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31 Commits

Author SHA1 Message Date
Uros Bizjak
68a12ef35b xmmintrin.h (_mm_sfence): Use __builtin_ia32_pause. 
gcc/

2012-07-03  Uros Bizjak  <ubizjak@gmail.com>

	* config/i386/xmmintrin.h (_mm_sfence): Use __builtin_ia32_pause.

libgomp/

2012-07-03  Uros Bizjak  <ubizjak@gmail.com>

	* config/linux/x86/futex.h (cpu_relax): Use __builtin_ia32_pause.
	* testsuite/libgomp.c/sort-1.c (busy_wait): Ditto.

libitm/

2012-07-03  Uros Bizjak  <ubizjak@gmail.com>

	* config/x86/target.h (cpu_relax): Use __builtin_ia32_pause.

From-SVN: r189194
 2012-07-03 09:24:10 +02:00
H.J. Lu
0100e3b3e8 Use long long in gtm_jmpbuf for x86-64 
2012-04-04  H.J. Lu  <hongjiu.lu@intel.com>

	PR libitm/52854
	* config/x86/target.h (gtm_jmpbuf): Replace long with long long
	for x86-64.

From-SVN: r186140
 2012-04-04 08:49:23 -07:00
Torvald Riegel
0d23faac63 libitm: Fix lost wake-up in serial lock. 
PR libitm/52526
	* config/linux/rwlock.cc (GTM::gtm_rwlock::read_lock): Fix lost
	wake-up.

From-SVN: r185358
 2012-03-13 22:01:34 +00:00
Richard Henderson
72824d5e40 * config/x86/target.h (GTM_longjmp): Correct the .cfi corrections. 
From-SVN: r184227
 2012-02-14 11:46:46 -08:00
Uros Bizjak
1f319dbad6 target.h (GTM_longjmp): Correct .cfi directives. 
* config/x86/target.h (GTM_longjmp): Correct .cfi directives.

From-SVN: r184220
 2012-02-14 19:38:38 +01:00
Eric Botcazou
62513f7bed target.h (cpu_relax): Read from CC register. 
* config/sparc/target.h (cpu_relax): Read from CC register.
	* config/sparc/sjlj.S (GTM_longjmp): Restore %fp atomically.

From-SVN: r184202
 2012-02-14 09:22:26 +00:00
Uros Bizjak
d4a698d494 target.h (GTM_longjmp): Jump indirect from memory address. 
* config/x86/target.h (GTM_longjmp): Jump indirect from memory address.

From-SVN: r184198
 2012-02-14 08:50:38 +01:00
Eric Botcazou
f3f5e3c32e configure.tgt (target_cpu): Handle sparc and sparc64 & sparcv9. 
* configure.tgt (target_cpu): Handle sparc and sparc64 & sparcv9.
	* config/sparc/cacheline.h: New file.
	* config/sparc/target.h: Likewise.
	* config/sparc/sjlj.S: Likewise.
	* config/linux/sparc/futex_bits.h: Likewise.

From-SVN: r184177
 2012-02-13 21:51:44 +00:00
Torvald Riegel
999bcff5bd libitm: Fix wake-up of readers in futex-based serial lock. 
libitm/
	* config/linux/rwlock.cc (GTM::gtm_rwlock::write_unlock): Fix reader
	wake-up.

From-SVN: r183488
 2012-01-24 19:17:05 +00:00
Uros Bizjak
9848887afa target.h (gtm_jmpbuf): Move rip to the end of structure. 
* config/x86/target.h (gtm_jmpbuf) [__x86_64__]: Move rip to the
	end of structure.
	* config/x86/sjlj.S (_ITM_beginTransaction) [__x86_64__]: Update
	offset values.  Do not copy return address.  Decrement stack
	by 56 bytes only.
	(GTM_longjump) [__x86_64__]: Update offset values.

From-SVN: r183467
 2012-01-24 08:23:57 +01:00
Uros Bizjak
5752c591bc re PR libitm/51830 (FAIL: libitm.c/mem(cpy|set)-1.c execution test) 
PR libitm/51830
	* builtin-types.def (BT_FN_UINT_UINT_VAR): New.
	* gtm-builtins.def (BUILT_IN_TM_START): Declare as BT_FN_UINT_UINT_VAR.

libitm/ChangeLog:

	PR libitm/51830
	* config/x86/sjlj.S (_ITM_beginTransaction) [!__x86_64__]: Load
	the first function argument to %eax.

