* opts.h (CL_PCH_IGNORE): Define.
        * targhooks.c (option_affects_pch_p):
        Return false for options that have CL_PCH_IGNORE set.
        * opt-functions.awk: Process PchIgnore.
        * doc/options.texi: Document PchIgnore.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@208292 138bc75d-0d04-0410-961f-82ee72b054a4
        * config/arc/arc.opt (misize): Add PchIgnore property.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@208293 138bc75d-0d04-0410-961f-82ee72b054a4
        * config/arc/arc.md (casesi_load) <length attribute alternative 0>:
        Mark as varying.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@208294 138bc75d-0d04-0410-961f-82ee72b054a4
	* config/i386/xmmintrin.h (enum _mm_hint) <_MM_HINT_ET0>: Correct
	hint value.
	(_mm_prefetch): Move out of GCC target("sse") pragma.
	* config/i386/prfchwintrin.h (_m_prefetchw): Move out of
	GCC target("prfchw") pragma.
	* config/i386/i386.md (prefetch): Emit prefetchwt1 only
	for locality <= 2.
	* config/i386/i386.c (ix86_option_override_internal): Enable
	-mprfchw with -mprefetchwt1.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@208296 138bc75d-0d04-0410-961f-82ee72b054a4
Daily bump.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@208299 138bc75d-0d04-0410-961f-82ee72b054a4
Merge branch 'master' of https://github.com/mirrors/gcc
2014-03-03  Ian Lance Taylor  <iant@google.com>

        * go-gcc.cc (Gcc_backend::immutable_struct): If IS_COMMON, set
        DECL_WEAK.
        (GCC_backend::immutable_struct_set_init): If IS_COMMON, clear
        DECL_WEAK.
Merge branch 'master' into chan_recv
https://codereview.appspot.com/69140045/#msg5