Fix AO_pause sleep delay for particular argument values (Win32)

* src/atomic_ops.c (AO_pause): Fix millis value (passed to Win32
Sleep) for the case of 'n' argument in range between 12 and 21,
inclusive if AO_USE_WIN32_PTHREADS (sleep for 1 ms in this case).
* src/atomic_ops_stack.c (AO_pause): Evaluate 'msecs' value using the
same algorithm as in atomic_ops.c (Win32 only).

Optimize AO_spin manually to minimize compiler influence on its duration

* src/atomic_ops.c (dummy, AO_spin): Use AO_t instead of deprecated
AO_T.
* src/atomic_ops_stack.c (AO_spin): Likewise.
* src/atomic_ops.c (AO_spin): Define as static (since not needed
outside).
* src/atomic_ops.c (AO_spin): Optimize code manually to minimize
speed dependency on compiler optimization level; add comment.
* src/atomic_ops_stack.c (AO_spin): Likewise.

Fix visibility and initial value of 'dummy' variable in atomic_ops_stack

* src/atomic_ops_stack.c (dummy): Define as static (to make symbol
without AO_ prefix visible only within this file); initialize to 1
(same as in atomic_ops.c, so that AO_spin would never really alter
its value).

Replace some FIXME items with TODO in atomic_ops.c and sysdeps headers

* src/atomic_ops.c (AO_HASH_SIZE): Replace FIXME item with TODO one.
* src/atomic_ops/sysdeps/gcc/alpha.h (AO_fetch_compare_and_swap):
Likewise.
* src/atomic_ops/sysdeps/gcc/avr32.h (AO_fetch_compare_and_swap):
Likewise.
* src/atomic_ops/sysdeps/gcc/ia64.h (AO_compare_double_and_swap_double,
AO_compare_and_swap_double): Likewise.
* src/atomic_ops/sysdeps/gcc/m68k.h (AO_fetch_compare_and_swap):
Likewise.
* src/atomic_ops/sysdeps/gcc/mips.h (AO_and, AO_or, AO_xor): Likewise.
* src/atomic_ops/sysdeps/gcc/s390.h (AO_nop_full,
AO_fetch_compare_and_swap, AO_compare_double_and_swap_double):
Likewise.
* src/atomic_ops/sysdeps/gcc/sparc.h: Likewise.
* src/atomic_ops/sysdeps/ibmc/powerpc.h (AO_fetch_and_add, AO_and,
AO_or, AO_xor): Likewise.
* src/atomic_ops/sysdeps/msftc/arm.h
(AO_compare_double_and_swap_double): Likewise.
* src/atomic_ops/sysdeps/sunc/sparc.h: Likewise.
* src/atomic_ops/sysdeps/ao_t_is_int.h: Add TODO item.
* src/atomic_ops/sysdeps/gcc/sh.h: Likewise.

Update TODO file (regarding Debian/alpha bug)

Do not include standard_ao_double_t.h where double-CAS is unimplemented

* src/atomic_ops/sysdeps/gcc/mips.h: Comment out include
standard_ao_double_t.h (since double-CAS is not implemented).
* src/atomic_ops/sysdeps/msftc/arm.h: Likewise.
* src/atomic_ops/sysdeps/gcc/mips.h: Add TODO item for
AO_compare_double_and_swap_double.
* src/atomic_ops/sysdeps/gcc/x86_64.h: Include standard_ao_double_t.h
only if AO_compare_double_and_swap_double_full defined.
* src/atomic_ops/sysdeps/msftc/x86_64.h: Likewise.
* src/atomic_ops/sysdeps/sunc/x86.h: Likewise.

Fix AO_load primitive name in comment

* src/atomic_ops.h: Fix 'load' primitive name in comment (replace
AO_load_release_read with AO_load_acquire_read).

Do not report absence of meaningless nop, load and store in test_atomic

* tests/test_atomic_include.template (test_atomicXX): Do not report
missing useless AO_nop_acquire[_read]/release[_write],
AO_[char/short/int_]store_read/acquire[_read] and
AO_[char/short/int_]load_write/release[_write] primitives (by checking
the presence of all the meaningful primitives of the same group).