From-SVN: r183435
 2012-01-23 15:57:44 +01:00
Torvald Riegel
07b6642b93 libitm: Filter out undo writes that overlap with the libitm stack. 
PR libitm/51855
	* config/generic/tls.h (GTM::mask_stack_top): New.
	(GTM::mask_stack_bottom): Declare.
	* config/generic/tls.c (GTM::mask_stack_bottom): New.
	* local.cc (gtm_undolog::rollback): Filter out any updates that
	overlap the libitm stack.  Add current transaction as parameter.
	* libitm_i.h (GTM::gtm_undolog::rollback): Adapt.
	* beginend.cc (GTM::gtm_thread::rollback): Adapt.
	* testsuite/libitm.c/stackundo.c: New test.

From-SVN: r183172
 2012-01-13 23:45:06 +00:00
Richard Henderson
a32e5e9357 libitm: PowerPC support. 
* configure.tgt: Support powerpc-linux and powerpc-darwin.
	* config/linux/powerpc/futex_bits.h: New file.
	* config/powerpc/cacheline.h: New file.
	* config/powerpc/sjlj.S: New file.
	* config/powerpc/target.h: New file.
	* config/generic/asmcfi.h (cfi_offset): New.
	(cfi_restore, cfi_undefined): New.

From-SVN: r182930
 2012-01-05 13:36:35 -08:00
Torvald Riegel
610e390135 libitm: Fix privatization safety during upgrades to serial mode. 
libitm/
	* beginend.cc (GTM::gtm_thread::restart): Add and handle
	finish_serial_upgrade parameter.
	* libitm.h (GTM::gtm_thread::restart): Adapt declaration.
	* config/linux/rwlock.cc (GTM::gtm_rwlock::write_lock_generic):
	Don't unset reader flag.
	(GTM::gtm_rwlock::write_upgrade_finish): New.
	* config/posix/rwlock.cc: Same.
	* config/linux/rwlock.h (GTM::gtm_rwlock::write_upgrade_finish):
	Declare.
	* config/posix/rwlock.h: Same.
	* method-serial.cc (GTM::gtm_thread::serialirr_mode): Unset reader
	flag after commit or after rollback when restarting.

From-SVN: r182675
 2011-12-24 01:42:35 +00:00
Torvald Riegel
799142bf74 libitm: Fixed conversion to C++11 atomics. 
libitm/
	* beginend.cc (GTM::gtm_thread::begin_transaction): Add comment.
	(GTM::gtm_thread::try_commit): Changed memory order.
	* config/linux/alpha/futex_bits.h (sys_futex0): Take atomic int
	as parameter.
	* config/linux/x86/futex_bits.h (sys_futex0): Same.
	* config/linux/sh/futex_bits.h (sys_futex0): Same.
	* config/linux/futex_bits.h (sys_futex0): Same.
	* config/linux/futex.cc (futex_wait, futex_wake): Same.
	* config/linux/futex.h (futex_wait, futex_wake): Same.
	* config/linux/rwlock.h (gtm_rwlock::writers,
	gtm_rwlock::writer_readers, gtm_rwlock::readers): Change to atomic
	ints.
	* config/linux/rwlock.cc (gtm_rwlock::read_lock,
	gtm_rwlock::write_lock_generic, gtm_rwlock::read_unlock,
	gtm_rwlock::write_unlock): Fix memory orders and fences.
	* config/posix/rwlock.cc (gtm_rwlock::read_lock,
	gtm_rwlock::write_lock_generic, gtm_rwlock::read_unlock,
	gtm_rwlock::write_unlock): Same.
	* config/linux/rwlock.h (gtm_rwlock::summary): Change to atomic int.
	* method-gl.cc (gl_mg::init, gl_wt_dispatch::memtransfer_static,
	gl_wt_dispatch::memset_static, gl_wt_dispatch::begin_or_restart):
	Add comments.
	(gl_wt_dispatch::pre_write, gl_wt_dispatch::validate,
	gl_wt_dispatch::load, gl_wt_dispatch::store,
	gl_wt_dispatch::try_commit, gl_wt_dispatch::rollback): Fix memory
	orders and fences.  Add comments.

