| ;; Test the -memprof-min-percent-max-cold-size flag for annotating only the |
| ;; largest contexts with size info. |
| |
| ; REQUIRES: x86_64-linux |
| |
| ; RUN: split-file %s %t |
| |
| ;; Specify version 4 so that a summary is generated. |
| ; RUN: llvm-profdata merge --memprof-version=4 %t/memprof_max_cold_threshold.yaml -o %t/memprof_max_cold_threshold.memprofdata |
| |
| ; RUN: llvm-profdata show --memory %t/memprof_max_cold_threshold.memprofdata | FileCheck %s --check-prefixes=SUMMARY |
| ; SUMMARY: # MemProfSummary: |
| ; SUMMARY: # Total contexts: 5 |
| ; SUMMARY: # Total cold contexts: 4 |
| ; SUMMARY: # Total hot contexts: 0 |
| ; SUMMARY: # Maximum cold context total size: 400 |
| ; SUMMARY: # Maximum warm context total size: 500 |
| ; SUMMARY: # Maximum hot context total size: 0 |
| |
| ;; Test with various thresholds, starting with the baseline of no context size |
| ;; info. |
| ; RUN: opt < %t/memprof_max_cold_threshold.ll -passes='memprof-use<profile-filename=%t/memprof_max_cold_threshold.memprofdata>' -S | FileCheck %s --check-prefixes=ALL,NONE |
| ; RUN: opt < %t/memprof_max_cold_threshold.ll -memprof-min-percent-max-cold-size=99 -passes='memprof-use<profile-filename=%t/memprof_max_cold_threshold.memprofdata>' -S | FileCheck %s --check-prefixes=ALL,THRESH99 |
| ; RUN: opt < %t/memprof_max_cold_threshold.ll -memprof-min-percent-max-cold-size=75 -passes='memprof-use<profile-filename=%t/memprof_max_cold_threshold.memprofdata>' -S | FileCheck %s --check-prefixes=ALL,THRESH75 |
| ; RUN: opt < %t/memprof_max_cold_threshold.ll -memprof-min-percent-max-cold-size=50 -passes='memprof-use<profile-filename=%t/memprof_max_cold_threshold.memprofdata>' -S | FileCheck %s --check-prefixes=ALL,THRESH50 |
| |
| ;; Make sure serializing / deserializing through bitcode works |
| ; RUN: opt < %t/memprof_max_cold_threshold.ll -memprof-min-percent-max-cold-size=75 -passes='memprof-use<profile-filename=%t/memprof_max_cold_threshold.memprofdata>' -o %t/out.bc |
| ; RUN: llvm-dis %t/out.bc -o - | FileCheck %s --check-prefixes=ALL,THRESH75 |
| |
| ;--- memprof_max_cold_threshold.yaml |
| --- |
| HeapProfileRecords: |
| - GUID: _Z3foov |
| AllocSites: |
| - Callstack: |
| - { Function: _Z3foov, LineOffset: 0, Column: 22, IsInlineFrame: false } |
| - { Function: main, LineOffset: 2, Column: 5, IsInlineFrame: false } |
| MemInfoBlock: |
| # Smallest cold, 25% of largest cold size |
| TotalSize: 100 |
| AllocCount: 1 |
| TotalLifetimeAccessDensity: 1 |
| TotalLifetime: 1000000 |
| - Callstack: |
| - { Function: _Z3foov, LineOffset: 0, Column: 22, IsInlineFrame: false } |
| - { Function: main, LineOffset: 3, Column: 5, IsInlineFrame: false } |
| MemInfoBlock: |
| # Largest cold |
| TotalSize: 400 |
