derek.holloway
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142 lines
6.8 KiB
LLVM
142 lines
6.8 KiB
LLVM
; Tests that the compiler dumps an allocation site with multiple inlined frames.
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;
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; The test case is generated from:
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;
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; // main
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; // |
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; // f1 (noinline)
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; // |
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; // f2
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; // |
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; // f3
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; // |
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; // new
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;
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; char *f1() { return new char[3]; }
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; char *f2() { return f1(); }
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; __attribute__((noinline)) char *f3() { return f2(); }
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;
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; int main() {
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; f3();
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; return 0;
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; }
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;
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; Here we expect to match the allocation site to encompass 3 frames.
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; REQUIRES: x86_64-linux
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; RUN: split-file %s %t
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; RUN: llvm-profdata merge %t/memprof-dump-matched-alloc-site.yaml -o %t/memprof-dump-matched-alloc-site.memprofdata
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; RUN: opt < %t/memprof-dump-matched-alloc-site.ll -passes='memprof-use<profile-filename=%t/memprof-dump-matched-alloc-site.memprofdata>' -memprof-print-match-info -memprof-print-function-guids -S -pass-remarks=memprof 2>&1 | FileCheck %s --check-prefixes=MATCH,FUNCGUID,REMARK
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;; Test that -memprof-print-matched-alloc-stack enables reporting of the full
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;; matched stack.
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; RUN: opt < %t/memprof-dump-matched-alloc-site.ll -passes='memprof-use<profile-filename=%t/memprof-dump-matched-alloc-site.memprofdata>' -memprof-print-match-info -memprof-print-matched-alloc-stack -S 2>&1 | FileCheck %s --check-prefixes=MATCH,STACK
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;; Test that -memprof-print-matched-alloc-stack without -memprof-print-match-info
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;; is a noop.
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; RUN: opt < %t/memprof-dump-matched-alloc-site.ll -passes='memprof-use<profile-filename=%t/memprof-dump-matched-alloc-site.memprofdata>' -memprof-print-matched-alloc-stack -S 2>&1 | FileCheck %s --implicit-check-not="context with id" --implicit-check-not="and call stack"
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;--- memprof-dump-matched-alloc-site.yaml
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---
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HeapProfileRecords:
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- GUID: _Z2f2v
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AllocSites:
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- Callstack:
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- { Function: _Z2f1v, LineOffset: 0, Column: 21, IsInlineFrame: true }
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- { Function: _Z2f2v, LineOffset: 0, Column: 21, IsInlineFrame: true }
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- { Function: _Z2f3v, LineOffset: 0, Column: 47, IsInlineFrame: false }
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- { Function: main, LineOffset: 1, Column: 3, IsInlineFrame: false }
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MemInfoBlock:
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AllocCount: 1
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TotalSize: 3
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TotalLifetime: 0
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TotalLifetimeAccessDensity: 0
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CallSites:
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- Frames:
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- { Function: _Z2f1v, LineOffset: 0, Column: 21, IsInlineFrame: true }
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- { Function: _Z2f2v, LineOffset: 0, Column: 21, IsInlineFrame: true }
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- { Function: _Z2f3v, LineOffset: 0, Column: 47, IsInlineFrame: false }
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- GUID: _Z2f1v
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AllocSites:
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- Callstack:
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- { Function: _Z2f1v, LineOffset: 0, Column: 21, IsInlineFrame: true }
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- { Function: _Z2f2v, LineOffset: 0, Column: 21, IsInlineFrame: true }
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- { Function: _Z2f3v, LineOffset: 0, Column: 47, IsInlineFrame: false }
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- { Function: main, LineOffset: 1, Column: 3, IsInlineFrame: false }
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MemInfoBlock:
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AllocCount: 1
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TotalSize: 3
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TotalLifetime: 0
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TotalLifetimeAccessDensity: 0
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CallSites: []
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- GUID: _Z2f3v
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AllocSites:
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- Callstack:
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- { Function: _Z2f1v, LineOffset: 0, Column: 21, IsInlineFrame: true }
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- { Function: _Z2f2v, LineOffset: 0, Column: 21, IsInlineFrame: true }
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- { Function: _Z2f3v, LineOffset: 0, Column: 47, IsInlineFrame: false }
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- { Function: main, LineOffset: 1, Column: 3, IsInlineFrame: false }
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MemInfoBlock:
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AllocCount: 1
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TotalSize: 3
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TotalLifetime: 0
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TotalLifetimeAccessDensity: 0
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CallSites:
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# Kept empty here because this section is irrelevant for this test.
