2017-01-17 10:38:48 +01:00
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2017-01-17 Jakub Jelinek <jakub@redhat.com>
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PR other/79046
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* configure.ac: Add GCC_BASE_VER.
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* Makefile.am (gcc_version): Use @get_gcc_base_ver@ instead of cat to
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get version from BASE-VER file.
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* testsuite/Makefile.in: Regenerated.
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* configure: Regenerated.
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* Makefile.in: Regenerated.
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2017-01-01 13:07:43 +01:00
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2017-01-01 Jakub Jelinek <jakub@redhat.com>
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Update copyright years.
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2016-11-15 17:34:02 +01:00
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2016-11-15 Matthias Klose <doko@ubuntu.com>
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* configure: Regenerate.
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2016-04-27 09:14:42 +02:00
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2016-04-27 Sebastian Huber <sebastian.huber@embedded-brains.de>
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* configure.tgt (configure_tgt_pre_target_cpu_XCFLAGS): New variable.
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(*-*-rtems*): New supported target.
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* config/rtems/host-config.h: New file.
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* config/rtems/lock.c: Likewise.
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2016-04-25 14:41:43 +02:00
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2016-04-25 H.J. Lu <hongjiu.lu@intel.com>
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PR target/70454
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* configure.tgt (XCFLAGS): Revert the last change.
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2016-04-20 16:41:55 +02:00
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2016-04-20 H.J. Lu <hongjiu.lu@intel.com>
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PR target/70454
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* configure.tgt (XCFLAGS): Don't add -march=i486 to compile
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32-bit x86 target library on x86-64.
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2016-01-06 15:51:35 +01:00
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2016-01-06 Szabolcs Nagy <szabolcs.nagy@arm.com>
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PR other/67627
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* Makefile.am (all-multi): Add dependency.
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* Makefile.in: Regenerate.
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2016-01-04 15:30:50 +01:00
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2016-01-04 Jakub Jelinek <jakub@redhat.com>
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Update copyright years.
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Add out-of-line versions of some <stdatomic.h> functions (PR c/65083).
PR c/65083 notes that some functions in <stdatomic.h> are normal
functions, not generic functions, and so need to have out-of-line
copies that can be called when macro expansion is suppressed (unlike
the generic functions where DR#419 makes it undefined if you suppress
a macro expansion).
This patch adds such out-of-line definitions in libatomic for those
six functions, at a new LIBATOMIC_1.2 symbol version, as trivial
wrappers to the <stdatomic.h> macros, along with declarations of those
functions in <stdatomic.h>. Tests are added that are based on the
corresponding tests for the macros, but with parentheses around the
function names to force the out-of-line functions to be used.
Bootstrapped with no regressions on x86_64-pc-linux-gnu.
gcc:
* ginclude/stdatomic.h (atomic_thread_fence, atomic_signal_fence)
(atomic_flag_test_and_set, atomic_flag_test_and_set_explicit)
(atomic_flag_clear, atomic_flag_clear_explicit): Declare as
functions before defining as macros.
gcc/testsuite:
* gcc.dg/atomic/stdatomic-fence-2.c,
gcc.dg/atomic/stdatomic-flag-2.c: New tests.
libatomic:
* fence.c, flag.c: New files.
* Makefile.am (libatomic_la_SOURCES): Add fence.c and flag.c.
* Makefile.in: Regenerate.
* configure.ac (libtool_VERSION): Change to 3:0:2.
* configure: Regenerate.
* libatomic.map (LIBATOMIC_1.2): New symbol version.
From-SVN: r230578
2015-11-18 23:13:44 +01:00
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2015-11-18 Joseph Myers <joseph@codesourcery.com>
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PR c/65083
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* fence.c, flag.c: New files.
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* Makefile.am (libatomic_la_SOURCES): Add fence.c and flag.c.
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* Makefile.in: Regenerate.
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* configure.ac (libtool_VERSION): Change to 3:0:2.
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* configure: Regenerate.
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* libatomic.map (LIBATOMIC_1.2): New symbol version.
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2015-10-09 15:55:23 +02:00
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2015-10-09 David Malcolm <dmalcolm@redhat.com>
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* testsuite/lib/libatomic.exp: Load multiline.exp before
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prune.exp, using load_gcc_lib.
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2015-07-14 17:36:51 +02:00
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2015-07-14 John Marino <gnugcc@marino.st>
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* configure.tgt: Add *-*-dragonfly to supported targets.
