diff options
Diffstat (limited to 'gcc/java/builtins.c')
| -rw-r--r-- | gcc/java/builtins.c | 19 |
1 files changed, 17 insertions, 2 deletions
diff --git a/gcc/java/builtins.c b/gcc/java/builtins.c index 9b5353b..ef8854a 100644 --- a/gcc/java/builtins.c +++ b/gcc/java/builtins.c @@ -54,7 +54,7 @@ static tree compareAndSwapLong_builtin (tree, tree); static tree compareAndSwapObject_builtin (tree, tree); static tree putVolatile_builtin (tree, tree); static tree getVolatile_builtin (tree, tree); - +static tree VMSupportsCS8_builtin (tree, tree); /* Functions of this type are used to inline a given call. Such a @@ -121,6 +121,8 @@ static GTY(()) struct builtin_record java_builtins[] = { { "sun.misc.Unsafe" }, { "getIntVolatile" }, getVolatile_builtin, 0}, { { "sun.misc.Unsafe" }, { "getLongVolatile" }, getVolatile_builtin, 0}, { { "sun.misc.Unsafe" }, { "getLong" }, getVolatile_builtin, 0}, + { { "java.util.concurrent.atomic.AtomicLong" }, { "VMSupportsCS8" }, + VMSupportsCS8_builtin, 0}, { { NULL }, { NULL }, NULL, END_BUILTINS } }; @@ -432,7 +434,20 @@ getVolatile_builtin (tree method_return_type ATTRIBUTE_UNUSED, return stmt; } - + +static tree +VMSupportsCS8_builtin (tree method_return_type, + tree method_arguments ATTRIBUTE_UNUSED) +{ + enum machine_mode mode = TYPE_MODE (long_type_node); + gcc_assert (method_return_type == boolean_type_node); + if (sync_compare_and_swap_cc[mode] != CODE_FOR_nothing + || sync_compare_and_swap[mode] != CODE_FOR_nothing) + return boolean_true_node; + else + return boolean_false_node; +} + #define BUILTIN_NOTHROW 1 |