Andrea Di Biagio | 28f46d9 | 2014-03-18 17:12:59 +0000 | [diff] [blame] | 1 | ; RUN: llc < %s -mtriple=x86_64-unknown-linux-gnu -mcpu=corei7 | FileCheck %s |
| 2 | |
| 3 | ; Verify that the DAGCombiner correctly folds according to the following rules: |
| 4 | |
| 5 | ; fold (AND (shuf (A, C), shuf (B, C)) -> shuf (AND (A, B), C) |
| 6 | ; fold (OR (shuf (A, C), shuf (B, C)) -> shuf (OR (A, B), C) |
| 7 | ; fold (XOR (shuf (A, C), shuf (B, C)) -> shuf (XOR (A, B), V_0) |
| 8 | |
| 9 | ; fold (AND (shuf (C, A), shuf (C, B)) -> shuf (C, AND (A, B)) |
| 10 | ; fold (OR (shuf (C, A), shuf (C, B)) -> shuf (C, OR (A, B)) |
| 11 | ; fold (XOR (shuf (C, A), shuf (C, B)) -> shuf (V_0, XOR (A, B)) |
| 12 | |
| 13 | |
| 14 | |
| 15 | define <4 x i32> @test1(<4 x i32> %a, <4 x i32> %b, <4 x i32> %c) { |
| 16 | %shuf1 = shufflevector <4 x i32> %a, <4 x i32> %c, <4 x i32><i32 0, i32 2, i32 1, i32 3> |
| 17 | %shuf2 = shufflevector <4 x i32> %b, <4 x i32> %c, <4 x i32><i32 0, i32 2, i32 1, i32 3> |
| 18 | %and = and <4 x i32> %shuf1, %shuf2 |
| 19 | ret <4 x i32> %and |
| 20 | } |
| 21 | ; CHECK-LABEL: test1 |
| 22 | ; CHECK-NOT: pshufd |
| 23 | ; CHECK: pand |
| 24 | ; CHECK-NEXT: pshufd |
| 25 | ; CHECK-NEXT: ret |
| 26 | |
| 27 | |
| 28 | define <4 x i32> @test2(<4 x i32> %a, <4 x i32> %b, <4 x i32> %c) { |
| 29 | %shuf1 = shufflevector <4 x i32> %a, <4 x i32> %c, <4 x i32><i32 0, i32 2, i32 1, i32 3> |
| 30 | %shuf2 = shufflevector <4 x i32> %b, <4 x i32> %c, <4 x i32><i32 0, i32 2, i32 1, i32 3> |
| 31 | %or = or <4 x i32> %shuf1, %shuf2 |
| 32 | ret <4 x i32> %or |
| 33 | } |
| 34 | ; CHECK-LABEL: test2 |
| 35 | ; CHECK-NOT: pshufd |
| 36 | ; CHECK: por |
| 37 | ; CHECK-NEXT: pshufd |
| 38 | ; CHECK-NEXT: ret |
| 39 | |
| 40 | |
| 41 | define <4 x i32> @test3(<4 x i32> %a, <4 x i32> %b, <4 x i32> %c) { |
| 42 | %shuf1 = shufflevector <4 x i32> %a, <4 x i32> %c, <4 x i32><i32 0, i32 2, i32 1, i32 3> |
| 43 | %shuf2 = shufflevector <4 x i32> %b, <4 x i32> %c, <4 x i32><i32 0, i32 2, i32 1, i32 3> |
| 44 | %xor = xor <4 x i32> %shuf1, %shuf2 |
| 45 | ret <4 x i32> %xor |
| 46 | } |
| 47 | ; CHECK-LABEL: test3 |
| 48 | ; CHECK-NOT: pshufd |
| 49 | ; CHECK: pxor |
| 50 | ; CHECK-NEXT: pshufd |
| 51 | ; CHECK-NEXT: ret |
| 52 | |
| 53 | |
| 54 | define <4 x i32> @test4(<4 x i32> %a, <4 x i32> %b, <4 x i32> %c) { |
| 55 | %shuf1 = shufflevector <4 x i32> %c, <4 x i32> %a, <4 x i32><i32 4, i32 6, i32 5, i32 7> |
| 56 | %shuf2 = shufflevector <4 x i32> %c, <4 x i32> %b, <4 x i32><i32 4, i32 6, i32 5, i32 7> |
| 57 | %and = and <4 x i32> %shuf1, %shuf2 |
