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cb0c00be5f
Summary: This change introduces InliningAdvisor (and related APIs), the interface that abstracts decision making away from the inlining pass. We will use this interface to delegate decision making to a trained ML model, subsequently (see referenced RFC). RFC: http://lists.llvm.org/pipermail/llvm-dev/2020-April/140763.html Reviewers: davidxl, eraman, dblaikie Subscribers: mgorny, hiraditya, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D79042
138 lines
5.8 KiB
LLVM
138 lines
5.8 KiB
LLVM
; RUN: opt < %s -S -inline -pass-remarks-missed=inline \
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; RUN: -pass-remarks-with-hotness -pass-remarks-hotness-threshold 15 \
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; RUN: -pass-remarks-output=%t 2>&1 | FileCheck %s
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; RUN: cat %t | FileCheck -check-prefix=YAML %s
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; RUN: opt < %s -S -inline -pass-remarks-with-hotness -pass-remarks-output=%t
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; RUN: cat %t | FileCheck -check-prefix=YAML %s
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;
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; Verify that remarks that don't meet the hotness threshold are not output.
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; RUN: opt < %s -S -inline -pass-remarks-missed=inline \
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; RUN: -pass-remarks-with-hotness -pass-remarks-hotness-threshold 100 \
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; RUN: -pass-remarks-output=%t.threshold 2>&1 | \
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; RUN: FileCheck -check-prefix=THRESHOLD %s
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; RUN: test ! -s %t.threshold
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; RUN: opt < %s -S -inline \
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; RUN: -pass-remarks-with-hotness -pass-remarks-hotness-threshold 100 \
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; RUN: -pass-remarks-output=%t.threshold
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; The remarks output file should be empty.
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; RUN: test ! -s %t.threshold
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; NewPM:
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; RUN: opt < %s -S -passes=inline -pass-remarks-missed=inline \
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; RUN: -pass-remarks-with-hotness -pass-remarks-hotness-threshold 15 \
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; RUN: -pass-remarks-output=%t 2>&1 | FileCheck %s
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; RUN: cat %t | FileCheck -check-prefix=YAML %s
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; RUN: opt < %s -S -passes=inline -pass-remarks-with-hotness -pass-remarks-output=%t
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; RUN: cat %t | FileCheck -check-prefix=YAML %s
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;
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; Verify that remarks that don't meet the hotness threshold are not output.
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; RUN: opt < %s -S -passes=inline -pass-remarks-missed=inline \
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; RUN: -pass-remarks-with-hotness -pass-remarks-hotness-threshold 100 \
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; RUN: -pass-remarks-output=%t.threshold 2>&1 | \
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; RUN: FileCheck -check-prefix=THRESHOLD %s
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; RUN: test ! -s %t.threshold
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; RUN: opt < %s -S -passes=inline \
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; RUN: -pass-remarks-with-hotness -pass-remarks-hotness-threshold 100 \
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; RUN: -pass-remarks-output=%t.threshold
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; Inliner - Module Wrapper
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; RUN: opt < %s -S -passes=inliner-wrapper -pass-remarks-missed=inline \
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; RUN: -pass-remarks-with-hotness -pass-remarks-hotness-threshold 15 \
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; RUN: -pass-remarks-output=%t 2>&1 | FileCheck %s
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; RUN: cat %t | FileCheck -check-prefix=YAML %s
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; RUN: opt < %s -S -passes=inliner-wrapper -pass-remarks-with-hotness -pass-remarks-output=%t
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; RUN: cat %t | FileCheck -check-prefix=YAML %s
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;
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; Verify that remarks that don't meet the hotness threshold are not output.
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; RUN: opt < %s -S -passes=inliner-wrapper -pass-remarks-missed=inline \
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; RUN: -pass-remarks-with-hotness -pass-remarks-hotness-threshold 100 \
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; RUN: -pass-remarks-output=%t.threshold 2>&1 | \
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; RUN: FileCheck -check-prefix=THRESHOLD %s
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; RUN: test ! -s %t.threshold
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; RUN: opt < %s -S -passes=inliner-wrapper \
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; RUN: -pass-remarks-with-hotness -pass-remarks-hotness-threshold 100 \
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; RUN: -pass-remarks-output=%t.threshold
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; The remarks output file should be empty.
