and1.y = select i1 %cmp, i64 %and1, i64 %y |
| 159 | ret i64 %and1.y |
| 160 | } |
| 161 | |