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2015-01-21 18:17:03 +01:00
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2015-01-21 Andrew Waterman <waterman@cs.berkeley.edu>
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* fop_n.c (libat_fetch_op): Align address to word boundary.
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(libat_op_fetch): Likewise.
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2015-01-16 12:29:54 +01:00
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2015-01-16 Ilya Verbin <ilya.verbin@intel.com>
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PR testsuite/64605
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* testsuite/lib/libatomic.exp: Do not load gcc-dg.exp.
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* testsuite/libatomic.c/c.exp: Load gcc-dg.exp.
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2015-01-09 15:06:02 +01:00
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2015-01-09 Andreas Tobler <andreast@gcc.gnu.org>
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* configure.tgt: Exclude arm*-*-freebsd* from try_ifunc.
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2015-01-05 13:33:28 +01:00
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2015-01-05 Jakub Jelinek <jakub@redhat.com>
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Update copyright years.
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2014-12-12 13:00:01 +01:00
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2014-12-12 Kyrylo Tkachov <kyrylo.tkachov@arm.com>
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* testsuite/lib/libatomic.exp: Load target-utils.exp
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2014-11-21 17:49:17 +01:00
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2014-11-21 H.J. Lu <hongjiu.lu@intel.com>
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PR bootstrap/63784
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* configure: Regenerated.
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2014-11-14 07:05:51 +01:00
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2014-11-13 Andrew Waterman <waterman@cs.berkeley.edu>
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* cas_n.c (libat_compare_exchange): Add missing cast.
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2014-11-11 21:25:18 +01:00
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2014-11-11 Francois-Xavier Coudert <fxcoudert@gcc.gnu.org>
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PR target/63610
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* configure: Regenerate.
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2014-08-19 16:55:37 +02:00
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2014-08-19 Yaakov Selkowitz <yselkowi@redhat.com>
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* configure.tgt: Add cygwin to supported targets.
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2014-07-18 Uros Bizjak <ubizjak@gmail.com>
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2014-07-18 08:34:20 +02:00
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* configure.tgt (alpha*): Add -mfp-trap-mode=sui to XCFLAGS.
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2014-06-17 22:43:18 +02:00
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2014-06-17 Kai Tietz <ktietz@redhat.com>
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* Makefile.am (libatomic_la_LDFLAGS): Add lt_host_flags.
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* configure.ac (ACX_LT_HOST_FLAGS): New.
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(target_thread_file): New.
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* configure.tgt (mingw): Add mingw support.
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* config/mingw/host-config.h: New file.
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* config/mingw/lock.c: Likewise.
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* Makefile.in: Regenerated.
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* configure: Likewise.
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* aclocal.m4: Likewise.
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* testsuite/Makefile.in: Likewise.
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2014-02-20 18:43:53 +01:00
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2014-02-20 Richard Henderson <rth@redhat.com>
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PR c++/60272
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* cas_n.c (libat_compare_exchange): Conditionalize on failure
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the store back to EPTR.
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2014-01-02 23:24:30 +01:00
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2014-01-02 Richard Sandiford <rdsandiford@googlemail.com>
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Update copyright years
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2013-12-09 18:37:43 +01:00
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2013-12-09 Uros Bizjak <ubizjak@gmail.com>
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* config/x86/fenv.c (__atomic_feraiseexcept): Emit SSE
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2013-12-09 18:41:40 +01:00
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instructions when __SSE_MATH__ is defined.
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2013-12-09 18:37:43 +01:00
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atomic-compare-exchange-1.c, [...]: Declare main as returning int.
