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; REQUIRES: x86_64-linux
; Make sure that we can ingest the MemProf profile in YAML and
; annotate a call to new as cold.
; RUN: split-file %s %t
; RUN: llvm-profdata merge %t/memprof_annotate_yaml.yaml -o %t/memprof_annotate_yaml.memprofdata
; RUN: opt < %t/memprof_annotate_yaml.ll -passes='memprof-use<profile-filename=%t/memprof_annotate_yaml.memprofdata>' -S 2>&1 | FileCheck %s
;--- memprof_annotate_yaml.yaml
---
HeapProfileRecords:
- GUID: _Z3foov
AllocSites:
- Callstack:
- { Function: _Z3foov, LineOffset: 0, Column: 22, IsInlineFrame: false }
- { Function: main, LineOffset: 2, Column: 5, IsInlineFrame: false }
MemInfoBlock:
# With these numbers, llvm::memprof::getAllocType will determine that
# the call to new is cold. See MemoryProfileInfo.cpp for details.
TotalSize: 400
AllocCount: 1
TotalLifetimeAccessDensity: 1
TotalLifetime: 1000000
CallSites: []
...
;--- memprof_annotate_yaml.ll
define dso_local ptr @_Z3foov() !dbg !4 {
entry:
%call = call ptr @_Znam(i64 4) #0, !dbg !5
; CHECK: call ptr @_Znam(i64 4) #[[ATTR:[0-9]+]],
ret ptr %call
}
declare ptr @_Znam(i64)
attributes #0 = { builtin allocsize(0) }
; CHECK: attributes #[[ATTR]] = {{.*}} "memprof"="cold"
!llvm.module.flags = !{!2, !3}
!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus_14, file: !1)
!1 = !DIFile(filename: "t", directory: "/")
!2 = !{i32 7, !"Dwarf Version", i32 5}
!3 = !{i32 2, !"Debug Info Version", i32 3}
!4 = distinct !DISubprogram(name: "foo", linkageName: "_Z3foov", scope: !1, file: !1, line: 1, unit: !0)
!5 = !DILocation(line: 1, column: 22, scope: !4)
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