1 ; Make sure this doesn't turn into an infinite loop
3 ; RUN: llvm-upgrade < %s | llvm-as | opt -simplifycfg -constprop -simplifycfg |\
4 ; RUN: llvm-dis | grep bb86
7 %struct.anon = type { uint, int, int, int, [1024 x sbyte] }
8 %_zero_ = external global %struct.anon* ; <%struct.anon**> [#uses=2]
9 %_one_ = external global %struct.anon* ; <%struct.anon**> [#uses=4]
10 %str = internal constant [4 x sbyte] c"%d\0A\00" ; <[4 x sbyte]*> [#uses=1]
12 implementation ; Functions:
15 declare int %bc_compare(%struct.anon*, %struct.anon*)
17 declare void %free_num(%struct.anon**)
19 declare %struct.anon* %copy_num(%struct.anon*)
21 declare void %init_num(%struct.anon**)
23 declare %struct.anon* %new_num(int, int)
25 declare void %int2num(%struct.anon**, int)
27 declare void %bc_multiply(%struct.anon*, %struct.anon*, %struct.anon**, int)
29 declare void %bc_raise(%struct.anon*, %struct.anon*, %struct.anon**, int)
31 declare int %bc_divide(%struct.anon*, %struct.anon*, %struct.anon**, int)
33 declare void %bc_add(%struct.anon*, %struct.anon*, %struct.anon**)
35 declare int %_do_compare(%struct.anon*, %struct.anon*, int, int)
37 declare int %printf(sbyte*, ...)
39 int %bc_sqrt(%struct.anon** %num, int %scale) {
41 %guess = alloca %struct.anon* ; <%struct.anon**> [#uses=15]
42 %guess1 = alloca %struct.anon* ; <%struct.anon**> [#uses=12]
43 %point5 = alloca %struct.anon* ; <%struct.anon**> [#uses=4]
44 %tmp = load %struct.anon** %num ; <%struct.anon*> [#uses=1]
45 %tmp1 = load %struct.anon** %_zero_ ; <%struct.anon*> [#uses=1]
46 %tmp = call int %bc_compare( %struct.anon* %tmp, %struct.anon* %tmp1 ) ; <int> [#uses=2]
47 %tmp = setlt int %tmp, 0 ; <bool> [#uses=1]
48 br bool %tmp, label %cond_true, label %cond_false
50 cond_true: ; preds = %entry
53 cond_false: ; preds = %entry
54 %tmp5 = seteq int %tmp, 0 ; <bool> [#uses=1]
55 br bool %tmp5, label %cond_true6, label %cond_next13
57 cond_true6: ; preds = %cond_false
58 call void %free_num( %struct.anon** %num )
59 %tmp8 = load %struct.anon** %_zero_ ; <%struct.anon*> [#uses=1]
60 %tmp9 = call %struct.anon* %copy_num( %struct.anon* %tmp8 ) ; <%struct.anon*> [#uses=1]
61 store %struct.anon* %tmp9, %struct.anon** %num
64 cond_next13: ; preds = %cond_false
65 %tmp15 = load %struct.anon** %num ; <%struct.anon*> [#uses=1]
66 %tmp16 = load %struct.anon** %_one_ ; <%struct.anon*> [#uses=1]
67 %tmp17 = call int %bc_compare( %struct.anon* %tmp15, %struct.anon* %tmp16 ) ; <int> [#uses=2]
68 %tmp19 = seteq int %tmp17, 0 ; <bool> [#uses=1]
69 br bool %tmp19, label %cond_true20, label %cond_next27
71 cond_true20: ; preds = %cond_next13
72 call void %free_num( %struct.anon** %num )
73 %tmp22 = load %struct.anon** %_one_ ; <%struct.anon*> [#uses=1]
74 %tmp23 = call %struct.anon* %copy_num( %struct.anon* %tmp22 ) ; <%struct.anon*> [#uses=1]
75 store %struct.anon* %tmp23, %struct.anon** %num
78 cond_next27: ; preds = %cond_next13
79 %tmp29 = load %struct.anon** %num ; <%struct.anon*> [#uses=1]
80 %tmp30 = getelementptr %struct.anon* %tmp29, int 0, uint 2 ; <int*> [#uses=1]
