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1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py2; RUN: opt -passes=loop-unroll -unroll-allow-partial -S %s -verify-loop-info -verify-dom-info -verify-loop-lcssa | FileCheck %s3 4@table = internal unnamed_addr global [344 x i32] zeroinitializer, align 165 6define i32 @test_partial_unroll_with_breakout_at_iter0() {7;8;9; CHECK-LABEL: @test_partial_unroll_with_breakout_at_iter0(10; CHECK-NEXT: entry:11; CHECK-NEXT: br label [[FOR_HEADER:%.*]]12; CHECK: for.header:13; CHECK-NEXT: [[RED:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[RED_NEXT_3:%.*]], [[FOR_LATCH_3:%.*]] ]14; CHECK-NEXT: [[IV:%.*]] = phi i64 [ 0, [[ENTRY]] ], [ [[IV_NEXT_3:%.*]], [[FOR_LATCH_3]] ]15; CHECK-NEXT: [[RED_NEXT:%.*]] = add nuw nsw i32 10, [[RED]]16; CHECK-NEXT: [[IV_NEXT:%.*]] = add nuw nsw i64 [[IV]], 217; CHECK-NEXT: [[PTR:%.*]] = getelementptr inbounds [344 x i32], ptr @table, i64 0, i64 [[IV_NEXT]]18; CHECK-NEXT: store i32 [[RED_NEXT]], ptr [[PTR]], align 419; CHECK-NEXT: br label [[FOR_LATCH:%.*]]20; CHECK: for.latch:21; CHECK-NEXT: [[RED_NEXT_1:%.*]] = add nuw nsw i32 10, [[RED_NEXT]]22; CHECK-NEXT: [[IV_NEXT_1:%.*]] = add nuw nsw i64 [[IV]], 423; CHECK-NEXT: [[PTR_1:%.*]] = getelementptr inbounds [344 x i32], ptr @table, i64 0, i64 [[IV_NEXT_1]]24; CHECK-NEXT: store i32 [[RED_NEXT_1]], ptr [[PTR_1]], align 425; CHECK-NEXT: br label [[FOR_LATCH_1:%.*]]26; CHECK: for.latch.1:27; CHECK-NEXT: [[RED_NEXT_2:%.*]] = add nuw nsw i32 10, [[RED_NEXT_1]]28; CHECK-NEXT: [[IV_NEXT_2:%.*]] = add nuw nsw i64 [[IV]], 629; CHECK-NEXT: [[PTR_2:%.*]] = getelementptr inbounds [344 x i32], ptr @table, i64 0, i64 [[IV_NEXT_2]]30; CHECK-NEXT: store i32 [[RED_NEXT_2]], ptr [[PTR_2]], align 431; CHECK-NEXT: br label [[FOR_LATCH_2:%.*]]32; CHECK: for.latch.2:33; CHECK-NEXT: [[RED_NEXT_3]] = add nuw nsw i32 10, [[RED_NEXT_2]]34; CHECK-NEXT: [[IV_NEXT_3]] = add nuw nsw i64 [[IV]], 835; CHECK-NEXT: [[PTR_3:%.*]] = getelementptr inbounds [344 x i32], ptr @table, i64 0, i64 [[IV_NEXT_3]]36; CHECK-NEXT: store i32 [[RED_NEXT_3]], ptr [[PTR_3]], align 437; CHECK-NEXT: [[EXITCOND_1_I_3:%.*]] = icmp eq i64 [[IV_NEXT_3]], 34438; CHECK-NEXT: br i1 [[EXITCOND_1_I_3]], label [[EXIT:%.*]], label [[FOR_LATCH_3]]39; CHECK: for.latch.3:40; CHECK-NEXT: br label [[FOR_HEADER]]41; CHECK: exit:42; CHECK-NEXT: ret i32 043;44entry:45 br label %for.header46 47for.header: ; preds = %for.body28.i.for.body28.i_crit_edge, %for.body.i48 %red = phi i32 [ 0, %entry ], [ %red.next, %for.latch ]49 %iv = phi i64 [ 0, %entry ], [ %iv.next, %for.latch ]50 %red.next = add i32 10, %red51 %iv.next = add nuw nsw i64 %iv, 252 %ptr = getelementptr inbounds [344 x i32], ptr @table, i64 0, i64 %iv.next53 store i32 %red.next, ptr %ptr, align 454 %exitcond.1.i = icmp eq i64 %iv.next, 34455 br i1 %exitcond.1.i, label %exit, label %for.latch56 57for.latch: ; preds = %for.header58 br label %for.header59 60exit:61 ret i32 062}63