r190431 - in /branches/gupc/libgupc: ChangeLog ...

[nenadv at gcc dot gnu dot org]

Author: nenadv
Date: Thu Aug 16 01:18:35 2012
New Revision: 190431

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=190431
Log:
	Add tree based barrier implementation for SMP-based UPC run-time.

libgupc/
	* configure.ac: Add configuration for the barrier tree fanout.
	Add checking for __sync_fetch_and_add built-in function.
	* configure: Re-generate.
	* config.h.in: Re-generate.
	* Makefile.am (AM_UPCFLAGS): Added -fno-strict-aliasing
	to prevent alias warning when converting from pointer-to-shared
	into its internal representation.
	(UPC_RUNTIME_SRC): Remove upc_barrier.c.
	(UPC_RUNTIME_SRC): Add upc_barrier.upc.
	* Makefile.in: Re-generate.
	* smp/gcc-upc-lib.in: Add inclusion of atomic/spin_until code when
	compiling inside the target library.  Replace lib_atomic_cas name
	to lib_atomic to cover more then CAS atomic.
	* smp/upc_barrier.c: Delete.
	* smp/upc_barrier.upc: Add. A new tree based barrier implementation.
	* smp/upc_config.h (INT_MIN): Make it available for inlined code
	under int_min_max.
	* smp/upc_main.c (__upc_per_thread_init): Add call to initialize
	barrier implementation.
	* smp/upc_sync.h (__upc_atomic_cas): Move from upc_sysdep.h.
	(__upc_sync_fetch_and_add): New.
	(__upc_spin_until): Move from upc_sysdep.h.
	(__upc_num_cpus): Move from upc_sysdep.h.
	* smp/upc_sysdep.h (__upc_atomic_cas): Delete.
	(__upc_spin_until): Delete.
	(__upc_num_cpus): Delete.
	* smp/upc_sup.h (__upc_barrier_init): Add external definition.
	(__upc_map_to_local): New.  Map shared pointer into local address.


Added:
    branches/gupc/libgupc/smp/upc_barrier.upc
Removed:
    branches/gupc/libgupc/smp/upc_barrier.c
Modified:
    branches/gupc/libgupc/ChangeLog
    branches/gupc/libgupc/Makefile.am
    branches/gupc/libgupc/Makefile.in
    branches/gupc/libgupc/config.h.in
    branches/gupc/libgupc/configure
    branches/gupc/libgupc/configure.ac
    branches/gupc/libgupc/smp/gcc-upc-lib.in
    branches/gupc/libgupc/smp/upc_config.h
    branches/gupc/libgupc/smp/upc_main.c
    branches/gupc/libgupc/smp/upc_sup.h
    branches/gupc/libgupc/smp/upc_sync.h
    branches/gupc/libgupc/smp/upc_sysdep.h