Add double_compare_and_swap_read/write to generalization

* src/atomic_ops/generalize.h (AO_double_compare_and_swap_read,
AO_double_compare_and_swap_write,
AO_double_compare_and_swap_release_write,
AO_double_compare_and_swap_acquire_read): New function (only if
corresponding AO_HAVE_compare_double_and_swap_double_XXX and not
AO_HAVE_double_compare_and_swap_XXX) completing double-CAS family;
add accompanying AO_HAVE_double_compare_and_swap_XXX macro.

Test double_compare_and_swap in test_atomic

* tests/test_atomic_include.template (test_atomicXX): Define old_w
and new_w local variables (only if AO_HAVE_double_compare_and_swapXX);
add tests for AO_double_compare_and_swapXX if available.

Add negative double-CAS test cases to test_atomic_include

* tests/test_atomic_include.template (test_atomicXX): Add more negative
tests for compare_double_and_swap_double and compare_and_swap_double;
restore zero 'w' value using double-CAS.

Add no-barrier double_compare_and_swap to generalization

* src/atomic_ops/generalize.h (AO_double_compare_and_swap):
New function (only if AO_HAVE_compare_double_and_swap_double and
not AO_HAVE_double_compare_and_swap) completing double-CAS family;
reformat comment.
* src/atomic_ops/generalize.h (AO_HAVE_double_compare_and_swap):
Define macro (accompanying AO_double_compare_and_swap).

Fix compare_double_and_swap_double_full definition condition in emul_cas

* src/atomic_ops/sysdeps/emul_cas.h
(AO_compare_double_and_swap_double_full): Test (define if)
AO_HAVE_compare_double_and_swap_double_full macro instead of
AO_HAVE_compare_double_and_swap_double.

Remove unsafe emulation-based implementation of double CAS (SunCC/x86)

* src/atomic_ops/sysdeps/sunc/x86.h
(AO_compare_double_and_swap_double_full): Do not test
AO_WEAK_DOUBLE_CAS_EMULATION and remove emulation-based implementation
since it is unsafe (not atomic with respect to other kinds of updates)
leading to test_stack failure.
* configure.ac (AO_WEAK_DOUBLE_CAS_EMULATION): Update and refine
documentation.
* src/atomic_ops/sysdeps/sunc/x86.h
(AO_compare_double_and_swap_double_full): Likewise.

Remove sunc/x86_64.h to eliminate sunc/x86.h code duplication

* src/Makefile.am (nobase_private_HEADERS): Remove reference to
sunc/x86_64.h.
* src/atomic_ops.h: Include sunc/x86.h both for x86 and x86_64 (if
__sun defined but not GCC).
* src/atomic_ops/sysdeps/sunc/x86.h (AO_USE_PENTIUM4_INSTRS):
Explicitly define for x86_64 chips.
* src/atomic_ops/sysdeps/sunc/x86.h (AO_fetch_and_add_full,
AO_and_full, AO_or_full, AO_xor_full, AO_compare_and_swap_full,
AO_fetch_compare_and_swap_full): Remove "l" suffix (the size is
properly determined by operands).
* src/atomic_ops/sysdeps/sunc/x86.h
(AO_compare_double_and_swap_double_full): Use cmpxchg8b instruction
only in 32-bit mode (if __i386 defined) if avaialble, otherwise use
either cmpxchg16b (if AO_CMPXCHG16B_AVAILABLE) or emulation (if
AO_WEAK_DOUBLE_CAS_EMULATION).
* src/atomic_ops/sysdeps/sunc/x86.h (AO_T_IS_INT): Define only for
32-bit mode.
* src/atomic_ops/sysdeps/sunc/x86.h (AO_int_fetch_and_add_full,
AO_HAVE_int_fetch_and_add_full): Move definition from sunc/x86_64.h;
define only for 64-bit mode.
* src/atomic_ops/sysdeps/sunc/x86_64.h: Delete this file.

Fix cmpxchg16b-based compare_double_and_swap_double for SunCC/x86_64

* src/atomic_ops/sysdeps/sunc/x86_64.h
(AO_compare_double_and_swap_double_full): Fix inline assembly
arguments commenting out "m"(*addr) one (similar to that in
sunc/x86.h) if AO_CMPXCHG16B_AVAILABLE defined.

