2013-10-20  Chris Jefferson  <chris@bubblescope.net>
	    Paolo Carlini  <paolo.carlini@oracle.com>

	PR libstdc++/58800
	* include/bits/stl_algo.h (__unguarded_partition_pivot): Change
	__last - 2 to __last - 1.
	* testsuite/25_algorithms/nth_element/58800.cc: New


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@203872 138bc75d-0d04-0410-961f-82ee72b054a4
2013-10-20  Tim Shen  <timshen91@gmail.com>

	* include/bits/regex.h: Remove virtual class _Automaton.
	* include/bits/regex_automaton.h: Likewise.
	* include/bits/regex.tcc: Adjust comment for policy changing.
	* include/bits/regex_executor.h: Update comments of complexity.
	* include/bits/regex_executor.tcc: Adjust executor choosing
	policy. Now DFS executor is the default one.
	* testsuite/util/testsuite_regex.h (regex_match_debug,
	regex_search_debug): Adjust for policy changing.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@203875 138bc75d-0d04-0410-961f-82ee72b054a4
	* config/i386/x86-tune.def (X86_TUNE_SLOW_IMUL_IMM32_MEM,
	X86_TUNE_SLOW_IMUL_IMM8): Keep enabled only for K8 and AMDFAM10.
	(X86_TUNE_USE_VECTOR_FP_CONVERTS): Disable for generic.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@203876 138bc75d-0d04-0410-961f-82ee72b054a4