1 ; RUN: llc %s -o - -verify-machineinstrs | FileCheck %s
3 target datalayout = "e-m:o-p:32:32-f64:32:64-v64:32:64-v128:32:128-a:0:32-n32-S32"
4 target triple = "thumbv7s-apple-ios8.0.0"
6 %struct.cells = type { i32, i32, %struct.cells* }
8 @reg_len = external global i32, align 4
10 ; The thumb2 size reduction pass commutes arguments to make the first src of an add the same as the dest.
11 ; It needs to also move the internal flag when commuting arguments.
13 ; CHECK-LABEL: @simulate
15 ; Function Attrs: nounwind optsize ssp
16 define i32 @simulate(i32 %iterations, %struct.cells* nocapture %present, double %prob, i8* nocapture readonly %structure) {
18 %0 = load i32, i32* @reg_len, align 4, !tbaa !3
19 %sub = add nsw i32 %0, -1
20 %div = sdiv i32 %sub, 31
21 %rem2 = srem i32 %sub, 31
22 %cmp35202 = icmp sgt i32 %rem2, 0
23 br label %for.cond3.preheader
25 for.cond3.preheader: ; preds = %if.end85, %entry
26 %call192 = tail call i32 @lrand48() #2
27 br label %for.cond6.preheader
29 for.cond34.preheader: ; preds = %for.inc30
30 br i1 %cmp35202, label %for.body37, label %for.end73
32 for.cond6.preheader: ; preds = %for.inc30, %for.cond3.preheader
33 %call197 = phi i32 [ %call, %for.inc30 ], [ %call192, %for.cond3.preheader ]
34 %i.0196 = phi i32 [ %inc31, %for.inc30 ], [ 0, %for.cond3.preheader ]
35 %temp.1195 = phi %struct.cells* [ %5, %for.inc30 ], [ %present, %for.cond3.preheader ]
36 %savefaulty.0194 = phi i32 [ %add12, %for.inc30 ], [ 0, %for.cond3.preheader ]
37 %savef_free.0193 = phi i32 [ %add11, %for.inc30 ], [ 0, %for.cond3.preheader ]
40 for.body8: ; preds = %for.body8, %for.cond6.preheader
41 %randv.0190 = phi i32 [ %call197, %for.cond6.preheader ], [ %shr, %for.body8 ]
42 %j.0189 = phi i32 [ 0, %for.cond6.preheader ], [ %inc, %for.body8 ]
43 %temp.2188 = phi %struct.cells* [ %temp.1195, %for.cond6.preheader ], [ %5, %for.body8 ]
44 %savefaulty.1187 = phi i32 [ %savefaulty.0194, %for.cond6.preheader ], [ %add12, %for.body8 ]
45 %savef_free.1186 = phi i32 [ %savef_free.0193, %for.cond6.preheader ], [ %add11, %for.body8 ]
46 %f_free = getelementptr inbounds %struct.cells, %struct.cells* %temp.2188, i32 0, i32 0
47 %1 = load i32, i32* %f_free, align 4, !tbaa !7
48 %add11 = add nsw i32 %1, %savef_free.1186
49 %faulty = getelementptr inbounds %struct.cells, %struct.cells* %temp.2188, i32 0, i32 1
50 %2 = load i32, i32* %faulty, align 4, !tbaa !10
51 %add12 = add nsw i32 %2, %savefaulty.1187
52 %next = getelementptr inbounds %struct.cells, %struct.cells* %temp.2188, i32 0, i32 2
53 %3 = load %struct.cells*, %struct.cells** %next, align 4, !tbaa !11
54 %f_free13 = getelementptr inbounds %struct.cells, %struct.cells* %3, i32 0, i32 0
55 %4 = load i32, i32* %f_free13, align 4, !tbaa !7
56 %add14 = add nsw i32 %4, %randv.0190
57 %and = and i32 %add14, 1
58 store i32 %and, i32* %f_free, align 4, !tbaa !7
59 %call16 = tail call i32 @lrand48() #2
60 %rem17 = srem i32 %call16, 1000
61 %conv18 = sitofp i32 %rem17 to double
62 %div19 = fdiv double %conv18, 1.000000e+03
63 %cmp20 = fcmp olt double %div19, %prob
64 %xor = zext i1 %cmp20 to i32
65 %randv.1 = xor i32 %xor, %randv.0190
66 %5 = load %struct.cells*, %struct.cells** %next, align 4, !tbaa !11
67 %faulty25 = getelementptr inbounds %struct.cells, %struct.cells* %5, i32 0, i32 1
68 %6 = load i32, i32* %faulty25, align 4, !tbaa !10
69 %add26 = add nsw i32 %randv.1, %6
70 %and27 = and i32 %add26, 1
71 store i32 %and27, i32* %faulty, align 4, !tbaa !10
72 %shr = ashr i32 %randv.0190, 1
73 %inc = add nuw nsw i32 %j.0189, 1
74 %exitcond = icmp eq i32 %inc, 31
75 br i1 %exitcond, label %for.inc30, label %for.body8
77 for.inc30: ; preds = %for.body8
78 %inc31 = add nuw nsw i32 %i.0196, 1
79 %cmp4 = icmp slt i32 %inc31, %div
80 %call = tail call i32 @lrand48() #2
81 br i1 %cmp4, label %for.cond6.preheader, label %for.cond34.preheader
83 for.body37: ; preds = %for.body37, %for.cond34.preheader
