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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/c-cppbuiltin.c | |
| 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/c-cppbuiltin.c')
| -rw-r--r-- | gcc/c-cppbuiltin.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/gcc/c-cppbuiltin.c b/gcc/c-cppbuiltin.c index 544050a4878..1b52da02975 100644 --- a/gcc/c-cppbuiltin.c +++ b/gcc/c-cppbuiltin.c @@ -547,6 +547,33 @@ c_cpp_builtins (cpp_reader *pfile) if (c_dialect_cxx () && TYPE_UNSIGNED (wchar_type_node)) cpp_define (pfile, "__WCHAR_UNSIGNED__"); + /* Tell source code if the compiler makes sync_compare_and_swap + builtins available. */ +#ifdef HAVE_sync_compare_and_swapqi + if (HAVE_sync_compare_and_swapqi) + cpp_define (pfile, "__GCC_HAVE_SYNC_COMPARE_AND_SWAP_1"); +#endif + +#ifdef HAVE_sync_compare_and_swaphi + if (HAVE_sync_compare_and_swaphi) + cpp_define (pfile, "__GCC_HAVE_SYNC_COMPARE_AND_SWAP_2"); +#endif + +#ifdef HAVE_sync_compare_and_swapsi + if (HAVE_sync_compare_and_swapsi) + cpp_define (pfile, "__GCC_HAVE_SYNC_COMPARE_AND_SWAP_4"); +#endif + +#ifdef HAVE_sync_compare_and_swapdi + if (HAVE_sync_compare_and_swapdi) + cpp_define (pfile, "__GCC_HAVE_SYNC_COMPARE_AND_SWAP_8"); +#endif + +#ifdef HAVE_sync_compare_and_swapti + if (HAVE_sync_compare_and_swapti) + cpp_define (pfile, "__GCC_HAVE_SYNC_COMPARE_AND_SWAP_16"); +#endif + /* Make the choice of ObjC runtime visible to source code. */ if (c_dialect_objc () && flag_next_runtime) cpp_define (pfile, "__NEXT_RUNTIME__"); |