1 ; RUN: llc < %s -mcpu=cyclone -verify-machineinstrs -aarch64-enable-ccmp | FileCheck %s
2 target triple = "arm64-apple-ios7.0.0"
4 @channelColumns = external global i64
5 @channelTracks = external global i64
6 @mazeRoute = external hidden unnamed_addr global ptr, align 8
7 @TOP = external global ptr
8 @BOT = external global ptr
9 @netsAssign = external global ptr
11 ; Function from yacr2/maze.c
12 ; The branch at the end of %if.then is driven by %cmp5 and %cmp6.
13 ; Isel converts the and i1 into two branches, and arm64-ccmp should not convert
14 ; it back again. %cmp6 has much higher latency than %cmp5.
17 ; CHECK: cmp x{{[0-9]+}}, #2
20 ; CHECK: cmp x{{[0-9]+}}, #2
22 define i32 @Maze1() nounwind ssp {
24 %0 = load i64, ptr @channelColumns, align 8, !tbaa !0
25 %cmp90 = icmp eq i64 %0, 0
26 br i1 %cmp90, label %for.end, label %for.body
28 for.body: ; preds = %for.inc, %entry
29 %1 = phi i64 [ %0, %entry ], [ %37, %for.inc ]
30 %i.092 = phi i64 [ 1, %entry ], [ %inc53, %for.inc ]
31 %numLeft.091 = phi i32 [ 0, %entry ], [ %numLeft.1, %for.inc ]
32 %2 = load ptr, ptr @mazeRoute, align 8, !tbaa !3
33 %arrayidx = getelementptr inbounds i8, ptr %2, i64 %i.092
34 %3 = load i8, ptr %arrayidx, align 1, !tbaa !1
35 %tobool = icmp eq i8 %3, 0
36 br i1 %tobool, label %for.inc, label %if.then
38 if.then: ; preds = %for.body
39 %4 = load ptr, ptr @TOP, align 8, !tbaa !3
40 %arrayidx1 = getelementptr inbounds i64, ptr %4, i64 %i.092
41 %5 = load i64, ptr %arrayidx1, align 8, !tbaa !0
42 %6 = load ptr, ptr @netsAssign, align 8, !tbaa !3
43 %arrayidx2 = getelementptr inbounds i64, ptr %6, i64 %5
44 %7 = load i64, ptr %arrayidx2, align 8, !tbaa !0
45 %8 = load ptr, ptr @BOT, align 8, !tbaa !3
46 %arrayidx3 = getelementptr inbounds i64, ptr %8, i64 %i.092
47 %9 = load i64, ptr %arrayidx3, align 8, !tbaa !0
48 %arrayidx4 = getelementptr inbounds i64, ptr %6, i64 %9
49 %10 = load i64, ptr %arrayidx4, align 8, !tbaa !0
50 %cmp5 = icmp ugt i64 %i.092, 1
51 %cmp6 = icmp ugt i64 %10, 1
52 %or.cond = and i1 %cmp5, %cmp6
53 br i1 %or.cond, label %land.lhs.true7, label %if.else
55 land.lhs.true7: ; preds = %if.then
56 %11 = load i64, ptr @channelTracks, align 8, !tbaa !0
58 %call = tail call fastcc i32 @Maze1Mech(i64 %i.092, i64 %add, i64 %10, i64 0, i64 %7, i32 -1, i32 -1)
59 %tobool8 = icmp eq i32 %call, 0
60 br i1 %tobool8, label %land.lhs.true7.if.else_crit_edge, label %if.then9
62 land.lhs.true7.if.else_crit_edge: ; preds = %land.lhs.true7
63 %.pre = load i64, ptr @channelColumns, align 8, !tbaa !0
66 if.then9: ; preds = %land.lhs.true7
67 %12 = load ptr, ptr @mazeRoute, align 8, !tbaa !3
68 %arrayidx10 = getelementptr inbounds i8, ptr %12, i64 %i.092
69 store i8 0, ptr %arrayidx10, align 1, !tbaa !1
70 %13 = load ptr, ptr @TOP, align 8, !tbaa !3
71 %arrayidx11 = getelementptr inbounds i64, ptr %13, i64 %i.092
72 %14 = load i64, ptr %arrayidx11, align 8, !tbaa !0
73 tail call fastcc void @CleanNet(i64 %14)
74 %15 = load ptr, ptr @BOT, align 8, !tbaa !3
75 %arrayidx12 = getelementptr inbounds i64, ptr %15, i64 %i.092
76 %16 = load i64, ptr %arrayidx12, align 8, !tbaa !0
77 tail call fastcc void @CleanNet(i64 %16)
80 if.else: ; preds = %land.lhs.true7.if.else_crit_edge, %if.then
81 %17 = phi i64 [ %.pre, %land.lhs.true7.if.else_crit_edge ], [ %1, %if.then ]
82 %cmp13 = icmp ult i64 %i.092, %17
83 %or.cond89 = and i1 %cmp13, %cmp6
84 br i1 %or.cond89, label %land.lhs.true16, label %if.else24
86 land.lhs.true16: ; preds = %if.else
87 %18 = load i64, ptr @channelTracks, align 8, !tbaa !0
88 %add17 = add i64 %18, 1
89 %call18 = tail call fastcc i32 @Maze1Mech(i64 %i.092, i64 %add17, i64 %10, i64 0, i64 %7, i32 1, i32 -1)
90 %tobool19 = icmp eq i32 %call18, 0
91 br i1 %tobool19, label %if.else24, label %if.then20
93 if.then20: ; preds = %land.lhs.true16
94 %19 = load ptr, ptr @mazeRoute, align 8, !tbaa !3
95 %arrayidx21 = getelementptr inbounds i8, ptr %19, i64 %i.092
96 store i8 0, ptr %arrayidx21, align 1, !tbaa !1
