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86c526e25e
This help to streamline the process of handling importing since we don't need to special case alias everywhere: just like linkonce_odr function, make sure at least one alias is emitted by turning it weak. Differential Revision: http://reviews.llvm.org/D19308 From: Mehdi Amini <mehdi.amini@apple.com> llvm-svn: 266958
169 lines
8.9 KiB
LLVM
169 lines
8.9 KiB
LLVM
; RUN: opt -module-summary %s -o %t1.bc
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; RUN: opt -module-summary %p/Inputs/alias_import.ll -o %t2.bc
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; RUN: llvm-lto -thinlto-action=thinlink -o %t.index.bc %t1.bc %t2.bc
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; RUN: llvm-lto -thinlto-action=promote -thinlto-index %t.index.bc %t2.bc -o - | llvm-dis -o - | FileCheck %s --check-prefix=PROMOTE
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; RUN: llvm-lto -thinlto-action=import -thinlto-index %t.index.bc %t1.bc -o - | llvm-dis -o - | FileCheck %s --check-prefix=IMPORT
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;
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; Alias can't point to "available_externally", so we can only import an alias
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; when we can import the aliasee with a linkage that won't be
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; available_externally, i.e linkOnceODR. (FIXME this limitation could be lifted)
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; PROMOTE-DAG: @globalfuncAlias = alias void (...), bitcast (void ()* @globalfunc to void (...)*)
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; PROMOTE-DAG: @globalfuncWeakAlias = weak alias void (...), bitcast (void ()* @globalfunc to void (...)*)
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; PROMOTE-DAG: @globalfuncLinkonceAlias = linkonce alias void (...), bitcast (void ()* @globalfunc to void (...)*)
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; PROMOTE-DAG: @globalfuncWeakODRAlias = weak_odr alias void (...), bitcast (void ()* @globalfunc to void (...)*)
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; PROMOTE-DAG: @globalfuncLinkonceODRAlias = linkonce_odr alias void (...), bitcast (void ()* @globalfunc to void (...)*)
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; PROMOTE-DAG: @internalfuncAlias = alias void (...), bitcast (void ()* @internalfunc.llvm.0 to void (...)*)
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; PROMOTE-DAG: @internalfuncWeakAlias = weak alias void (...), bitcast (void ()* @internalfunc.llvm.0 to void (...)*)
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; PROMOTE-DAG: @internalfuncLinkonceAlias = linkonce alias void (...), bitcast (void ()* @internalfunc.llvm.0 to void (...)*)
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; PROMOTE-DAG: @internalfuncWeakODRAlias = weak_odr alias void (...), bitcast (void ()* @internalfunc.llvm.0 to void (...)*)
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; PROMOTE-DAG: @internalfuncLinkonceODRAlias = linkonce_odr alias void (...), bitcast (void ()* @internalfunc.llvm.0 to void (...)*)
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; PROMOTE-DAG: @linkoncefuncAlias = alias void (...), bitcast (void ()* @linkoncefunc to void (...)*)
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; PROMOTE-DAG: @linkoncefuncWeakAlias = weak alias void (...), bitcast (void ()* @linkoncefunc to void (...)*)
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; PROMOTE-DAG: @linkoncefuncLinkonceAlias = linkonce alias void (...), bitcast (void ()* @linkoncefunc to void (...)*)
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; PROMOTE-DAG: @linkoncefuncWeakODRAlias = weak_odr alias void (...), bitcast (void ()* @linkoncefunc to void (...)*)
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; PROMOTE-DAG: @linkoncefuncLinkonceODRAlias = linkonce_odr alias void (...), bitcast (void ()* @linkoncefunc to void (...)*)
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; PROMOTE-DAG: @weakfuncAlias = alias void (...), bitcast (void ()* @weakfunc to void (...)*)
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; PROMOTE-DAG: @weakfuncWeakAlias = weak alias void (...), bitcast (void ()* @weakfunc to void (...)*)
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; PROMOTE-DAG: @weakfuncLinkonceAlias = linkonce alias void (...), bitcast (void ()* @weakfunc to void (...)*)
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; PROMOTE-DAG: @weakfuncWeakODRAlias = weak_odr alias void (...), bitcast (void ()* @weakfunc to void (...)*)
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; PROMOTE-DAG: @weakfuncLinkonceODRAlias = linkonce_odr alias void (...), bitcast (void ()* @weakfunc to void (...)*)
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; PROMOTE-DAG: @weakODRfuncAlias = alias void (...), bitcast (void ()* @weakODRfunc to void (...)*)
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; PROMOTE-DAG: @weakODRfuncWeakAlias = weak alias void (...), bitcast (void ()* @weakODRfunc to void (...)*)
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; PROMOTE-DAG: @weakODRfuncLinkonceAlias = linkonce alias void (...), bitcast (void ()* @weakODRfunc to void (...)*)
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; PROMOTE-DAG: @weakODRfuncWeakODRAlias = weak_odr alias void (...), bitcast (void ()* @weakODRfunc to void (...)*)
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; PROMOTE-DAG: @weakODRfuncLinkonceODRAlias = linkonce_odr alias void (...), bitcast (void ()* @weakODRfunc to void (...)*)
