1 ; The two profiles used in this test are the same but encoded in different
2 ; formats. This checks that we produce the same profile annotations regardless
3 ; of the profile format.
5 ; RUN: opt < %s -sample-profile -sample-profile-file=%S/Inputs/fnptr.prof | opt -analyze -branch-prob | FileCheck %s
6 ; RUN: opt < %s -sample-profile -sample-profile-file=%S/Inputs/fnptr.binprof | opt -analyze -branch-prob | FileCheck %s
8 ; CHECK: edge for.body3 -> if.then probability is 534 / 2598 = 20.5543%
9 ; CHECK: edge for.body3 -> if.else probability is 2064 / 2598 = 79.4457%
10 ; CHECK: edge for.inc -> for.inc12 probability is 1052 / 2598 = 40.4927%
11 ; CHECK: edge for.inc -> for.body3 probability is 1546 / 2598 = 59.5073%
12 ; CHECK: edge for.inc12 -> for.end14 probability is 518 / 1052 = 49.2395%
13 ; CHECK: edge for.inc12 -> for.cond1.preheader probability is 534 / 1052 = 50.7605%
15 ; Original C++ test case.
25 ; return x * sin((double)x);
29 ; return x - cos((double)x);
33 ; double (*fptr)(int);
35 ; for (int i = 0; i < N; i++)
36 ; for (int j = 0; j < M; j++) {
37 ; fptr = (rand() % 100 < 30) ? foo : bar;
38 ; if (rand() % 100 < 10)
39 ; S += (*fptr)(i + j * 300);
41 ; S += (*fptr)(i - j / 840);
43 ; printf("S = %lf\n", S);
47 @.str = private unnamed_addr constant [9 x i8] c"S = %lf\0A\00", align 1
49 define double @_Z3fooi(i32 %x) #0 {
51 %conv = sitofp i32 %x to double, !dbg !2
52 %call = tail call double @sin(double %conv) #3, !dbg !8
53 %mul = fmul double %conv, %call, !dbg !8
54 ret double %mul, !dbg !8
57 declare double @sin(double) #1
59 define double @_Z3bari(i32 %x) #0 {
61 %conv = sitofp i32 %x to double, !dbg !9
62 %call = tail call double @cos(double %conv) #3, !dbg !11
63 %sub = fsub double %conv, %call, !dbg !11
64 ret double %sub, !dbg !11
67 declare double @cos(double) #1
69 define i32 @main() #2 {
71 br label %for.cond1.preheader, !dbg !12
73 for.cond1.preheader: ; preds = %for.inc12, %entry
74 %i.025 = phi i32 [ 0, %entry ], [ %inc13, %for.inc12 ]
75 %S.024 = phi double [ 0.000000e+00, %entry ], [ %S.2.lcssa, %for.inc12 ]
76 br label %for.body3, !dbg !14
78 for.body3: ; preds = %for.inc, %for.cond1.preheader
79 %j.023 = phi i32 [ 0, %for.cond1.preheader ], [ %inc, %for.inc ]
80 %S.122 = phi double [ %S.024, %for.cond1.preheader ], [ %S.2, %for.inc ]
81 %call = tail call i32 @rand() #3, !dbg !15
82 %rem = srem i32 %call, 100, !dbg !15
83 %cmp4 = icmp slt i32 %rem, 30, !dbg !15
84 %_Z3fooi._Z3bari = select i1 %cmp4, double (i32)* @_Z3fooi, double (i32)* @_Z3bari, !dbg !15
85 %call5 = tail call i32 @rand() #3, !dbg !16
86 %rem6 = srem i32 %call5, 100, !dbg !16
87 %cmp7 = icmp slt i32 %rem6, 10, !dbg !16
88 br i1 %cmp7, label %if.then, label %if.else, !dbg !16, !prof !17
90 if.then: ; preds = %for.body3
91 %mul = mul nsw i32 %j.023, 300, !dbg !18
92 %add = add nsw i32 %mul, %i.025, !dbg !18
93 %call8 = tail call double %_Z3fooi._Z3bari(i32 %add), !dbg !18
94 br label %for.inc, !dbg !18
96 if.else: ; preds = %for.body3
