Reid Kleckner ca4ed882f4 Reland "Use Clang's __has_* macros in Compiler.h ..." with fixes
This reverts r185841 and relands r185831 without using
__has_attribute(const).

Clang prior to r161767 (between 3.1 and 3.2) does not accept
__has_attribute(const) due to rdar://10253857.  __const and __const__
are both keyword aliases of const, so they don't work either.

I was able to repro the buildbot failure using clang 3.1 and this patch
fixes it.  Various important versions of XCode use clang 2.9-ish, so
this workaround is necessary.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185850 91177308-0d34-0410-b5e6-96231b3b80d8
2013-07-08 19:06:25 +00:00
2013-07-08 18:33:29 +00:00
2013-06-18 22:09:36 +00:00

Low Level Virtual Machine (LLVM)
================================

This directory and its subdirectories contain source code for the Low Level
Virtual Machine, a toolkit for the construction of highly optimized compilers,
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Please see the documentation provided in docs/ for further
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