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[committed] TILE-Gx/TILEPro: define __GCC_HAVE_SYNX_COMPARE_AND_SWAP_<n>


The patch defines __GCC_HAVE_SYNX_COMPARE_AND_SWAP_<n> for those that
are provided in libgcc.

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 3a84318..5d7adb7 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,5 +1,12 @@
 2014-01-25  Walter Lee  <walt@tilera.com>
 
+	* config/tilegx/tilegx-c.c (tilegx_cpu_cpp_builtins): 
+	Define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_{1,2}.
+	* config/tilegx/tilepro-c.c (tilepro_cpu_cpp_builtins): 
+	Define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_{1,2,4,8}.
+
+2014-01-25  Walter Lee  <walt@tilera.com>
+
 	* config/tilegx/tilegx.c (tilegx_function_arg): Start 16-byte
 	arguments on even registers.
 	(tilegx_function_arg_advance): Ditto.
diff --git a/gcc/config/tilegx/tilegx-c.c b/gcc/config/tilegx/tilegx-c.c
index 909659b..e71965c 100644
--- a/gcc/config/tilegx/tilegx-c.c
+++ b/gcc/config/tilegx/tilegx-c.c
@@ -47,6 +47,9 @@ tilegx_cpu_cpp_builtins (struct cpp_reader *pfile)
   if (TARGET_32BIT)
     builtin_define ("__tilegx32__");
 
+  builtin_define ("__GCC_HAVE_SYNC_COMPARE_AND_SWAP_1");
+  builtin_define ("__GCC_HAVE_SYNC_COMPARE_AND_SWAP_2");
+
   TILEGX_CPU_CPP_ENDIAN_BUILTINS ();
   GNU_USER_TARGET_OS_CPP_BUILTINS ();
 }
diff --git a/gcc/config/tilepro/tilepro-c.c b/gcc/config/tilepro/tilepro-c.c
index dc2e3d0..4fd0337 100644
--- a/gcc/config/tilepro/tilepro-c.c
+++ b/gcc/config/tilepro/tilepro-c.c
@@ -44,6 +44,11 @@ tilepro_cpu_cpp_builtins (struct cpp_reader *pfile)
   builtin_define ("__tile_chip__=1");
   builtin_define ("__tile_chip_rev__=0");
 
+  builtin_define ("__GCC_HAVE_SYNC_COMPARE_AND_SWAP_1");
+  builtin_define ("__GCC_HAVE_SYNC_COMPARE_AND_SWAP_2");
+  builtin_define ("__GCC_HAVE_SYNC_COMPARE_AND_SWAP_4");
+  builtin_define ("__GCC_HAVE_SYNC_COMPARE_AND_SWAP_8");
+
   TILEPRO_CPU_CPP_ENDIAN_BUILTINS ();
   GNU_USER_TARGET_OS_CPP_BUILTINS ();
 }


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