c7b421deac
Use the newly introduced CalleeGuids in CallSiteInfo to annotate the IR where necessary with value profile metadata. Use a synthetic count of 1 since we don't have actual counts in the profile collection.
89 lines
3.4 KiB
Plaintext
89 lines
3.4 KiB
Plaintext
; RUN: split-file %s %t
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;; Basic functionality with flag toggle
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; RUN: llvm-profdata merge --memprof-version=4 %t/basic.yaml -o %t/basic.memprofdata
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; RUN: opt < %t/basic.ll -passes='memprof-use<profile-filename=%t/basic.memprofdata>' -memprof-attach-calleeguids=false -S 2>&1 | FileCheck %s --check-prefix=CHECK-DISABLE
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; RUN: opt < %t/basic.ll -passes='memprof-use<profile-filename=%t/basic.memprofdata>' -memprof-attach-calleeguids=true -S 2>&1 | FileCheck %s --check-prefix=CHECK-ENABLE
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;; FDO conflict handling
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; RUN: llvm-profdata merge --memprof-version=4 %t/fdo_conflict.yaml -o %t/fdo_conflict.memprofdata
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; RUN: opt < %t/fdo_conflict.ll -passes='memprof-use<profile-filename=%t/fdo_conflict.memprofdata>' -memprof-attach-calleeguids=true -S 2>&1 | FileCheck %s --check-prefix=CHECK-FDO
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;--- basic.yaml
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---
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HeapProfileRecords:
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- GUID: _Z3barv
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AllocSites: []
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CallSites:
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- Frames:
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- { Function: _Z3barv, LineOffset: 3, Column: 5, IsInlineFrame: false }
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CalleeGuids: [0x123456789abcdef0, 0x23456789abcdef01]
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...
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;--- basic.ll
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define dso_local void @_Z3barv() !dbg !4 {
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entry:
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%fp = alloca ptr, align 8
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%0 = load ptr, ptr %fp, align 8
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call void %0(), !dbg !5
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; CHECK-ENABLE: call void %0(), {{.*}} !prof !6
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; CHECK-DISABLE-NOT: !prof
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ret void
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}
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; CHECK-ENABLE: !6 = !{!"VP", i32 0, i64 2, i64 1311768467463790320, i64 1, i64 2541551405711093505, i64 1}
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!llvm.module.flags = !{!2, !3}
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!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus_14, file: !1)
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!1 = !DIFile(filename: "t", directory: "/")
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!2 = !{i32 7, !"Dwarf Version", i32 5}
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!3 = !{i32 2, !"Debug Info Version", i32 3}
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!4 = distinct !DISubprogram(name: "bar", linkageName: "_Z3barv", scope: !1, file: !1, line: 1, unit: !0)
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!5 = !DILocation(line: 4, column: 5, scope: !4)
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;--- fdo_conflict.yaml
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---
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HeapProfileRecords:
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- GUID: _Z3foov
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AllocSites: []
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CallSites:
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- Frames:
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- { Function: _Z3foov, LineOffset: 3, Column: 5, IsInlineFrame: false }
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CalleeGuids: [0x123456789abcdef0, 0x23456789abcdef01]
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- Frames:
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- { Function: _Z3foov, LineOffset: 5, Column: 5, IsInlineFrame: false }
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CalleeGuids: [0x555556789abcdef0, 0x666656789abcdef1]
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...
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;--- fdo_conflict.ll
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define dso_local void @_Z3foov() !dbg !14 {
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entry:
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%fp = alloca ptr, align 8
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%0 = load ptr, ptr %fp, align 8
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; This call already has FDO value profile metadata - should NOT be modified
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; CHECK-FDO: call void %0(), {{.*}} !prof !6
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call void %0(), !dbg !15, !prof !16
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%1 = load ptr, ptr %fp, align 8
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; This call does NOT have existing metadata - should get MemProf annotation
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; CHECK-FDO: call void %1(), {{.*}} !prof !9
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call void %1(), !dbg !17
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ret void
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}
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!16 = !{!"VP", i32 0, i64 100, i64 9191153033785521275, i64 80, i64 -1069303473483922844, i64 20}
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; CHECK-FDO: !6 = !{!"VP", i32 0, i64 100, i64 9191153033785521275, i64 80, i64 -1069303473483922844, i64 20}
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; CHECK-FDO: !9 = !{!"VP", i32 0, i64 2, i64 6148915942236413680, i64 1, i64 7378680115485269745, i64 1}
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!llvm.module.flags = !{!12, !13}
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!10 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus_14, file: !11)
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!11 = !DIFile(filename: "t", directory: "/")
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!12 = !{i32 7, !"Dwarf Version", i32 5}
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!13 = !{i32 2, !"Debug Info Version", i32 3}
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!14 = distinct !DISubprogram(name: "foo", linkageName: "_Z3foov", scope: !11, file: !11, line: 1, unit: !10)
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!15 = !DILocation(line: 4, column: 5, scope: !14)
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!17 = !DILocation(line: 6, column: 5, scope: !14)
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