1 ; RUN: opt -S -slp-vectorizer -slp-threshold=-10000 < %s | FileCheck %s 2 ; RUN: opt -S -slp-vectorizer -slp-threshold=0 < %s | FileCheck %s -check-prefix=ZEROTHRESH 3 target datalayout = "e-p:64:64:64-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-n8:16:32:64-S128" 4 5 target triple = "x86_64-apple-macosx10.8.0" 6 7 define <4 x float> @simple_select(<4 x float> %a, <4 x float> %b, <4 x i32> %c) #0 { 8 ; CHECK-LABEL: @simple_select( 9 ; CHECK-NEXT: %1 = icmp ne <4 x i32> %c, zeroinitializer 10 ; CHECK-NEXT: select <4 x i1> %1, <4 x float> %a, <4 x float> %b 11 %c0 = extractelement <4 x i32> %c, i32 0 12 %c1 = extractelement <4 x i32> %c, i32 1 13 %c2 = extractelement <4 x i32> %c, i32 2 14 %c3 = extractelement <4 x i32> %c, i32 3 15 %a0 = extractelement <4 x float> %a, i32 0 16 %a1 = extractelement <4 x float> %a, i32 1 17 %a2 = extractelement <4 x float> %a, i32 2 18 %a3 = extractelement <4 x float> %a, i32 3 19 %b0 = extractelement <4 x float> %b, i32 0 20 %b1 = extractelement <4 x float> %b, i32 1 21 %b2 = extractelement <4 x float> %b, i32 2 22 %b3 = extractelement <4 x float> %b, i32 3 23 %cmp0 = icmp ne i32 %c0, 0 24 %cmp1 = icmp ne i32 %c1, 0 25 %cmp2 = icmp ne i32 %c2, 0 26 %cmp3 = icmp ne i32 %c3, 0 27 %s0 = select i1 %cmp0, float %a0, float %b0 28 %s1 = select i1 %cmp1, float %a1, float %b1 29 %s2 = select i1 %cmp2, float %a2, float %b2 30 %s3 = select i1 %cmp3, float %a3, float %b3 31 %ra = insertelement <4 x float> undef, float %s0, i32 0 32 %rb = insertelement <4 x float> %ra, float %s1, i32 1 33 %rc = insertelement <4 x float> %rb, float %s2, i32 2 34 %rd = insertelement <4 x float> %rc, float %s3, i32 3 35 ret <4 x float> %rd 36 } 37 38 ; Insert in an order different from the vector indices to make sure it 39 ; doesn't matter 40 define <4 x float> @simple_select_insert_out_of_order(<4 x float> %a, <4 x float> %b, <4 x i32> %c) #0 { 41 ; CHECK-LABEL: @simple_select_insert_out_of_order( 42 ; CHECK-NEXT: %1 = icmp ne <4 x i32> %c, zeroinitializer 43 ; CHECK-NEXT: select <4 x i1> %1, <4 x float> %a, <4 x float> %b 44 %c0 = extractelement <4 x i32> %c, i32 0 45 %c1 = extractelement <4 x i32> %c, i32 1 46 %c2 = extractelement <4 x i32> %c, i32 2 47 %c3 = extractelement <4 x i32> %c, i32 3 48 %a0 = extractelement <4 x float> %a, i32 0 49 %a1 = extractelement <4 x float> %a, i32 1 50 %a2 = extractelement <4 x float> %a, i32 2 51 %a3 = extractelement <4 x float> %a, i32 3 52 %b0 = extractelement <4 x float> %b, i32 0 53 %b1 = extractelement <4 x float> %b, i32 1 54 %b2 = extractelement <4 x float> %b, i32 2 55 %b3 = extractelement <4 x float> %b, i32 3 56 %cmp0 = icmp ne i32 %c0, 0 57 %cmp1 = icmp ne i32 %c1, 0 58 %cmp2 = icmp ne i32 %c2, 0 59 %cmp3 = icmp ne i32 %c3, 0 60 %s0 = select i1 %cmp0, float %a0, float %b0 61 %s1 = select i1 %cmp1, float %a1, float %b1 62 %s2 = select i1 %cmp2, float %a2, float %b2 63 %s3 = select i1 %cmp3, float %a3, float %b3 64 %ra = insertelement <4 x float> undef, float %s0, i32 2 65 %rb = insertelement <4 x float> %ra, float %s1, i32 1 66 %rc = insertelement <4 x float> %rb, float %s2, i32 0 67 %rd = insertelement <4 x float> %rc, float %s3, i32 3 68 ret <4 x float> %rd 69 } 70 71 declare void @v4f32_user(<4 x float>) #0 72 declare void @f32_user(float) #0 73 74 ; Multiple users of the final constructed