1*9880d681SAndroid Build Coastguard Worker; RUN: opt -loop-reduce -verify < %s 2*9880d681SAndroid Build Coastguard Worker 3*9880d681SAndroid Build Coastguard Workertarget datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" 4*9880d681SAndroid Build Coastguard Workertarget triple = "x86_64--linux-gnu" 5*9880d681SAndroid Build Coastguard Worker 6*9880d681SAndroid Build Coastguard Workerdefine void @unbounded() { 7*9880d681SAndroid Build Coastguard Worker 8*9880d681SAndroid Build Coastguard Workerblock_A: 9*9880d681SAndroid Build Coastguard Worker %0 = sext i32 undef to i64 10*9880d681SAndroid Build Coastguard Worker br i1 undef, label %block_F, label %block_G 11*9880d681SAndroid Build Coastguard Worker 12*9880d681SAndroid Build Coastguard Workerblock_C: ; preds = %block_F 13*9880d681SAndroid Build Coastguard Worker br i1 undef, label %block_D, label %block_E 14*9880d681SAndroid Build Coastguard Worker 15*9880d681SAndroid Build Coastguard Workerblock_D: ; preds = %block_D, %block_C 16*9880d681SAndroid Build Coastguard Worker br i1 undef, label %block_E, label %block_D 17*9880d681SAndroid Build Coastguard Worker 18*9880d681SAndroid Build Coastguard Workerblock_E: ; preds = %block_D, %block_C 19*9880d681SAndroid Build Coastguard Worker %iv2 = phi i64 [ %4, %block_D ], [ %4, %block_C ] 20*9880d681SAndroid Build Coastguard Worker %1 = add nsw i32 %iv1, 1 21*9880d681SAndroid Build Coastguard Worker %2 = icmp eq i32 %1, undef 22*9880d681SAndroid Build Coastguard Worker br i1 %2, label %block_G, label %block_F 23*9880d681SAndroid Build Coastguard Worker 24*9880d681SAndroid Build Coastguard Workerblock_F: ; preds = %block_E, %block_A 25*9880d681SAndroid Build Coastguard Worker %iv3 = phi i64 [ %iv2, %block_E ], [ %0, %block_A ] 26*9880d681SAndroid Build Coastguard Worker %iv1 = phi i32 [ %1, %block_E ], [ undef, %block_A ] 27*9880d681SAndroid Build Coastguard Worker %3 = add nsw i64 %iv3, 2 28*9880d681SAndroid Build Coastguard Worker %4 = add nsw i64 %iv3, 1 29*9880d681SAndroid Build Coastguard Worker br label %block_C 30*9880d681SAndroid Build Coastguard Worker 31*9880d681SAndroid Build Coastguard Workerblock_G: ; preds = %block_E, %block_A 32*9880d681SAndroid Build Coastguard Worker ret void 33*9880d681SAndroid Build Coastguard Worker} 34