Remove nested AO_USE_PTHREAD_DEFS macro check in atomic_ops.h (gcc/arm)

* src/atomic_ops.h: Remove redundant (nested) AO_USE_PTHREAD_DEFS
macro test for gcc/arm.

Fix AO_DOUBLE_T_INITIALIZER definition (x86_64)

* src/atomic_ops/sysdeps/standard_ao_double_t.h
(AO_DOUBLE_T_INITIALIZER): Fix definition for x86_64 (remove cast of
zero since __m128 type is a vector).

Eliminate 'missing initializer' warning for AO_stack_t value initializer

* src/atomic_ops/sysdeps/generic_pthread.h (AO_DOUBLE_T_INITIALIZER):
New API macro definition.
* src/atomic_ops/sysdeps/standard_ao_double_t.h
(AO_DOUBLE_T_INITIALIZER): Likewise.
* src/atomic_ops_stack.h (AO_STACK_INITIALIZER): Define using
AO_DOUBLE_T_INITIALIZER (only if not AO_USE_ALMOST_LOCK_FREE).

Fix a typo in comment of compare_double_and_swap_double (x86_64)

* src/atomic_ops/sysdeps/gcc/x86_64.h
(AO_compare_double_and_swap_double_full): Fix a typo in comment.
* src/atomic_ops/sysdeps/sunc/x86_64.h
(AO_compare_double_and_swap_double_full): Likewise.

Align code and comments of gcc/x86.h and sunc/x86.h

* src/atomic_ops/sysdeps/gcc/x86.h (AO_and_full, AO_or_full,
AO_xor_full, AO_test_and_set_full,
AO_compare_double_and_swap_double_full): Align code and comments.
* src/atomic_ops/sysdeps/sunc/x86.h: Likewise.

Add TODO item to gcc/alpha.h

Update ChangeLog file

tests: Log messages to stdout instead of stderr

* tests/run_parallel.h (run_parallel): Print logging (non-error)
messages using printf() instead of fprintf(stderr).
* tests/test_atomic_include.template (MISSING): Likewise.
* tests/test_malloc.c (print_list): Likewise.
* tests/run_parallel.h (run_parallel): Reformat code.

Remove useless 'perror' call in tests run_parallel.h

* tests/run_parallel.h (run_parallel): Remove useless perror() call
(since error code is returned by pthread primitive or GetLastError).

Terminate tests with abort after error reported

* tests/test_atomic.c (acqrel_thr): Call abort() after fprintf(stderr).
* tests/test_malloc.c (run_one_test): Likewise.
* tests/test_stack.c (check_list, main): Likewise.

Update ChangeLog file

Implement compare_double_and_swap_double for SunCC/x86
(Tested only with Sun C 5.11 SunOS_i386.)

* src/atomic_ops/sysdeps/sunc/x86.h
(AO_compare_double_and_swap_double_full): Implement (define only if
AO_NO_CMPXCHG8B unset) using same algorithm as for gcc/x86 non-PIC.

Update ChangeLog and TODO files

Fix compare_double_and_swap_double for clang/x86 in PIC mode

* src/atomic_ops/sysdeps/gcc/x86.h
(AO_compare_double_and_swap_double_full): Re-implement for PIC mode
saving EBX to a local variable (instead of pushing it to stack) and
saving memory operand address to a register (edi which is manually
preserved), so that the whole code could also work even if EBX points
to memory operand (e.g., in Clang); test __PIC__ using ifdef (instead
of "if"); update comments; reformat code.

TODO: Add FIXME item (Ubuntu/x86)

Update ChangeLog file

Fix AO_compiler_barrier missing parentheses

* src/atomic_ops.h (AO_compiler_barrier): Add parentheses and cast to
void.

Update ChangeLog file

TODO file: add FIXME items (regarding Debian)

Fix AO_compare_double_and_swap_double_full for gcc-4.2.1/x86 in PIC mode

* src/atomic_ops/sysdeps/gcc/x86.h
(AO_compare_double_and_swap_double_full): Use EDI register for
"new_val1" argument in PIC mode only for GCC 4.3+ to workaround
a problem with older compiler versions (e.g., GCC 4.2.1 [FreeBSD])
that do not recognize 'D' as a valid register specification; update
comment.