| 58 | ret <4 x i32> %and |
| 59 | } |
| 60 | ; CHECK-LABEL: test4 |
| 61 | ; CHECK-NOT: pshufd |
| 62 | ; CHECK: pand |
| 63 | ; CHECK-NEXT: pshufd |
| 64 | ; CHECK-NEXT: ret |
| 65 | |
| 66 | |
| 67 | define <4 x i32> @test5(<4 x i32> %a, <4 x i32> %b, <4 x i32> %c) { |
| 68 | %shuf1 = shufflevector <4 x i32> %c, <4 x i32> %a, <4 x i32><i32 4, i32 6, i32 5, i32 7> |
| 69 | %shuf2 = shufflevector <4 x i32> %c, <4 x i32> %b, <4 x i32><i32 4, i32 6, i32 5, i32 7> |
| 70 | %or = or <4 x i32> %shuf1, %shuf2 |
| 71 | ret <4 x i32> %or |
| 72 | } |
| 73 | ; CHECK-LABEL: test5 |
| 74 | ; CHECK-NOT: pshufd |
| 75 | ; CHECK: por |
| 76 | ; CHECK-NEXT: pshufd |
| 77 | ; CHECK-NEXT: ret |
| 78 | |
| 79 | |
| 80 | define <4 x i32> @test6(<4 x i32> %a, <4 x i32> %b, <4 x i32> %c) { |
| 81 | %shuf1 = shufflevector <4 x i32> %c, <4 x i32> %a, <4 x i32><i32 4, i32 6, i32 5, i32 7> |
| 82 | %shuf2 = shufflevector <4 x i32> %c, <4 x i32> %b, <4 x i32><i32 4, i32 6, i32 5, i32 7> |
| 83 | %xor = xor <4 x i32> %shuf1, %shuf2 |
| 84 | ret <4 x i32> %xor |
| 85 | } |
| 86 | ; CHECK-LABEL: test6 |
| 87 | ; CHECK-NOT: pshufd |
| 88 | ; CHECK: pxor |
| 89 | ; CHECK-NEXT: pshufd |
| 90 | ; CHECK-NEXT: ret |
| 91 | |
| 92 | |
| 93 | ; Verify that DAGCombiner moves the shuffle after the xor/and/or even if shuffles |
| 94 | ; are not performing a swizzle operations. |
| 95 | |
| 96 | define <4 x i32> @test1b(<4 x i32> %a, <4 x i32> %b, <4 x i32> %c) { |
| 97 | %shuf1 = shufflevector <4 x i32> %a, <4 x i32> %c, <4 x i32><i32 0, i32 5, i32 2, i32 7> |
| 98 | %shuf2 = shufflevector <4 x i32> %b, <4 x i32> %c, <4 x i32><i32 0, i32 5, i32 2, i32 7> |
| 99 | %and = and <4 x i32> %shuf1, %shuf2 |
| 100 | ret <4 x i32> %and |
| 101 | } |
| 102 | ; CHECK-LABEL: test1b |
| 103 | ; CHECK-NOT: blendps |
| 104 | ; CHECK: andps |
| 105 | ; CHECK-NEXT: blendps |
| 106 | ; CHECK-NEXT: ret |
| 107 | |
| 108 | |
| 109 | define <4 x i32> @test2b(<4 x i32> %a, <4 x i32> %b, <4 x i32> %c) { |
| 110 | %shuf1 = shufflevector <4 x i32> %a, <4 x i32> %c, <4 x i32><i32 0, i32 5, i32 2, i32 7> |
| 111 | %shuf2 = shufflevector <4 x i32> %b, <4 x i32> %c, <4 x i32><i32 0, i32 5, i32 2, i32 7> |
| 112 | %or = or <4 x i32> %shuf1, %shuf2 |
| 113 | ret <4 x i32> %or |
| 114 | } |
| 115 | ; CHECK-LABEL: test2b |
| 116 | ; CHECK-NOT: blendps |
| 117 | ; CHECK: orps |
| 118 | ; CHECK-NEXT: blendps |
| 119 | ; CHECK-NEXT: ret |
| 120 | |
| 121 | |
| 122 | define <4 x i32> @test3b(<4 x i32> %a, <4 x i32> %b, <4 x i32> %c) { |
| 123 | %shuf1 = shufflevector <4 x i32> %a, <4 x i32> %c, <4 x i32><i32 0, i32 5, i32 2, i32 7> |