* testsuite/libatomic.c/atomic-compare-exchange-1.c,
testsuite/libatomic.c/atomic-compare-exchange-2.c,
testsuite/libatomic.c/atomic-compare-exchange-3.c,
testsuite/libatomic.c/atomic-compare-exchange-4.c,
testsuite/libatomic.c/atomic-compare-exchange-5.c,
testsuite/libatomic.c/atomic-exchange-1.c,
testsuite/libatomic.c/atomic-exchange-2.c,
testsuite/libatomic.c/atomic-exchange-3.c,
testsuite/libatomic.c/atomic-exchange-4.c,
testsuite/libatomic.c/atomic-exchange-5.c,
testsuite/libatomic.c/atomic-generic.c,
testsuite/libatomic.c/atomic-load-1.c,
testsuite/libatomic.c/atomic-load-2.c,
testsuite/libatomic.c/atomic-load-3.c,
testsuite/libatomic.c/atomic-load-4.c,
testsuite/libatomic.c/atomic-load-5.c,
testsuite/libatomic.c/atomic-op-1.c,
testsuite/libatomic.c/atomic-op-2.c,
testsuite/libatomic.c/atomic-op-3.c,
testsuite/libatomic.c/atomic-op-4.c,
testsuite/libatomic.c/atomic-op-5.c,
testsuite/libatomic.c/atomic-store-1.c,
testsuite/libatomic.c/atomic-store-2.c,
testsuite/libatomic.c/atomic-store-3.c,
testsuite/libatomic.c/atomic-store-4.c,
testsuite/libatomic.c/atomic-store-5.c: Declare main as returning
int. Do not require built-in sync support or add target-specific
options.
* testsuite/libatomic.c/atomic-exchange-1.c,
testsuite/libatomic.c/atomic-exchange-2.c,
testsuite/libatomic.c/atomic-exchange-3.c,
testsuite/libatomic.c/atomic-exchange-4.c,
testsuite/libatomic.c/atomic-exchange-5.c: Separate increments of
count from expression using value of count.
From-SVN: r204953
2013-11-18 15:50:11 +01:00
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2013-11-18 Joseph Myers <joseph@codesourcery.com>
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* testsuite/libatomic.c/atomic-compare-exchange-1.c,
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testsuite/libatomic.c/atomic-compare-exchange-2.c,
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testsuite/libatomic.c/atomic-compare-exchange-3.c,
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testsuite/libatomic.c/atomic-compare-exchange-4.c,
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testsuite/libatomic.c/atomic-compare-exchange-5.c,
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testsuite/libatomic.c/atomic-exchange-1.c,
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testsuite/libatomic.c/atomic-exchange-2.c,
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testsuite/libatomic.c/atomic-exchange-3.c,
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testsuite/libatomic.c/atomic-exchange-4.c,
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testsuite/libatomic.c/atomic-exchange-5.c,
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testsuite/libatomic.c/atomic-generic.c,
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testsuite/libatomic.c/atomic-load-1.c,
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testsuite/libatomic.c/atomic-load-2.c,
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testsuite/libatomic.c/atomic-load-3.c,
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testsuite/libatomic.c/atomic-load-4.c,
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testsuite/libatomic.c/atomic-load-5.c,
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testsuite/libatomic.c/atomic-op-1.c,
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testsuite/libatomic.c/atomic-op-2.c,
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testsuite/libatomic.c/atomic-op-3.c,
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testsuite/libatomic.c/atomic-op-4.c,
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testsuite/libatomic.c/atomic-op-5.c,
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testsuite/libatomic.c/atomic-store-1.c,
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testsuite/libatomic.c/atomic-store-2.c,
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testsuite/libatomic.c/atomic-store-3.c,
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testsuite/libatomic.c/atomic-store-4.c,
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testsuite/libatomic.c/atomic-store-5.c: Declare main as returning
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int. Do not require built-in sync support or add target-specific
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options.
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* testsuite/libatomic.c/atomic-exchange-1.c,
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testsuite/libatomic.c/atomic-exchange-2.c,
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testsuite/libatomic.c/atomic-exchange-3.c,
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testsuite/libatomic.c/atomic-exchange-4.c,
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testsuite/libatomic.c/atomic-exchange-5.c: Separate increments of
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count from expression using value of count.
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2013-11-10 12:45:42 +01:00
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2013-11-10 Uros Bizjak <ubizjak@gmail.com>
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* config/x86/fenv.c: New file.
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tree-core.h (enum cv_qualifier): Add TYPE_QUAL_ATOMIC.
gcc:
2013-11-05 Andrew MacLeod <amacleod@redhat.com>
Joseph Myers <joseph@codesourcery.com>
* tree-core.h (enum cv_qualifier): Add TYPE_QUAL_ATOMIC.
(enum tree_index): Add TI_ATOMICQI_TYPE, TI_ATOMICHI_TYPE,
TI_ATOMICSI_TYPE, TI_ATOMICDI_TYPE and TI_ATOMICTI_TYPE.
(struct tree_base): Add atomic_flag field.
* tree.h (TYPE_ATOMIC): New accessor macro.
