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1; RUN: opt -loop-reduce -S < %s | FileCheck %s2;3; Indirect branch in the preheader crashes replaceCongruentIVs.4; rdar://129101415 6target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128-n8:16:32-S128"7 8; CHECK-LABEL: @test(9; CHECK: bb8:10; CHECK-NEXT: phi i811; CHECK-NEXT: phi i812; CHECK: ret void13define void @test() nounwind ssp {14bb:15 br label %bb19016 17bb8: ; preds = %bb190, %bb1118 %tmp = phi i8 [ %tmp14, %bb11 ], [ 25, %bb190 ]19 %tmp9 = phi i8 [ %tmp12, %bb11 ], [ 25, %bb190 ]20 %tmp10 = add i8 %tmp, -521 indirectbr ptr undef, [label %bb11, label %bb15]22 23bb11: ; preds = %bb824 %tmp12 = add i8 %tmp9, 125 %tmp13 = add i8 %tmp9, -1926 %tmp14 = add i8 %tmp, 127 indirectbr ptr undef, [label %bb8]28 29bb15: ; preds = %bb830 indirectbr ptr undef, [label %bb16]31 32bb16: ; preds = %bb16, %bb1533 indirectbr ptr undef, [label %bb37, label %bb190]34 35 36bb37: ; preds = %bb19037 indirectbr ptr undef, [label %bb38]38 39bb38: ; preds = %bb37, %bb540 ret void41 42bb190: ; preds = %bb189, %bb18743 indirectbr ptr undef, [label %bb37, label %bb8]44}45