1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5 2; RUN: opt < %s -passes=loop-vectorize -force-vector-width=4 -force-vector-interleave=1 -S | FileCheck %s 3 4; Check that we correctly handle the use of %start2 in the exit block, and do 5; 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]], 12345 12; CHECK-NEXT: [[TMP0:%.*]] = sub i64 [[END]], [[START2]] 13; CHECK-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[TMP0]], 4 14; 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]], 4 17; 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]], 4 23; 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 4 35; CHECK-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i32, ptr [[P2]], i64 [[IND1]] 36; CHECK-NEXT: [[TMP8:%.*]] = load i32, ptr [[ARRAYIDX2]], align 4 37; CHECK-NEXT: [[IND_NEXT1]] = add i64 [[IND1]], 1 38; 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, 12345 46 br label %for.body 47 48for.body: 49 %ind = phi i64 [ %start2, %entry ], [ %ind.next, %for.body ] 50 %arrayidx1 = getelementptr inbounds i32, ptr %p1, i64 %ind 51 %0 = load i32, ptr %arrayidx1, align 4 52 %arrayidx2 = getelementptr inbounds i32, ptr %p2, i64 %ind 53 %1 = load i32, ptr %arrayidx2, align 4 54 %ind.next = add i64 %ind, 1 55 %cmp = icmp ne i64 %ind.next, %end 56 br i1 %cmp, label %for.body, label %exit 57 58exit: 59 %use = phi i64 [ %start2, %for.body ] 60 ret i64 %use 61} 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