(TYPE_QUALS, TYPE_QUALS_NO_ADDR_SPACE): Add TYPE_QUAL_ATOMIC.
(TYPE_QUALS_NO_ADDR_SPACE_NO_ATOMIC): New macro.
(atomicQI_type_node, atomicHI_type_node, atomicSI_type_node)
(atomicDI_type_node, atomicTI_type_node): New macros for type
nodes.
* tree.c (set_type_quals): Set TYPE_ATOMIC.
(find_atomic_core_type): New function.
(build_qualified_type): Adjust alignment for qualified types.
(build_atomic_base): New function
(build_common_tree_nodes): Build atomicQI_type_node,
atomicHI_type_node, atomicSI_type_node, atomicDI_type_node and
atomicTI_type_node.
* print-tree.c (print_node): Print atomic qualifier.
* tree-pretty-print.c (dump_generic_node): Print atomic type
attribute.
* target.def (atomic_assign_expand_fenv): New hook.
* doc/tm.texi.in (TARGET_ATOMIC_ASSIGN_EXPAND_FENV): New @hook.
* doc/tm.texi: Regenerate.
* targhooks.c (default_atomic_assign_expand_fenv): New function.
* targhooks.h (default_atomic_assign_expand_fenv): Declare.
* sync-builtins.def (__atomic_feraiseexcept): New built-in
function.
* config/i386/i386-builtin-types.def (VOID_FTYPE_PUSHORT): New
function type.
* config/i386/i386.c (enum ix86_builtins): Add
IX86_BUILTIN_FNSTENV, IX86_BUILTIN_FLDENV, IX86_BUILTIN_FNSTSW and
IX86_BUILTIN_FNCLEX.
(bdesc_special_args): Add __builtin_ia32_fnstenv,
__builtin_ia32_fldenv, __builtin_ia32_fnstsw and
__builtin_ia32_fnclex.
(ix86_expand_builtin): Handle the new built-in functions.
(ix86_atomic_assign_expand_fenv): New function.
(TARGET_ATOMIC_ASSIGN_EXPAND_FENV): New macro.
* config/i386/i386.md (UNSPECV_FNSTENV, UNSPECV_FLDENV)
(UNSPECV_FNSTSW, UNSPECV_FNCLEX): New unspecs.
(fnstenv, fldenv, fnstsw, fnclex): New insns.
gcc/c-family:
2013-11-05 Andrew MacLeod <amacleod@redhat.com>
Joseph Myers <joseph@codesourcery.com>
* c-common.h (enum rid): Add RID_ATOMIC.
* c-common.c (c_common_reswords): Add _Atomic.
(sync_resolve_params): Use TYPE_MAIN_VARIANT on pointer argument.
(keyword_is_type_qualifier): Accept RID_ATOMIC.
* c-format.c (check_format_types): Check for extra _Atomic
qualifiers in format argument.
* c-pretty-print.c (pp_c_cv_qualifiers): Handle atomic qualifier.
(pp_c_type_qualifier_list): Mention _Atomic in comment.
gcc/c:
2013-11-05 Joseph Myers <joseph@codesourcery.com>
Andrew MacLeod <amacleod@redhat.com>
* c-aux-info.c (gen_type): Handle atomic qualifier.
* c-decl.c (validate_proto_after_old_defn): Do not remove atomic
qualifiers when compating types.
(shadow_tag_warned): Handle atomic_p in declspecs.
(quals_from_declspecs): Likewise.
(start_decl): Use c_type_promotes_to when promoting argument
types.
(grokdeclarator): Handle _Atomic.
(get_parm_info): Diagnose any qualifier on "void" as only
parameter.
(store_parm_decls_oldstyle): Do not remove atomic qualifiers when
comparing types. Use c_type_promotes_to when promoting argument
types.
(finish_function): Use c_type_promotes_to when promoting argument
types.
(build_null_declspecs): Handle atomic_p in declspecs.
(declspecs_add_qual): Handle RID_ATOMIC.
* c-parser.c (c_token_starts_typename, c_token_is_qualifier)
(c_token_starts_declspecs): Handle RID_ATOMIC.
(c_parser_declspecs): Handle atomic type specifiers and
qualifiers.
(c_parser_typeof_specifier): Remove const and _Atomic qualifiers
from types of expressions with atomic type.
(c_parser_direct_declarator_inner): Use convert_lvalue_to_rvalue.
