derek.holloway
7502bf64a4
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61 lines
3.1 KiB
LLVM
61 lines
3.1 KiB
LLVM
;; Test comdat functions.
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; RUN: opt < %s -mtriple=x86_64-linux -passes=pgo-instr-gen,instrprof -S | FileCheck %s --check-prefixes=ELF
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; RUN: opt < %s -mtriple=x86_64-windows -passes=pgo-instr-gen,instrprof -S | FileCheck %s --check-prefixes=COFF
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$linkonceodr = comdat any
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$weakodr = comdat any
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$weak = comdat any
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$linkonce = comdat any
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;; profc/profd have hash suffixes. This definition doesn't have value profiling,
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;; so definitions with the same name in other modules must have the same CFG and
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;; cannot have value profiling, either. profd can be made private for ELF.
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; ELF: @__profc_linkonceodr.[[#]] = linkonce_odr hidden global {{.*}} comdat, align 8
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; ELF: @__profd_linkonceodr.[[#]] = private global {{.*}} comdat($__profc_linkonceodr.[[#]]), align 8
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; COFF: @__profc_linkonceodr.[[#]] = linkonce_odr hidden global {{.*}} comdat, align 8
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; COFF: @__profd_linkonceodr.[[#]] = linkonce_odr hidden global {{.*}} comdat, align 8
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define linkonce_odr void @linkonceodr() comdat {
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ret void
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}
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;; weakodr in a comdat is not renamed. There is no guarantee that definitions in
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;; other modules don't have value profiling. profd should be conservatively
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;; non-private to prevent a caller from referencing a non-prevailing profd,
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;; causing a linker error.
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; ELF: @__profc_weakodr = weak_odr hidden global {{.*}} comdat, align 8
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; ELF: @__profd_weakodr = weak_odr hidden global {{.*}} comdat($__profc_weakodr), align 8
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; COFF: @__profc_weakodr = weak_odr hidden global {{.*}} comdat, align 8
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; COFF: @__profd_weakodr = weak_odr hidden global {{.*}} comdat, align 8
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define weak_odr void @weakodr() comdat {
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ret void
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}
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;; weak in a comdat is not renamed. There is no guarantee that definitions in
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;; other modules don't have value profiling. profd should be conservatively
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;; non-private to prevent a caller from referencing a non-prevailing profd,
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;; causing a linker error.
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; ELF: @__profc_weak = weak hidden global {{.*}} comdat, align 8
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; ELF: @__profd_weak = weak hidden global {{.*}} comdat($__profc_weak), align 8
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; COFF: @__profc_weak = weak hidden global {{.*}} comdat, align 8
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; COFF: @__profd_weak = weak hidden global {{.*}} comdat, align 8
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define weak void @weak() comdat {
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ret void
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}
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;; profc/profd have hash suffixes. This definition doesn't have value profiling,
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;; so definitions with the same name in other modules must have the same CFG and
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;; cannot have value profiling, either. profd can be made private for ELF.
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; ELF: @__profc_linkonce.[[#]] = linkonce hidden global {{.*}} comdat, align 8
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; ELF: @__profd_linkonce.[[#]] = private global {{.*}} comdat($__profc_linkonce.[[#]]), align 8
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; COFF: @__profc_linkonce.[[#]] = linkonce hidden global {{.*}} comdat, align 8
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; COFF: @__profd_linkonce.[[#]] = linkonce hidden global {{.*}} comdat, align 8
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define linkonce void @linkonce() comdat {
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ret void
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}
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; Check that comdat aliases are hidden for all linkage types
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; ELF: @linkonceodr.local = linkonce_odr hidden alias void (), ptr @linkonceodr
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; ELF: @weakodr.local = weak_odr hidden alias void (), ptr @weakodr
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; ELF: @weak.local = weak hidden alias void (), ptr @weak
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; ELF: @linkonce.local = linkonce hidden alias void (), ptr @linkonce
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