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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 -force-vector-width=4 -force-vector-interleave=1 -S | FileCheck %s3 4; Check that we correctly handle the use of %start2 in the exit block, and do5; not crash.6 7define i64 @foo(ptr %p1, ptr %p2, i64 %start, i64 %end) {8; CHECK-LABEL: define i64 @foo(9; CHECK-SAME: ptr [[P1:%.*]], ptr [[P2:%.*]], i64 [[START:%.*]], i64 [[END:%.*]]) {10; CHECK-NEXT: [[ENTRY:.*]]:11; CHECK-NEXT: [[START2:%.*]] = and i64 [[START]], 1234512; CHECK-NEXT: [[TMP0:%.*]] = sub i64 [[END]], [[START2]]13; CHECK-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[TMP0]], 414; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK]], label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]]15; CHECK: [[VECTOR_PH]]:16; CHECK-NEXT: [[N_MOD_VF:%.*]] = urem i64 [[TMP0]], 417; CHECK-NEXT: [[N_VEC:%.*]] = sub i64 [[TMP0]], [[N_MOD_VF]]18; CHECK-NEXT: [[IND_END:%.*]] = add i64 [[START2]], [[N_VEC]]19; CHECK-NEXT: br label %[[VECTOR_BODY:.*]]20; CHECK: [[VECTOR_BODY]]:21; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]22; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 423; CHECK-NEXT: [[TMP6:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]24; CHECK-NEXT: br i1 [[TMP6]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]]25; CHECK: [[MIDDLE_BLOCK]]:26; CHECK-NEXT: [[CMP_N:%.*]] = icmp eq i64 [[TMP0]], [[N_VEC]]27; CHECK-NEXT: br i1 [[CMP_N]], label %[[EXIT:.*]], label %[[SCALAR_PH]]28; CHECK: [[SCALAR_PH]]:29; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ [[IND_END]], %[[MIDDLE_BLOCK]] ], [ [[START2]], %[[ENTRY]] ]30; CHECK-NEXT: br label %[[FOR_BODY:.*]]31; CHECK: [[FOR_BODY]]:32; CHECK-NEXT: [[IND1:%.*]] = phi i64 [ [[BC_RESUME_VAL]], %[[SCALAR_PH]] ], [ [[IND_NEXT1:%.*]], %[[FOR_BODY]] ]33; CHECK-NEXT: [[ARRAYIDX3:%.*]] = getelementptr inbounds i32, ptr [[P1]], i64 [[IND1]]34; CHECK-NEXT: [[TMP7:%.*]] = load i32, ptr [[ARRAYIDX3]], align 435; CHECK-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i32, ptr [[P2]], i64 [[IND1]]36; CHECK-NEXT: [[TMP8:%.*]] = load i32, ptr [[ARRAYIDX2]], align 437; CHECK-NEXT: [[IND_NEXT1]] = add i64 [[IND1]], 138; CHECK-NEXT: [[CMP:%.*]] = icmp ne i64 [[IND_NEXT1]], [[END]]39; CHECK-NEXT: br i1 [[CMP]], label %[[FOR_BODY]], label %[[EXIT]], !llvm.loop [[LOOP3:![0-9]+]]40; CHECK: [[EXIT]]:41; CHECK-NEXT: [[USE:%.*]] = phi i64 [ [[START2]], %[[FOR_BODY]] ], [ [[START2]], %[[MIDDLE_BLOCK]] ]42; CHECK-NEXT: ret i64 [[USE]]43;44entry:45 %start2 = and i64 %start, 1234546 br label %for.body47 48for.body:49 %ind = phi i64 [ %start2, %entry ], [ %ind.next, %for.body ]50 %arrayidx1 = getelementptr inbounds i32, ptr %p1, i64 %ind51 %0 = load i32, ptr %arrayidx1, align 452 %arrayidx2 = getelementptr inbounds i32, ptr %p2, i64 %ind53 %1 = load i32, ptr %arrayidx2, align 454 %ind.next = add i64 %ind, 155 %cmp = icmp ne i64 %ind.next, %end56 br i1 %cmp, label %for.body, label %exit57 58exit:59 %use = phi i64 [ %start2, %for.body ]60 ret i64 %use61}62 63;.64; CHECK: [[LOOP0]] = distinct !{[[LOOP0]], [[META1:![0-9]+]], [[META2:![0-9]+]]}65; CHECK: [[META1]] = !{!"llvm.loop.isvectorized", i32 1}66; CHECK: [[META2]] = !{!"llvm.loop.unroll.runtime.disable"}67; CHECK: [[LOOP3]] = distinct !{[[LOOP3]], [[META2]], [[META1]]}68;.69