llvm-6502/test/Bitcode/linkage-types-3.2.ll
Nico Rieck 38f68c5a2e Decouple dllexport/dllimport from linkage
Representing dllexport/dllimport as distinct linkage types prevents using
these attributes on templates and inline functions.

Instead of introducing further mixed linkage types to include linkonce and
weak ODR, the old import/export linkage types are replaced with a new
separate visibility-like specifier:

  define available_externally dllimport void @f() {}
  @Var = dllexport global i32 1, align 4

Linkage for dllexported globals and functions is now equal to their linkage
without dllexport. Imported globals and functions must be either
declarations with external linkage, or definitions with
AvailableExternallyLinkage.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199218 91177308-0d34-0410-b5e6-96231b3b80d8
2014-01-14 15:22:47 +00:00

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3.1 KiB
LLVM

; RUN: llvm-dis < %s.bc| FileCheck %s
; linkage-types-3.2.ll.bc was generated by passing this file to llvm-as-3.2
; The test checks that LLVM does not silently misread linkage types of
; older bitcode files.
@common.var = common global i32 0
; CHECK: @common.var = common global i32 0
@appending.var = appending global [8 x i32] undef
; CHECK: @appending.var = appending global [8 x i32] undef
@extern_weak.var = extern_weak global i32
; CHECK: @extern_weak.var = extern_weak global i32
@private.var = private constant i32 0
; CHECK: @private.var = private constant i32 0
@linker_private.var = linker_private constant i32 0
; CHECK: @linker_private.var = linker_private constant i32 0
@linker_private_weak.var = linker_private_weak constant i32 0
; CHECK: @linker_private_weak.var = linker_private_weak constant i32 0
@linker_private_weak_def_auto.var = linker_private_weak_def_auto constant i32 0
; CHECK: @linker_private_weak_def_auto.var = constant i32 0
@internal.var = internal constant i32 0
; CHECK: @internal.var = internal constant i32 0
@available_externally.var = available_externally constant i32 0
; CHECK: @available_externally.var = available_externally constant i32 0
@linkonce.var = linkonce constant i32 0
; CHECK: @linkonce.var = linkonce constant i32 0
@weak.var = weak constant i32 0
; CHECK: @weak.var = weak constant i32 0
@linkonce_odr.var = linkonce_odr constant i32 0
; CHECK: @linkonce_odr.var = linkonce_odr constant i32 0
@linkonce_odr_auto_hide.var = linkonce_odr_auto_hide constant i32 0
; CHECK: @linkonce_odr_auto_hide.var = constant i32 0
@external.var = external constant i32
; CHECK: @external.var = external constant i32
@dllexport.var = dllexport global i32 0
; CHECK: @dllexport.var = dllexport global i32 0
@dllimport.var = dllimport global i32
; CHECK: @dllimport.var = external dllimport global i32
define private void @private()
; CHECK: define private void @private
{
ret void;
}
define linker_private void @linker_private()
; CHECK: define linker_private void @linker_private
{
ret void;
}
define linker_private_weak void @linker_private_weak()
; CHECK: define linker_private_weak void @linker_private_weak
{
ret void;
}
define linker_private_weak_def_auto void @linker_private_weak_def_auto()
; CHECK: define void @linker_private_weak_def_auto
{
ret void;
}
define internal void @internal()
; CHECK: define internal void @internal
{
ret void;
}
define available_externally void @available_externally()
; CHECK: define available_externally void @available_externally
{
ret void;
}
define linkonce void @linkonce()
; CHECK: define linkonce void @linkonce
{
ret void;
}
define weak void @weak()
; CHECK: define weak void @weak
{
ret void;
}
define linkonce_odr void @linkonce_odr()
; CHECK: define linkonce_odr void @linkonce_odr
{
ret void;
}
define linkonce_odr_auto_hide void @linkonce_odr_auto_hide()
; CHECK: define void @linkonce_odr_auto_hide
{
ret void;
}
define external void @external()
; CHECK: define void @external
{
ret void;
}
declare dllimport void @dllimport()
; CHECK: declare dllimport void @dllimport
define dllexport void @dllexport()
; CHECK: define dllexport void @dllexport()
{
ret void;
}