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1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py2; RUN: opt -passes=loop-bound-split -S < %s | FileCheck %s3 4@B = external global [10 x i16], align 15 6define void @test() {7; CHECK-LABEL: @test(8; CHECK-NEXT: entry:9; CHECK-NEXT: br label [[ENTRY_SPLIT:%.*]]10; CHECK: entry.split:11; CHECK-NEXT: br label [[FOR_COND:%.*]]12; CHECK: for.cond:13; CHECK-NEXT: [[I_0:%.*]] = phi i16 [ 0, [[ENTRY_SPLIT]] ], [ [[INC_0:%.*]], [[FOR_INC:%.*]] ]14; CHECK-NEXT: [[I_1:%.*]] = phi i16 [ 10, [[ENTRY_SPLIT]] ], [ [[INC_0]], [[FOR_INC]] ]15; CHECK-NEXT: [[I_2:%.*]] = phi i16 [ 10, [[ENTRY_SPLIT]] ], [ [[INC_2:%.*]], [[FOR_INC]] ]16; CHECK-NEXT: [[I_3:%.*]] = phi i16 [ 15, [[ENTRY_SPLIT]] ], [ 30, [[FOR_INC]] ]17; CHECK-NEXT: [[EXITCOND_NOT:%.*]] = icmp eq i16 [[I_0]], 518; CHECK-NEXT: br i1 [[EXITCOND_NOT]], label [[ENTRY_SPLIT_SPLIT:%.*]], label [[FOR_BODY:%.*]]19; CHECK: for.body:20; CHECK-NEXT: [[CMP1:%.*]] = icmp ult i16 [[I_0]], 521; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds [10 x i16], ptr @B, i16 0, i16 [[I_0]]22; CHECK-NEXT: [[TMP0:%.*]] = load i16, ptr [[ARRAYIDX]], align 123; CHECK-NEXT: br i1 true, label [[IF_THEN:%.*]], label [[IF_ELSE:%.*]]24; CHECK: if.then:25; CHECK-NEXT: call void @foo(i16 [[TMP0]], i16 [[I_3]])26; CHECK-NEXT: br label [[FOR_INC]]27; CHECK: if.else:28; CHECK-NEXT: call void @bar(i16 [[TMP0]], i16 [[I_3]])29; CHECK-NEXT: br label [[FOR_INC]]30; CHECK: for.inc:31; CHECK-NEXT: [[INC_0]] = add nuw nsw i16 [[I_0]], 132; CHECK-NEXT: [[INC_2]] = add nuw nsw i16 [[I_2]], 233; CHECK-NEXT: br label [[FOR_COND]]34; CHECK: entry.split.split:35; CHECK-NEXT: [[I_0_LCSSA:%.*]] = phi i16 [ [[I_0]], [[FOR_COND]] ]36; CHECK-NEXT: [[I_1_LCSSA:%.*]] = phi i16 [ [[I_1]], [[FOR_COND]] ]37; CHECK-NEXT: [[I_2_LCSSA:%.*]] = phi i16 [ [[I_2]], [[FOR_COND]] ]38; CHECK-NEXT: [[I_3_LCSSA:%.*]] = phi i16 [ [[I_3]], [[FOR_COND]] ]39; CHECK-NEXT: [[TMP1:%.*]] = icmp ne i16 [[I_0_LCSSA]], 1040; CHECK-NEXT: br i1 [[TMP1]], label [[FOR_COND_SPLIT_PREHEADER:%.*]], label [[FOR_END:%.*]]41; CHECK: for.cond.split.preheader:42; CHECK-NEXT: br label [[FOR_COND_SPLIT:%.*]]43; CHECK: for.cond.split:44; CHECK-NEXT: [[I_0_SPLIT:%.*]] = phi i16 [ [[INC_0_SPLIT:%.*]], [[FOR_INC_SPLIT:%.*]] ], [ [[I_0_LCSSA]], [[FOR_COND_SPLIT_PREHEADER]] ]45; CHECK-NEXT: [[I_1_SPLIT:%.*]] = phi i16 [ [[INC_0_SPLIT]], [[FOR_INC_SPLIT]] ], [ [[I_1_LCSSA]], [[FOR_COND_SPLIT_PREHEADER]] ]46; CHECK-NEXT: [[I_2_SPLIT:%.