|  | ; RUN: opt -S -licm -loop-unswitch < %s | FileCheck %s | 
|  |  | 
|  | ; This test checks for a crash.  See PR32587. | 
|  |  | 
|  | @global = external global i32 | 
|  |  | 
|  | declare i32 @f_1(i8, i32 returned) | 
|  |  | 
|  | define i32 @f_0() { | 
|  | ; CHECK-LABEL: @f_0( | 
|  | bb: | 
|  | br label %bb1 | 
|  |  | 
|  | bb1:                                              ; preds = %bb3, %bb | 
|  | %tmp = load i32, i32* @global | 
|  | %tmp2 = select i1 false, i16 1, i16 0 | 
|  | br label %bb3 | 
|  |  | 
|  | bb3:                                              ; preds = %bb3, %bb1 | 
|  | %tmp4 = phi i8 [ 0, %bb1 ], [ %tmp6, %bb3 ] | 
|  | %tmp5 = icmp eq i16 %tmp2, 0 | 
|  | %tmp6 = select i1 %tmp5, i8 %tmp4, i8 1 | 
|  | %tmp7 = tail call i32 @f_1(i8 %tmp6, i32 1) | 
|  | br i1 false, label %bb1, label %bb3 | 
|  | } |