| 124 | %shuf2 = shufflevector <4 x i32> %b, <4 x i32> %c, <4 x i32><i32 0, i32 5, i32 2, i32 7> |
| 125 | %xor = xor <4 x i32> %shuf1, %shuf2 |
| 126 | ret <4 x i32> %xor |
| 127 | } |
| 128 | ; CHECK-LABEL: test3b |
| 129 | ; CHECK-NOT: blendps |
| 130 | ; CHECK: xorps |
| 131 | ; CHECK-NEXT: xorps |
| 132 | ; CHECK-NEXT: blendps |
| 133 | ; CHECK-NEXT: ret |
| 134 | |
| 135 | |
| 136 | define <4 x i32> @test4b(<4 x i32> %a, <4 x i32> %b, <4 x i32> %c) { |
| 137 | %shuf1 = shufflevector <4 x i32> %c, <4 x i32> %a, <4 x i32><i32 0, i32 5, i32 2, i32 7> |
| 138 | %shuf2 = shufflevector <4 x i32> %c, <4 x i32> %b, <4 x i32><i32 0, i32 5, i32 2, i32 7> |
| 139 | %and = and <4 x i32> %shuf1, %shuf2 |
| 140 | ret <4 x i32> %and |
| 141 | } |
| 142 | ; CHECK-LABEL: test4b |
| 143 | ; CHECK-NOT: blendps |
| 144 | ; CHECK: andps |
| 145 | ; CHECK-NEXT: blendps |
| 146 | ; CHECK: ret |
| 147 | |
| 148 | |
| 149 | define <4 x i32> @test5b(<4 x i32> %a, <4 x i32> %b, <4 x i32> %c) { |
| 150 | %shuf1 = shufflevector <4 x i32> %c, <4 x i32> %a, <4 x i32><i32 0, i32 5, i32 2, i32 7> |
| 151 | %shuf2 = shufflevector <4 x i32> %c, <4 x i32> %b, <4 x i32><i32 0, i32 5, i32 2, i32 7> |
| 152 | %or = or <4 x i32> %shuf1, %shuf2 |
| 153 | ret <4 x i32> %or |
| 154 | } |
| 155 | ; CHECK-LABEL: test5b |
| 156 | ; CHECK-NOT: blendps |
| 157 | ; CHECK: orps |
| 158 | ; CHECK-NEXT: blendps |
| 159 | ; CHECK: ret |
| 160 | |
| 161 | |
| 162 | define <4 x i32> @test6b(<4 x i32> %a, <4 x i32> %b, <4 x i32> %c) { |
| 163 | %shuf1 = shufflevector <4 x i32> %c, <4 x i32> %a, <4 x i32><i32 0, i32 5, i32 2, i32 7> |
| 164 | %shuf2 = shufflevector <4 x i32> %c, <4 x i32> %b, <4 x i32><i32 0, i32 5, i32 2, i32 7> |
| 165 | %xor = xor <4 x i32> %shuf1, %shuf2 |
| 166 | ret <4 x i32> %xor |
| 167 | } |
| 168 | ; CHECK-LABEL: test6b |
| 169 | ; CHECK-NOT: blendps |
| 170 | ; CHECK: xorps |
| 171 | ; CHECK-NEXT: xorps |
| 172 | ; CHECK-NEXT: blendps |
| 173 | ; CHECK: ret |
| 174 | |
| 175 | define <4 x i32> @test1c(<4 x i32> %a, <4 x i32> %b, <4 x i32> %c) { |
| 176 | %shuf1 = shufflevector <4 x i32> %a, <4 x i32> %c, <4 x i32><i32 0, i32 2, i32 5, i32 7> |
| 177 | %shuf2 = shufflevector <4 x i32> %b, <4 x i32> %c, <4 x i32><i32 0, i32 2, i32 5, i32 7> |
| 178 | %and = and <4 x i32> %shuf1, %shuf2 |
| 179 | ret <4 x i32> %and |
| 180 | } |
| 181 | ; CHECK-LABEL: test1c |
| 182 | ; CHECK-NOT: shufps |
| 183 | ; CHECK: andps |
| 184 | ; CHECK-NEXT: shufps |
| 185 | ; CHECK-NEXT: ret |
| 186 | |
| 187 | |
| 188 | define <4 x i32> @test2c(<4 x i32> %a, <4 x i32> %b, <4 x i32> %c) { |