*]] = phi i16 [ [[INC_2_SPLIT:%.*]], [[FOR_INC_SPLIT]] ], [ [[I_2_LCSSA]], [[FOR_COND_SPLIT_PREHEADER]] ]47; CHECK-NEXT: [[I_3_SPLIT:%.*]] = phi i16 [ 30, [[FOR_INC_SPLIT]] ], [ [[I_3_LCSSA]], [[FOR_COND_SPLIT_PREHEADER]] ]48; CHECK-NEXT: [[EXITCOND_NOT_SPLIT:%.*]] = icmp eq i16 [[I_0_SPLIT]], 1049; CHECK-NEXT: br i1 [[EXITCOND_NOT_SPLIT]], label [[FOR_END_LOOPEXIT:%.*]], label [[FOR_BODY_SPLIT:%.*]]50; CHECK: for.body.split:51; CHECK-NEXT: [[CMP1_SPLIT:%.*]] = icmp ult i16 [[I_0_SPLIT]], 552; CHECK-NEXT: [[ARRAYIDX_SPLIT:%.*]] = getelementptr inbounds [10 x i16], ptr @B, i16 0, i16 [[I_0_SPLIT]]53; CHECK-NEXT: [[TMP2:%.*]] = load i16, ptr [[ARRAYIDX_SPLIT]], align 154; CHECK-NEXT: br i1 false, label [[IF_THEN_SPLIT:%.*]], label [[IF_ELSE_SPLIT:%.*]]55; CHECK: if.else.split:56; CHECK-NEXT: call void @bar(i16 [[TMP2]], i16 [[I_3_SPLIT]])57; CHECK-NEXT: br label [[FOR_INC_SPLIT]]58; CHECK: if.then.split:59; CHECK-NEXT: call void @foo(i16 [[TMP2]], i16 [[I_3_SPLIT]])60; CHECK-NEXT: br label [[FOR_INC_SPLIT]]61; CHECK: for.inc.split:62; CHECK-NEXT: [[INC_0_SPLIT]] = add nuw nsw i16 [[I_0_SPLIT]], 163; CHECK-NEXT: [[INC_2_SPLIT]] = add nuw nsw i16 [[I_2_SPLIT]], 264; CHECK-NEXT: br label [[FOR_COND_SPLIT]]65; CHECK: for.end.loopexit:66; CHECK-NEXT: br label [[FOR_END]]67; CHECK: for.end:68; CHECK-NEXT: ret void69;70entry:71 br label %for.cond72 73for.cond: ; preds = %for.inc, %entry74 %i.0 = phi i16 [ 0, %entry ], [ %inc.0, %for.inc ]75 %i.1 = phi i16 [ 10, %entry ], [ %inc.0, %for.inc ]76 %i.2 = phi i16 [ 10, %entry ], [ %inc.2, %for.inc ]77 %i.3 = phi i16 [ 15, %entry ], [ 30, %for.inc ]78 %exitcond.not = icmp eq i16 %i.0, 1079 br i1 %exitcond.not, label %for.end, label %for.body80 81for.body: ; preds = %for.cond82 %cmp1 = icmp ult i16 %i.0, 583 %arrayidx = getelementptr inbounds [10 x i16], ptr @B, i16 0, i16 %i.084 %0 = load i16, ptr %arrayidx, align 185 br i1 %cmp1, label %if.then, label %if.else86 87if.then: ; preds = %for.body88 call void @foo(i16 %0, i16 %i.3)89 br label %for.inc90 91if.else: ; preds = %for.body92 call void @bar(i16 %0, i16 %i.3)93 br label %for.inc94 95for.inc: ; preds = %if.else, %if.then96 %inc.0 = add nuw nsw i16 %i.0, 197 %inc.2 = add nuw nsw i16 %i.2, 298 br label %for.cond99 100for.end: ; preds = %for.cond101 ret void102}103 104declare void @foo(i16, i16)105declare void @bar(i16, i16)106