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1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 52; RUN: opt -S -passes=loop-vectorize,instcombine -force-vector-width=4 -force-vector-interleave=1 -enable-interleaved-mem-accesses=true < %s | FileCheck %s3 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 an7; interleave group for the access to array 'in' due to the possibly wrapping8; unsigned 'out_ix' index.9;10; In this test the interleave-group of the loads is not full (has gaps), so11; the wrapping checks are necessary. Here this cannot be done statically so12; runtime checks are needed, but with Assume=false getPtrStride cannot add13; 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]], 030; 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]], 533; 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]], 336; CHECK-NEXT: [[TMP0:%.*]] = icmp eq i64 [[N_MOD_VF]], 037; 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]], 343; CHECK-NEXT: [[TMP2:%.*]] = getelementptr inbounds i8, ptr [[IN]], i64 [[DOTIDX]]44; CHECK-NEXT: [[WIDE_VEC:%.*]] = load <8 x i32>, ptr [[TMP2]], align 445; 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 448; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 449; 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 void60; 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]], 363; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[IN]], i64 [[ARRAYIDX_IDX]]64; CHECK-NEXT: [[TMP5:%.*]] = load i32, ptr [[ARRAYIDX]], align 465; CHECK-NEXT: [[ARRAYIDX1:%.*]] = getelementptr inbounds float, ptr [[OUT]], i64 [[OUT_OFFSET_08]]66; CHECK-NEXT: store i32 [[TMP5]], ptr [[ARRAYIDX1]], align 467; CHECK-NEXT: [[INC]] = add nuw i64 [[OUT_OFFSET_08]], 168; 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, 073 br i1 %cmp7, label %for.cond.cleanup, label %for.body.preheader74 75for.body.preheader:76 br label %for.body77 78for.cond.cleanup.loopexit:79 br label %for.cond.cleanup80 81for.cond.cleanup:82 ret void83 84for.body:85 %out_offset.08 = phi i64 [ %inc, %for.body ], [ 0, %for.body.preheader ]86 %mul = shl i64 %out_offset.08, 187 %arrayidx = getelementptr inbounds float, ptr %in, i64 %mul88 %0 = load i32, ptr %arrayidx, align 489 %arrayidx1 = getelementptr inbounds float, ptr %out, i64 %out_offset.0890 store i32 %0, ptr %arrayidx1, align 491 %inc = add nuw i64 %out_offset.08, 192 %exitcond = icmp eq i64 %inc, %size93 br i1 %exitcond, label %for.cond.cleanup.loopexit, label %for.body94}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