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; RUN: test ! -s %t.threshold
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; Check the YAML file generated for inliner remarks for this program:
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;
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; 1 int foo();
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; 2 int bar();
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; 3
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; 4 int baz() {
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; 5 return foo() + bar();
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; 6 }
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; CHECK: remark: /tmp/s.c:5:10: foo will not be inlined into baz because its definition is unavailable (hotness: 30)
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; CHECK-NEXT: remark: /tmp/s.c:5:18: bar will not be inlined into baz because its definition is unavailable (hotness: 30)
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; YAML: --- !Missed
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; YAML-NEXT: Pass: inline
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; YAML-NEXT: Name: NoDefinition
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; YAML-NEXT: DebugLoc: { File: '/tmp/s.c', Line: 5, Column: 10 }
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; YAML-NEXT: Function: baz
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; YAML-NEXT: Hotness: 30
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; YAML-NEXT: Args:
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; YAML-NEXT: - Callee: foo
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; YAML-NEXT: - String: ' will not be inlined into '
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; YAML-NEXT: - Caller: baz
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; YAML-NEXT: DebugLoc: { File: '/tmp/s.c', Line: 4, Column: 0 }
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; YAML-NEXT: - String: ' because its definition is unavailable'
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; YAML-NEXT: ...
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; YAML-NEXT: --- !Missed
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; YAML-NEXT: Pass: inline
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; YAML-NEXT: Name: NoDefinition
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; YAML-NEXT: DebugLoc: { File: '/tmp/s.c', Line: 5, Column: 18 }
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; YAML-NEXT: Function: baz
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; YAML-NEXT: Hotness: 30
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; YAML-NEXT: Args:
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; YAML-NEXT: - Callee: bar
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; YAML-NEXT: - String: ' will not be inlined into '
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; YAML-NEXT: - Caller: baz
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; YAML-NEXT: DebugLoc: { File: '/tmp/s.c', Line: 4, Column: 0 }
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; YAML-NEXT: - String: ' because its definition is unavailable'
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; YAML-NEXT: ...
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; No remarks should be output, since none meet the threshold.
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; THRESHOLD-NOT: remark
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; ModuleID = '/tmp/s.c'
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source_filename = "/tmp/s.c"
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target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-apple-macosx10.11.0"
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; Function Attrs: nounwind ssp uwtable
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define i32 @"\01baz"() !dbg !7 !prof !14 {
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entry:
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%call = call i32 (...) @foo(), !dbg !9
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%call1 = call i32 (...) @"\01bar"(), !dbg !10
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%add = add nsw i32 %call, %call1, !dbg !12
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ret i32 %add, !dbg !13
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}
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declare i32 @foo(...)
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declare i32 @"\01bar"(...)
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!3, !4, !5}
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!llvm.ident = !{!6}
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!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 4.0.0 (trunk 281293) (llvm/trunk 281290)", isOptimized: true, runtimeVersion: 0, emissionKind: LineTablesOnly, enums: !2)
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!1 = !DIFile(filename: "/tmp/s.c", directory: "/tmp")
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!2 = !{}
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!3 = !{i32 2, !"Dwarf Version", i32 4}
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!4 = !{i32 2, !"Debug Info Version", i32 3}
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!5 = !{i32 1, !"PIC Level", i32 2}
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!6 = !{!"clang version 4.0.0 (trunk 281293) (llvm/trunk 281290)"}
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!7 = distinct !DISubprogram(name: "baz", scope: !1, file: !1, line: 4, type: !8, isLocal: false, isDefinition: true, scopeLine: 4, isOptimized: true, unit: !0, retainedNodes: !2)
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!8 = !DISubroutineType(types: !2)
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!9 = !DILocation(line: 5, column: 10, scope: !7)
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!10 = !DILocation(line: 5, column: 18, scope: !11)
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!11 = !DILexicalBlockFile(scope: !7, file: !1, discriminator: 1)
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!12 = !DILocation(line: 5, column: 16, scope: !7)
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!13 = !DILocation(line: 5, column: 3, scope: !7)
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!14 = !{!"function_entry_count", i64 30}
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