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1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py2; RUN: opt -S -passes=loop-vectorize -force-vector-width=2 < %s | FileCheck %s3 4target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"5 6define i16 @multiple_exit_one_with_constant_condition(ptr %dst, i64 %x) {7; CHECK-LABEL: @multiple_exit_one_with_constant_condition(8; CHECK-NEXT: entry:9; CHECK-NEXT: [[TMP0:%.*]] = add i64 [[X:%.*]], 110; CHECK-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ule i64 [[TMP0]], 211; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK]], label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]12; CHECK: vector.ph:13; CHECK-NEXT: [[N_MOD_VF:%.*]] = urem i64 [[TMP0]], 214; CHECK-NEXT: [[TMP1:%.*]] = icmp eq i64 [[N_MOD_VF]], 015; CHECK-NEXT: [[TMP2:%.*]] = select i1 [[TMP1]], i64 2, i64 [[N_MOD_VF]]16; CHECK-NEXT: [[N_VEC:%.*]] = sub i64 [[TMP0]], [[TMP2]]17; CHECK-NEXT: br label [[VECTOR_BODY:%.*]]18; CHECK: vector.body:19; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]20; CHECK-NEXT: [[TMP3:%.*]] = add i64 [[INDEX]], 021; CHECK-NEXT: [[TMP4:%.*]] = add i64 [[INDEX]], 122; CHECK-NEXT: [[TMP5:%.*]] = getelementptr inbounds i32, ptr [[DST:%.*]], i64 [[TMP3]]23; CHECK-NEXT: [[TMP6:%.*]] = getelementptr inbounds i32, ptr [[DST]], i64 [[TMP4]]24; CHECK-NEXT: store i64 0, ptr [[TMP5]], align 825; CHECK-NEXT: store i64 0, ptr [[TMP6]], align 826; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 227; CHECK-NEXT: [[TMP7:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]28; CHECK-NEXT: br i1 [[TMP7]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]]29; CHECK: middle.block:30; CHECK-NEXT: br label [[SCALAR_PH]]31; CHECK: scalar.ph:32; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY:%.*]] ]33; CHECK-NEXT: br label [[LOOP_HEADER:%.*]]34; CHECK: loop.header:35; CHECK-NEXT: [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], [[LOOP_LATCH:%.*]] ]36; CHECK-NEXT: [[GEP:%.*]] = getelementptr inbounds i32, ptr [[DST]], i64 [[IV]]37; CHECK-NEXT: store i64 0, ptr [[GEP]], align 838; CHECK-NEXT: br i1 true, label [[LOOP_THEN:%.*]], label [[EXIT_2:%.*]]39; CHECK: loop.then:40; CHECK-NEXT: [[CMP3:%.*]] = icmp ne i64 [[IV]], [[X]]41; CHECK-NEXT: br i1 [[CMP3]], label [[LOOP_LATCH]], label [[EXIT_1:%.*]]42; CHECK: loop.latch:43; CHECK-NEXT: [[IV_NEXT]] = add i64 [[IV]], 144; CHECK-NEXT: br label [[LOOP_HEADER]], !llvm.loop [[LOOP3:![0-9]+]]45; CHECK: exit.1:46; CHECK-NEXT: ret i16 047; CHECK: exit.2:48; CHECK-NEXT: ret i16 149;50entry:51 br label %loop.header52 53loop.header:54 %iv = phi i64 [ 0, %entry ], [ %iv.next, %loop.latch ]55 %gep = getelementptr inbounds i32, ptr %dst, i64 %iv56 store i64 0, ptr %gep57 br i1 true, label %loop.then, label %exit.258 59loop.then:60 %cmp3 = icmp ne i64 %iv, %x61 br i1 %cmp3, label %loop.latch, label %exit.162 63loop.latch:64 %iv.next = add i64 %iv, 165 br label %loop.header66 67exit.1:68 ret i16 069 70exit.2:71 ret i16 172}73