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| author | Nathan Sidwell <nathan@codesourcery.com> | 2015-11-18 13:49:17 +0000 |
|---|---|---|
| committer | Nathan Sidwell <nathan@gcc.gnu.org> | 2015-11-18 13:49:17 +0000 |
| commit | 33f47f427920586a6f21dd8f1b1adc582b9fb7af (patch) | |
| tree | 91925ad53ac42a3a444905c3ffb894e6ec7c3a18 /libgcc/config/nvptx | |
| parent | d085c468179245fdd31c1014d3029ddd9e116e01 (diff) | |
| download | gcc-33f47f427920586a6f21dd8f1b1adc582b9fb7af.zip gcc-33f47f427920586a6f21dd8f1b1adc582b9fb7af.tar.gz gcc-33f47f427920586a6f21dd8f1b1adc582b9fb7af.tar.bz2 | |
nvptx.c (global_lock_var): New.
gcc/
* config/nvptx/nvptx.c (global_lock_var): New.
(nvptx_global_lock_addr): New.
(nvptx_lockless_update): Recomment and adjust for clarity.
(nvptx_lockfull_update): New.
(nvptx_reduction_update): New.
(nvptx_goacc_reduction_fini): Call it.
libgcc/
* config/nvptx/reduction.c: New.
* config/nvptx/t-nvptx (LIB2ADD): Add it.
libgomp/
* testsuite/libgomp.oacc-c-c++-common/reduction-cplx-flt.c: Add
worker & gang cases.
* testsuite/libgomp.oacc-c-c++-common/reduction-cplx-dbl.c: Likewise.
From-SVN: r230545
Diffstat (limited to 'libgcc/config/nvptx')
| -rw-r--r-- | libgcc/config/nvptx/reduction.c | 31 | ||||
| -rw-r--r-- | libgcc/config/nvptx/t-nvptx | 3 |
2 files changed, 33 insertions, 1 deletions
diff --git a/libgcc/config/nvptx/reduction.c b/libgcc/config/nvptx/reduction.c new file mode 100644 index 0000000..11bad4c --- /dev/null +++ b/libgcc/config/nvptx/reduction.c @@ -0,0 +1,31 @@ +/* Oversized reductions lock variable + Copyright (C) 2015 Free Software Foundation, Inc. + Contributed by Mentor Graphics. + +This file is part of GCC. + +GCC is free software; you can redistribute it and/or modify it under +the terms of the GNU General Public License as published by the Free +Software Foundation; either version 3, or (at your option) any later +version. + +GCC is distributed in the hope that it will be useful, but WITHOUT ANY +WARRANTY; without even the implied warranty of MERCHANTABILITY or +FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License +for more details. + +Under Section 7 of GPL version 3, you are granted additional +permissions described in the GCC Runtime Library Exception, version +3.1, as published by the Free Software Foundation. + +You should have received a copy of the GNU General Public License and +a copy of the GCC Runtime Library Exception along with this program; +see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +<http://www.gnu.org/licenses/>. */ + + +/* We use a global lock variable for reductions on objects larger than + 64 bits. Until and unless proven that lock contention for + different reduction is a problem, a single lock will suffice. */ + +unsigned volatile __reduction_lock = 0; diff --git a/libgcc/config/nvptx/t-nvptx b/libgcc/config/nvptx/t-nvptx index 34d68cc..e66188f 100644 --- a/libgcc/config/nvptx/t-nvptx +++ b/libgcc/config/nvptx/t-nvptx @@ -1,6 +1,7 @@ LIB2ADD=$(srcdir)/config/nvptx/malloc.asm \ $(srcdir)/config/nvptx/free.asm \ - $(srcdir)/config/nvptx/realloc.c + $(srcdir)/config/nvptx/realloc.c \ + $(srcdir)/config/nvptx/reduction.c LIB2ADDEH= LIB2FUNCS_EXCLUDE=__main |