| AllocCount: 1 |
| TotalLifetimeAccessDensity: 1 |
| TotalLifetime: 1000000 |
| - Callstack: |
| - { Function: _Z3foov, LineOffset: 0, Column: 22, IsInlineFrame: false } |
| - { Function: main, LineOffset: 4, Column: 5, IsInlineFrame: false } |
| MemInfoBlock: |
| # Second largest cold, 75% of largest cold size |
| TotalSize: 300 |
| AllocCount: 1 |
| TotalLifetimeAccessDensity: 1 |
| TotalLifetime: 1000000 |
| - Callstack: |
| - { Function: _Z3foov, LineOffset: 0, Column: 22, IsInlineFrame: false } |
| - { Function: main, LineOffset: 5, Column: 5, IsInlineFrame: false } |
| MemInfoBlock: |
| # Second smallest cold, 50% of largest cold size |
| TotalSize: 200 |
| AllocCount: 1 |
| TotalLifetimeAccessDensity: 1 |
| TotalLifetime: 1000000 |
| - Callstack: |
| - { Function: _Z3foov, LineOffset: 0, Column: 22, IsInlineFrame: false } |
| - { Function: main, LineOffset: 6, Column: 5, IsInlineFrame: false } |
| MemInfoBlock: |
| # Largest context, which is non-cold (due to short lifetime) |
| TotalSize: 500 |
| AllocCount: 1 |
| TotalLifetimeAccessDensity: 1 |
| TotalLifetime: 1 |
| CallSites: [] |
| ... |
| ;--- memprof_max_cold_threshold.ll |
| define dso_local ptr @_Z3foov() !dbg !4 { |
| entry: |
| %call = call ptr @_Znam(i64 4) #0, !dbg !5 |
| ; ALL: call ptr @_Znam(i64 4) {{.*}} !memprof ![[M1:[0-9]+]] |
| ret ptr %call |
| } |
| |
| ;; No MIBs get context size info without option. |
| ; NONE: ![[M1]] = !{![[M2:[0-9]+]], ![[M3:[0-9]+]], ![[M4:[0-9]+]], ![[M5:[0-9]+]], ![[M6:[0-9]+]]} |
| ; NONE: ![[M2]] = !{![[C2:[0-9]+]], !"cold"} |
| ; NONE: ![[C2]] = !{i64 590523745590780990, i64 720385627691022109} |
| ; NONE: ![[M3]] = !{![[C3:[0-9]+]], !"cold"} |
| ; NONE: ![[C3]] = !{i64 590523745590780990, i64 8256520048276991898} |
| ; NONE: ![[M4]] = !{![[C4:[0-9]+]], !"cold"} |
| ; NONE: ![[C4]] = !{i64 590523745590780990, i64 -6953100768213558995} |
| ; NONE: ![[M5]] = !{![[C5:[0-9]+]], !"cold"} |
| ; NONE: ![[C5]] = !{i64 590523745590780990, i64 -6435117705372285425} |
| ; NONE: ![[M6]] = !{![[C6:[0-9]+]], !"notcold"} |
| ; NONE: ![[C6]] = !{i64 590523745590780990, i64 -2847840206325626610} |
| |
| ; THRESH99: ![[M1]] = !{![[M2:[0-9]+]], ![[M3:[0-9]+]], ![[M4:[0-9]+]], ![[M5:[0-9]+]], ![[M6:[0-9]+]]} |
| ; THRESH99: ![[M2]] = !{![[C2:[0-9]+]], !"cold"} |
| ; THRESH99: ![[C2]] = !{i64 590523745590780990, i64 720385627691022109} |
| ;; MIB with size 400 is now included with threshold 99% |
| ; THRESH99: ![[M3]] = !{![[C3:[0-9]+]], !"cold", ![[S3:[0-9]+]]} |
| ; THRESH99: ![[C3]] = !{i64 590523745590780990, i64 8256520048276991898} |
| ; THRESH99: ![[S3]] = !{i64 6509573709067523871, i64 400} |
| ; THRESH99: ![[M4]] = !{![[C4:[0-9]+]], !"cold"} |
| ; THRESH99: ![[C4]] = !{i64 590523745590780990, i64 -6953100768213558995} |
