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Remove LLVM_GLOBAL_VISIBILITY, which is unused, and was not working properly.

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The problem was that the test for whether a compiler supports it or not was
inaccurate, but has to be accurate: LLVM_LOCAL_VISIBILITY is an optimization
and not needed for correctness, so wrongly thinking a compiler doesn't support
it is not a big deal, but LLVM_GLOBAL_VISIBILITY is for correctness, and not
an optimization: getting it wrong is fatal: it needs to be set based on a
configure test not testing the gcc version.  Since dragonegg has moved to a
different scheme, and it was the only user of LLVM_GLOBAL_VISIBILITY, just
remove this macro.

llvm-svn: 113959
This commit is contained in:
Duncan Sands 2010-09-15 08:09:55 +00:00
parent fff8e3495b
commit e2be7b75b2
1 changed files with 1 additions and 11 deletions
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12
include/llvm/Support/Compiler.h
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@ -19,20 +19,10 @@
/// into a shared library, then the class should be private to the library and
/// not accessible from outside it. Can also be used to mark variables and
/// functions, making them private to any shared library they are linked into.
/// LLVM_GLOBAL_VISIBILITY - If a class marked with this attribute is linked
/// into a shared library, then the class will be accessible from outside the
/// the library. Can also be used to mark variables and functions, making them
/// accessible from outside any shared library they are linked into.
#if defined(__MINGW32__) || defined(__CYGWIN__)
#define LLVM_LIBRARY_VISIBILITY
#define LLVM_GLOBAL_VISIBILITY __declspec(dllexport)
#elif (__GNUC__ >= 4)
#if (__GNUC__ >= 4) && !defined(__MINGW32__) && !defined(__CYGWIN__)
#define LLVM_LIBRARY_VISIBILITY __attribute__ ((visibility("hidden")))
#define LLVM_GLOBAL_VISIBILITY __attribute__ ((visibility("default")))
#else
#define LLVM_LIBRARY_VISIBILITY
#define LLVM_GLOBAL_VISIBILITY
#endif
#if (__GNUC__ >= 4 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 1))