Update ChangeLog file (regarding v7.2d)

Update ChangeLog file

Fix generalized AO_char/short_compare_and_swap/fetch_and_add CTYPE args

* src/atomic_ops/generalize-small.template
(AO_XSIZE_compare_and_swap_full, AO_XSIZE_compare_and_swap_acquire,
AO_XSIZE_compare_and_swap_release, AO_XSIZE_fetch_and_add_full,
AO_XSIZE_fetch_and_add_acquire, AO_XSIZE_fetch_and_add_release):
Fix type of function arguments (or local variables) by adding
'unsigned' to XCTYPE.
* src/atomic_ops/generalize-small.h: Regenerate.

Bump libatomic_ops version

* README: Bump version to 7.3alpha3.
* configure.ac: Likewise.
* src/atomic_ops/ao_version.h (AO_VERSION_ALPHA): Likewise.

[7.3alpha2]

Bump libatomic_ops version to 7.3alpha2

* ChangeLog: Set release dates.
* README: Bump version to 7.3alpha2.
* configure.ac: Likewise.
* src/atomic_ops/ao_version.h (AO_VERSION_ALPHA): Likewise.

Define AO_T_IS_INT for x32

* src/atomic_ops/sysdeps/gcc/x86_64.h (AO_T_IS_INT): Defined
for x32.

Update ChangeLog file

Update AUTHORS file

Fix for x32 by removing 'q' suffix in x86-64 instructions

We do not need the 'q' suffix on x86_64 atomic instructions for AO_t
which is defined as "unsigned long"; the later is 32-bit for x32
and 64-bit for x86-64; the register operand in x86-64 atomic
instructions is sufficient to properly determine the register size.

* src/atomic_ops/sysdeps/gcc/x86_64.h (AO_fetch_and_add_full,
AO_and_full, AO_or_full, AO_xor_full, AO_compare_and_swap_full,
AO_fetch_compare_and_swap_full): Remove 'q' suffix in asm instruction.

Fix autogen.sh to prevent reporting success if autoreconf failed

* autogen.sh: Add "set -e" command to abort script execution on
autoreconf failure (thus not printing "ready" in that case).

Fix ChangeLog (regarding autoconf)

Update ChangeLog

Fix configure to define __PIC__ macro explicitly only if not done by GCC

* configure.ac (PICFLAG): Adjust AC_MSG_CHECKING message; report
"none" result if no -fPIC is needed (for Cygwin/MinGW); determine
whether GCC -fPIC option causes __PIC__ macro definition; pass
-D __PIC__ to PICFLAG (instead of CFLAGS) only if not defined
automatically in case -fPIC specified; update comment.

Update ChangeLog

Fix double_ptr_storage definition for GCC pre-v4 (x86_64)

* src/atomic_ops/sysdeps/standard_ao_double_t.h: Do not use __m128
if GCC pre-v4 (at least, xmmintrin.h is missing in gcc-3.4.3-x86_64
included in Solaris 10 distribution).

Fix a typo in comment in standard_ao_double_t.h

Update ChangeLog

Use __builtin_expect in CAS failure loop condition checks (GCC only)

* src/atomic_ops.c (lock, block_all_signals): Use AO_EXPECT_FALSE.
* src/atomic_ops.h (AO_EXPECT_FALSE): New macro.
* src/atomic_ops/generalize-small.template
(AO_XSIZE_fetch_and_add_full, AO_XSIZE_fetch_and_add_acquire,
AO_XSIZE_fetch_and_add_release): Use AO_EXPECT_FALSE for CAS failure
check.
* src/atomic_ops/generalize.h (AO_fetch_and_add_full,
AO_fetch_and_add_acquire, AO_fetch_and_add_release, AO_fetch_and_add,
AO_and_full, AO_or_full, AO_xor_full): Likewise.
* src/atomic_ops/sysdeps/gcc/arm.h
(AO_compare_double_and_swap_double): Likewise.
* src/atomic_ops_stack.c (AO_stack_push_explicit_aux_release,
AO_stack_pop_explicit_aux_acquire, AO_stack_push_release,
AO_stack_pop_acquire): Likewise.
* src/atomic_ops/generalize-small.h: Regenerate.

