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      1 ; RUN: opt < %s -simplifycfg -S | not grep br
      2 ; END.
      3 
      4         %llvm.dbg.anchor.type = type { i32, i32 }
      5         %llvm.dbg.compile_unit.type = type { i32, { }*, i32, i8*, i8*, i8*, i1, i1, i8* }
      6 
      7 @llvm.dbg.compile_units = linkonce constant %llvm.dbg.anchor.type { i32 458752, i32 17 }, section "llvm.metadata"
      8 
      9 @.str = internal constant [4 x i8] c"a.c\00", section "llvm.metadata"		; <[4 x i8]*> [#uses=1]
     10 @.str1 = internal constant [6 x i8] c"/tmp/\00", section "llvm.metadata"	; <[6 x i8]*> [#uses=1]
     11 @.str2 = internal constant [55 x i8] c"4.2.1 (Based on Apple Inc. build 5636) (LLVM build 00)\00", section "llvm.metadata"		; <[55 x i8]*> [#uses=1]
     12 @llvm.dbg.compile_unit = internal constant %llvm.dbg.compile_unit.type { i32 458769, { }* bitcast (%llvm.dbg.anchor.type* @llvm.dbg.compile_units to { }*), i32 1, i8* getelementptr ([4 x i8]* @.str, i32 0, i32 0), i8* getelementptr ([6 x i8]* @.str1, i32 0, i32 0), i8* getelementptr ([55 x i8]* @.str2, i32 0, i32 0), i1 true, i1 false, i8* null }, section "llvm.metadata"		; <%llvm.dbg.compile_unit.type*> [#uses=1]
     13 
     14 declare void @llvm.dbg.stoppoint(i32, i32, { }*) nounwind
     15 
     16 
     17 define void @main() {
     18 entry:
     19 call void @llvm.dbg.stoppoint(i32 5, i32 0, { }* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to { }*))
     20 	%tmp.14.i19 = icmp eq i32 0, 2		; <i1> [#uses=1]
     21 call void @llvm.dbg.stoppoint(i32 5, i32 0, { }* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to { }*))
     22 	br i1 %tmp.14.i19, label %endif.1.i20, label %read_min.exit
     23 endif.1.i20:		; preds = %entry
     24 call void @llvm.dbg.stoppoint(i32 5, i32 0, { }* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to { }*))
     25 	%tmp.9.i.i = icmp eq i8* null, null		; <i1> [#uses=1]
     26 call void @llvm.dbg.stoppoint(i32 5, i32 0, { }* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to { }*))
     27 	br i1 %tmp.9.i.i, label %then.i12.i, label %then.i.i
     28 then.i.i:		; preds = %endif.1.i20
     29 call void @llvm.dbg.stoppoint(i32 5, i32 0, { }* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to { }*))
     30 	ret void
     31 then.i12.i:		; preds = %endif.1.i20
     32 call void @llvm.dbg.stoppoint(i32 5, i32 0, { }* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to { }*))
     33 	%tmp.9.i4.i = icmp eq i8* null, null		; <i1> [#uses=1]
     34 call void @llvm.dbg.stoppoint(i32 5, i32 0, { }* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to { }*))
     35 	br i1 %tmp.9.i4.i, label %endif.2.i33, label %then.i5.i
     36 then.i5.i:		; preds = %then.i12.i
     37 call void @llvm.dbg.stoppoint(i32 5, i32 0, { }* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to { }*))
     38 	ret void
     39 endif.2.i33:		; preds = %then.i12.i
     40 call void @llvm.dbg.stoppoint(i32 5, i32 0, { }* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to { }*))
     41 	br i1 false, label %loopexit.0.i40, label %no_exit.0.i35
     42 no_exit.0.i35:		; preds = %no_exit.0.i35, %endif.2.i33
     43 call void @llvm.dbg.stoppoint(i32 5, i32 0, { }* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to { }*))
     44 	%tmp.130.i = icmp slt i32 0, 0		; <i1> [#uses=1]
     45 call void @llvm.dbg.stoppoint(i32 5, i32 0, { }* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to { }*))
     46 	br i1 %tmp.130.i, label %loopexit.0.i40.loopexit, label %no_exit.0.i35
     47 loopexit.0.i40.loopexit:		; preds = %no_exit.0.i35
     48 call void @llvm.dbg.stoppoint(i32 5, i32 0, { }* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to { }*))
     49 	br label %loopexit.0.i40
     50 loopexit.0.i40:		; preds = %loopexit.0.i40.loopexit, %endif.2.i33
     51 call void @llvm.dbg.stoppoint(i32 5, i32 0, { }* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to { }*))
     52 	%tmp.341.i = icmp eq i32 0, 0		; <i1> [#uses=1]
     53 call void @llvm.dbg.stoppoint(i32 5, i32 0, { }* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to { }*))
     54 	br i1 %tmp.341.i, label %loopentry.1.i, label %read_min.exit
     55 loopentry.1.i:		; preds = %loopexit.0.i40
     56 call void @llvm.dbg.stoppoint(i32 5, i32 0, { }* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to { }*))
     57 	%tmp.347.i = icmp sgt i32 0, 0		; <i1> [#uses=1]
     58 call void @llvm.dbg.stoppoint(i32 5, i32 0, { }* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to { }*))
     59 	br i1 %tmp.347.i, label %no_exit.1.i41, label %loopexit.2.i44
     60 no_exit.1.i41:		; preds = %endif.5.i, %loopentry.1.i