97 %20 = load ptr, ptr @TOP, align 8, !tbaa !3
98 %arrayidx22 = getelementptr inbounds i64, ptr %20, i64 %i.092
99 %21 = load i64, ptr %arrayidx22, align 8, !tbaa !0
100 tail call fastcc void @CleanNet(i64 %21)
101 %22 = load ptr, ptr @BOT, align 8, !tbaa !3
102 %arrayidx23 = getelementptr inbounds i64, ptr %22, i64 %i.092
103 %23 = load i64, ptr %arrayidx23, align 8, !tbaa !0
104 tail call fastcc void @CleanNet(i64 %23)
107 if.else24: ; preds = %land.lhs.true16, %if.else
108 br i1 %cmp5, label %land.lhs.true26, label %if.else36
110 land.lhs.true26: ; preds = %if.else24
111 %24 = load i64, ptr @channelTracks, align 8, !tbaa !0
112 %cmp27 = icmp ult i64 %7, %24
113 br i1 %cmp27, label %land.lhs.true28, label %if.else36
115 land.lhs.true28: ; preds = %land.lhs.true26
116 %add29 = add i64 %24, 1
117 %call30 = tail call fastcc i32 @Maze1Mech(i64 %i.092, i64 0, i64 %7, i64 %add29, i64 %10, i32 -1, i32 1)
118 %tobool31 = icmp eq i32 %call30, 0
119 br i1 %tobool31, label %if.else36, label %if.then32
121 if.then32: ; preds = %land.lhs.true28
122 %25 = load ptr, ptr @mazeRoute, align 8, !tbaa !3
123 %arrayidx33 = getelementptr inbounds i8, ptr %25, i64 %i.092
124 store i8 0, ptr %arrayidx33, align 1, !tbaa !1
125 %26 = load ptr, ptr @TOP, align 8, !tbaa !3
126 %arrayidx34 = getelementptr inbounds i64, ptr %26, i64 %i.092
127 %27 = load i64, ptr %arrayidx34, align 8, !tbaa !0
128 tail call fastcc void @CleanNet(i64 %27)
129 %28 = load ptr, ptr @BOT, align 8, !tbaa !3
130 %arrayidx35 = getelementptr inbounds i64, ptr %28, i64 %i.092
131 %29 = load i64, ptr %arrayidx35, align 8, !tbaa !0
132 tail call fastcc void @CleanNet(i64 %29)
135 if.else36: ; preds = %land.lhs.true28, %land.lhs.true26, %if.else24
136 %30 = load i64, ptr @channelColumns, align 8, !tbaa !0
137 %cmp37 = icmp ult i64 %i.092, %30
138 br i1 %cmp37, label %land.lhs.true38, label %if.else48
140 land.lhs.true38: ; preds = %if.else36
141 %31 = load i64, ptr @channelTracks, align 8, !tbaa !0
142 %cmp39 = icmp ult i64 %7, %31
143 br i1 %cmp39, label %land.lhs.true40, label %if.else48
145 land.lhs.true40: ; preds = %land.lhs.true38
146 %add41 = add i64 %31, 1
147 %call42 = tail call fastcc i32 @Maze1Mech(i64 %i.092, i64 0, i64 %7, i64 %add41, i64 %10, i32 1, i32 1)
148 %tobool43 = icmp eq i32 %call42, 0
149 br i1 %tobool43, label %if.else48, label %if.then44
151 if.then44: ; preds = %land.lhs.true40
152 %32 = load ptr, ptr @mazeRoute, align 8, !tbaa !3
153 %arrayidx45 = getelementptr inbounds i8, ptr %32, i64 %i.092
154 store i8 0, ptr %arrayidx45, align 1, !tbaa !1
155 %33 = load ptr, ptr @TOP, align 8, !tbaa !3
156 %arrayidx46 = getelementptr inbounds i64, ptr %33, i64 %i.092
157 %34 = load i64, ptr %arrayidx46, align 8, !tbaa !0
158 tail call fastcc void @CleanNet(i64 %34)
159 %35 = load ptr, ptr @BOT, align 8, !tbaa !3
160 %arrayidx47 = getelementptr inbounds i64, ptr %35, i64 %i.092
161 %36 = load i64, ptr %arrayidx47, align 8, !tbaa !0
162 tail call fastcc void @CleanNet(i64 %36)
165 if.else48: ; preds = %land.lhs.true40, %land.lhs.true38, %if.else36
166 %inc = add nsw i32 %numLeft.091, 1
169 for.inc: ; preds = %if.else48, %if.then44, %if.then32, %if.then20, %if.then9, %for.body
170 %numLeft.1 = phi i32 [ %numLeft.091, %if.then9 ], [ %numLeft.091, %if.then20 ], [ %numLeft.091, %if.then32 ], [ %numLeft.091, %if.then44 ], [ %inc, %if.else48 ], [ %numLeft.091, %for.body ]
171 %inc53 = add i64 %i.092, 1
172 %37 = load i64, ptr @channelColumns, align 8, !tbaa !0
173 %cmp = icmp ugt i64 %inc53, %37
174 br i1 %cmp, label %for.end, label %for.body
176 for.end: ; preds = %for.inc, %entry
177 %numLeft.0.lcssa = phi i32 [ 0, %entry ], [ %numLeft.1, %for.inc ]
178 ret i32 %numLeft.0.lcssa
182 declare hidden fastcc i32 @Maze1Mech(i64, i64, i64, i64, i64, i32, i32) nounwind ssp
185 declare hidden fastcc void @CleanNet(i64) nounwind ssp
188 !1 = !{!"omnipotent char", !2}
189 !2 = !{!"Simple C/C++ TBAA"}
190 !3 = !{!"any pointer", !1}