Update ChangeLog

Update ChangeLog

Fix AO_compare_double_and_swap_double_full for gcc/x86 (PIC mode)

* src/atomic_ops/sysdeps/gcc/x86.h
(AO_compare_double_and_swap_double_full): Use EDI register for
"new_val1" argument instead of a memory operand and use XCHG assembler
instruction instead of push/pop in case of PIC mode (to workaround
a bug in GCC 4.6.1); update the comment.

Update TODO file (remove fixed item for clang/x86)

Fix AO_stack_push_release to workaround bug in clang-1.1/x86

* src/atomic_ops_stack.c (AO_stack_push_release): Make "cptr" local
variable volatile to workaround a bug in clang-1.1/x86 compiler; add
comment.

Fix a typo in comment

* src/atomic_ops/sysdeps/gcc/x86.h
(AO_compare_double_and_swap_double_full): Fix argument name in the
comment.
* src/atomic_ops/sysdeps/sunc/x86.h
(AO_compare_double_and_swap_double_full): Likewise.

Update ChangeLog

configure: Require automake 2.61 instead of 2.63

* configure.ac (AC_PREREQ): Use value of 2.63 (relax requirement to
enable autoreconf on current Mac OS X).

Update ChangeLog

Replace pointer relational comparisons with non-pointer ones

* src/atomic_ops_malloc.c (initial_heap_lim): Remove static variable
(which holds a constant).
* src/atomic_ops_malloc.c (get_chunk): Replace "goto" with for/break;
remove "my_lim" local variable; cast AO_compare_and_swap_acquire()
unused result to void; replace less-or-equal comparison of pointers
with comparison of ptrdiff_t value.
* src/atomic_ops_malloc.c (add_chunk_as): Update comment; remove "sz"
argument; replace "first", "limit", "p", "next" pointer local variable
with "ofs", "limit" and "sz" variables of size_t; add assertion on
"sz" value; replace less-or-equal comparison of pointers with
comparison of size_t values.
* src/atomic_ops_malloc.c (AO_malloc): Remove "adj_sz" local variable;
do not pass adj_sz argument to add_chunk_as.

Fix a typo in comment

* src/atomic_ops_malloc.h (AO_malloc_enable_mmap): Fix a typo in the
comment.

configure: Require automake 2.63 (widely spread) instead of 2.64

* configure.ac (AC_PREREQ): Use value of 2.63 (instead of 2.64).

Update TODO file (add FIXME note for clang)

Remove unused and hide some inner symbols in atomic_ops_malloc

* src/atomic_ops_malloc.c (AO_chunk_free_list): Remove unused global
variable.
* src/atomic_ops_malloc.c (msbs): Add 'const' keyword.
* src/atomic_ops_malloc.c (msb): Add 'static' keyword to inner
function declaration.

Suppress compiler warning in atomic_ops_malloc

* src/atomic_ops_malloc.c (msb): Change shift-by-32 expression to
work around a warning issued by clang compiler.

configure: Specify bug reports email in AC_INIT

README: Add bug reports address

test_stack: check_list() code refactoring and 'marks' size optimization

* tests/test_stack.c (marks): Set smaller size (according to the
maximum index passed to check_list).
* tests/test_stack.c (check_list): Store p->data to "i" local variable
(in the loop body) replacing multiple occurrences of p->data.

Change function prototype specifications to follow strict ANSI C style

* tests/test_atomic.c (main): Put "void" keyword into the arguments
specification of the function prototype.
* tests/test_stack.c (main): Likewise.

Add autogen.sh file

Replace repeating '==' in documentation with a single one

* README: Replace sequences of repeating '==' identifying section
titles (which is also used by git-apply) with two '=' symbols at the
beginning and at the end of each title.
* TODO: Likewise.
* ChangeLog: Likewise.
* src/atomic_ops/sysdeps/gcc/arm.h: Break a sequence of repeating '=='
(in a comment) with a space.