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; Only alias to LinkonceODR aliasee can be imported
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; PROMOTE-DAG: @linkonceODRfuncAlias = alias void (...), bitcast (void ()* @linkonceODRfunc to void (...)*)
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; PROMOTE-DAG: @linkonceODRfuncWeakAlias = weak alias void (...), bitcast (void ()* @linkonceODRfunc to void (...)*)
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; PROMOTE-DAG: @linkonceODRfuncWeakODRAlias = weak_odr alias void (...), bitcast (void ()* @linkonceODRfunc to void (...)*)
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; Amongst these that are imported, check that we promote only linkonce->weak
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; PROMOTE-DAG: @linkonceODRfuncLinkonceAlias = linkonce alias void (...), bitcast (void ()* @linkonceODRfunc to void (...)*)
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; PROMOTE-DAG: @linkonceODRfuncLinkonceODRAlias = weak_odr alias void (...), bitcast (void ()* @linkonceODRfunc to void (...)*)
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; These will be imported, check the linkage/renaming after promotion
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; PROMOTE-DAG: define void @globalfunc()
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; PROMOTE-DAG: define hidden void @internalfunc.llvm.0()
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; PROMOTE-DAG: define linkonce_odr void @linkonceODRfunc()
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; PROMOTE-DAG: define weak_odr void @weakODRfunc()
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; PROMOTE-DAG: define linkonce void @linkoncefunc()
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; PROMOTE-DAG: define weak void @weakfunc()
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; On the import side now, verify that aliases to a linkonce_odr are imported, but the weak (never import weak)
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; IMPORT-DAG: declare void @linkonceODRfuncWeakAlias
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; IMPORT-DAG: @linkonceODRfuncAlias = alias void (...), bitcast (void ()* @linkonceODRfunc to void (...)*)
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; IMPORT-DAG: @linkonceODRfuncLinkonceAlias = linkonce alias void (...), bitcast (void ()* @linkonceODRfunc to void (...)*)
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; IMPORT-DAG: @linkonceODRfuncWeakODRAlias = alias void (...), bitcast (void ()* @linkonceODRfunc to void (...)*)
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; IMPORT-DAG: @linkonceODRfuncLinkonceODRAlias = linkonce_odr alias void (...), bitcast (void ()* @linkonceODRfunc to void (...)*)
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; IMPORT-DAG: define linkonce_odr void @linkonceODRfunc()
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; On the import side, these aliases are not imported (they don't point to a linkonce_odr)
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; IMPORT-DAG: declare void @globalfuncAlias()
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; IMPORT-DAG: declare void @globalfuncWeakAlias()
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; IMPORT-DAG: declare void @globalfuncLinkonceAlias()
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; IMPORT-DAG: declare void @globalfuncWeakODRAlias()
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; IMPORT-DAG: declare void @globalfuncLinkonceODRAlias()
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; IMPORT-DAG: declare void @internalfuncAlias()
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; IMPORT-DAG: declare void @internalfuncWeakAlias()
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; IMPORT-DAG: declare void @internalfuncLinkonceAlias()
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; IMPORT-DAG: declare void @internalfuncWeakODRAlias()
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; IMPORT-DAG: declare void @internalfuncLinkonceODRAlias()
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; IMPORT-DAG: declare void @weakODRfuncAlias()
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; IMPORT-DAG: declare void @weakODRfuncWeakAlias()
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; IMPORT-DAG: declare void @weakODRfuncLinkonceAlias()
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; IMPORT-DAG: declare void @weakODRfuncWeakODRAlias()
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; IMPORT-DAG: declare void @weakODRfuncLinkonceODRAlias()
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; IMPORT-DAG: declare void @linkoncefuncAlias()
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; IMPORT-DAG: declare void @linkoncefuncWeakAlias()
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; IMPORT-DAG: declare void @linkoncefuncLinkonceAlias()
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; IMPORT-DAG: declare void @linkoncefuncWeakODRAlias()
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; IMPORT-DAG: declare void @linkoncefuncLinkonceODRAlias()
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; IMPORT-DAG: declare void @weakfuncAlias()
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; IMPORT-DAG: declare void @weakfuncWeakAlias()
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; IMPORT-DAG: declare void @weakfuncLinkonceAlias()
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; IMPORT-DAG: declare void @weakfuncWeakODRAlias()
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; IMPORT-DAG: declare void @weakfuncLinkonceODRAlias()
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define i32 @main() #0 {
