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1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --check-globals none --filter-out-after "scalar.ph\:" --version 52; RUN: opt < %s -passes=loop-vectorize -force-vector-width=4 -S | FileCheck %s3 4; Test case for PR45525. Checks that phi's with a single predecessor and a mask are supported.5 6define void @main(i1 %cond, ptr %arr) {7; CHECK-LABEL: define void @main(8; CHECK-SAME: i1 [[COND:%.*]], ptr [[ARR:%.*]]) {9; CHECK-NEXT: [[BB_0:.*:]]10; CHECK-NEXT: br label %[[VECTOR_PH:.*]]11; CHECK: [[VECTOR_PH]]:12; CHECK-NEXT: br label %[[VECTOR_BODY:.*]]13; CHECK: [[VECTOR_BODY]]:14; CHECK-NEXT: [[INDEX:%.*]] = phi i32 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]15; CHECK-NEXT: [[VEC_IND:%.*]] = phi <4 x i32> [ <i32 0, i32 1, i32 2, i32 3>, %[[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], %[[VECTOR_BODY]] ]16; CHECK-NEXT: [[TMP5:%.*]] = mul <4 x i32> [[VEC_IND]], splat (i32 3)17; CHECK-NEXT: [[PREDPHI:%.*]] = select i1 [[COND]], <4 x i32> splat (i32 7), <4 x i32> [[TMP5]]18; CHECK-NEXT: [[TMP1:%.*]] = getelementptr inbounds i32, ptr [[ARR]], i32 [[INDEX]]19; CHECK-NEXT: store <4 x i32> [[PREDPHI]], ptr [[TMP1]], align 420; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i32 [[INDEX]], 421; CHECK-NEXT: [[VEC_IND_NEXT]] = add <4 x i32> [[VEC_IND]], splat (i32 4)22; CHECK-NEXT: [[TMP2:%.*]] = icmp eq i32 [[INDEX_NEXT]], 3223; CHECK-NEXT: br i1 [[TMP2]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]]24; CHECK: [[MIDDLE_BLOCK]]:25; CHECK-NEXT: br label %[[BB_4:.*]]26; CHECK: [[BB_4]]:27; CHECK-NEXT: ret void28;29bb.0:30 br label %bb.131 32bb.1: ; preds = %bb.3, %bb.033 %iv = phi i32 [ 0, %bb.0 ], [ %iv.next, %bb.3 ]34 br i1 %cond, label %bb.3, label %bb.235 36bb.2: ; preds = %bb.137 %single.pred = phi i32 [ %iv, %bb.1 ]38 %mult = mul i32 %single.pred, 339 br label %bb.340 41bb.3: ; preds = %bb.2, %bb.142 %stored.value = phi i32 [ 7, %bb.1 ], [ %mult, %bb.2 ]43 %arrayidx = getelementptr inbounds i32, ptr %arr, i32 %iv44 store i32 %stored.value, ptr %arrayidx45 %iv.next = add i32 %iv, 146 %continue = icmp ult i32 %iv.next, 3247 br i1 %continue, label %bb.1, label %bb.448 49bb.4: ; preds = %bb.350 ret void51}52