63 lines
2.2 KiB
LLVM
63 lines
2.2 KiB
LLVM
;; Test handling of memprof distributed ThinLTO when the call to update is an alias.
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;; Preparation steps to generate the bitcode and perform the thin link.
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; RUN: opt -thinlto-bc %s >%t.o
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; RUN: llvm-lto2 run %t.o -enable-memprof-context-disambiguation \
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; RUN: -supports-hot-cold-new \
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; RUN: -thinlto-distributed-indexes \
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; RUN: -r=%t.o,main,plx \
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; RUN: -r=%t.o,_Znam, \
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; RUN: -o %t2.out
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;; Run ThinLTO backend
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; RUN: opt -passes=memprof-context-disambiguation \
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; RUN: -memprof-import-summary=%t.o.thinlto.bc \
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; RUN: -pass-remarks=memprof-context-disambiguation \
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; RUN: %t.o -S 2>&1 | FileCheck %s --check-prefix=IR
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source_filename = "memprof-distrib-alias.ll"
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target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-unknown-linux-gnu"
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define i32 @main() #0 {
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entry:
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;; The first call to fooAlias does not allocate cold memory. It should call
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;; the original function alias, which calls the original allocation decorated
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;; with a "notcold" attribute.
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; IR: call {{.*}} @_Z8fooAliasv()
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%call = call ptr @_Z8fooAliasv(), !callsite !0
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;; The second call to fooAlias allocates cold memory. It should call the
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;; cloned function which calls a cloned allocation decorated with a "cold"
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;; attribute.
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; IR: call {{.*}} @_Z3foov.memprof.1()
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%call1 = call ptr @_Z8fooAliasv(), !callsite !1
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ret i32 0
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}
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; IR: define internal {{.*}} @_Z3foov()
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; IR: call {{.*}} @_Znam(i64 0) #[[NOTCOLD:[0-9]+]]
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; IR: define internal {{.*}} @_Z3foov.memprof.1()
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; IR: call {{.*}} @_Znam(i64 0) #[[COLD:[0-9]+]]
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; IR: attributes #[[NOTCOLD]] = { "memprof"="notcold" }
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; IR: attributes #[[COLD]] = { "memprof"="cold" }
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declare ptr @_Znam(i64)
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@_Z8fooAliasv = internal alias ptr (...), ptr @_Z3foov
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define internal ptr @_Z3foov() #0 {
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entry:
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%call = call ptr @_Znam(i64 0), !memprof !2, !callsite !7
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ret ptr null
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}
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attributes #0 = { noinline optnone }
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!0 = !{i64 8632435727821051414}
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!1 = !{i64 -3421689549917153178}
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!2 = !{!3, !5}
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!3 = !{!4, !"notcold"}
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!4 = !{i64 9086428284934609951, i64 8632435727821051414}
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!5 = !{!6, !"cold"}
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!6 = !{i64 9086428284934609951, i64 -3421689549917153178}
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!7 = !{i64 9086428284934609951}
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