1; Test to check the callgraph in summary when there is PGO
2; RUN: opt -module-summary %s -o %t.o
3; RUN: llvm-bcanalyzer -dump %t.o | FileCheck %s
4; RUN: opt -module-summary %p/Inputs/thinlto-function-summary-callgraph-profile-summary.ll -o %t2.o
5; RUN: llvm-lto -thinlto -o %t3 %t.o %t2.o
6; RUN: llvm-bcanalyzer -dump %t3.thinlto.bc | FileCheck %s --check-prefix=COMBINED
7
8
9; CHECK: <SOURCE_FILENAME
10; "hot_function"
11; CHECK-NEXT: <FUNCTION op0=0 op1=12
12; "hot1"
13; CHECK-NEXT: <FUNCTION op0=12 op1=4
14; "hot2"
15; CHECK-NEXT: <FUNCTION op0=16 op1=4
16; "hot3"
17; CHECK-NEXT: <FUNCTION op0=20 op1=4
18; "hot4"
19; CHECK-NEXT: <FUNCTION op0=24 op1=4
20; "cold"
21; CHECK-NEXT: <FUNCTION op0=28 op1=4
22; "none1"
23; CHECK-NEXT: <FUNCTION op0=32 op1=5
24; "none2"
25; CHECK-NEXT: <FUNCTION op0=37 op1=5
26; "none3"
27; CHECK-NEXT: <FUNCTION op0=42 op1=5
28; CHECK-LABEL:       <GLOBALVAL_SUMMARY_BLOCK
29; CHECK-NEXT:    <VERSION
30; CHECK-NEXT:    <VALUE_GUID op0=25 op1=123/>
31; op4=hot1 op6=cold op8=hot2 op10=hot4 op12=none1 op14=hot3 op16=none2 op18=none3 op20=123
32; CHECK-NEXT:    <PERMODULE_PROFILE {{.*}} op5=1 op6=3 op7=5 op8=1 op9=2 op10=3 op11=4 op12=1 op13=6 op14=2 op15=3 op16=3 op17=7 op18=2 op19=8 op20=2 op21=25 op22=4/>
33; CHECK-NEXT:  </GLOBALVAL_SUMMARY_BLOCK>
34
35; CHECK: <STRTAB_BLOCK
36; CHECK-NEXT: blob data = 'hot_functionhot1hot2hot3hot4coldnone1none2none3{{.*}}'
37
38; COMBINED:       <GLOBALVAL_SUMMARY_BLOCK
39; COMBINED-NEXT:    <VERSION
40; COMBINED-NEXT:    <FLAGS
41; COMBINED-NEXT:    <VALUE_GUID
42; COMBINED-NEXT:    <VALUE_GUID
43; COMBINED-NEXT:    <VALUE_GUID
44; COMBINED-NEXT:    <VALUE_GUID
45; COMBINED-NEXT:    <VALUE_GUID
46; COMBINED-NEXT:    <VALUE_GUID
47; COMBINED-NEXT:    <VALUE_GUID
48; COMBINED-NEXT:    <VALUE_GUID
49; COMBINED-NEXT:    <COMBINED abbrevid=
50; COMBINED-NEXT:    <COMBINED abbrevid=
51; COMBINED-NEXT:    <COMBINED abbrevid=
52; COMBINED-NEXT:    <COMBINED abbrevid=
53; COMBINED-NEXT:    <COMBINED abbrevid=
54; COMBINED-NEXT:    <COMBINED abbrevid=
55; COMBINED-NEXT:    <COMBINED_PROFILE {{.*}} op6=[[HOT1:.*]] op7=3 op8=[[COLD:.*]] op9=1 op10=[[HOT2:.*]] op11=3 op12=[[NONE1:.*]] op13=2 op14=[[HOT3:.*]] op15=3 op16=[[NONE2:.*]] op17=2 op18=[[NONE3:.*]] op19=2/>
56; COMBINED_NEXT:    <COMBINED abbrevid=
57; COMBINED_NEXT:  </GLOBALVAL_SUMMARY_BLOCK>
58
59
60; ModuleID = 'thinlto-function-summary-callgraph.ll'
61target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
62target triple = "x86_64-unknown-linux-gnu"
63
64; This function have high profile count, so entry block is hot.
65define void @hot_function(i1 %a, i1 %a2) !prof !20 {
66entry:
67    call void @hot1()
68    br i1 %a, label %Cold, label %Hot, !prof !41
69Cold:           ; 1/1000 goes here
70  call void @cold()
71  call void @hot2()
72  call void @hot4(), !prof !15
73  call void @none1()
74  br label %exit
75Hot:            ; 999/1000 goes here
76  call void @hot2()
77  call void @hot3()
78  br i1 %a2, label %None1, label %None2, !prof !42
79None1:          ; half goes here
80  call void @none1()
81  call void @none2()
82  br label %exit
83None2:          ; half goes here
84  call void @none3()
85  br label %exit
86exit:
87  ret void
88}
89
90declare void @hot1() #1
91declare void @hot2() #1
92declare void @hot3() #1
93declare void @hot4() #1
94declare void @cold() #1
95declare void @none1() #1
96declare void @none2() #1
97declare void @none3() #1
98
99
100!41 = !{!"branch_weights", i32 1, i32 1000}
101!42 = !{!"branch_weights", i32 1, i32 1}
102
103
104
105!llvm.module.flags = !{!1}
106!20 = !{!"function_entry_count", i64 110, i64 123}
107
108!1 = !{i32 1, !"ProfileSummary", !2}
109!2 = !{!3, !4, !5, !6, !7, !8, !9, !10}
110!3 = !{!"ProfileFormat", !"InstrProf"}
111!4 = !{!"TotalCount", i64 10000}
112!5 = !{!"MaxCount", i64 10}
113!6 = !{!"MaxInternalCount", i64 1}
114!7 = !{!"MaxFunctionCount", i64 1000}
115!8 = !{!"NumCounts", i64 3}
116!9 = !{!"NumFunctions", i64 3}
117!10 = !{!"DetailedSummary", !11}
118!11 = !{!12, !13, !14}
119!12 = !{i32 10000, i64 100, i32 1}
120!13 = !{i32 999000, i64 100, i32 1}
121!14 = !{i32 999999, i64 1, i32 2}
122!15 = !{!"branch_weights", i32 100}
123