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| author | paolo <paolo@138bc75d-0d04-0410-961f-82ee72b054a4> | 2007-05-21 22:48:38 +0000 |
|---|---|---|
| committer | paolo <paolo@138bc75d-0d04-0410-961f-82ee72b054a4> | 2007-05-21 22:48:38 +0000 |
| commit | 893358f78aabd274a5f60b825899945ae3ea15f3 (patch) | |
| tree | 4f20e8ac3ee34a06b520c092b3071efa0f505105 /gcc/doc/cpp.texi | |
| parent | 18f801dd3e5e4a1e4e372f5ccce6a41331a32c55 (diff) | |
| download | gcc-893358f78aabd274a5f60b825899945ae3ea15f3.tar.gz | |
2007-05-21 Paolo Bonzini <bonzini@gnu.org>
Paolo Carlini <pcarlini@suse.de>
Uros Bizjak <ubizjak@gmail.com>
* c-cppbuiltin.c (c_cpp_builtins): Define
__GCC_HAVE_SYNC_COMPARE_AND_SWAP_1, __GCC_HAVE_SYNC_COMPARE_AND_SWAP_2,
__GCC_HAVE_SYNC_COMPARE_AND_SWAP_4, __GCC_HAVE_SYNC_COMPARE_AND_SWAP_8,
__GCC_HAVE_SYNC_COMPARE_AND_SWAP_16, if appropriate.
* doc/cpp.texi ([Standard Predefined Macros]): Document.
2007-05-21 Paolo Bonzini <bonzini@gnu.org>
Paolo Carlini <pcarlini@suse.de>
Uros Bizjak <ubizjak@gmail.com>
* gcc.dg/gcc-have-sync-compare-and-swap.c,
gcc.target/i386/gcc-have-sync-compare-and-swap-1.c,
gcc.target/i386/gcc-have-sync-compare-and-swap-2.c,
gcc.target/i386/gcc-have-sync-compare-and-swap-3.c,
gcc.target/i386/gcc-have-sync-compare-and-swap-4.c,
New testcases.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@124926 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/doc/cpp.texi')
| -rw-r--r-- | gcc/doc/cpp.texi | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/gcc/doc/cpp.texi b/gcc/doc/cpp.texi index fe2a93bf59a..e6786cf8102 100644 --- a/gcc/doc/cpp.texi +++ b/gcc/doc/cpp.texi @@ -2179,6 +2179,14 @@ If GCC cannot determine the current date, it will emit a warning message (once per compilation) and @code{__TIMESTAMP__} will expand to @code{@w{"??? ??? ?? ??:??:?? ????"}}. +@item __GCC_HAVE_SYNC_COMPARE_AND_SWAP_1 +@itemx __GCC_HAVE_SYNC_COMPARE_AND_SWAP_2 +@itemx __GCC_HAVE_SYNC_COMPARE_AND_SWAP_4 +@itemx __GCC_HAVE_SYNC_COMPARE_AND_SWAP_8 +@itemx __GCC_HAVE_SYNC_COMPARE_AND_SWAP_16 +These macros are defined when the target processor supports atomic compare +and swap operations on operands 1, 2, 4, 8 or 16 bytes in length, respectively. + @end table @node System-specific Predefined Macros |