1 ; RUN: opt -insert-edge-profiling -o %t1 < %s
2 ; RUN: rm -f %t1.prof_data
3 ; RUN: lli -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 ;; func_mod - Branch taken 6 times in 7.
10 define i32 @func_mod(i32 %N) nounwind uwtable {
12 %retval = alloca i32, align 4
13 %N.addr = alloca i32, align 4
14 store i32 %N, i32* %N.addr, align 4
15 %0 = load i32* %N.addr, align 4
17 %tobool = icmp ne i32 %rem, 0
18 br i1 %tobool, label %if.then, label %if.else
19 ; CHECK: br i1 %tobool, label %if.then, label %if.else, !prof !0
22 store i32 1, i32* %retval
26 store i32 0, i32* %retval
30 %1 = load i32* %retval
34 ;; func_const_true - conditional branch which 100% taken probability.
35 define i32 @func_const_true(i32 %N) nounwind uwtable {
37 %retval = alloca i32, align 4
38 %N.addr = alloca i32, align 4
39 store i32 %N, i32* %N.addr, align 4
40 %0 = load i32* %N.addr, align 4
41 %cmp = icmp eq i32 %0, 1
42 br i1 %cmp, label %if.then, label %if.end
43 ; CHECK: br i1 %cmp, label %if.then, label %if.end, !prof !1
46 store i32 1, i32* %retval
50 store i32 0, i32* %retval
54 %1 = load i32* %retval
58 ;; func_const_true - conditional branch which 100% not-taken probability.
59 define i32 @func_const_false(i32 %N) nounwind uwtable {
61 %retval = alloca i32, align 4
62 %N.addr = alloca i32, align 4
63 store i32 %N, i32* %N.addr, align 4
64 %0 = load i32* %N.addr, align 4
65 %cmp = icmp eq i32 %0, 1
66 br i1 %cmp, label %if.then, label %if.end
67 ; CHECK: br i1 %cmp, label %if.then, label %if.end, !prof !2
70 store i32 1, i32* %retval
74 store i32 0, i32* %retval
78 %1 = load i32* %retval
82 define i32 @main(i32 %argc, i8** %argv) nounwind uwtable {
84 %retval = alloca i32, align 4
85 %argc.addr = alloca i32, align 4
86 %argv.addr = alloca i8**, align 8
87 %loop = alloca i32, align 4
88 store i32 0, i32* %retval
89 store i32 0, i32* %loop, align 4
93 %0 = load i32* %loop, align 4
94 %cmp = icmp slt i32 %0, 7000
95 br i1 %cmp, label %for.body, label %for.end
96 ; CHECK: br i1 %cmp, label %for.body, label %for.end, !prof !3
99 %1 = load i32* %loop, align 4
100 %call = call i32 @func_mod(i32 %1)
104 %2 = load i32* %loop, align 4
105 %inc = add nsw i32 %2, 1
106 store i32 %inc, i32* %loop, align 4
110 %call1 = call i32 @func_const_true(i32 1)
111 %call2 = call i32 @func_const_false(i32 0)
115 ; CHECK: !0 = metadata !{metadata !"branch_weights", i32 6000, i32 1000}
116 ; CHECK: !1 = metadata !{metadata !"branch_weights", i32 1, i32 0}
117 ; CHECK: !2 = metadata !{metadata !"branch_weights", i32 0, i32 1}
118 ; CHECK: !3 = metadata !{metadata !"branch_weights", i32 7000, i32 1}