     61 	%indvar.i42 = phi i32 [ %indvar.next.i, %endif.5.i ], [ 0, %loopentry.1.i ]		; <i32> [#uses=1]
     62 call void @llvm.dbg.stoppoint(i32 5, i32 0, { }* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to { }*))
     63 	%tmp.355.i = icmp eq i32 0, 3		; <i1> [#uses=1]
     64 call void @llvm.dbg.stoppoint(i32 5, i32 0, { }* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to { }*))
     65 	br i1 %tmp.355.i, label %endif.5.i, label %read_min.exit
     66 endif.5.i:		; preds = %no_exit.1.i41
     67 call void @llvm.dbg.stoppoint(i32 5, i32 0, { }* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to { }*))
     68 	%tmp.34773.i = icmp sgt i32 0, 0		; <i1> [#uses=1]
     69 call void @llvm.dbg.stoppoint(i32 5, i32 0, { }* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to { }*))
     70 	%indvar.next.i = add i32 %indvar.i42, 1		; <i32> [#uses=1]
     71 call void @llvm.dbg.stoppoint(i32 5, i32 0, { }* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to { }*))
     72 	br i1 %tmp.34773.i, label %no_exit.1.i41, label %loopexit.1.i.loopexit
     73 loopexit.1.i.loopexit:		; preds = %endif.5.i
     74 call void @llvm.dbg.stoppoint(i32 5, i32 0, { }* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to { }*))
     75 	ret void
     76 loopexit.2.i44:		; preds = %loopentry.1.i
     77 call void @llvm.dbg.stoppoint(i32 5, i32 0, { }* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to { }*))
     78 	ret void
     79 read_min.exit:		; preds = %no_exit.1.i41, %loopexit.0.i40, %entry
     80 call void @llvm.dbg.stoppoint(i32 5, i32 0, { }* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to { }*))
     81 	%tmp.23 = icmp eq i32 0, 0		; <i1> [#uses=1]
     82 call void @llvm.dbg.stoppoint(i32 5, i32 0, { }* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to { }*))
     83 	br i1 %tmp.23, label %endif.1, label %then.1
     84 then.1:		; preds = %read_min.exit
     85 call void @llvm.dbg.stoppoint(i32 5, i32 0, { }* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to { }*))
     86 	br i1 false, label %endif.0.i, label %then.0.i
     87 then.0.i:		; preds = %then.1
     88 call void @llvm.dbg.stoppoint(i32 5, i32 0, { }* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to { }*))
     89 	br i1 false, label %endif.1.i, label %then.1.i
     90 endif.0.i:		; preds = %then.1
     91 call void @llvm.dbg.stoppoint(i32 5, i32 0, { }* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to { }*))
     92 	br i1 false, label %endif.1.i, label %then.1.i
     93 then.1.i:		; preds = %endif.0.i, %then.0.i
     94 call void @llvm.dbg.stoppoint(i32 5, i32 0, { }* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to { }*))
     95 	br i1 false, label %getfree.exit, label %then.2.i
     96 endif.1.i:		; preds = %endif.0.i, %then.0.i
     97 call void @llvm.dbg.stoppoint(i32 5, i32 0, { }* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to { }*))
     98 	br i1 false, label %getfree.exit, label %then.2.i
     99 then.2.i:		; preds = %endif.1.i, %then.1.i
    100 call void @llvm.dbg.stoppoint(i32 5, i32 0, { }* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to { }*))
    101 	ret void
    102 getfree.exit:		; preds = %endif.1.i, %then.1.i
    103 call void @llvm.dbg.stoppoint(i32 5, i32 0, { }* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to { }*))
    104 	ret void
    105 endif.1:		; preds = %read_min.exit
    106 call void @llvm.dbg.stoppoint(i32 5, i32 0, { }* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to { }*))
    107 	%tmp.27.i = getelementptr i32* null, i32 0		; <i32*> [#uses=0]
    108 call void @llvm.dbg.stoppoint(i32 5, i32 0, { }* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to { }*))
    109 	br i1 false, label %loopexit.0.i15, label %no_exit.0.i14
    110 no_exit.0.i14:		; preds = %endif.1
    111 call void @llvm.dbg.stoppoint(i32 5, i32 0, { }* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to { }*))
    112 	ret void
    113 loopexit.0.i15:		; preds = %endif.1
    114 call void @llvm.dbg.stoppoint(i32 5, i32 0, { }* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to { }*))
    115 	br i1 false, label %primal_start_artificial.exit, label %no_exit.1.i16
    116 no_exit.1.i16:		; preds = %no_exit.1.i16, %loopexit.0.i15
    117 call void @llvm.dbg.stoppoint(i32 5, i32 0, { }* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to { }*))
    118 	br i1 false, label %primal_start_artificial.exit, label %no_exit.1.i16
    119 primal_start_artificial.exit:		; preds = %no_exit.1.i16, %loopexit.0.i15
    120 call void @llvm.dbg.stoppoint(i32 5, i32 0, { }* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to { }*))
    121 	ret void
    122 }
    123