xref: /llvm-project/llvm/test/Transforms/PGOProfile/memprof_internal_linkage.ll (revision b8c92938ef9bd60cc55e6094965f15db1e7946d5) 
1;; Tests memprof when contains internal linkage function.
2
3;; Avoid failures on big-endian systems that can't read the profile properly
4; REQUIRES: x86_64-linux
5
6;; TODO: Use text profile inputs once that is available for memprof.
7;; # To update the Inputs below, run Inputs/update_memprof_inputs.sh.
8;; # To generate below LLVM IR for use in matching.
9;; $ clang++ -gmlt -fdebug-info-for-profiling -S %S/Inputs/memprof_internal_linkage.cc -emit-llvm -funique-internal-linkage-names
10
11; RUN: llvm-profdata merge %S/Inputs/memprof_internal_linkage.memprofraw --profiled-binary %S/Inputs/memprof_internal_linkage.exe -o %t.memprofdata
12; RUN: opt < %s -passes='memprof-use<profile-filename=%t.memprofdata>' -S | FileCheck %s
13
14; CHECK: call {{.*}} @_Znam{{.*}} #[[ATTR:[0-9]+]]
15; CHECK: attributes #[[ATTR]] = { builtin allocsize(0) "memprof"="notcold" }
16
17; ModuleID = 'memprof_internal_linkage.cc'
18source_filename = "memprof_internal_linkage.cc"
19target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
20target triple = "x86_64-unknown-linux-gnu"
21
22; Function Attrs: mustprogress noinline norecurse optnone uwtable
23define dso_local noundef i32 @main(i32 noundef %argc, ptr noundef %argv) #0 !dbg !10 {
24entry:
25  %retval = alloca i32, align 4
26  %argc.addr = alloca i32, align 4
27  %argv.addr = alloca ptr, align 8
28  store i32 0, ptr %retval, align 4
29  store i32 %argc, ptr %argc.addr, align 4
30  store ptr %argv, ptr %argv.addr, align 8
31  call void @_ZL3foov.__uniq.246575255519150625886541854978321354160() #4, !dbg !14
32  ret i32 0, !dbg !15
33}
34
35; Function Attrs: mustprogress noinline optnone uwtable
36define internal void @_ZL3foov.__uniq.246575255519150625886541854978321354160() #1 !dbg !16 {
37entry:
38  %a = alloca ptr, align 8
39  %call = call noalias noundef nonnull ptr @_Znam(i64 noundef 20) #5, !dbg !17
40  store ptr %call, ptr %a, align 8, !dbg !18
41  %0 = load ptr, ptr %a, align 8, !dbg !19
42  call void @llvm.memset.p0.i64(ptr align 4 %0, i8 0, i64 5, i1 false), !dbg !20
43  ret void, !dbg !21
44}
45
46; Function Attrs: nobuiltin allocsize(0)
47declare noundef nonnull ptr @_Znam(i64 noundef) #2
48
49; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: write)
50declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #3
51
52attributes #0 = { mustprogress noinline norecurse optnone uwtable "frame-pointer"="all" "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
53attributes #1 = { mustprogress noinline optnone uwtable "frame-pointer"="all" "min-legal-vector-width"="0" "no-trapping-math"="true" "sample-profile-suffix-elision-policy"="selected" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
54attributes #2 = { nobuiltin allocsize(0) "frame-pointer"="all" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
55attributes #3 = { nocallback nofree nounwind willreturn memory(argmem: write) }
56attributes #4 = { "sample-profile-suffix-elision-policy"="selected" }
57attributes #5 = { builtin allocsize(0) }
58
59!llvm.dbg.cu = !{!0}
60!llvm.module.flags = !{!2, !3, !4, !5, !6, !7, !8}
61!llvm.ident = !{!9}
62
63!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus_14, file: !1, producer: "clang version 18.0.0 (https://github.com/llvm/llvm-project.git a604a1112a611ea867dc4e8d164021c7b055e18a)", isOptimized: false, runtimeVersion: 0, emissionKind: LineTablesOnly, splitDebugInlining: false, debugInfoForProfiling: true, nameTableKind: None)
64!1 = !DIFile(filename: "memprof_internal_linkage.cc", directory: ".", checksumkind: CSK_MD5, checksum: "de848419432086fd9ed6dda04f3bf0ac")
65!2 = !{i32 7, !"Dwarf Version", i32 5}
66!3 = !{i32 2, !"Debug Info Version", i32 3}
67!4 = !{i32 1, !"wchar_size", i32 4}
68!5 = !{i32 8, !"PIC Level", i32 2}
69!6 = !{i32 7, !"PIE Level", i32 2}
70!7 = !{i32 7, !"uwtable", i32 2}
71!8 = !{i32 7, !"frame-pointer", i32 2}
72!9 = !{!"clang version 18.0.0 (https://github.com/llvm/llvm-project.git a604a1112a611ea867dc4e8d164021c7b055e18a)"}
73!10 = distinct !DISubprogram(name: "main", scope: !11, file: !11, line: 7, type: !12, scopeLine: 7, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !0)
74!11 = !DIFile(filename: "memprof_internal_linkage.cc", directory: ".", checksumkind: CSK_MD5, checksum: "de848419432086fd9ed6dda04f3bf0ac")
75!12 = !DISubroutineType(types: !13)
76!13 = !{}
77!14 = !DILocation(line: 8, column: 3, scope: !10)
78!15 = !DILocation(line: 9, column: 3, scope: !10)
79!16 = distinct !DISubprogram(name: "foo", linkageName: "_ZL3foov.__uniq.246575255519150625886541854978321354160", scope: !11, file: !11, line: 3, type: !12, scopeLine: 3, flags: DIFlagPrototyped, spFlags: DISPFlagLocalToUnit | DISPFlagDefinition, unit: !0)
80!17 = !DILocation(line: 4, column: 12, scope: !16)
81!18 = !DILocation(line: 4, column: 8, scope: !16)
82!19 = !DILocation(line: 5, column: 10, scope: !16)
83!20 = !DILocation(line: 5, column: 3, scope: !16)
84!21 = !DILocation(line: 6, column: 1, scope: !16)