84 %randv.2207 = phi i32 [ %shr70, %for.body37 ], [ %call, %for.cond34.preheader ]
85 %temp.3205 = phi %struct.cells* [ %9, %for.body37 ], [ %5, %for.cond34.preheader ]
86 %f_free45 = getelementptr inbounds %struct.cells, %struct.cells* %temp.3205, i32 0, i32 0
87 %.pre220 = getelementptr inbounds %struct.cells, %struct.cells* %temp.3205, i32 0, i32 1
88 %next50 = getelementptr inbounds %struct.cells, %struct.cells* %temp.3205, i32 0, i32 2
89 %7 = load %struct.cells*, %struct.cells** %next50, align 4, !tbaa !11
90 %f_free51 = getelementptr inbounds %struct.cells, %struct.cells* %7, i32 0, i32 0
91 %8 = load i32, i32* %f_free51, align 4, !tbaa !7
92 %add52 = add nsw i32 %8, %randv.2207
93 %and53 = and i32 %add52, 1
94 store i32 %and53, i32* %f_free45, align 4, !tbaa !7
95 %call55 = tail call i32 @lrand48() #2
96 %rem56 = srem i32 %call55, 1000
97 %conv57 = sitofp i32 %rem56 to double
98 %div58 = fdiv double %conv57, 1.000000e+03
99 %cmp59 = fcmp olt double %div58, %prob
100 %xor62 = zext i1 %cmp59 to i32
101 %randv.3 = xor i32 %xor62, %randv.2207
102 %9 = load %struct.cells*, %struct.cells** %next50, align 4, !tbaa !11
103 %faulty65 = getelementptr inbounds %struct.cells, %struct.cells* %9, i32 0, i32 1
104 %10 = load i32, i32* %faulty65, align 4, !tbaa !10
105 %add66 = add nsw i32 %randv.3, %10
106 %and67 = and i32 %add66, 1
107 store i32 %and67, i32* %.pre220, align 4, !tbaa !10
108 %shr70 = ashr i32 %randv.2207, 1
111 for.end73: ; preds = %for.cond34.preheader
112 %call74 = tail call i32 @lrand48() #2
113 %11 = load i32, i32* @reg_len, align 4, !tbaa !3
114 %sub75 = add nsw i32 %11, -1
115 %arrayidx76 = getelementptr inbounds i8, i8* %structure, i32 %sub75
116 %12 = load i8, i8* %arrayidx76, align 1, !tbaa !12
117 %cmp78 = icmp eq i8 %12, 49
118 %f_free81 = getelementptr inbounds %struct.cells, %struct.cells* %5, i32 0, i32 0
119 br i1 %cmp78, label %if.then80, label %for.end73.if.end85_crit_edge
121 for.end73.if.end85_crit_edge: ; preds = %for.end73
122 %.pre222 = getelementptr inbounds %struct.cells, %struct.cells* %5, i32 0, i32 1
125 if.then80: ; preds = %for.end73
126 %13 = load i32, i32* %f_free81, align 4, !tbaa !7
127 %add82 = add nsw i32 %13, %add11
128 %faulty83 = getelementptr inbounds %struct.cells, %struct.cells* %5, i32 0, i32 1
129 %14 = load i32, i32* %faulty83, align 4, !tbaa !10
130 %add84 = add nsw i32 %14, %add12
133 if.end85: ; preds = %if.then80, %for.end73.if.end85_crit_edge
134 %faulty100.pre-phi = phi i32* [ %.pre222, %for.end73.if.end85_crit_edge ], [ %faulty83, %if.then80 ]
135 %savef_free.5 = phi i32 [ %add11, %for.end73.if.end85_crit_edge ], [ %add82, %if.then80 ]
136 %savefaulty.5 = phi i32 [ %add12, %for.end73.if.end85_crit_edge ], [ %add84, %if.then80 ]
137 %add86 = add nsw i32 %savef_free.5, %call74
138 %and87 = and i32 %add86, 1
139 store i32 %and87, i32* %f_free81, align 4, !tbaa !7
140 %call89 = tail call i32 @lrand48() #2
141 %rem90 = srem i32 %call89, 10000
142 %conv91 = sitofp i32 %rem90 to double
143 %div92 = fdiv double %conv91, 1.000000e+04
144 %cmp93 = fcmp olt double %div92, %prob
145 %xor96 = zext i1 %cmp93 to i32
146 %randv.4 = xor i32 %xor96, %call74
147 %add98 = add nsw i32 %randv.4, %savefaulty.5
148 %and99 = and i32 %add98, 1
149 store i32 %and99, i32* %faulty100.pre-phi, align 4, !tbaa !10
150 br label %for.cond3.preheader
153 ; Function Attrs: optsize
154 declare i32 @lrand48()
156 attributes #2 = { nounwind optsize }
158 !llvm.module.flags = !{!0, !1}
161 !0 = !{i32 1, !"wchar_size", i32 4}
162 !1 = !{i32 1, !"min_enum_size", i32 4}
163 !2 = !{!"clang version 3.7.0 (trunk 236243)"}
164 !3 = !{!4, !4, i64 0}
165 !4 = !{!"int", !5, i64 0}
166 !5 = !{!"omnipotent char", !6, i64 0}
167 !6 = !{!"Simple C/C++ TBAA"}
168 !7 = !{!8, !4, i64 0}
169 !8 = !{!"cells", !4, i64 0, !4, i64 4, !9, i64 8}
170 !9 = !{!"any pointer", !5, i64 0}
171 !10 = !{!8, !4, i64 4}
172 !11 = !{!8, !9, i64 8}
173 !12 = !{!5, !5, i64 0}