derek.holloway
7502bf64a4
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107 lines
3.4 KiB
LLVM
107 lines
3.4 KiB
LLVM
; REQUIRES: x86
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;; Check that we internalize bitcode symbols (only) where possible, i.e. when
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;; they are not referenced by undefined symbols originating from non-bitcode
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;; files.
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; RUN: rm -rf %t; split-file %s %t
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; RUN: llvm-as %t/test.s -o %t/test.o
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; RUN: llvm-as %t/baz.s -o %t/baz.o
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; RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %t/regular.s -o %t/regular.o
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; RUN: %lld -lSystem %t/test.o %t/baz.o %t/regular.o -o %t/test -save-temps
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; RUN: llvm-dis < %t/test.0.2.internalize.bc | FileCheck %s
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; RUN: llvm-objdump --macho --syms %t/test | FileCheck %s --check-prefix=SYMTAB
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; CHECK: @comm = internal global
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; CHECK: @comm_hide = internal global
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;; Check that main is not internalized. This covers the case of bitcode symbols
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;; referenced by undefined symbols that don't belong to any InputFile.
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; CHECK: define dso_local void @main()
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;; Check that the foo and bar functions are correctly internalized.
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; CHECK: define internal void @bar()
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; CHECK: define internal void @foo()
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;; Check that a bitcode symbol that is referenced by a regular object file isn't
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;; internalized.
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; CHECK: define dso_local void @used_in_regular_obj()
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;; Check that a bitcode symbol that is defined in another bitcode file gets
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;; internalized.
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; CHECK: define internal void @baz()
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;; Check that all internalized symbols are not emitted to the symtab
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; SYMTAB-LABEL: SYMBOL TABLE:
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; SYMTAB-DAG: g F __TEXT,__text _main
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; SYMTAB-DAG: g F __TEXT,__text _used_in_regular_obj
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; SYMTAB-DAG: g F __TEXT,__text __mh_execute_header
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; SYMTAB-DAG: *UND* dyld_stub_binder
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; SYMTAB-EMPTY:
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; RUN: %lld -lSystem -dylib %t/test.o %t/baz.o %t/regular.o -o %t/test.dylib -save-temps
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; RUN: llvm-dis < %t/test.dylib.0.2.internalize.bc | FileCheck %s --check-prefix=DYN
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; RUN: llvm-nm -m %t/test.dylib | FileCheck %s --check-prefix=DYN-SYMS \
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; RUN: --implicit-check-not _foo
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; RUN: %lld -lSystem -export_dynamic %t/test.o %t/baz.o %t/regular.o -o %t/test.extdyn -save-temps
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; RUN: llvm-dis < %t/test.extdyn.0.2.internalize.bc
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; RUN: llvm-nm -m %t/test.extdyn | FileCheck %s --check-prefix=DYN-SYMS \
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; RUN: --implicit-check-not _foo
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;; Note that only foo() gets internalized here; everything else that isn't
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;; hidden must be exported.
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; DYN: @comm = common dso_local global
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; DYN: @comm_hide = internal global
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; DYN: define dso_local void @main()
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; DYN: define dso_local void @bar()
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; DYN: define internal void @foo()
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; DYN: define dso_local void @used_in_regular_obj()
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; DYN: define dso_local void @baz()
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; DYN-SYMS-DAG: (__TEXT,__text) external _bar
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; DYN-SYMS-DAG: (__TEXT,__text) external _baz
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; DYN-SYMS-DAG: (__DATA,__common) external _comm
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; DYN-SYMS-DAG: (__TEXT,__text) external _main
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; DYN-SYMS-DAG: (__TEXT,__text) external _used_in_regular_obj
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;--- test.s
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target triple = "x86_64-apple-macosx10.15.0"
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target datalayout = "e-m:o-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
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;; Common symbols are always external.
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@comm = common global i8 0, align 1
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@comm_hide = common hidden global i8 0, align 1
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declare void @baz()
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define void @main() {
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call void @bar()
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call void @baz()
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ret void
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}
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define void @bar() {
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ret void
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}
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define hidden void @foo() {
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ret void
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}
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define void @used_in_regular_obj() {
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ret void
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}
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;--- baz.s
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target triple = "x86_64-apple-macosx10.15.0"
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target datalayout = "e-m:o-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
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define void @baz() {
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ret void
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}
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;--- regular.s
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.data
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.quad _used_in_regular_obj
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