| ; THRESH99: ![[M5]] = !{![[C5:[0-9]+]], !"cold"} |
| ; THRESH99: ![[C5]] = !{i64 590523745590780990, i64 -6435117705372285425} |
| ; THRESH99: ![[M6]] = !{![[C6:[0-9]+]], !"notcold"} |
| ; THRESH99: ![[C6]] = !{i64 590523745590780990, i64 -2847840206325626610} |
| |
| ; THRESH75: ![[M1]] = !{![[M2:[0-9]+]], ![[M3:[0-9]+]], ![[M4:[0-9]+]], ![[M5:[0-9]+]], ![[M6:[0-9]+]]} |
| ; THRESH75: ![[M2]] = !{![[C2:[0-9]+]], !"cold"} |
| ; THRESH75: ![[C2]] = !{i64 590523745590780990, i64 720385627691022109} |
| ; THRESH75: ![[M3]] = !{![[C3:[0-9]+]], !"cold", ![[S3:[0-9]+]]} |
| ; THRESH75: ![[C3]] = !{i64 590523745590780990, i64 8256520048276991898} |
| ; THRESH75: ![[S3]] = !{i64 6509573709067523871, i64 400} |
| ; THRESH75: ![[M4]] = !{![[C4:[0-9]+]], !"cold"} |
| ; THRESH75: ![[C4]] = !{i64 590523745590780990, i64 -6953100768213558995} |
| ;; MIB with size 300 is now included with threshold 75% |
| ; THRESH75: ![[M5]] = !{![[C5:[0-9]+]], !"cold", ![[S5:[0-9]+]]} |
| ; THRESH75: ![[C5]] = !{i64 590523745590780990, i64 -6435117705372285425} |
| ; THRESH75: ![[S5]] = !{i64 86248815258696712, i64 300} |
| ; THRESH75: ![[M6]] = !{![[C6:[0-9]+]], !"notcold"} |
| ; THRESH75: ![[C6]] = !{i64 590523745590780990, i64 -2847840206325626610} |
| |
| ; THRESH50: ![[M1]] = !{![[M2:[0-9]+]], ![[M3:[0-9]+]], ![[M4:[0-9]+]], ![[M5:[0-9]+]], ![[M6:[0-9]+]]} |
| ;; The smallest never gets context size info. |
| ; THRESH50: ![[M2]] = !{![[C2:[0-9]+]], !"cold"} |
| ; THRESH50: ![[C2]] = !{i64 590523745590780990, i64 720385627691022109} |
| ; THRESH50: ![[M3]] = !{![[C3:[0-9]+]], !"cold", ![[S3:[0-9]+]]} |
| ; THRESH50: ![[C3]] = !{i64 590523745590780990, i64 8256520048276991898} |
| ; THRESH50: ![[S3]] = !{i64 6509573709067523871, i64 400} |
| ;; MIB with size 200 is now included with threshold 50% |
| ; THRESH50: ![[M4]] = !{![[C4:[0-9]+]], !"cold", ![[S4:[0-9]+]]} |
| ; THRESH50: ![[C4]] = !{i64 590523745590780990, i64 -6953100768213558995} |
| ; THRESH50: ![[S4]] = !{i64 -2629930016428010893, i64 200} |
| ; THRESH50: ![[M5]] = !{![[C5:[0-9]+]], !"cold", ![[S5:[0-9]+]]} |
| ; THRESH50: ![[C5]] = !{i64 590523745590780990, i64 -6435117705372285425} |
| ; THRESH50: ![[S5]] = !{i64 86248815258696712, i64 300} |
| ;; Non cold context never gets context size info |
| ; THRESH50: ![[M6]] = !{![[C6:[0-9]+]], !"notcold"} |
| ; THRESH50: ![[C6]] = !{i64 590523745590780990, i64 -2847840206325626610} |
| |
| declare ptr @_Znam(i64) |
| |
| attributes #0 = { builtin allocsize(0) } |
| |
| !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) |
| !6 = !DILocation(line: 2, column: 22, scope: !4) |
| !7 = !DILocation(line: 3, column: 22, scope: !4) |
| !8 = !DILocation(line: 4, column: 22, scope: !4) |
