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* tree.c (handle_dll_attribute): Move here from i383/winnt.c. Replace use of DECL_INLINE with DECL_DECLARED_INLINE_P. Set DECL_VISIBLITY. Test TARGET_DLLIMPORT_DECL_ATTRIBUTES with #if. * tree.h (handle_dll_attribute): Declare. Test TARGET_DLLIMPORT_DECL_ATTRIBUTES with #if. * c-common.h (c_determine_visibility): Declare. * c-common.c (c_determine_visibility): New function. * c-decl.c (finish_decl): Use it. (finish_function): Likewise. * defaults.h (TARGET_DLLIMPORT_DECL_ATTRIBUTES): Define it to zero, by default. Use #if, not #ifdef, to test it. * config/arm/arm.c (arm_attribute_table): Use handle_dll_attribute. Test TARGET_DLLIMPORT_DECL_ATTRIBUTES with #if. * config/arm/pe.h (TARGET_DLLIMPORT_DECL_ATTRIBUTES): Define to 1. * config/i386/cygming.h (TARGET_DLLIMPORT_DECL_ATTRIBUTES): Define to 1. * config/i386/i386-protos.h (ix86_handle_dll_attribute): Remove. * config/i386/i386.c (ix86_attribute_table): Use handle_dll_attribute for dllimport/dllexport. Test TARGET_DLLIMPORT_DECL_ATTRIBUTES with #if. * config/i386/winnt.c (ix86_handle_dll_attribute): Remove. * config/mcore/mcore.h (TARGET_DLLIMPORT_DECL_ATTRIBUTES): Define it to 1. * config/mcore/mcore.c (TARGET_DLLIMPORT_DECL_ATTRIBUTES): Test it with #if. * config/sh/symbian-pre.h (TARGET_DLLIMPORT_DECL_ATTRIBUTES): Define it to 1. * doc/extend.texi (dllexport): Clarify and correct documentation. (dllimport): Likewise. * doc/tm.texi (TARGET_DLLIMPORT_DECL_ATTRIBUTES): Mention handle_dll_attribute. * decl.c (start_preparsed_function): Move determine_visibility call. * decl2.c (determine_visibility): Incorporate dllexport testing. * g++.dg/ext/visibility/assign1.C: Use scan-hidden and dg-require-visiblity. * g++.dg/ext/visibility/fvisibility-inlines-hidden.C: Likewise. * g++.dg/ext/visibility/fvisibility.C: Likewise. * g++.dg/ext/visibility/memfuncts.C: Likewise. * g++.dg/ext/visibility/new1.C: Likewise. * g++.dg/ext/visibility/pragma.C: Likewise. * g++.dg/ext/visibility/staticmemfuncts.C: Likewise. * g++.dg/ext/visibility/virtual.C: Likewise. * g++/dg/ext/visibility/visibility-1.C: Likewise. * g++/dg/ext/visibility/visibility-2.C: Likewise. * g++/dg/ext/visibility/visibility-3.C: Likewise. * g++/dg/ext/visibility/visibility-4.C: Likewise. * g++/dg/ext/visibility/visibility-5.C: Likewise. * g++/dg/ext/visibility/visibility-6.C: Likewise. * g++/dg/ext/visibility/visibility-7.C: Likewise. * g++/dg/ext/visibility/visibility-8.C: New test. * gcc.c-torture/compile/dll.x: Remove. * gcc.dg/dll-2.c: Use dg-require-dll * gcc.dg/visibility-10.c: New test. * lib/gcc-dg.exp (dg-require-dll): Add Symbian to list of targets supporting DLLs. * testsuite/lib/scanasm.exp (scan_hidden): New function. (scan_not_hidden): Likewise. From-SVN: r85621
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