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42 Commits

Author SHA1 Message Date
Torvald Riegel
6fb471d812 libitm: Fix wrong initialization order introduced with r202101. 
* config/posix/rwlock.cc: Fix initialization order.

From-SVN: r202116
 2013-08-30 17:13:05 +00:00
Torvald Riegel
bec9ec3fc1 Add custom HTM fast path for RTM on x86_64. 
* libitm_i.h (gtm_thread): Assign an asm name to serial_lock.
	(htm_fastpath): Assign an asm name.
	* libitm.h (_ITM_codeProperties): Add non-ABI flags used by custom
	HTM fast paths.
	(_ITM_actions): Likewise.
	* config/x86/target.h (HTM_CUSTOM_FASTPATH): Enable custom fastpath on
	x86_64.
	* config/x86/sjlj.S (_ITM_beginTransaction): Add custom HTM fast path.
	* config/posix/rwlock.h (gtm_rwlock): Update comments.  Move summary
	field to the start of the structure.
	* config/linux/rwlock.h (gtm_rwlock): Update comments.
	* beginend.cc (gtm_thread::begin_transaction): Add retry policy
	handling for custom HTM fast paths.

From-SVN: r202101
 2013-08-30 10:33:41 +00:00
Andreas Krebbel
aaaffb2a0d 2013-07-29 Andreas Krebbel <Andreas.Krebbel@de.ibm.com> 
* config/s390/target.h (htm_begin, htm_commit, htm_abort)
	(htm_transaction_active): Enable zEC12 instructions in the
	assembler.
	* configure.tgt: Remove -Wa,-march=zEC12 from XCFLAGS.

From-SVN: r201301
 2013-07-29 08:03:38 +00:00
Andreas Krebbel
167f68ede4 s390.c: (s390_expand_builtin): Allow -mhtm to be enabled without -march=zEC12. 
2013-07-17  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

	* config/s390/s390.c: (s390_expand_builtin): Allow -mhtm to be
	enabled without -march=zEC12.
	* config/s390/s390.h (TARGET_HTM): Do not require EC12 machine
	flags to be set.

2013-07-17  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

	* acinclude.m4: Add htm asm check for s390.
	* configure.tgt: Add -mhtm and -Wa,-march=zEC12 to the options.
	* configure: Regenerate.
	* config/s390/target.h: Remove __HTM__ check.
	(htm_available): Call getauxval to get hwcaps and check whether
	HTM is available or not.

From-SVN: r201004
 2013-07-17 11:15:24 +00:00
Peter Bergner
0258b6e466 acinclude.m4 (LIBITM_CHECK_AS_HTM): New. 
libitm/
        * acinclude.m4 (LIBITM_CHECK_AS_HTM): New.
        * configure.ac: Use it.
	(AC_CHECK_HEADERS): Check for sys/auxv.h.
	(AC_CHECK_FUNCS): Check for getauxval.
        * config.h.in, configure: Rebuild.
	* configure.tgt (target_cpu): Add -mhtm to XCFLAGS.
	* config/powerpc/target.h: Include sys/auxv.h and htmintrin.h.
	(USE_HTM_FASTPATH): Define.
	(_TBEGIN_STARTED, _TBEGIN_INDETERMINATE, _TBEGIN_PERSISTENT,
	_HTM_RETRIES) New macros.
	(htm_abort, htm_abort_should_retry, htm_available, htm_begin, htm_init,
	htm_begin_success, htm_commit, htm_transaction_active): New functions.

