1 ; RUN: opt -insert-edge-profiling -o %t1 < %s
2 ; RUN: rm -f %t1.prof_data
3 ; RUN: lli %defaultjit -load %llvmshlibdir/libprofile_rt%shlibext %t1 \
4 ; RUN: -llvmprof-output %t1.prof_data
5 ; RUN: opt -profile-file %t1.prof_data -profile-metadata-loader -S -o - < %s \
7 ; RUN: rm -f %t1.prof_data
9 ; FIXME: profile_rt.dll could be built on win32.
10 ; REQUIRES: loadable_module
12 ;; func_for - Test branch probabilities for a vanilla for loop.
13 define i32 @func_for(i32 %N) nounwind uwtable {
15 %N.addr = alloca i32, align 4
16 %ret = alloca i32, align 4
17 %loop = alloca i32, align 4
18 store i32 %N, i32* %N.addr, align 4
19 store i32 0, i32* %ret, align 4
20 store i32 0, i32* %loop, align 4
24 %0 = load i32* %loop, align 4
25 %1 = load i32* %N.addr, align 4
26 %cmp = icmp slt i32 %0, %1
27 br i1 %cmp, label %for.body, label %for.end
28 ; CHECK: br i1 %cmp, label %for.body, label %for.end, !prof !0
31 %2 = load i32* %N.addr, align 4
32 %3 = load i32* %ret, align 4
33 %add = add nsw i32 %3, %2
34 store i32 %add, i32* %ret, align 4
38 %4 = load i32* %loop, align 4
39 %inc = add nsw i32 %4, 1
40 store i32 %inc, i32* %loop, align 4
44 %5 = load i32* %ret, align 4
48 ;; func_for_odd - Test branch probabilities for a for loop with a continue and
50 define i32 @func_for_odd(i32 %N) nounwind uwtable {
52 %N.addr = alloca i32, align 4
53 %ret = alloca i32, align 4
54 %loop = alloca i32, align 4
55 store i32 %N, i32* %N.addr, align 4
56 store i32 0, i32* %ret, align 4
57 store i32 0, i32* %loop, align 4
61 %0 = load i32* %loop, align 4
62 %1 = load i32* %N.addr, align 4
63 %cmp = icmp slt i32 %0, %1
64 br i1 %cmp, label %for.body, label %for.end
65 ; CHECK: br i1 %cmp, label %for.body, label %for.end, !prof !1
68 %2 = load i32* %loop, align 4
69 %rem = srem i32 %2, 10
70 %tobool = icmp ne i32 %rem, 0
71 br i1 %tobool, label %if.then, label %if.end
72 ; CHECK: br i1 %tobool, label %if.then, label %if.end, !prof !2
78 %3 = load i32* %loop, align 4
79 %cmp1 = icmp eq i32 %3, 500
80 br i1 %cmp1, label %if.then2, label %if.end3
81 ; CHECK: br i1 %cmp1, label %if.then2, label %if.end3, !prof !3
87 %4 = load i32* %N.addr, align 4
88 %5 = load i32* %ret, align 4
89 %add = add nsw i32 %5, %4
90 store i32 %add, i32* %ret, align 4
94 %6 = load i32* %loop, align 4
95 %inc = add nsw i32 %6, 1
96 store i32 %inc, i32* %loop, align 4
100 %7 = load i32* %ret, align 4
104 ;; func_while - Test branch probability in a vanilla while loop.
105 define i32 @func_while(i32 %N) nounwind uwtable {
107 %N.addr = alloca i32, align 4
108 %ret = alloca i32, align 4
109 %loop = alloca i32, align 4
110 store i32 %N, i32* %N.addr, align 4
111 store i32 0, i32* %ret, align 4
112 store i32 0, i32* %loop, align 4
116 %0 = load i32* %loop, align 4
117 %1 = load i32* %N.addr, align 4
118 %cmp = icmp slt i32 %0, %1
119 br i1 %cmp, label %while.body, label %while.end
120 ; CHECK: br i1 %cmp, label %while.body, label %while.end, !prof !0
123 %2 = load i32* %N.addr, align 4
124 %3 = load i32* %ret, align 4
125 %add = add nsw i32 %3, %2
126 store i32 %add, i32* %ret, align 4
127 %4 = load i32* %loop, align 4
128 %inc = add nsw i32 %4, 1
129 store i32 %inc, i32* %loop, align 4
133 %5 = load i32* %ret, align 4
137 ;; func_while - Test branch probability in a vanilla do-while loop.
138 define i32 @func_do_while(i32 %N) nounwind uwtable {
140 %N.addr = alloca i32, align 4
141 %ret = alloca i32, align 4
142 %loop = alloca i32, align 4
143 store i32 %N, i32* %N.addr, align 4
144 store i32 0, i32* %ret, align 4
145 store i32 0, i32* %loop, align 4
149 %0 = load i32* %N.addr, align 4
150 %1 = load i32* %ret, align 4
151 %add = add nsw i32 %1, %0
152 store i32 %add, i32* %ret, align 4
153 %2 = load i32* %loop, align 4
154 %inc = add nsw i32 %2, 1
155 store i32 %inc, i32* %loop, align 4
159 %3 = load i32* %loop, align 4
160 %4 = load i32* %N.addr, align 4
161 %cmp = icmp slt i32 %3, %4
162 br i1 %cmp, label %do.body, label %do.end
163 ; CHECK: br i1 %cmp, label %do.body, label %do.end, !prof !4
166 %5 = load i32* %ret, align 4
170 define i32 @main(i32 %argc, i8** %argv) nounwind uwtable {
172 %retval = alloca i32, align 4
173 %argc.addr = alloca i32, align 4
174 %argv.addr = alloca i8**, align 8
175 store i32 0, i32* %retval
176 %call = call i32 @func_for(i32 1000)
177 %call1 = call i32 @func_for_odd(i32 1000)
178 %call2 = call i32 @func_while(i32 1000)
179 %call3 = call i32 @func_do_while(i32 1000)
183 !0 = metadata !{metadata !"branch_weights", i32 1000, i32 1}
184 !1 = metadata !{metadata !"branch_weights", i32 501, i32 0}
185 !2 = metadata !{metadata !"branch_weights", i32 450, i32 51}
186 !3 = metadata !{metadata !"branch_weights", i32 1, i32 50}
187 !4 = metadata !{metadata !"branch_weights", i32 999, i32 1}