Update TODO file (remove FIXME - problem caused by target mismatch)

Update TODO file (remove FIXME - problem fixed in GCC v4.6.2)

.gitignore: Ignore config.cache

Code refactoring of gcc/arm.h by introducing AO_ARM_HAVE_x macros

* src/atomic_ops/sysdeps/gcc/arm.h (AO_ARM_HAVE_LDREX,
AO_ARM_HAVE_LDREXD, AO_ARM_HAVE_SWP): New macro.
* src/atomic_ops/sysdeps/gcc/arm.h (AO_nop_full, AO_load, AO_store,
AO_test_and_set, AO_fetch_and_add, AO_fetch_and_add1,
AO_fetch_and_sub1, AO_compare_and_swap, AO_fetch_compare_and_swap,
AO_compare_double_and_swap_double, AO_test_and_set_full): Test
AO_ARM_HAVE_LDREX, AO_ARM_HAVE_LDREXD and AO_ARM_HAVE_SWP instead of
__ARM_ARCH_x__ directly.

Update ChangeLog

Fix __ARM_ARCH_5__ macro handling for Android NDK (ARMv7)

* src/atomic_ops/sysdeps/gcc/arm.h (__ARM_ARCH_7__, __ARM_ARCH_7A__):
Recognize to override __ARM_ARCH_5xx__ macros (since Android NDK GCC
defines both for armv7); update comment.

Merge branch 'ao_val_cas'

.gitignore: Ignore Gcov files (.gcda, .gcno)

.gitignore: Ignore binary files (.a, .exe, .o, etc.) in all folders

Update ChangeLog

configure: Do not pass '-Wextra' option to GCC if unsupported

* configure.ac (WEXTRA): New variable (set to "-Wextra" if the latter
is supported by GCC, otherwise to "-W").
* configure.ac (CFLAGS): Use WEXTRA variable.

Define NDEBUG via config.h instead of CFLAGS;
do not define NDEBUG if '--enable-assertions' passed to configure

* configure.ac (CFLAGS): Do not add "-DNDEBUG".
* configure.ac (assertions): New AC argument.
* configure.ac (NDEBUG): New AC macro (defined only if "assertions"
AC argument is not set to "yes").

Recognize AO_PREFER_GENERALIZED to favor generalization over asm (MIPS)

* src/atomic_ops/sysdeps/gcc/mips.h (AO_fetch_and_add,
AO_HAVE_fetch_and_add, AO_test_and_set, AO_HAVE_test_and_set): Do not
define if AO_PREFER_GENERALIZED.

Update ChangeLog

Add new macro (AO_PREFER_GENERALIZED) to favor generalized primitives
over direct assembly-based ones