vector 75 define <4 x float> @simple_select_users(<4 x float> %a, <4 x float> %b, <4 x i32> %c) #0 { 76 ; CHECK-LABEL: @simple_select_users( 77 ; CHECK-NEXT: %1 = icmp ne <4 x i32> %c, zeroinitializer 78 ; CHECK-NEXT: select <4 x i1> %1, <4 x float> %a, <4 x float> %b 79 %c0 = extractelement <4 x i32> %c, i32 0 80 %c1 = extractelement <4 x i32> %c, i32 1 81 %c2 = extractelement <4 x i32> %c, i32 2 82 %c3 = extractelement <4 x i32> %c, i32 3 83 %a0 = extractelement <4 x float> %a, i32 0 84 %a1 = extractelement <4 x float> %a, i32 1 85 %a2 = extractelement <4 x float> %a, i32 2 86 %a3 = extractelement <4 x float> %a, i32 3 87 %b0 = extractelement <4 x float> %b, i32 0 88 %b1 = extractelement <4 x float> %b, i32 1 89 %b2 = extractelement <4 x float> %b, i32 2 90 %b3 = extractelement <4 x float> %b, i32 3 91 %cmp0 = icmp ne i32 %c0, 0 92 %cmp1 = icmp ne i32 %c1, 0 93 %cmp2 = icmp ne i32 %c2, 0 94 %cmp3 = icmp ne i32 %c3, 0 95 %s0 = select i1 %cmp0, float %a0, float %b0 96 %s1 = select i1 %cmp1, float %a1, float %b1 97 %s2 = select i1 %cmp2, float %a2, float %b2 98 %s3 = select i1 %cmp3, float %a3, float %b3 99 %ra = insertelement <4 x float> undef, float %s0, i32 0 100 %rb = insertelement <4 x float> %ra, float %s1, i32 1 101 %rc = insertelement <4 x float> %rb, float %s2, i32 2 102 %rd = insertelement <4 x float> %rc, float %s3, i32 3 103 call void @v4f32_user(<4 x float> %rd) #0 104 ret <4 x float> %rd 105 } 106 107 ; Unused insertelement 108 define <4 x float> @simple_select_no_users(<4 x float> %a, <4 x float> %b, <4 x i32> %c) #0 { 109 ; CHECK-LABEL: @simple_select_no_users( 110 ; CHECK-NOT: icmp ne <4 x i32> 111 ; CHECK-NOT: select <4 x i1> 112 %c0 = extractelement <4 x i32> %c, i32 0 113 %c1 = extractelement <4 x i32> %c, i32 1 114 %c2 = extractelement <4 x i32> %c, i32 2 115 %c3 = extractelement <4 x i32> %c, i32 3 116 %a0 = extractelement <4 x float> %a, i32 0 117 %a1 = extractelement <4 x float> %a, i32 1 118 %a2 = extractelement <4 x float> %a, i32 2 119 %a3 = extractelement <4 x float> %a, i32 3 120 %b0 = extractelement <4 x float> %b, i32 0 121 %b1 = extractelement <4 x float> %b, i32 1 122 %b2 = extractelement <4 x float> %b, i32 2 123 %b3 = extractelement <4 x float> %b, i32 3 124 %cmp0 = icmp ne i32 %c0, 0 125 %cmp1 = icmp ne i32 %c1, 0 126 %cmp2 = icmp ne i32 %c2, 0 127 %cmp3 = icmp ne i32 %c3, 0 128 %s0 = select i1 %cmp0, float %a0, float %b0 129 %s1 = select i1 %cmp1, float %a1, float %b1 130 %s2 = select i1 %cmp2, float %a2, float %b2 131 %s3 = select i1 %cmp3, float %a3, float %b3 132 %ra = insertelement <4 x float> undef, float %s0, i32 0 133 %rb = insertelement <4 x float> %ra, float %s1, i32 1 134 %rc = insertelement <4 x float> undef, float %s2, i32 2 135 %rd = insertelement <4 x float> %rc, float %s3, i32 3 136 ret <4 x float> %rd 137 } 138 139 ; Make sure infinite loop doesn't happen which I ran into when trying 140 ; to do this backwards this backwards 141 define <4 x i32> @reconstruct(<4 x i32> %c) #0 { 142 ; CHECK-LABEL: @reconstruct( 143 %c0 = extractelement <4 x i32> %c, i32 0 144 %c1 = extractelement <4 x i32> %c, i32 1 145 %c2 = extractelement <4 x i32> %c, i32 2 146 %c3 = extractelement <4 x i32> %c, i32 3 147 %ra = insertelement <4 x i32> undef, i32 %c0, i32 0 148 %rb = insertelement <4 x i32> %ra, i32 %c1, i32 1 149 %rc = insertelement <4 x i32> %rb, i32 %c2, i32 2 150 %rd = insertelement <4 x i32> %rc, i32 %c3, i32 3 151 ret <4 x i32> %rd 152 } 153 154 define <2 x float> @simple_select_v2(<2 x float> %a, <2 x float> %b, <2 x i32> %c) #0 { 155 ; CHECK-LABEL: @simple_select_v2( 156 ; CHECK: icmp ne <2 x i32> 157 ; CHECK: select <2 x i1> 158 %c0 = extractelement <2 x i32> %c, i32 0 159 %c1 = extractelement <2 x i32> %c, i32 1 160 %a0 = extractelement <2 x float> %a, i32 0 161 %a1 = extractelement <2 x float> %a, i32 1 162 %b0 = extractelement <2 x float> %b, i32 0 163 %b1 = extractelement <2 x float> %b, i32 1 164 %cmp0 = icmp ne i32 %c0, 0 165 %cmp1 = icmp ne i32 %c1, 0 166 %s0 = select i1 %cmp0, float %a0, float %b0 167 %s1 = select i1 %cmp1, float %a1, float %b1 168 %ra = insertelement <2 x float> undef, float %s0, i32 0 169 %rb = insertelement <2 x float> %ra, float %s1, i32 1 170 ret <2 x float> %rb 171 } 172 173 ; Make sure when we construct partial vectors, we don't keep 174 ; re-visiting the insertelement chains starting with undef 175 ; (low cost threshold needed to force this to happen) 176 define <4 x float> @simple_select_partial_vector(<4 x float> %a, <4 x float> %b, <4 x i32> %c) #0 { 177 %c0 = extractelement <4 x i32> %c, i32 0 178 %c1 = extractelement <4 x i32> %c, i32 1 179 %a0 = extractelement <4 x float> %a, i32 0 180 %a1 = extractelement <4 x float> %a, i32 1 181 %b0 = extractelement <4 x float> %b, i32 0 182 %b1 = extractelement <4 x float> %b, i32 1 183 %1 = insertelement <2 x i32> undef, i32 %c0, i32 0 184 %2 = insertelement <2 x i32> %1, i32 %c1, i32 1 185 %3 = icmp ne <2 x i32> %2, zeroinitializer 186 %4 = insertelement <2 x float> undef, float %a0, i32 0 187 %5 = insertelement <2 x float> %4, float %a1, i32 1 188 %6 = insertelement <2 x float> undef, float %b0, i32 0 189 %7 = insertelement <2 x float> %6, float %b1, i32 1 190 %8 = select <2 x i1> %3, <2 x float> %5, <2 x float> %7 191 %9 = extractelement <2 x float> %8, i32 0 192 %ra = insertelement <4 x float> undef, float %9, i32 0 193 %10 = extractelement <2 x float> %8, i32 1 194 %rb = insertelement <4 x float> %ra, float %10, i32 1 195 ret <4 x float> %rb 196 } 197 198 ; Make sure that vectorization happens even if insertelements operations 199 ; must be rescheduled. The case here is from compiling Julia. 200 define <4 x float> @reschedule_extract(<4 x float> %a, <4 x float> %b) { 201 ; CHECK-LABEL: @reschedule_extract( 202 ; CHECK: %1 = fadd <4 x float> %a, %b 203 %a0 = extractelement <4 x float> %a, i32 0 204 %b0 = extractelement <4 x float> %b, i32 0 205 %c0 = fadd float %a0, %b0 206 %v0 = insertelement <4 x float> undef, float %c0, i32 0 207 %a1 = extractelement <4 x float> %a, i32 1 208 %b1 = extractelement <4 x float> %b, i32 1 209 %c1 = fadd float %a1, %b1 210 %v1 = insertelement <4 x float> %v0, float %c1, i32 1 211 %a2 = extractelement <4 x float> %a, i32 2 212 %b2 = extractelement <4 x float> %b, i32 2 213 %c2 = fadd float %a2, %b2 214 %v2 = insertelement <4 x float> %v1, float %c2, i32 2 215 %a3 = extractelement <4 x float> %a, i32 3 216 %b3 = extractelement <4 x float> %b, i32 3 217 %c3 = fadd float %a3, %b3 218 %v3 = insertelement <4 x float> %v2, float %c3, i32 3 219 ret <4 x float> %v3 220 } 221 222 ; Check that cost model for vectorization takes credit for 223 ; instructions that are erased. 