| ; PR957 | 
 | ; RUN: opt < %s -simplifycfg -simplifycfg-require-and-preserve-domtree=1 -S | FileCheck %s | 
 |  | 
 | ; CHECK-NOT: select | 
 |  | 
 | @G = extern_weak global i32 | 
 |  | 
 | define i32 @test(i32 %tmp) { | 
 | cond_false179: | 
 | 	%tmp181 = icmp eq i32 %tmp, 0		; <i1> [#uses=1] | 
 | 	br i1 %tmp181, label %cond_true182, label %cond_next185 | 
 | cond_true182:		; preds = %cond_false179 | 
 | 	br label %cond_next185 | 
 | cond_next185:		; preds = %cond_true182, %cond_false179 | 
 | 	%d0.3 = phi i32 [ udiv (i32 1, i32 ptrtoint (i32* @G to i32)), %cond_true182 ], [ %tmp, %cond_false179 ]		; <i32> [#uses=1] | 
 | 	ret i32 %d0.3 | 
 | } | 
 |  | 
 | define i32 @test2(i32 %tmp) { | 
 | cond_false179: | 
 | 	%tmp181 = icmp eq i32 %tmp, 0		; <i1> [#uses=1] | 
 | 	br i1 %tmp181, label %cond_true182, label %cond_next185 | 
 | cond_true182:		; preds = %cond_false179 | 
 | 	br label %cond_next185 | 
 | cond_next185:		; preds = %cond_true182, %cond_false179 | 
 | 	%d0.3 = phi i32 [ udiv (i32 1, i32 ptrtoint (i32* @G to i32)), %cond_true182 ], [ %tmp, %cond_false179 ]		; <i32> [#uses=1] | 
 | 	call i32 @test( i32 4 )		; <i32>:0 [#uses=0] | 
 | 	ret i32 %d0.3 | 
 | } |