* configure.ac (AO_PREFER_GENERALIZED): New AC template.
* src/atomic_ops/sysdeps/armcc/arm_v6.h (AO_test_and_set,
AO_HAVE_test_and_set, AO_fetch_and_add, AO_HAVE_fetch_and_add,
AO_fetch_and_add1, AO_HAVE_fetch_and_add1, AO_fetch_and_sub1,
AO_HAVE_fetch_and_sub1): Do not define if AO_PREFER_GENERALIZED.
* src/atomic_ops/sysdeps/gcc/arm.h (AO_test_and_set,
AO_HAVE_test_and_set, AO_fetch_and_add, AO_HAVE_fetch_and_add,
AO_fetch_and_add1, AO_HAVE_fetch_and_add1, AO_fetch_and_sub1,
AO_HAVE_fetch_and_sub1): Likewise.
* src/atomic_ops/sysdeps/gcc/avr32.h (AO_test_and_set_full,
AO_HAVE_test_and_set_full): Likewise.
* src/atomic_ops/sysdeps/gcc/hexagon.h (AO_fetch_and_add,
AO_HAVE_fetch_and_add, AO_test_and_set, AO_HAVE_test_and_set):
Likewise.
* src/atomic_ops/sysdeps/gcc/ia64.h (AO_fetch_and_add1_acquire,
AO_HAVE_fetch_and_add1_acquire, AO_fetch_and_add1_release,
AO_HAVE_fetch_and_add1_release, AO_fetch_and_sub1_acquire,
AO_HAVE_fetch_and_sub1_acquire, AO_fetch_and_sub1_release,
AO_HAVE_fetch_and_sub1_release, AO_int_fetch_and_add1_acquire,
AO_HAVE_int_fetch_and_add1_acquire, AO_int_fetch_and_add1_release,
AO_HAVE_int_fetch_and_add1_release, AO_int_fetch_and_sub1_acquire,
AO_HAVE_int_fetch_and_sub1_acquire, AO_int_fetch_and_sub1_release,
AO_HAVE_int_fetch_and_sub1_release): Likewise.
* src/atomic_ops/sysdeps/gcc/powerpc.h (AO_test_and_set,
AO_HAVE_test_and_set, AO_test_and_set_acquire,
AO_HAVE_test_and_set_acquire, AO_test_and_set_release,
AO_HAVE_test_and_set_release, AO_test_and_set_full,
AO_HAVE_test_and_set_full): Likewise.
* src/atomic_ops/sysdeps/gcc/x86.h (AO_fetch_and_add_full,
AO_HAVE_fetch_and_add_full, AO_and_full, AO_HAVE_and_full,
AO_or_full, AO_HAVE_or_full, AO_xor_full, AO_HAVE_xor_full): Likewise.
* src/atomic_ops/sysdeps/gcc/x86_64.h (AO_fetch_and_add_full,
AO_HAVE_fetch_and_add_full, AO_and_full, AO_HAVE_and_full, AO_or_full,
AO_HAVE_or_full, AO_xor_full, AO_HAVE_xor_full): Likewise.
* src/atomic_ops/sysdeps/hpc/ia64.h (AO_fetch_and_add1_acquire,
AO_HAVE_fetch_and_add1_acquire, AO_fetch_and_add1_release,
AO_HAVE_fetch_and_add1_release, AO_fetch_and_sub1_acquire,
AO_HAVE_fetch_and_sub1_acquire, AO_fetch_and_sub1_release,
AO_HAVE_fetch_and_sub1_release): Likewise.
* src/atomic_ops/sysdeps/ibmc/powerpc.h (AO_test_and_set_acquire,
AO_HAVE_test_and_set_acquire, AO_test_and_set_release,
AO_HAVE_test_and_set_release, AO_test_and_set_full,
AO_HAVE_test_and_set_full): Likewise.
* src/atomic_ops/sysdeps/icc/ia64.h (AO_fetch_and_add1_acquire,
AO_HAVE_fetch_and_add1_acquire, AO_fetch_and_add1_release,
AO_HAVE_fetch_and_add1_release, AO_fetch_and_sub1_acquire,
AO_HAVE_fetch_and_sub1_acquire, AO_fetch_and_sub1_release,
AO_HAVE_fetch_and_sub1_release): Likewise.
* src/atomic_ops/sysdeps/msftc/x86_64.h (AO_fetch_and_add_full,
AO_HAVE_fetch_and_add_full, AO_fetch_and_add1_full,
AO_HAVE_fetch_and_add1_full, AO_fetch_and_sub1_full,
AO_HAVE_fetch_and_sub1_full): Likewise.
* src/atomic_ops/sysdeps/sunc/x86.h (AO_fetch_and_add_full,
AO_HAVE_fetch_and_add_full, AO_and_full, AO_HAVE_and_full,
AO_or_full, AO_HAVE_or_full, AO_xor_full, AO_HAVE_xor_full): Likewise.
* src/atomic_ops/sysdeps/sunc/x86_64.h (AO_fetch_and_add_full,
AO_HAVE_fetch_and_add_full, AO_and_full, AO_HAVE_and_full,
AO_or_full, AO_HAVE_or_full, AO_xor_full, AO_HAVE_xor_full): Likewise.
* src/atomic_ops/sysdeps/gcc/arm.h (AO_test_and_set_full,
AO_HAVE_test_and_set_full): Do not define if AO_PREFER_GENERALIZED
(but only in case of ARMv6+).
* src/atomic_ops/sysdeps/msftc/common32_defs.h (_InterlockedIncrement,
_InterlockedDecrement, _InterlockedExchangeAdd): Do not declare
intrinsic if both AO_PREFER_GENERALIZED and AO_ASSUME_WINDOWS98.
* src/atomic_ops/sysdeps/msftc/common32_defs.h (AO_fetch_and_add_full,
AO_HAVE_fetch_and_add_full, AO_fetch_and_add1_full,
AO_HAVE_fetch_and_add1_full, AO_fetch_and_sub1_full,
AO_HAVE_fetch_and_sub1_full): Do not define if both
AO_PREFER_GENERALIZED and AO_ASSUME_WINDOWS98.
* src/atomic_ops/sysdeps/msftc/x86_64.h (_InterlockedIncrement64,
_InterlockedDecrement64, _InterlockedExchangeAdd64): Do not declare
intrinsic if AO_PREFER_GENERALIZED.

