Merge lto branch into trunk.

[thirdparty/gcc.git] / gcc / builtins.c

diff --git a/gcc/builtins.c b/gcc/builtins.c
index 64840e1f620fceaf9ee7578294b64d5c63580df8..c9bc23010a1c2fb3b6dd10bc6886a477279ce3f0 100644 (file)
--- a/gcc/builtins.c
+++ b/gcc/builtins.c
@@ -230,6 +230,8 @@ static tree do_mpfr_bessel_n (tree, tree, tree,
 static tree do_mpfr_remquo (tree, tree, tree);
 static tree do_mpfr_lgamma_r (tree, tree, tree);
 
+/* Return true if NAME starts with __builtin_ or __sync_.  */
+
 bool
 is_builtin_name (const char *name)
 {
@@ -240,6 +242,16 @@ is_builtin_name (const char *name)
   return false;
 }
 
+
+/* Return true if DECL is a function symbol representing a built-in.  */
+
+bool
+is_builtin_fn (tree decl)
+{
+  return TREE_CODE (decl) == FUNCTION_DECL && DECL_BUILT_IN (decl);
+}
+
+
 /* Return true if NODE should be considered for inline expansion regardless
    of the optimization level.  This means whenever a function is invoked with
    its "internal" name, which normally contains the prefix "__builtin".  */
@@ -13856,3 +13868,41 @@ fold_call_stmt (gimple stmt, bool ignore)
     }
   return NULL_TREE;
 }
+
+/* Look up the function in built_in_decls that corresponds to DECL
+   and set ASMSPEC as its user assembler name.  DECL must be a
+   function decl that declares a builtin.  */
+
+void
+set_builtin_user_assembler_name (tree decl, const char *asmspec)
+{
+  tree builtin;
+  gcc_assert (TREE_CODE (decl) == FUNCTION_DECL
+             && DECL_BUILT_IN_CLASS (decl) == BUILT_IN_NORMAL
+             && asmspec != 0);
+
+  builtin = built_in_decls [DECL_FUNCTION_CODE (decl)];
+  set_user_assembler_name (builtin, asmspec);
+  switch (DECL_FUNCTION_CODE (decl))
+    {
+    case BUILT_IN_MEMCPY:
+      init_block_move_fn (asmspec);
+      memcpy_libfunc = set_user_assembler_libfunc ("memcpy", asmspec);
+      break;
+    case BUILT_IN_MEMSET:
+      init_block_clear_fn (asmspec);
+      memset_libfunc = set_user_assembler_libfunc ("memset", asmspec);
+      break;
+    case BUILT_IN_MEMMOVE:
+      memmove_libfunc = set_user_assembler_libfunc ("memmove", asmspec);
+      break;
+    case BUILT_IN_MEMCMP:
+      memcmp_libfunc = set_user_assembler_libfunc ("memcmp", asmspec);
+      break;
+    case BUILT_IN_ABORT:
+      abort_libfunc = set_user_assembler_libfunc ("abort", asmspec);
+      break;
+    default:
+      break;
+    }
+}