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105 lines
3.6 KiB
LLVM
105 lines
3.6 KiB
LLVM
; RUN: opt -module-summary %s -o %t.o
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; RUN: opt -module-summary %p/Inputs/thinlto_weak_resolution.ll -o %t2.o
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; Verify that prevailing weak for linker symbol is kept.
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; Note that gold picks the first copy of a function as the prevailing one,
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; so listing %t.o first is sufficient to ensure that its copies are prevailing.
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; RUN: %gold -m elf_x86_64 -plugin %llvmshlibdir/LLVMgold%shlibext \
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; RUN: --plugin-opt=thinlto \
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; RUN: --plugin-opt=save-temps \
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; RUN: -shared \
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; RUN: -o %t3.o %t.o %t2.o
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; RUN: llvm-nm %t3.o | FileCheck %s
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; CHECK: weakfunc
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; The preempted functions should have been eliminated (the plugin will
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; set linkage of odr functions to available_externally, and convert
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; linkonce and weak to declarations).
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; RUN: llvm-dis %t2.o.4.opt.bc -o - | FileCheck --check-prefix=OPT2 %s
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; OPT2-NOT: @
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; RUN: llvm-dis %t.o.3.import.bc -o - | FileCheck --check-prefix=IMPORT %s
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; RUN: llvm-dis %t2.o.3.import.bc -o - | FileCheck --check-prefix=IMPORT2 %s
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target datalayout = "e-m:e-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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call void @linkonceodralias()
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call void @linkoncealias()
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call void @linkonceodrfuncwithalias()
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call void @linkoncefuncwithalias()
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call void @linkonceodrfunc()
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call void @linkoncefunc()
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call void @weakodrfunc()
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call void @weakfunc()
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call void @linkonceodrfuncInSingleModule()
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ret i32 0
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}
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; Alias are resolved to weak_odr in prevailing module, but left as linkonce_odr
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; in non-prevailing module (illegal to have an available_externally alias).
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; IMPORT: @linkonceodralias = weak_odr alias void (), void ()* @linkonceodrfuncwithalias
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; IMPORT2: @linkonceodralias = linkonce_odr alias void (), void ()* @linkonceodrfuncwithalias
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@linkonceodralias = linkonce_odr alias void (), void ()* @linkonceodrfuncwithalias
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; Alias are resolved in prevailing module, but not optimized in
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; non-prevailing module (illegal to have an available_externally alias).
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; IMPORT: @linkoncealias = weak alias void (), void ()* @linkoncefuncwithalias
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; IMPORT2: @linkoncealias = linkonce alias void (), void ()* @linkoncefuncwithalias
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@linkoncealias = linkonce alias void (), void ()* @linkoncefuncwithalias
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; Function with an alias are resolved in prevailing module, but
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; not optimized in non-prevailing module (illegal to have an
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; available_externally aliasee).
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; IMPORT: define weak_odr void @linkonceodrfuncwithalias()
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; IMPORT2: define linkonce_odr void @linkonceodrfuncwithalias()
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define linkonce_odr void @linkonceodrfuncwithalias() #0 {
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entry:
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ret void
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}
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; Function with an alias are resolved to weak in prevailing module, but
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; not optimized in non-prevailing module (illegal to have an
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; available_externally aliasee).
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; IMPORT: define weak void @linkoncefuncwithalias()
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; IMPORT2: define linkonce void @linkoncefuncwithalias()
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define linkonce void @linkoncefuncwithalias() #0 {
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entry:
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ret void
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}
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; IMPORT: define weak_odr void @linkonceodrfunc()
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; IMPORT2: define available_externally void @linkonceodrfunc()
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define linkonce_odr void @linkonceodrfunc() #0 {
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entry:
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ret void
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}
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; IMPORT: define weak void @linkoncefunc()
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; IMPORT2: declare void @linkoncefunc()
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define linkonce void @linkoncefunc() #0 {
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entry:
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ret void
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}
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; IMPORT: define weak_odr void @weakodrfunc()
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; IMPORT2: define available_externally void @weakodrfunc()
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define weak_odr void @weakodrfunc() #0 {
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entry:
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ret void
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}
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; IMPORT: define weak void @weakfunc()
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; IMPORT2: declare void @weakfunc()
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define weak void @weakfunc() #0 {
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entry:
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ret void
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}
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; IMPORT: weak_odr void @linkonceodrfuncInSingleModule()
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define linkonce_odr void @linkonceodrfuncInSingleModule() #0 {
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entry:
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ret void
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}
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