Remove unused InterlockedExchange/ReadWriteBarrier declarations (VC/x86)

* src/atomic_ops/sysdeps/msftc/common32_defs.h (_InterlockedExchange,
_ReadWriteBarrier): Remove pragma for unused intrinsic.
* src/atomic_ops/sysdeps/msftc/x86_64.h (_ReadWriteBarrier,
_InterlockedExchange64): Likewise.
* src/atomic_ops/sysdeps/msftc/common32_defs.h (_InterlockedExchange):
Remove unused macro and prototype.

Add all AO control macros to configure (as templates)

* configure.ac (AO_USE_NANOSLEEP, AO_USE_NO_SIGNALS,
AO_USE_WIN32_PTHREADS, AO_TRACE_MALLOC, AO_GENERALIZE_ASM_BOOL_CAS,
AO_USE_PTHREAD_DEFS, AO_ASM_X64_AVAILABLE, AO_ASSUME_VISTA,
AO_ASSUME_WINDOWS98, AO_CMPXCHG16B_AVAILABLE, AO_FORCE_USE_SWP,
AO_NO_SPARC_V9, AO_OLD_STYLE_INTERLOCKED_COMPARE_EXCHANGE,
AO_UNIPROCESSOR, AO_USE_INTERLOCKED_INTRINSICS,
AO_USE_PENTIUM4_INSTRS, AO_USE_SYNC_CAS_BUILTIN,
AO_WEAK_DOUBLE_CAS_EMULATION): New AC template.

Prevent AO_USE_SYNC_CAS_BUILTIN redefinition in atomic_ops.h

* src/atomic_ops.h (AO_USE_SYNC_CAS_BUILTIN): Do not redefine if it
is already defined.

On altering CFLAGS value in configure place client flags at end

* configure.ac (CFLAGS): Always append old CFLAGS value (instead of
placing it at start).

Update ChangeLog

Workaround ICE9 A1 chip LL bug (MIPS)

* src/atomic_ops/sysdeps/gcc/mips.h (AO_MIPS_LL_FIX): New macro (used
to workaround LL bug in some chips); test AO_ICE9A1_LLSC_WAR new macro.
* src/atomic_ops/sysdeps/gcc/mips.h (AO_fetch_and_add,
AO_test_and_set, AO_compare_and_swap, AO_fetch_compare_and_swap):
Insert AO_MIPS_LL_FIX after every "ll" operation.

Implement fetch_and_add, test_and_set primitives for MIPS

* src/atomic_ops/sysdeps/gcc/mips.h (AO_fetch_and_add,
AO_HAVE_fetch_and_add, AO_test_and_set, AO_HAVE_test_and_set):
Implement (assuming 32-bit ABI); update FIXME.

Implement AO_fetch_compare_and_swap for MIPS

* src/atomic_ops/sysdeps/gcc/mips.h (AO_compare_and_swap,
AO_HAVE_compare_and_swap): Do not define if AO_GENERALIZE_ASM_BOOL_CAS.
* src/atomic_ops/sysdeps/gcc/mips.h (AO_fetch_compare_and_swap,
AO_HAVE_fetch_compare_and_swap): Implement (assuming 32-bit ABI);
remove FIXME.

Reformat gcc/ia64.h code

* src/atomic_ops/sysdeps/gcc/ia64.h (AO_int_fetch_and_add1_acquire,
AO_int_fetch_and_add1_release, AO_int_fetch_and_sub1_acquire,
AO_int_fetch_and_sub1_release, AO_int_fetch_compare_and_swap_acquire,
AO_int_fetch_compare_and_swap_release): Reformat code.

Update ChangeLog