| ; 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) |