gcc/
	* config.gcc (powerpc*-*-*): Install htmintrin.h and htmxlintrin.h.
	* config/rs6000/t-rs6000 (MD_INCLUDES): Add htm.md.
	* config/rs6000/rs6000.opt: Add -mhtm option.
	* config/rs6000/rs6000-cpus.def (POWERPC_MASKS): Add OPTION_MASK_HTM.
	(ISA_2_7_MASKS_SERVER): Add OPTION_MASK_HTM.
	* config/rs6000/rs6000-c.c (rs6000_target_modify_macros): Define
	__HTM__ if the HTM instructions are available.
	* config/rs6000/predicates.md (u3bit_cint_operand, u10bit_cint_operand,
	htm_spr_reg_operand): New define_predicates.
	* config/rs6000/rs6000.md (define_attr "type"): Add htm.
	(TFHAR_REGNO, TFIAR_REGNO, TEXASR_REGNO): New define_constants.
	Include htm.md.
	* config/rs6000/rs6000-builtin.def (BU_HTM_0, BU_HTM_1, BU_HTM_2,
	BU_HTM_3, BU_HTM_SPR0, BU_HTM_SPR1): Add support macros for defining
	HTM builtin functions.
	* config/rs6000/rs6000.c (RS6000_BUILTIN_H): New macro.
	(rs6000_reg_names, alt_reg_names): Add HTM SPR register names.
	(rs6000_init_hard_regno_mode_ok): Add support for HTM instructions.
	(rs6000_builtin_mask_calculate): Likewise.
	(rs6000_option_override_internal): Likewise.
	(bdesc_htm): Add new HTM builtin support.
	(htm_spr_num): New function.
	(htm_spr_regno): Likewise.
	(rs6000_htm_spr_icode): Likewise.
	(htm_expand_builtin): Likewise.
	(htm_init_builtins): Likewise.
	(rs6000_expand_builtin): Add support for HTM builtin functions.
	(rs6000_init_builtins): Likewise.
	(rs6000_invalid_builtin, rs6000_opt_mask): Add support for -mhtm option.
	* config/rs6000/rs6000.h (ASM_CPU_SPEC): Add support for -mhtm.
	(TARGET_HTM, MASK_HTM): Define macros.
	(FIRST_PSEUDO_REGISTER): Adjust for new HTM SPR registers.
	(FIXED_REGISTERS): Likewise.
	(CALL_USED_REGISTERS): Likewise.
	(CALL_REALLY_USED_REGISTERS): Likewise.
	(REG_ALLOC_ORDER): Likewise.
	(enum reg_class): Likewise.
	(REG_CLASS_NAMES): Likewise.
	(REG_CLASS_CONTENTS): Likewise.
	(REGISTER_NAMES): Likewise.
	(ADDITIONAL_REGISTER_NAMES): Likewise.
	(RS6000_BTC_SPR, RS6000_BTC_VOID, RS6000_BTC_32BIT, RS6000_BTC_64BIT,
	RS6000_BTC_MISC_MASK, RS6000_BTM_HTM): New macros.
	(RS6000_BTM_COMMON): Add RS6000_BTM_HTM.
	* config/rs6000/htm.md: New file.
	* config/rs6000/htmintrin.h: New file.
	* config/rs6000/htmxlintrin.h: New file.

gcc/testsuite/
        * lib/target-supports.exp (check_effective_target_powerpc_htm_ok): New
        function to test if HTM is available.
	* gcc.target/powerpc/htm-xl-intrin-1.c: New test.
	* gcc.target/powerpc/htm-builtin-1.c: New test.

From-SVN: r200960
 2013-07-15 12:23:49 -05:00
Andreas Krebbel
5a3fe9b607 s390.c: Rename UNSPEC_CCU_TO_INT to UNSPEC_STRCMPCC_TO_INT and UNSPEC_CCZ_TO_INT to... 
2013-06-27  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

	* config/s390/s390.c: Rename UNSPEC_CCU_TO_INT to
	UNSPEC_STRCMPCC_TO_INT and UNSPEC_CCZ_TO_INT to UNSPEC_CC_TO_INT.
	(struct machine_function): Add tbegin_p.
	(s390_canonicalize_comparison): Fold CC mode compares to
	conditional jump if possible.
	(s390_emit_jump): Return the emitted jump.
	(s390_branch_condition_mask, s390_branch_condition_mnemonic):
	Handle CCRAWmode compares.
	(s390_option_override): Default to -mhtm if available.
	(s390_reg_clobbered_rtx): Handle floating point regs as well.
	(s390_regs_ever_clobbered): Use s390_regs_ever_clobbered also for
	FPRs instead of df_regs_ever_live_p.
	(s390_optimize_nonescaping_tx): New function.
	(s390_init_frame_layout): Extend clobbered_regs array to cover
	FPRs as well.
	(s390_emit_prologue): Call s390_optimize_nonescaping_tx.
	(s390_expand_tbegin): New function.
	(enum s390_builtin): New enum definition.
	(code_for_builtin): New array definition.
	(s390_init_builtins): New function.
	(s390_expand_builtin): New function.
	(TARGET_INIT_BUILTINS): Define.
	(TARGET_EXPAND_BUILTIN): Define.
	* common/config/s390/s390-common.c (processor_flags_table): Add
	PF_TX.
	* config/s390/predicates.md (s390_comparison): Handle CCRAWmode.
	(s390_alc_comparison): Likewise.
	* config/s390/s390-modes.def: Add CCRAWmode.
	* config/s390/s390.h (processor_flags): Add PF_TX.
	(TARGET_CPU_HTM): Define macro.
	(TARGET_HTM): Define macro.
	(TARGET_CPU_CPP_BUILTINS): Define __HTM__ for htm.
	* config/s390/s390.md: Rename UNSPEC_CCU_TO_INT to
	UNSPEC_STRCMPCC_TO_INT and UNSPEC_CCZ_TO_INT to UNSPEC_CC_TO_INT.
	(UNSPECV_TBEGIN, UNSPECV_TBEGINC, UNSPECV_TEND, UNSPECV_TABORT)
	(UNSPECV_ETND, UNSPECV_NTSTG, UNSPECV_PPA): New unspecv enum
	values.
	(TBEGIN_MASK, TBEGINC_MASK): New constants.
	("*cc_to_int"): Move up.
	("*mov<mode>cc", "*cjump_64", "*cjump_31"): Accept integer
	constants other than 0.
	("*ccraw_to_int"): New insn and splitter definition.
	("tbegin", "tbegin_nofloat", "tbegin_retry")
	("tbegin_retry_nofloat", "tbeginc", "tend", "tabort")
	("tx_assist"): New expander.
	("tbegin_1", "tbegin_nofloat_1", "*tbeginc_1", "*tend_1")
	("*tabort_1", "etnd", "ntstg", "*ppa"): New insn definition.
	* config/s390/s390.opt: Add -mhtm option.
	* config/s390/s390-protos.h (s390_emit_jump): Add return type.
	* config/s390/htmxlintrin.h: New file.
	* config/s390/htmintrin.h: New file.
	* config/s390/s390intrin.h: New file.
	* doc/extend.texi: Document htm builtins.
	* config.gcc: Add the new header files to extra_headers.

