2016-08-28  Tom de Vries  <tom@codesourcery.com>

	PR lto/70955
	* config/i386/i386.c (ix86_build_builtin_va_list_64): Tag type with
	'sysv_abi va_list' attribute.
	(ix86_build_builtin_va_list): Tag type with 'ms_abi va_list' attribute.
	(ix86_canonical_va_list_type): Handle 'sysv_abi/ms_abi va_list'
	attributes.

	* gcc.dg/pr70955.c: New test.
	* gcc.dg/lto/pr70955_0.c: Same.
	* gcc.dg/lto/pr70955_1.c: Same.

From-SVN: r239805