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[Bug middle-end/70140] Inefficient expansion of __builtin_mempcpy
- From: "marxin at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Tue, 01 Aug 2017 11:59:59 +0000
- Subject: [Bug middle-end/70140] Inefficient expansion of __builtin_mempcpy
- Auto-submitted: auto-generated
- References: <bug-70140-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70140
--- Comment #12 from Martin Liška <marxin at gcc dot gnu.org> ---
Author: marxin
Date: Tue Aug 1 11:59:27 2017
New Revision: 250771
URL: https://gcc.gnu.org/viewcvs?rev=250771&root=gcc&view=rev
Log:
Make mempcpy more optimal (PR middle-end/70140).
2017-08-01 Martin Liska <mliska@suse.cz>
PR middle-end/70140
* gcc.dg/string-opt-1.c: Adjust test-case to scan for memcpy.
2017-08-01 Martin Liska <mliska@suse.cz>
PR middle-end/70140
* builtins.c (expand_builtin_memcpy_args): Remove.
(expand_builtin_memcpy): Call newly added function
expand_builtin_memory_copy_args.
(expand_builtin_memcpy_with_bounds): Likewise.
(expand_builtin_mempcpy): Remove last argument.
(expand_builtin_mempcpy_with_bounds): Likewise.
(expand_builtin_memory_copy_args): New function created from
expand_builtin_mempcpy_args with small modifications.
(expand_builtin_mempcpy_args): Remove.
(expand_builtin_stpcpy): Remove unused argument.
(expand_builtin): Likewise.
(expand_builtin_with_bounds): Likewise.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/builtins.c
trunk/gcc/testsuite/ChangeLog
trunk/gcc/testsuite/gcc.dg/string-opt-1.c