2013-06-27  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

	* gcc.target/s390/htm-1.c: New file.
	* gcc.target/s390/htm-nofloat-1.c: New file.
	* gcc.target/s390/htm-xl-intrin-1.c: New file.

2013-06-27  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

	* config/s390/target.h: Include htmintrin.h.
	(_HTM_ITM_RETRIES): New macro definition.
	(htm_available, htm_init, htm_begin, htm_begin_success)
	(htm_commit, htm_abort, htm_abort_should_retry): New functions.

From-SVN: r200454
 2013-06-27 07:44:11 +00:00
Torvald Riegel
480c696bb0 libitm: Handle HTM fastpath in status query functions. 
* query.cc (_ITM_inTransaction): Abort when using the HTM fastpath.
	(_ITM_getTransactionId): Same.
	* config/x86/target.h (htm_transaction_active): New.

From-SVN: r200251
 2013-06-20 16:40:54 +00:00
Andreas Krebbel
aaec3fc814 sjlj.S: New file. 
2013-04-23  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

	* config/s390/sjlj.S: New file.
	* config/s390/target.h: New file.
	* configure.tgt: Set options for S/390.

From-SVN: r198190
 2013-04-23 11:33:50 +00:00
Richard Sandiford
75f9527c9b Update copyright in libitm. 
From-SVN: r195697
 2013-02-03 17:46:11 +00:00
Torvald Riegel
64fbcc74a3 Add HTM fastpath and use Intel RTM for it on x86. 
* beginend.cc (htm_fastpath): New.
	(gtm_thread::begin_transaction, _ITM_commitTransaction,
	_ITM_commitTransactionEH): Add HTM fastpath handling.
	* config/linux/rwlock.h (gtm_rwlock.is_write_locked): New.
	* config/posix/rwlock.h (gtm_rwlock.is_write_locked): New.
	* config/x86/target.h (htm_available, htm_init, htm_begin_success,
	htm_begin, htm_commit, htm_abort, htm_abort_should_retry): New.
	* configure.tgt: Add -mrtm to XCFLAGS.
	* method-serial.cc (htm_mg, o_htm_mg, htm_dispatch, dispatch_htm): New.
	(gtm_thread::serialirr_mode): Add HTM fastpath handling.
	* libitm_i.h (htm_fastpath, dispatch_htm): Declare.
	* retry.cc (parse_default_method): Add HTM method parsing.
	(gtm_thread::number_of_threads_changed): Use HTM by default if
	available.

From-SVN: r193369
 2012-11-09 17:04:40 +00:00
Uros Bizjak
0c609a2144 target.h (struct gtm_jmpbuf): Merge x86_64 and ia32 declarations some more. 
* config/x86/target.h (struct gtm_jmpbuf): Merge x86_64
	and ia32 declarations some more.
	* config/x86/sjlj.S (_ITM_beginTransaction): Move ret to common code.

From-SVN: r191955
 2012-10-02 09:50:36 +02:00
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