From-SVN: r182674
 2011-12-24 01:42:20 +00:00
Kaz Kojima
cc16324749 configure.tgt: Add sh* case. 
* configure.tgt: Add sh* case.
	* config/sh/target.h: New file.
	* config/sh/sjlj.S: New file.
	* config/linux/sh/futex_bits.h: New file.

From-SVN: r182429
 2011-12-17 03:19:40 +00:00
Richard Henderson
aebac0ca06 arm-linux: Add libitm support. 
* config/arm/hwcap.h, config/arm/hwcap.cc: New files.
	* config/arm/sjlj.S, config/arm/target.h: New files.
	* config/generic/asmcfi.h (cfi_adjust_cfa_offset): New.
	(cfi_rel_offset): New.
	* config/linux/futex_bits.h: New file.
	* config/linux/futex.cc: Include futex_bits.h here...
	* config/linux/futex.h: ... not here.
	* Makefile.am (libitm_la_SOURCES) <ARCH_ARM>: Add hwcap.cc.
	* configure.ac (ARCH_AM): New conditional.
	* Makefile.in, configure: Rebuild.
	* configure.tgt: Handle ARM.

From-SVN: r182355
 2011-12-14 19:24:05 -08:00
Richard Henderson
5d9d05d349 rwlock.cc (gtm_rwlock::write_lock_generic): Fix signed/unsigned comparison werror. 
* config/posix/rwlock.cc (gtm_rwlock::write_lock_generic): Fix
        signed/unsigned comparison werror.

From-SVN: r182302
 2011-12-13 12:10:36 -08:00
Richard Henderson
36cfbee133 libitm: Conversion to c++11 atomics. 
* local_atomic: New file.
        * libitm_i.h: Include it.
        (gtm_thread::shared_state): Use atomic template.
        * beginend.cc (GTM::gtm_clock): Use atomic template.
        (global_tid): Use atomic template if 64-bit atomics available.
        (gtm_thread::gtm_thread): Update shared_state access.
        (gtm_thread::trycommit): Likewise.
        (choose_code_path): Update global_tid access.
        * method-gl.cc (gl_mg::orec): Use atomic template.  Update all users.
        * stmlock.h (GTM::gtm_clock): Use atomic template.
        (gtm_get_clock, gtm_inc_clock): Update accesses.
        * config/linux/rwlock.cc (gtm_rwlock::read_lock): Remove
        redundant __sync_synchronize after atomic shared_state access.
        * config/posix/rwlock.cc (gtm_rwlock::read_lock): Likewise.
        (gtm_rwlock::write_lock_generic): Likewise.
        (gtm_rwlock::read_unlock): Likewise.
        * config/alpha/target.h (atomic_read_barrier): Remove.
        (atomic_write_barrier): Remove.
        * config/x86/target.h (atomic_read_barrier): Remove.
        (atomic_write_barrier): Remove.

From-SVN: r182294
 2011-12-13 11:11:25 -08:00
Richard Henderson
062f93f255 Swap the action and jmpbuf arguments to GTM_longjmp 
On several ABIs, the first register parameter is the same as
the return value register.  Moving the action parameter first
avoids the need for register shuffling on these targets.

        * libitm_i.h (GTM_longjmp): Swap first and second arguments.
        * beginend.c (_ITM_abortTransaction): Update to match.
        (GTM::gtm_thread::restart): Likewise.
        * config/alpha/sjlj.S (GTM_longjmp): Likewise.
        * config/x86/sjlj.S (GTM_longjmp): Likewise.

From-SVN: r181863
 2011-11-30 14:29:33 -08:00
Iain Sandoe
0b41ebef72 sjlj.S (CONCAT1, [...]): Respond to __USER_LABEL_PREFIX__ for targets that use it. 
libitm:

	* config/x86/sjlj.S (CONCAT1, CONCAT2, SYM): Respond to
	__USER_LABEL_PREFIX__ for targets that use it.
	TYPE, SIZE, HIDDEN): New macros to assist on non-elf targets.
	(_ITM_beginTransaction): Use SYM, TYPE, SIZE macros to assist
	in portability to non-elf targets.
	(GTM_longjmp): LIkewise.
	* libitm_i.h (begin_transaction): Apply __USER_LABEL_PREFIX__
	where required.

