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| author | Martin Liska <mliska@suse.cz> | 2019-05-20 09:55:00 +0200 |
|---|---|---|
| committer | Martin Liska <marxin@gcc.gnu.org> | 2019-05-20 07:55:00 +0000 |
| commit | db91c7cf3d97a169d4e1c463d87a9f2007c40761 (patch) | |
| tree | 11aa3bde6da1520b48d1a2a0cbf8e580e67e0c11 /gcc/doc/tm.texi | |
| parent | 03105885b1502a971955908255c722df5be0dafd (diff) | |
| download | gcc-db91c7cf3d97a169d4e1c463d87a9f2007c40761.zip gcc-db91c7cf3d97a169d4e1c463d87a9f2007c40761.tar.gz gcc-db91c7cf3d97a169d4e1c463d87a9f2007c40761.tar.bz2 | |
Come up with hook libc_has_fast_function (PR middle-end/90263).
2019-05-20 Martin Liska <mliska@suse.cz>
PR middle-end/90263
* builtins.c (expand_builtin_memory_copy_args): When having a
target with fast mempcpy implementation do now use memcpy.
* config/i386/i386.c (ix86_libc_has_fast_function): New.
(TARGET_LIBC_HAS_FAST_FUNCTION): Likewise.
* doc/tm.texi: Likewise.
* doc/tm.texi.in: Likewise.
* target.def:
* expr.c (emit_block_move_hints): Add 2 new arguments.
* expr.h (emit_block_move_hints): Bail out when libcall
to memcpy would be used.
2019-05-20 Martin Liska <mliska@suse.cz>
PR middle-end/90263
* gcc.c-torture/compile/pr90263.c: New test.
* lib/target-supports.exp: Add check_effective_target_glibc.
From-SVN: r271400
Diffstat (limited to 'gcc/doc/tm.texi')
| -rw-r--r-- | gcc/doc/tm.texi | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/gcc/doc/tm.texi b/gcc/doc/tm.texi index 8c8978b..0941039 100644 --- a/gcc/doc/tm.texi +++ b/gcc/doc/tm.texi @@ -5594,6 +5594,11 @@ This hook determines whether a function from a class of functions @var{fn_class} is present at the runtime. @end deftypefn +@deftypefn {Target Hook} bool TARGET_LIBC_HAS_FAST_FUNCTION (int @var{fcode}) +This hook determines whether a function from a class of functions +@var{fn_class} has a fast implementation. +@end deftypefn + @defmac NEXT_OBJC_RUNTIME Set this macro to 1 to use the "NeXT" Objective-C message sending conventions by default. This calling convention involves passing the object, the selector |