81 %tmp31 = load int* %tmp30 ; <int> [#uses=2]
82 %tmp33 = setge int %tmp31, %scale ; <bool> [#uses=1]
83 %max = select bool %tmp33, int %tmp31, int %scale ; <int> [#uses=4]
84 %tmp35 = add int %max, 2 ; <int> [#uses=2]
85 call void %init_num( %struct.anon** %guess )
86 call void %init_num( %struct.anon** %guess1 )
87 %tmp36 = call %struct.anon* %new_num( int 1, int 1 ) ; <%struct.anon*> [#uses=2]
88 store %struct.anon* %tmp36, %struct.anon** %point5
89 %tmp = getelementptr %struct.anon* %tmp36, int 0, uint 4, int 1 ; <sbyte*> [#uses=1]
90 store sbyte 5, sbyte* %tmp
91 %tmp39 = setlt int %tmp17, 0 ; <bool> [#uses=1]
92 br bool %tmp39, label %cond_true40, label %cond_false43
94 cond_true40: ; preds = %cond_next27
95 %tmp41 = load %struct.anon** %_one_ ; <%struct.anon*> [#uses=1]
96 %tmp42 = call %struct.anon* %copy_num( %struct.anon* %tmp41 ) ; <%struct.anon*> [#uses=1]
97 store %struct.anon* %tmp42, %struct.anon** %guess
100 cond_false43: ; preds = %cond_next27
101 call void %int2num( %struct.anon** %guess, int 10 )
102 %tmp45 = load %struct.anon** %num ; <%struct.anon*> [#uses=1]
103 %tmp46 = getelementptr %struct.anon* %tmp45, int 0, uint 1 ; <int*> [#uses=1]
104 %tmp47 = load int* %tmp46 ; <int> [#uses=1]
105 call void %int2num( %struct.anon** %guess1, int %tmp47 )
106 %tmp48 = load %struct.anon** %guess1 ; <%struct.anon*> [#uses=1]
107 %tmp49 = load %struct.anon** %point5 ; <%struct.anon*> [#uses=1]
108 call void %bc_multiply( %struct.anon* %tmp48, %struct.anon* %tmp49, %struct.anon** %guess1, int %max )
109 %tmp51 = load %struct.anon** %guess1 ; <%struct.anon*> [#uses=1]
110 %tmp52 = getelementptr %struct.anon* %tmp51, int 0, uint 2 ; <int*> [#uses=1]
111 store int 0, int* %tmp52
112 %tmp53 = load %struct.anon** %guess ; <%struct.anon*> [#uses=1]
113 %tmp54 = load %struct.anon** %guess1 ; <%struct.anon*> [#uses=1]
114 call void %bc_raise( %struct.anon* %tmp53, %struct.anon* %tmp54, %struct.anon** %guess, int %max )
117 bb80.outer: ; preds = %cond_true77, %cond_next56
118 %done.1.ph = phi int [ 1, %cond_true83 ], [0, %cond_true40], [0, %cond_false43] ; <int> [#uses=1]
121 bb80: ; preds = %bb80.outer, %cond_true83
122 %tmp82 = seteq int %done.1.ph, 0 ; <bool> [#uses=1]
123 br bool %tmp82, label %cond_true83, label %bb86
125 cond_true83: ; preds = %bb80
126 %tmp71 = call int %_do_compare( %struct.anon* null, %struct.anon* null, int 0, int 1 ) ; <int> [#uses=2]
127 %tmp76 = seteq int %tmp71, 0 ; <bool> [#uses=1]
128 br bool %tmp76, label %bb80.outer, label %bb80
130 bb86: ; preds = %bb80
131 call void %free_num( %struct.anon** %num )
132 %tmp88 = load %struct.anon** %guess ; <%struct.anon*> [#uses=1]
133 %tmp89 = load %struct.anon** %_one_ ; <%struct.anon*> [#uses=1]
134 %tmp92 = call int %bc_divide( %struct.anon* %tmp88, %struct.anon* %tmp89, %struct.anon** %num, int %max ) ; <int> [#uses=0]
135 call void %free_num( %struct.anon** %guess )
136 call void %free_num( %struct.anon** %guess1 )
137 call void %free_num( %struct.anon** %point5 )