97 %div = sdiv i32 %j.023, 840, !dbg !19
98 %sub = sub nsw i32 %i.025, %div, !dbg !19
99 %call10 = tail call double %_Z3fooi._Z3bari(i32 %sub), !dbg !19
102 for.inc: ; preds = %if.then, %if.else
103 %call8.pn = phi double [ %call8, %if.then ], [ %call10, %if.else ]
104 %S.2 = fadd double %S.122, %call8.pn, !dbg !18
105 %inc = add nsw i32 %j.023, 1, !dbg !20
106 %exitcond = icmp eq i32 %j.023, 5999, !dbg !14
107 br i1 %exitcond, label %for.inc12, label %for.body3, !dbg !14, !prof !21
109 for.inc12: ; preds = %for.inc
110 %S.2.lcssa = phi double [ %S.2, %for.inc ]
111 %inc13 = add nsw i32 %i.025, 1, !dbg !22
112 %exitcond26 = icmp eq i32 %i.025, 9999, !dbg !12
113 br i1 %exitcond26, label %for.end14, label %for.cond1.preheader, !dbg !12, !prof !23
115 for.end14: ; preds = %for.inc12
116 %S.2.lcssa.lcssa = phi double [ %S.2.lcssa, %for.inc12 ]
117 %call15 = tail call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str, i64 0, i64 0), double %S.2.lcssa.lcssa), !dbg !24
121 ; Function Attrs: nounwind
122 declare i32 @rand() #1
124 ; Function Attrs: nounwind
125 declare i32 @printf(i8* nocapture readonly, ...) #1
127 !llvm.module.flags = !{!0}
130 !0 = !{i32 2, !"Debug Info Version", i32 3}
131 !1 = !{!"clang version 3.6.0 "}
132 !2 = !MDLocation(line: 9, column: 3, scope: !3)
133 !3 = !MDSubprogram(name: "foo", line: 8, isLocal: false, isDefinition: true, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 8, file: !4, scope: !5, type: !6, function: double (i32)* @_Z3fooi, variables: !7)
134 !4 = !MDFile(filename: "fnptr.cc", directory: ".")
135 !5 = !MDFile(filename: "fnptr.cc", directory: ".")
136 !6 = !MDSubroutineType(types: !7)
138 !8 = !MDLocation(line: 9, column: 14, scope: !3)
139 !9 = !MDLocation(line: 13, column: 3, scope: !10)
140 !10 = !MDSubprogram(name: "bar", line: 12, isLocal: false, isDefinition: true, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 12, file: !4, scope: !5, type: !6, function: double (i32)* @_Z3bari, variables: !7)
141 !11 = !MDLocation(line: 13, column: 14, scope: !10)
142 !12 = !MDLocation(line: 19, column: 3, scope: !13)
143 !13 = !MDSubprogram(name: "main", line: 16, isLocal: false, isDefinition: true, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 16, file: !4, scope: !5, type: !6, function: i32 ()* @main, variables: !7)
144 !14 = !MDLocation(line: 20, column: 5, scope: !13)
145 !15 = !MDLocation(line: 21, column: 15, scope: !13)
146 !16 = !MDLocation(line: 22, column: 11, scope: !13)
147 !17 = !{!"branch_weights", i32 534, i32 2064}
148 !18 = !MDLocation(line: 23, column: 14, scope: !13)
149 !19 = !MDLocation(line: 25, column: 14, scope: !13)
150 !20 = !MDLocation(line: 20, column: 28, scope: !13)
151 !21 = !{!"branch_weights", i32 0, i32 1075}
152 !22 = !MDLocation(line: 19, column: 26, scope: !13)
153 !23 = !{!"branch_weights", i32 0, i32 534}
154 !24 = !MDLocation(line: 27, column: 3, scope: !13)
155 !25 = !MDLocation(line: 28, column: 3, scope: !13)