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4391957539
With cost-benefit analysis for inlining, we bypass the cost-threshold by returning inline result from call analyzer early. However the cost and threshold are still available from call analyzer, and when cost is actually higher than threshold, we incorrect set the reason. The change makes the decision from cost-benefit analysis explicit. It's mostly NFC, except that it allows the priority-based sample loader inliner used by CSSPGO to use cost-benefit heuristic. Differential Revision: https://reviews.llvm.org/D99302
85 lines
2.8 KiB
LLVM
85 lines
2.8 KiB
LLVM
;; This test verifies 'auto' hotness threshold when profile summary is available.
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;;
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;; new PM
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; RUN: rm -f %t.yaml %t.hot.yaml
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; RUN: opt < %s --disable-output --enable-new-pm \
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; RUN: --passes='inline' \
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; RUN: --pass-remarks-output=%t.yaml --pass-remarks-filter='inline' \
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; RUN: --pass-remarks-with-hotness
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; RUN: FileCheck %s -check-prefix=YAML-PASS < %t.yaml
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; RUN: FileCheck %s -check-prefix=YAML-MISS < %t.yaml
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;; test 'auto' threshold
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; RUN: opt < %s --disable-output --enable-new-pm --inline-enable-cost-benefit-analysis=0 \
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; RUN: --passes='module(print-profile-summary,cgscc(inline))' \
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; RUN: --pass-remarks-output=%t.hot.yaml --pass-remarks-filter='inline' \
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; RUN: --pass-remarks-with-hotness --pass-remarks-hotness-threshold=auto 2>&1 | FileCheck %s
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; RUN: FileCheck %s -check-prefix=YAML-PASS < %t.hot.yaml
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; RUN: not FileCheck %s -check-prefix=YAML-MISS < %t.hot.yaml
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; RUN: opt < %s --disable-output --enable-new-pm --inline-enable-cost-benefit-analysis=0 \
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; RUN: --passes='module(print-profile-summary,cgscc(inline))' \
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; RUN: --pass-remarks=inline --pass-remarks-missed=inline --pass-remarks-analysis=inline \
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; RUN: --pass-remarks-with-hotness --pass-remarks-hotness-threshold=auto 2>&1 | FileCheck %s -check-prefix=CHECK-RPASS
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; YAML-PASS: --- !Passed
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; YAML-PASS-NEXT: Pass: inline
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; YAML-PASS-NEXT: Name: Inlined
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; YAML-PASS-NEXT: Function: caller1
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; YAML-PASS-NEXT: Hotness: 400
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; YAML-MISS: --- !Missed
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; YAML-MISS-NEXT: Pass: inline
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; YAML-MISS-NEXT: Name: NeverInline
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; YAML-MISS-NEXT: Function: caller2
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; YAML-MISS-NEXT: Hotness: 1
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; CHECK-RPASS: callee1 inlined into caller1 with (cost=-30, threshold=4500) (hotness: 400)
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; CHECK-RPASS-NOT: callee2 not inlined into caller2 because it should never be inlined (cost=never): noinline function attribute (hotness: 1)
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define void @callee1() !prof !20 {
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; CHECK: callee1 :hot
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entry:
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ret void
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}
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; Function Attrs: noinline
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define void @callee2() noinline !prof !21 {
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; CHECK: callee2 :cold
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entry:
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ret void
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}
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define void @caller1() !prof !20 {
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; CHECK: caller1 :hot
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entry:
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call void @callee1()
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ret void
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}
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define void @caller2() !prof !21 {
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; CHECK: caller2 :cold
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entry:
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call void @callee2()
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ret void
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}
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!llvm.module.flags = !{!1}
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!20 = !{!"function_entry_count", i64 400}
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!21 = !{!"function_entry_count", i64 1}
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!1 = !{i32 1, !"ProfileSummary", !2}
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!2 = !{!3, !4, !5, !6, !7, !8, !9, !10}
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!3 = !{!"ProfileFormat", !"InstrProf"}
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!4 = !{!"TotalCount", i64 10000}
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!5 = !{!"MaxCount", i64 10}
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!6 = !{!"MaxInternalCount", i64 1}
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!7 = !{!"MaxFunctionCount", i64 1000}
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!8 = !{!"NumCounts", i64 3}
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!9 = !{!"NumFunctions", i64 3}
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!10 = !{!"DetailedSummary", !11}
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!11 = !{!12, !13, !14}
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!12 = !{i32 10000, i64 100, i32 1}
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!13 = !{i32 999000, i64 100, i32 1}
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!14 = !{i32 999999, i64 1, i32 2}
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