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Author SHA1 Message Date
Charles Davis c7d5c94f78 Support __builtin_ms_va_list. 
Summary:
This change adds support for `__builtin_ms_va_list`, a GCC extension for
variadic `ms_abi` functions. The existing `__builtin_va_list` support is
inadequate for this because `va_list` is defined differently in the Win64
ABI vs. the System V/AMD64 ABI.

Depends on D1622.

Reviewers: rsmith, rnk, rjmccall

CC: cfe-commits

Differential Revision: http://reviews.llvm.org/D1623

llvm-svn: 247941
 2015-09-17 20:55:33 +00:00
Charles Davis b5a214e4f3 Add ms_abi and sysv_abi attribute handling. 
Based on a patch by Benno Rice!

llvm-svn: 189644
 2013-08-30 04:39:01 +00:00