(c_parser_attribute_any_word): Handle RID_ATOMIC.
(c_parser_initializer, c_parser_initelt, c_parser_initval)
(c_parser_statement_after_labels, c_parser_switch_statement)
(c_parser_for_statement, c_parser_expr_no_commas)
(c_parser_conditional_expression, c_parser_binary_expression)
(c_parser_cast_expression, c_parser_unary_expression)
(c_parser_postfix_expression)
(c_parser_postfix_expression_after_primary, c_parser_expression):
Use convert_lvalue_to_rvalue.
(c_parser_expression_conv, c_parser_expr_list): Document
conversion of lvalues to rvalues. Use convert_lvalue_to_rvalue.
(c_parser_objc_synchronized_statement): Use
convert_lvalue_to_rvalue.
(c_parser_objc_selector): Handle RID_ATOMIC.
(c_parser_objc_receiver, c_parser_array_notation): Use
convert_lvalue_to_rvalue.
* c-tree.h (ctsk_typeof): Adjust comment to mention use for
_Atomic (type-name).
(struct c_declspecs): Add atomic_p field.
(convert_lvalue_to_rvalue): Declare.
* c-typeck.c (c_type_promotes_to): Promote atomic types to
corresponding atomic types.
(qualify_type): Don't add _Atomic qualifiers from second argument.
(comp_target_types): Do not allow _Atomic mismatches.
(type_lists_compatible_p): Do not remove atomic qualifiers when
comparing types.
(really_atomic_lvalue, convert_lvalue_to_rvalue)
(build_atomic_assign): New functions.
(build_unary_op): Use build_atomic_assign for atomic increment and
decrement.
(build_conditional_expr): Do not treat _Atomic void as a qualified
version of void.
(build_modify_expr): Use build_atomic_assign for atomic LHS.
(find_anonymous_field_with_type, convert_to_anonymous_field)
(convert_for_assignment): Do not remove atomic qualifiers when
comparing types.
(digest_init): Do not accept initialization of arrays of atomic
elements by string constants.
(build_asm_expr): Use convert_lvalue_to_rvalue.
(build_binary_op): Do not treat _Atomic void as a qualified
version of void.
gcc/objc:
2013-11-05 Andrew MacLeod <amacleod@redhat.com>
* objc-act.c (objc_push_parm): Handle atomic qualifier.
gcc/testsuite:
2013-11-05 Joseph Myers <joseph@codesourcery.com>
* lib/target-supports.exp
(check_effective_target_fenv_exceptions): New function.
* lib/atomic-dg.exp, gcc.dg/atomic/atomic.exp: New files.
* gcc.dg/atomic/c11-atomic-exec-1.c,
gcc.dg/atomic/c11-atomic-exec-2.c,
gcc.dg/atomic/c11-atomic-exec-3.c,
gcc.dg/atomic/c11-atomic-exec-4.c,
gcc.dg/atomic/c11-atomic-exec-5.c, gcc.dg/c11-atomic-1.c,
gcc.dg/c11-atomic-2.c, gcc.dg/c11-atomic-3.c,
gcc.dg/c90-atomic-1.c, gcc.dg/c99-atomic-1.c: New tests.
libatomic:
2013-11-05 Joseph Myers <joseph@codesourcery.com>
* fenv.c: New file.
* libatomic.map (LIBATOMIC_1.1): New symbol version. Include
__atomic_feraiseexcept.
* configure.ac (libtool_VERSION): Change to 2:0:1.
(fenv.h): Test for header.
* Makefile.am (libatomic_la_SOURCES): Add fenv.c.
* Makefile.in, auto-config.h.in, configure: Regenerate.
From-SVN: r204544
2013-11-07 22:15:25 +01:00
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2013-11-07 Joseph Myers <joseph@codesourcery.com>
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* fenv.c: New file.
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* libatomic.map (LIBATOMIC_1.1): New symbol version. Include
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__atomic_feraiseexcept.
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* configure.ac (libtool_VERSION): Change to 2:0:1.
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(fenv.h): Test for header.
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* Makefile.am (libatomic_la_SOURCES): Add fenv.c.
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* Makefile.in, auto-config.h.in, configure: Regenerate.
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2013-10-17 17:49:27 +02:00
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2013-10-17 Michael Hudson-Doyle <michael.hudson@linaro.org>
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* libatomic/configure.tgt (aarch64*): Remove code preventing
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build.