| 189 | %shuf1 = shufflevector <4 x i32> %a, <4 x i32> %c, <4 x i32><i32 0, i32 2, i32 5, i32 7> |
| 190 | %shuf2 = shufflevector <4 x i32> %b, <4 x i32> %c, <4 x i32><i32 0, i32 2, i32 5, i32 7> |
| 191 | %or = or <4 x i32> %shuf1, %shuf2 |
| 192 | ret <4 x i32> %or |
| 193 | } |
| 194 | ; CHECK-LABEL: test2c |
| 195 | ; CHECK-NOT: shufps |
| 196 | ; CHECK: orps |
| 197 | ; CHECK-NEXT: shufps |
| 198 | ; CHECK-NEXT: ret |
| 199 | |
| 200 | |
| 201 | define <4 x i32> @test3c(<4 x i32> %a, <4 x i32> %b, <4 x i32> %c) { |
| 202 | %shuf1 = shufflevector <4 x i32> %a, <4 x i32> %c, <4 x i32><i32 0, i32 2, i32 5, i32 7> |
| 203 | %shuf2 = shufflevector <4 x i32> %b, <4 x i32> %c, <4 x i32><i32 0, i32 2, i32 5, i32 7> |
| 204 | %xor = xor <4 x i32> %shuf1, %shuf2 |
| 205 | ret <4 x i32> %xor |
| 206 | } |
| 207 | ; CHECK-LABEL: test3c |
| 208 | ; CHECK-NOT: shufps |
| 209 | ; CHECK: xorps |
| 210 | ; CHECK-NEXT: xorps |
| 211 | ; CHECK-NEXT: shufps |
| 212 | ; CHECK-NEXT: ret |
| 213 | |
| 214 | |
| 215 | define <4 x i32> @test4c(<4 x i32> %a, <4 x i32> %b, <4 x i32> %c) { |
| 216 | %shuf1 = shufflevector <4 x i32> %c, <4 x i32> %a, <4 x i32><i32 0, i32 2, i32 5, i32 7> |
| 217 | %shuf2 = shufflevector <4 x i32> %c, <4 x i32> %b, <4 x i32><i32 0, i32 2, i32 5, i32 7> |
| 218 | %and = and <4 x i32> %shuf1, %shuf2 |
| 219 | ret <4 x i32> %and |
| 220 | } |
| 221 | ; CHECK-LABEL: test4c |
| 222 | ; CHECK-NOT: shufps |
| 223 | ; CHECK: andps |
| 224 | ; CHECK-NEXT: shufps |
| 225 | ; CHECK: ret |
| 226 | |
| 227 | |
| 228 | define <4 x i32> @test5c(<4 x i32> %a, <4 x i32> %b, <4 x i32> %c) { |
| 229 | %shuf1 = shufflevector <4 x i32> %c, <4 x i32> %a, <4 x i32><i32 0, i32 2, i32 5, i32 7> |
| 230 | %shuf2 = shufflevector <4 x i32> %c, <4 x i32> %b, <4 x i32><i32 0, i32 2, i32 5, i32 7> |
| 231 | %or = or <4 x i32> %shuf1, %shuf2 |
| 232 | ret <4 x i32> %or |
| 233 | } |
| 234 | ; CHECK-LABEL: test5c |
| 235 | ; CHECK-NOT: shufps |
| 236 | ; CHECK: orps |
| 237 | ; CHECK-NEXT: shufps |
| 238 | ; CHECK: ret |
| 239 | |
| 240 | |
| 241 | define <4 x i32> @test6c(<4 x i32> %a, <4 x i32> %b, <4 x i32> %c) { |
| 242 | %shuf1 = shufflevector <4 x i32> %c, <4 x i32> %a, <4 x i32><i32 0, i32 2, i32 5, i32 7> |
| 243 | %shuf2 = shufflevector <4 x i32> %c, <4 x i32> %b, <4 x i32><i32 0, i32 2, i32 5, i32 7> |
| 244 | %xor = xor <4 x i32> %shuf1, %shuf2 |
| 245 | ret <4 x i32> %xor |
| 246 | } |
| 247 | ; CHECK-LABEL: test6c |
| 248 | ; CHECK-NOT: shufps |
| 249 | ; CHECK: xorps |
| 250 | ; CHECK-NEXT: xorps |
| 251 | ; CHECK-NEXT: shufps |
| 252 | ; CHECK: ret |
| 253 | |