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r263863 - in /trunk/gcc: ChangeLog c-family/Cha...
- From: mpolacek at gcc dot gnu dot org
- To: gcc-cvs at gcc dot gnu dot org
- Date: Sun, 26 Aug 2018 16:45:52 -0000
- Subject: r263863 - in /trunk/gcc: ChangeLog c-family/Cha...
Author: mpolacek
Date: Sun Aug 26 16:45:51 2018
New Revision: 263863
URL: https://gcc.gnu.org/viewcvs?rev=263863&root=gcc&view=rev
Log:
PR c++/87029, Implement -Wredundant-move.
* c.opt (Wredundant-move): New option.
* typeck.c (treat_lvalue_as_rvalue_p): New function.
(maybe_warn_pessimizing_move): Call convert_from_reference.
Warn about redundant moves.
* doc/invoke.texi: Document -Wredundant-move.
* g++.dg/cpp0x/Wredundant-move1.C: New test.
* g++.dg/cpp0x/Wredundant-move2.C: New test.
* g++.dg/cpp0x/Wredundant-move3.C: New test.
* g++.dg/cpp0x/Wredundant-move4.C: New test.
Added:
trunk/gcc/testsuite/g++.dg/cpp0x/Wredundant-move1.C
trunk/gcc/testsuite/g++.dg/cpp0x/Wredundant-move2.C
trunk/gcc/testsuite/g++.dg/cpp0x/Wredundant-move3.C
trunk/gcc/testsuite/g++.dg/cpp0x/Wredundant-move4.C
Modified:
trunk/gcc/ChangeLog
trunk/gcc/c-family/ChangeLog
trunk/gcc/c-family/c.opt
trunk/gcc/cp/ChangeLog
trunk/gcc/cp/typeck.c
trunk/gcc/doc/invoke.texi
trunk/gcc/testsuite/ChangeLog