| Age | Commit message (Collapse) | Author | Files | Lines | |
|---|---|---|---|---|---|
| 2021-01-04 | Update copyright years. | Jakub Jelinek | 1 | -1/+1 | |
| 2020-09-11 | [libatomic] Add nvptx support | Tom de Vries | 1 | -0/+2 | |
| Add nvptx support to libatomic. Given that atomic_test_and_set is not implemented for nvptx (PR96964), the compiler translates __atomic_test_and_set falling back onto the "Failing all else, assume a single threaded environment and simply perform the operation" case in expand_atomic_test_and_set, so it doesn't map onto an actual atomic operation. Still, that counts as supported for the configure test of libatomic, so we end up with HAVE_ATOMIC_TAS_1/2/4/8/16 == 1, and the corresponding __atomic_test_and_set_1/2/4/8/16 in libatomic all using that non-atomic implementation. Fix this by adding an atomic_test_and_set expansion for nvptx, that uses libatomics __atomic_test_and_set_1. This again makes the configure tests for HAVE_ATOMIC_TAS_1/2/4/8/16 fail, so instead we use this case in tas_n.c: ... /* If this type is smaller than word-sized, fall back to a word-sized compare-and-swap loop. */ bool SIZE(libat_test_and_set) (UTYPE *mptr, int smodel) ... which for __atomic_test_and_set_8 uses INVERT_MASK_8. Add INVERT_MASK_8 in libatomic_i.h, as well as MASK_8. Tested libatomic testsuite on nvptx. gcc/ChangeLog: PR target/96964 * config/nvptx/nvptx.md (define_expand "atomic_test_and_set"): New expansion. libatomic/ChangeLog: PR target/96898 * configure.tgt: Add nvptx. * libatomic_i.h (MASK_8, INVERT_MASK_8): New macro definition. * config/nvptx/host-config.h: New file. * config/nvptx/lock.c: New file. | |||||
| 2020-01-01 | Update copyright years. | Jakub Jelinek | 1 | -1/+1 | |
| From-SVN: r279813 | |||||
| 2019-01-01 | Update copyright years. | Jakub Jelinek | 1 | -1/+1 | |
| From-SVN: r267494 | |||||
| 2018-01-03 | Update copyright years. | Jakub Jelinek | 1 | -1/+1 | |
| From-SVN: r256169 | |||||
| 2017-12-05 | Makefile.am (ARCH_AARCH64_LINUX): Add IFUNC_OPTIONS and libatomic_la_LIBADD. | Steve Ellcey | 1 | -3/+3 | |
| 2017-12-04 Steve Ellcey <sellcey@cavium.com> * Makefile.am (ARCH_AARCH64_LINUX): Add IFUNC_OPTIONS and libatomic_la_LIBADD. * config/linux/aarch64/host-config.h: New file. * configure.ac (IFUNC_RESOLVER_ARGS): Define. (ARCH_AARCH64_LINUX): New conditional for IFUNC builds. * configure.tgt (aarch64): Set ARCH and try_ifunc. (aarch64*-*-linux*) Update config_path. (aarch64*-*-linux*) Set IFUNC_RESOLVER_ARGS. * libatomic_i.h (GEN_SELECTOR): Add IFUNC_RESOLVER_ARGS argument. * Makefile.in: Regenerate. * auto-config.h.in: Regenerate. * configure: Regenerate. From-SVN: r255399 | |||||
| 2017-10-02 | Clean up more fallout from r252976. | Martin Sebor | 1 | -3/+3 | |
| libatomic/ChangeLog: 2017-10-02 Martin Sebor <msebor@redhat.com> PR c/81854 * acinclude.m4 (LIBAT_CHECK_IFUNC): Have ifunc resolver return a function pointer rather than void* to avoid GCC 8 warnings. * configure: Regenerate. * libatomic_i.h: Declare ifunc resolvers to return function pointers rather than void*. From-SVN: r253372 | |||||
| 2017-01-01 | Update copyright years. | Jakub Jelinek | 1 | -1/+1 | |
| From-SVN: r243994 | |||||
| 2016-01-04 | Update copyright years. | Jakub Jelinek | 1 | -1/+1 | |
| From-SVN: r232055 | |||||
| 2015-01-05 | Update copyright years. | Jakub Jelinek | 1 | -1/+1 | |
| From-SVN: r219188 | |||||
| 2014-01-02 | Update copyright years in libatomic/ | Richard Sandiford | 1 | -1/+1 | |
| From-SVN: r206291 | |||||
| 2013-01-14 | Update copyright years in libatomic. | Richard Sandiford | 1 | -1/+1 | |
| From-SVN: r195164 | |||||
| 2012-05-01 | Add libatomic as a target library. | Richard Henderson | 1 | -0/+293 | |
| From-SVN: r187018 | |||||
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