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entry:
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call void @globalfuncAlias()
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call void @globalfuncWeakAlias()
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call void @globalfuncLinkonceAlias()
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call void @globalfuncWeakODRAlias()
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call void @globalfuncLinkonceODRAlias()
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call void @internalfuncAlias()
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call void @internalfuncWeakAlias()
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call void @internalfuncLinkonceAlias()
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call void @internalfuncWeakODRAlias()
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call void @internalfuncLinkonceODRAlias()
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call void @linkonceODRfuncAlias()
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call void @linkonceODRfuncWeakAlias()
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call void @linkonceODRfuncLinkonceAlias()
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call void @linkonceODRfuncWeakODRAlias()
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call void @linkonceODRfuncLinkonceODRAlias()
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call void @weakODRfuncAlias()
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call void @weakODRfuncWeakAlias()
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call void @weakODRfuncLinkonceAlias()
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call void @weakODRfuncWeakODRAlias()
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call void @weakODRfuncLinkonceODRAlias()
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call void @linkoncefuncAlias()
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call void @linkoncefuncWeakAlias()
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call void @linkoncefuncLinkonceAlias()
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call void @linkoncefuncWeakODRAlias()
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call void @linkoncefuncLinkonceODRAlias()
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call void @weakfuncAlias()
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call void @weakfuncWeakAlias()
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call void @weakfuncLinkonceAlias()
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call void @weakfuncWeakODRAlias()
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call void @weakfuncLinkonceODRAlias()
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ret i32 0
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}
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declare void @globalfuncAlias()
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declare void @globalfuncWeakAlias()
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declare void @globalfuncLinkonceAlias()
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declare void @globalfuncWeakODRAlias()
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declare void @globalfuncLinkonceODRAlias()
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declare void @internalfuncAlias()
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declare void @internalfuncWeakAlias()
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declare void @internalfuncLinkonceAlias()
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declare void @internalfuncWeakODRAlias()
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declare void @internalfuncLinkonceODRAlias()
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declare void @linkonceODRfuncAlias()
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declare void @linkonceODRfuncWeakAlias()
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declare void @linkonceODRfuncLinkonceAlias()
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declare void @linkonceODRfuncWeakODRAlias()
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declare void @linkonceODRfuncLinkonceODRAlias()
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declare void @weakODRfuncAlias()
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declare void @weakODRfuncWeakAlias()
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declare void @weakODRfuncLinkonceAlias()
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declare void @weakODRfuncWeakODRAlias()
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declare void @weakODRfuncLinkonceODRAlias()
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declare void @linkoncefuncAlias()
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declare void @linkoncefuncWeakAlias()
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declare void @linkoncefuncLinkonceAlias()
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declare void @linkoncefuncWeakODRAlias()
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declare void @linkoncefuncLinkonceODRAlias()
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declare void @weakfuncAlias()
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declare void @weakfuncWeakAlias()
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declare void @weakfuncLinkonceAlias()
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declare void @weakfuncWeakODRAlias()
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declare void @weakfuncLinkonceODRAlias()
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