r250366 - in /trunk/libstdc++-v3: ChangeLog inc...

[redi@gcc.gnu.org]

Author: redi
Date: Wed Jul 19 19:32:15 2017
New Revision: 250366

URL: https://gcc.gnu.org/viewcvs?rev=250366&root=gcc&view=rev
Log:
PR libstdc++/81476 Optimise vector insertion from input iterators

	PR libstdc++/81476
	* include/bits/vector.tcc (vector::_M_range_insert<_InputIterator>):
	Only insert elements one-by-one when inserting at the end.
	* testsuite/performance/23_containers/insert/81476.cc: New.

Added:
    trunk/libstdc++-v3/testsuite/performance/23_containers/insert/81476.cc
Modified:
    trunk/libstdc++-v3/ChangeLog
    trunk/libstdc++-v3/include/bits/vector.tcc