1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5 2; RUN: opt -S -passes=loop-vectorize,instcombine -force-vector-width=4 -force-vector-interleave=1 -enable-interleaved-mem-accesses=true < %s | FileCheck %s 3 4target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" 5 6; Check that the interleaved-mem-access analysis currently does not create an 7; interleave group for the access to array 'in' due to the possibly wrapping 8; unsigned 'out_ix' index. 9; 10; In this test the interleave-group of the loads is not full (has gaps), so 11; the wrapping checks are necessary. Here this cannot be done statically so 12; runtime checks are needed, but with Assume=false getPtrStride cannot add 13; runtime checks and as a result we can't create the interleave-group. 14; 15; #include <stdlib.h> 16; void test(ptr __restrict__ out, ptr __restrict__ in, size_t size) 17; { 18; for (size_t out_offset = 0; out_offset < size; ++out_offset) 19; { 20; float t0 = in[2*out_offset]; 21; out[out_offset] = t0; 22; } 23; } 24 25define void @_Z4testPfS_m(ptr noalias nocapture %out, ptr noalias nocapture readonly %in, i64 %size) local_unnamed_addr { 26; CHECK-LABEL: define void @_Z4testPfS_m( 27; CHECK-SAME: ptr noalias captures(none) [[OUT:%.*]], ptr noalias readonly captures(none) [[IN:%.*]], i64 [[SIZE:%.*]]) local_unnamed_addr { 28; CHECK-NEXT: [[ENTRY:.*:]] 29; CHECK-NEXT: [[CMP7:%.*]] = icmp eq i64 [[SIZE]], 0 30; CHECK-NEXT: br i1 [[CMP7]], label %[[FOR_COND_CLEANUP:.*]], label %[[FOR_BODY_PREHEADER:.*]] 31; CHECK: [[FOR_BODY_PREHEADER]]: 32; CHECK-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[SIZE]], 5 33; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK]], label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]] 34; CHECK: [[VECTOR_PH]]: 35; CHECK-NEXT: [[N_MOD_VF:%.*]] = and i64 [[SIZE]], 3 36; CHECK-NEXT: [[TMP0:%.*]] = icmp eq i64 [[N_MOD_VF]], 0 37; CHECK-NEXT: [[TMP1:%.*]] = select i1 [[TMP0]], i64 4, i64 [[N_MOD_VF]] 38; CHECK-NEXT: [[N_VEC:%.*]] = sub i64 [[SIZE]], [[TMP1]] 39; CHECK-NEXT: br label %[[VECTOR_BODY:.*]] 40; CHECK: [[VECTOR_BODY]]: 41; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ] 42; CHECK-NEXT: [[DOTIDX:%.*]] = shl i64 [[INDEX]], 3 43; CHECK-NEXT: [[TMP2:%.*]] = getelementptr inbounds i8, ptr [[IN]], i64 [[DOTIDX]] 44; CHECK-NEXT: [[WIDE_VEC:%.*]] = load <8 x i32>, ptr [[TMP2]], align 4 45; CHECK-NEXT: [[STRIDED_VEC:%.*]] = shufflevector <8 x i32> [[WIDE_VEC]], <8 x i32> poison, <4 x i32> <i32 0, i32 2, i32 4, i32 6> 46; CHECK-NEXT: [[TMP3:%.*]] = getelementptr inbounds float, ptr [[OUT]], i64 [[INDEX]] 47; CHECK-NEXT: store <4 x i32> [[STRIDED_VEC]], ptr [[TMP3]], align 4 48; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 4 49; CHECK-NEXT: [[TMP4:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]] 50; CHECK-NEXT: br i1 [[TMP4]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]] 51; CHECK: [[MIDDLE_BLOCK]]: 52; CHECK-NEXT: br label %[[SCALAR_PH]] 53; CHECK: [[SCALAR_PH]]: 54; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], %[[MIDDLE_BLOCK]] ], [ 0, %[[FOR_BODY_PREHEADER]] ] 55; CHECK-NEXT: br label %[[FOR_BODY:.*]] 56; CHECK: [[FOR_COND_CLEANUP_LOOPEXIT:.*]]: 57; CHECK-NEXT: br label %[[FOR_COND_CLEANUP]] 58; CHECK: [[FOR_COND_CLEANUP]]: 59; CHECK-NEXT: ret void 60; CHECK: [[FOR_BODY]]: 61; CHECK-NEXT: [[OUT_OFFSET_08:%.*]] = phi i64 [ [[INC:%.*]], %[[FOR_BODY]] ], [ [[BC_RESUME_VAL]], %[[SCALAR_PH]] ] 62; CHECK-NEXT: [[ARRAYIDX_IDX:%.*]] = shl i64 [[OUT_OFFSET_08]], 3 63; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[IN]], i64 [[ARRAYIDX_IDX]] 64; CHECK-NEXT: [[TMP5:%.*]] = load i32, ptr [[ARRAYIDX]], align 4 65; CHECK-NEXT: [[ARRAYIDX1:%.*]] = getelementptr inbounds float, ptr [[OUT]], i64 [[OUT_OFFSET_08]] 66; CHECK-NEXT: store i32 [[TMP5]], ptr [[ARRAYIDX1]], align 4 67; CHECK-NEXT: [[INC]] = add nuw i64 [[OUT_OFFSET_08]], 1 68; CHECK-NEXT: [[EXITCOND:%.*]] = icmp eq i64 [[INC]], [[SIZE]] 69; CHECK-NEXT: br i1 [[EXITCOND]], label %[[FOR_COND_CLEANUP_LOOPEXIT]], label %[[FOR_BODY]], !llvm.loop [[LOOP3:![0-9]+]] 70; 71entry: 72 %cmp7 = icmp eq i64 %size, 0 73 br i1 %cmp7, label %for.cond.cleanup, label %for.body.preheader 74 75for.body.preheader: 76 br label %for.body 77 78for.cond.cleanup.loopexit: 79 br label %for.cond.cleanup 80 81for.cond.cleanup: 82 ret void 83 84for.body: 85 %out_offset.08 = phi i64 [ %inc, %for.body ], [ 0, %for.body.preheader ] 86 %mul = shl i64 %out_offset.08, 1 87 %arrayidx = getelementptr inbounds float, ptr %in, i64 %mul 88 %0 = load i32, ptr %arrayidx, align 4 89 %arrayidx1 = getelementptr inbounds float, ptr %out, i64 %out_offset.08 90 store i32 %0, ptr %arrayidx1, align 4 91 %inc = add nuw i64 %out_offset.08, 1 92 %exitcond = icmp eq i64 %inc, %size 93 br i1 %exitcond, label %for.cond.cleanup.loopexit, label %for.body 94} 95;. 96; CHECK: [[LOOP0]] = distinct !{[[LOOP0]], [[META1:![0-9]+]], [[META2:![0-9]+]]} 97; CHECK: [[META1]] = !{!"llvm.loop.isvectorized", i32 1} 98; CHECK: [[META2]] = !{!"llvm.loop.unroll.runtime.disable"} 99; CHECK: [[LOOP3]] = distinct !{[[LOOP3]], [[META2]], [[META1]]} 100;. 101