derek.holloway
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106 lines
3.7 KiB
LLVM
106 lines
3.7 KiB
LLVM
;; Test fixup of largest cold contexts.
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;; This case has multiple recursive cycles in the cold context, which can be
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;; made non-recursive with the inlining in the code.
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;; -stats requires asserts
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; REQUIRES: asserts
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;; First try disabling detection of the largest cold contexts.
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;; We will not get any cloning.
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; RUN: opt -passes=memprof-context-disambiguation -supports-hot-cold-new \
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; RUN: -memprof-top-n-important=0 \
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; RUN: -memprof-verify-ccg -memprof-verify-nodes -stats \
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; RUNL -pass-remarks=memprof-context-disambiguation \
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; RUN: %s -S 2>&1 | FileCheck %s --implicit-check-not="created clone" \
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; RUN: --implicit-check-not="Number of cold static allocations" \
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; RUN: --implicit-check-not="Number of function clones" \
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; RUN: --implicit-check-not="Number of important context ids" \
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; RUN: --implicit-check-not="Number of fixup"
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;; Allow default detection of the largest cold contexts, but disable fixup.
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;; We should find 1 important context, but still not get cloning.
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; RUN: opt -passes=memprof-context-disambiguation -supports-hot-cold-new \
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; RUN: -memprof-fixup-important=false \
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; RUN: -memprof-verify-ccg -memprof-verify-nodes -stats \
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; RUNL -pass-remarks=memprof-context-disambiguation \
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; RUN: %s -S 2>&1 | FileCheck %s --check-prefix=TOPN1-NOFIXUP \
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; RUN: --implicit-check-not="created clone" \
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; RUN: --implicit-check-not="Number of cold static allocations" \
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; RUN: --implicit-check-not="Number of function clones" \
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; RUN: --implicit-check-not="Number of fixup"
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; TOPN1-NOFIXUP: 1 memprof-context-disambiguation - Number of important context ids
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;; Allow default detection of largest cold contexts, fixup is enabled by default.
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;; This case should get fixup and cloning.
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; RUN: opt -passes=memprof-context-disambiguation -supports-hot-cold-new \
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; RUN: -memprof-verify-ccg -memprof-verify-nodes -stats \
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; RUN: -pass-remarks=memprof-context-disambiguation \
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; RUN: %s -S 2>&1 | FileCheck %s --check-prefix=TOPN1
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; TOPN1: created clone E.memprof.1
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; TOPN1: created clone DB.memprof.1
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; TOPN1: created clone CB.memprof.1
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; TOPN1: created clone A.memprof.1
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; TOPN1: call in clone main assigned to call function clone A.memprof.1
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; TOPN1: call in clone A.memprof.1 assigned to call function clone CB.memprof.1
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; TOPN1: call in clone CB.memprof.1 assigned to call function clone DB.memprof.1
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; TOPN1: call in clone DB.memprof.1 assigned to call function clone E.memprof.1
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; TOPN1: call in clone E.memprof.1 marked with memprof allocation attribute cold
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; TOPN1: call in clone E marked with memprof allocation attribute notcold
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; TOPN1: 1 memprof-context-disambiguation - Number of contexts with fixed edges
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; TOPN1: 2 memprof-context-disambiguation - Number of fixup edges added
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; TOPN1: 1 memprof-context-disambiguation - Number of important context ids
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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 void @E() {
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entry:
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%call = tail call ptr @_Znam(i64 10), !memprof !7, !callsite !14
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ret void
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}
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define void @DB() {
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entry:
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tail call void @E(), !callsite !17
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ret void
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}
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define void @CB() {
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entry:
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tail call void @DB(), !callsite !22
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ret void
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}
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define void @A() {
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entry:
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tail call void @CB(), !callsite !20
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ret void
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}
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define i32 @main() {
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entry:
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tail call void @A(), !callsite !25
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tail call void @A(), !callsite !27
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ret i32 0
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}
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declare ptr @_Znam(i64)
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!7 = !{!8, !10}
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!8 = !{!9, !"cold", !2}
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!9 = !{i64 123, i64 234, i64 345, i64 234, i64 456, i64 234, i64 567, i64 678}
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!2 = !{i64 12345, i64 200}
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!10 = !{!11, !"notcold", !3}
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!3 = !{i64 23456, i64 200}
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!11 = !{i64 123, i64 234, i64 345, i64 234, i64 456, i64 234, i64 567, i64 789}
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!14 = !{i64 123}
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!17 = !{i64 234, i64 345}
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!22 = !{i64 234, i64 456}
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!20 = !{i64 234, i64 567}
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!25 = !{i64 678}
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!27 = !{i64 789}
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