From-SVN: r181612
 2011-11-22 09:57:19 +00:00
Rainer Orth
59659b5967 Support libitm on Solaris 8 and 9/x86 with Sun as 
* config/generic/asmcfi.h: Fix comment.
	* config/x86/sjlj.S (_ITM_beginTransaction): Provide ELF PIC code
	sequence without .hidden support, error for non-ELF targets.
	(GTM_longjmp) [__ELF__]: Only use .hidden if
	HAVE_ATTRIBUTE_VISIBILITY.

From-SVN: r181481
 2011-11-18 16:15:59 +00:00
Rainer Orth
8851b42977 libitm port to Tru64 UNIX 
* config/alpha/sjlj.S (_ITM_beginTransaction) [!__ELF__]: Don't use
	.hidden.
	(.note.GNU-stack): Only use if __linux__.
	* alloc_cpp.cc [!__osf__] (_ZnaXRKSt9nothrow_t): Dummy function.
	* testsuite/libitm.c/notx.c: Use dg-options "-pthread".
	* testsuite/libitm.c/reentrant.c: Likewise.
	* testsuite/libitm.c/simple-2.c: Likewise.
	* testsuite/libitm.c/txrelease.c: Likewise.
	* testsuite/libitm.c++/static_ctor.C: Likewise.

From-SVN: r181262
 2011-11-10 17:15:33 +00:00
Richard Henderson
d4b179020b libitm: Don't add -mavx if the assembler doesn't support avx. 
* config/x86/x86_avx.cc: Remove #undef __AVX__ hack.  Tidy comments.
        * Makefile.am (x86_avx.lo): Only add -mavx if ARCH_X86_AVX.
        * configure.ac (ARCH_X86_AVX): New conditional.
        * Makefile.in, configure: Rebuild.

From-SVN: r181261
 2011-11-10 09:09:04 -08:00
Richard Henderson
430616e7a7 libitm: Work around assembler missing AVX insns. 
From-SVN: r181246
 2011-11-09 16:29:38 -08:00
Richard Henderson
79b1edb6b5 libitm: Remove unused code. 
In particular, unused code that's presenting portability problems.

From-SVN: r181241
 2011-11-09 14:54:55 -08:00
Richard Henderson
8ee9fac21e libitm: Avoid non-portable x86 branch prediction mnemonic. 
From-SVN: r181233
 2011-11-09 11:51:49 -08:00
Richard Henderson
9bdc63433a libitm: de-ELF-ize x86/sjlj.S. 
* config/x86/sjlj.S: Protect elf directives with __ELF__.
        Protect .note.GNU-stack with __linux__.

From-SVN: r181229
 2011-11-09 10:38:21 -08:00
Richard Henderson
4bdd090f8e libitm: Configure for gas cfi pseudo ops. 
* asmcfi.m4: New file.

	* configure.ac (GCC_AS_CFI_PSEUDO_OP): Test it.
	* configure, aclocal.m4, config.h.in: Rebuild.
	* config/generic/asmcfi.h: New file.
	* config/x86/sjlj.S: Use it.

From-SVN: r181224
 2011-11-09 10:09:53 -08:00
Rainer Orth
e28a3d8bf2 Fix Solaris/x86 libitm build 
* configure.tgt: Handle i386 like i[456]86.
	* config/generic/tls.h [!HAVE_ARCH_GTM_THREAD] (gtm_thr): Don't
	take address.
	* config/generic/tls.cc [!HAVE_ARCH_GTM_THREAD ||
	!HAVE_ARCH_GTM_THREAD_DISP] (_gtm_thr_tls): New variable.

From-SVN: r181163
 2011-11-08 14:58:57 +00:00
Aldy Hernandez
0a35513e4e Merge from transactional-memory branch. 
From-SVN: r181154
 2011-11-08 11:13:41 +00:00