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2013-09-20 11:47:52 +02:00
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2013-09-20 Alan Modra <amodra@gmail.com>
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* configure: Regenerate.
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2013-01-14 19:16:23 +01:00
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2013-01-14 Richard Sandiford <rdsandiford@googlemail.com>
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Update copyright years.
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2012-12-18 23:04:08 +01:00
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2012-12-18 Ian Lance Taylor <iant@google.com>
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PR go/55201
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* Makefile.am (noinst_LTLIBRARIES): Define new make variable.
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(libatomic_convenience_la_SOURCES): Likewise.
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(libatomic_convenience_la_LIBADD): Likewise.
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* Makefile.in: Rebuild.
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* testsuite/Makefile.in: Rebuild.
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2012-12-04 16:14:47 +01:00
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2012-12-04 Marcus Shawcroft <marcus.shawcroft@arm.com>
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* config/arm/arm-config.h (__ARM_ARCH_8A__): New.
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2012-11-22 01:47:58 +01:00
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2012-11-21 Matthias Klose <doko@ubuntu.com>
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* configure.tgt (i[3456]86): Handle -mx32 like -m64.
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2012-11-05 00:17:34 +01:00
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2012-11-04 Thomas Schwinge <thomas@codesourcery.com>
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2012-11-05 00:27:03 +01:00
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* acinclude.m4 (LIBAT_CHECK_IFUNC): Clarify message.
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* configure: Regenerate.
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2012-11-05 00:17:34 +01:00
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* configure: Regenerate.
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2012-10-23 19:22:48 +02:00
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2012-10-23 Sofiane Naci <sofiane.naci@arm.com>
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Mark libatomic unsupported in AArch64.
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* configure.tgt: Mark libatomic unsupported.
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2012-09-20 16:41:17 +02:00
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2012-09-20 Jakub Jelinek <jakub@redhat.com>
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PR other/43620
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* configure.ac (AM_INIT_AUTOMAKE): Add no-dist.
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* configure: Regenerate.
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* Makefile.in: Regenerate.
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2012-09-15 01:30:29 +02:00
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2012-09-14 David Edelsohn <dje.gcc@gmail.com>
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* configure: Regenerated.
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2012-05-23 01:54:32 +02:00
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2012-05-22 John David Anglin <dave.anglin@nrc-cnrc.gc.ca>
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PR other/53231
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* tas_n.c (libat_test_and_set): Correct return. Remove unused variable.
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2012-05-17 00:11:18 +02:00
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2012-05-16 H.J. Lu <hongjiu.lu@intel.com>
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* configure: Regenerated.
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2012-05-10 11:11:05 +02:00
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2012-05-10 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
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PR other/53284
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* acinclude.m4 (LIBAT_TEST_ATOMIC_BUILTIN): Add -O0 -S to CFLAGS
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instead of overriding.
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* configure: Regenerate.
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2012-05-07 18:11:14 +02:00
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2012-05-07 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
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* Makefile.am (libatomic.map-sun): Handle objects in
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libatomic_la_LIBADD.
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* aclocal.m4: Regenerate.
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* Makefile.in: Regenerate.
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2012-05-07 18:10:11 +02:00
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2012-05-07 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
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* configure.ac: Add $XPCFLAGS to CFLAGS, not $XCFLAGS.
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* configure: Regenerate.
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2012-05-03 17:59:43 +02:00
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2012-05-03 Richard Henderson <rth@redhat.com>
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2012-05-03 18:30:11 +02:00
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* configure.ac (AM_MAINTAINER_MODE): New.
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2012-05-03 17:59:43 +02:00
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* acinclude.m4 (LIBAT_TEST_ATOMIC_BUILTIN): Handle compilation
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failure in gcc_no_link path.
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2012-05-03 18:30:11 +02:00
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* configure, aclocal.m4, Makefile.in: Rebuild.
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2012-05-03 17:59:43 +02:00
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2012-05-01 17:48:28 +02:00
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2012-05-01 Richard Henderson <rth@redhat.com>
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* Initial commit.
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2016-01-04 15:30:50 +01:00
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2017-01-01 13:07:43 +01:00
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Copyright (C) 2012-2017 Free Software Foundation, Inc.
|
2016-01-04 15:30:50 +01:00
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Copying and distribution of this file, with or without modification,
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are permitted in any medium without royalty provided the copyright
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notice and this notice are preserved.
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