1*9880d681SAndroid Build Coastguard Worker; RUN: opt -loop-reduce -S < %s | FileCheck %s 2*9880d681SAndroid Build Coastguard Worker; 3*9880d681SAndroid Build Coastguard Worker; Indirect branch in the preheader crashes replaceCongruentIVs. 4*9880d681SAndroid Build Coastguard Worker; rdar://12910141 5*9880d681SAndroid Build Coastguard Worker 6*9880d681SAndroid Build Coastguard Workertarget 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*9880d681SAndroid Build Coastguard Worker 8*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: @test( 9*9880d681SAndroid Build Coastguard Worker; CHECK: bb8: 10*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: phi i8 11*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: phi i8 12*9880d681SAndroid Build Coastguard Worker; CHECK: ret void 13*9880d681SAndroid Build Coastguard Workerdefine void @test() nounwind ssp { 14*9880d681SAndroid Build Coastguard Workerbb: 15*9880d681SAndroid Build Coastguard Worker br label %bb190 16*9880d681SAndroid Build Coastguard Worker 17*9880d681SAndroid Build Coastguard Workerbb8: ; preds = %bb190, %bb11 18*9880d681SAndroid Build Coastguard Worker %tmp = phi i8 [ %tmp14, %bb11 ], [ 25, %bb190 ] 19*9880d681SAndroid Build Coastguard Worker %tmp9 = phi i8 [ %tmp12, %bb11 ], [ 25, %bb190 ] 20*9880d681SAndroid Build Coastguard Worker %tmp10 = add i8 %tmp, -5 21*9880d681SAndroid Build Coastguard Worker indirectbr i8* undef, [label %bb11, label %bb15] 22*9880d681SAndroid Build Coastguard Worker 23*9880d681SAndroid Build Coastguard Workerbb11: ; preds = %bb8 24*9880d681SAndroid Build Coastguard Worker %tmp12 = add i8 %tmp9, 1 25*9880d681SAndroid Build Coastguard Worker %tmp13 = add i8 %tmp9, -19 26*9880d681SAndroid Build Coastguard Worker %tmp14 = add i8 %tmp, 1 27*9880d681SAndroid Build Coastguard Worker indirectbr i8* undef, [label %bb8] 28*9880d681SAndroid Build Coastguard Worker 29*9880d681SAndroid Build Coastguard Workerbb15: ; preds = %bb8 30*9880d681SAndroid Build Coastguard Worker indirectbr i8* undef, [label %bb16] 31*9880d681SAndroid Build Coastguard Worker 32*9880d681SAndroid Build Coastguard Workerbb16: ; preds = %bb16, %bb15 33*9880d681SAndroid Build Coastguard Worker indirectbr i8* undef, [label %bb37, label %bb190] 34*9880d681SAndroid Build Coastguard Worker 35*9880d681SAndroid Build Coastguard Worker 36*9880d681SAndroid Build Coastguard Workerbb37: ; preds = %bb190 37*9880d681SAndroid Build Coastguard Worker indirectbr i8* undef, [label %bb38] 38*9880d681SAndroid Build Coastguard Worker 39*9880d681SAndroid Build Coastguard Workerbb38: ; preds = %bb37, %bb5 40*9880d681SAndroid Build Coastguard Worker ret void 41*9880d681SAndroid Build Coastguard Worker 42*9880d681SAndroid Build Coastguard Workerbb190: ; preds = %bb189, %bb187 43*9880d681SAndroid Build Coastguard Worker indirectbr i8* undef, [label %bb37, label %bb8] 44*9880d681SAndroid Build Coastguard Worker} 45