224 define <4 x float> @take_credit(<4 x float> %a, <4 x float> %b) { 225 ; ZEROTHRESH-LABEL: @take_credit( 226 ; ZEROTHRESH: %1 = fadd <4 x float> %a, %b 227 %a0 = extractelement <4 x float> %a, i32 0 228 %b0 = extractelement <4 x float> %b, i32 0 229 %c0 = fadd float %a0, %b0 230 %a1 = extractelement <4 x float> %a, i32 1 231 %b1 = extractelement <4 x float> %b, i32 1 232 %c1 = fadd float %a1, %b1 233 %a2 = extractelement <4 x float> %a, i32 2 234 %b2 = extractelement <4 x float> %b, i32 2 235 %c2 = fadd float %a2, %b2 236 %a3 = extractelement <4 x float> %a, i32 3 237 %b3 = extractelement <4 x float> %b, i32 3 238 %c3 = fadd float %a3, %b3 239 %v0 = insertelement <4 x float> undef, float %c0, i32 0 240 %v1 = insertelement <4 x float> %v0, float %c1, i32 1 241 %v2 = insertelement <4 x float> %v1, float %c2, i32 2 242 %v3 = insertelement <4 x float> %v2, float %c3, i32 3 243 ret <4 x float> %v3 244 } 245 246 ; Make sure we handle multiple trees that feed one build vector correctly. 247 define <4 x double> @multi_tree(double %w, double %x, double %y, double %z) { 248 entry: 249 %t0 = fadd double %w , 0.000000e+00 250 %t1 = fadd double %x , 1.000000e+00 251 %t2 = fadd double %y , 2.000000e+00 252 %t3 = fadd double %z , 3.000000e+00 253 %t4 = fmul double %t0, 1.000000e+00 254 %i1 = insertelement <4 x double> undef, double %t4, i32 3 255 %t5 = fmul double %t1, 1.000000e+00 256 %i2 = insertelement <4 x double> %i1, double %t5, i32 2 257 %t6 = fmul double %t2, 1.000000e+00 258 %i3 = insertelement <4 x double> %i2, double %t6, i32 1 259 %t7 = fmul double %t3, 1.000000e+00 260 %i4 = insertelement <4 x double> %i3, double %t7, i32 0 261 ret <4 x double> %i4 262 } 263 ; CHECK-LABEL: @multi_tree 264 ; CHECK-DAG: %[[V0:.+]] = insertelement <2 x double> undef, double %w, i32 0 265 ; CHECK-DAG: %[[V1:.+]] = insertelement <2 x double> %[[V0]], double %x, i32 1 266 ; CHECK-DAG: %[[V2:.+]] = fadd <2 x double> %[[V1]], <double 0.000000e+00, double 1.000000e+00> 267 ; CHECK-DAG: %[[V3:.+]] = insertelement <2 x double> undef, double %y, i32 0 268 ; CHECK-DAG: %[[V4:.+]] = insertelement <2 x double> %[[V3]], double %z, i32 1 269 ; CHECK-DAG: %[[V5:.+]] = fadd <2 x double> %[[V4]], <double 2.000000e+00, double 3.000000e+00> 270 ; CHECK-DAG: %[[V6:.+]] = fmul <2 x double> <double 1.000000e+00, double 1.000000e+00>, %[[V2]] 271 ; CHECK-DAG: %[[V7:.+]] = extractelement <2 x double> %[[V6]], i32 0 272 ; CHECK-DAG: %[[I1:.+]] = insertelement <4 x double> undef, double %[[V7]], i32 3 273 ; CHECK-DAG: %[[V8:.+]] = extractelement <2 x double> %[[V6]], i32 1 274 ; CHECK-DAG: %[[I2:.+]] = insertelement <4 x double> %[[I1]], double %[[V8]], i32 2 275 ; CHECK-DAG: %[[V9:.+]] = fmul <2 x double> <double 1.000000e+00, double 1.000000e+00>, %[[V5]] 276 ; CHECK-DAG: %[[V10:.+]] = extractelement <2 x double> %[[V9]], i32 0 277 ; CHECK-DAG: %[[I3:.+]] = insertelement <4 x double> %i2, double %[[V10]], i32 1 278 ; CHECK-DAG: %[[V11:.+]] = extractelement <2 x double> %[[V9]], i32 1 279 ; CHECK-DAG: %[[I4:.+]] = insertelement <4 x double> %i3, double %[[V11]], i32 0 280 ; CHECK: ret <4 x double> %[[I4]] 281 282 attributes #0 = { nounwind ssp uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf"="true" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" } 283