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...
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;--- memprof-dump-matched-alloc-site.ll
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;; From -pass-remarks=memprof and -memprof-print-function-guids
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; FUNCGUID: MemProf: Function GUID 4708092051066754107 is _Z2f1v
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; REMARK: remark: memprof-dump-matched-alloc-site.cc:1:21: call in function _Z2f1v matched alloc context with alloc type notcold total size 3 full context id 5736731103568718490 frame count 1
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; FUNCGUID: MemProf: Function GUID 14255129117669598641 is _Z2f2v
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; REMARK: remark: memprof-dump-matched-alloc-site.cc:1:21: call in function _Z2f2v matched alloc context with alloc type notcold total size 3 full context id 5736731103568718490 frame count 2
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; FUNCGUID: MemProf: Function GUID 2771528421763978342 is _Z2f3v
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; REMARK: remark: memprof-dump-matched-alloc-site.cc:1:21: call in function _Z2f3v matched alloc context with alloc type notcold total size 3 full context id 5736731103568718490 frame count 3
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; MATCH: MemProf notcold context with id 5736731103568718490 has total profiled size 3 is matched with 1 frames
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; STACK-SAME: and call stack 16675831946704128299 1244320836757332728 8373967866436022208 5401059281181789382
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; MATCH: MemProf notcold context with id 5736731103568718490 has total profiled size 3 is matched with 2 frames
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; STACK-SAME: and call stack 16675831946704128299 1244320836757332728 8373967866436022208 5401059281181789382
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; MATCH: MemProf notcold context with id 5736731103568718490 has total profiled size 3 is matched with 3 frames
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; STACK-SAME: and call stack 16675831946704128299 1244320836757332728 8373967866436022208 5401059281181789382
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target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-unknown-linux-gnu"
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define ptr @_Z2f1v() {
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entry:
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%call = call ptr @_Znam(i64 0), !dbg !3
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ret ptr %call
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}
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declare ptr @_Znam(i64)
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define ptr @_Z2f2v() {
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entry:
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%call.i = call ptr @_Znam(i64 0), !dbg !7
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ret ptr %call.i
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}
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define ptr @_Z2f3v() {
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entry:
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%call.i.i = call ptr @_Znam(i64 0), !dbg !10
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ret ptr %call.i.i
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}
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!2}
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!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus_14, file: !1)
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!1 = !DIFile(filename: "memprof-dump-matched-alloc-site.cc", directory: "/")
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!2 = !{i32 2, !"Debug Info Version", i32 3}
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!3 = !DILocation(line: 1, column: 21, scope: !4)
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!4 = distinct !DISubprogram(name: "f1", linkageName: "_Z2f1v", scope: !1, file: !1, line: 1, type: !5, scopeLine: 1, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0)
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!5 = !DISubroutineType(types: !6)
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!6 = !{}
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!7 = !DILocation(line: 1, column: 21, scope: !4, inlinedAt: !8)
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!8 = distinct !DILocation(line: 2, column: 21, scope: !9)
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!9 = distinct !DISubprogram(name: "f2", linkageName: "_Z2f2v", scope: !1, file: !1, line: 2, type: !5, scopeLine: 2, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0)
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!10 = !DILocation(line: 1, column: 21, scope: !4, inlinedAt: !11)
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!11 = distinct !DILocation(line: 2, column: 21, scope: !9, inlinedAt: !12)
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!12 = distinct !DILocation(line: 3, column: 47, scope: !13)
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!13 = distinct !DISubprogram(name: "f3", linkageName: "_Z2f3v", scope: !1, file: !1, line: 3, type: !5, scopeLine: 3, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0)
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