diff options
Diffstat (limited to 'gcc/builtins.c')
| -rw-r--r-- | gcc/builtins.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/gcc/builtins.c b/gcc/builtins.c index 6b6440f0c58..39f603f4d85 100644 --- a/gcc/builtins.c +++ b/gcc/builtins.c @@ -174,6 +174,11 @@ static void simplify_builtin_next_arg (tree); static void simplify_builtin_va_start (tree); static tree simplify_builtin_sprintf (tree, int); +/* APPLE LOCAL begin constant cfstrings */ +/* This is broken, builtins.c should not be referencing something in + c-common. */ +extern tree build_cfstring_ascii (tree); +/* APPLE LOCAL end constant cfstrings */ /* Return the alignment in bits of EXP, a pointer valued expression. But don't return more than MAX_ALIGN no matter what. @@ -5752,6 +5757,15 @@ expand_builtin (tree exp, rtx target, rtx subtarget, enum machine_mode mode, case BUILT_IN_PROFILE_FUNC_EXIT: return expand_builtin_profile_func (true); + /* APPLE LOCAL begin constant cfstrings */ + case BUILT_IN___CFSTRINGMAKECONSTANTSTRING: + /* if __builtin___CFStringMakeConstantString made it intact this far, + past the constant folding, it means that the argument is not a + constant. This is a no-no. */ + error ("CFString literal expression not constant"); + return const0_rtx; + /* APPLE LOCAL end constant cfstrings */ + case BUILT_IN_INIT_TRAMPOLINE: return expand_builtin_init_trampoline (arglist); case BUILT_IN_ADJUST_TRAMPOLINE: @@ -6946,6 +6960,26 @@ fold_builtin_1 (tree exp) } break; + /* APPLE LOCAL begin constant cfstrings */ + case BUILT_IN___CFSTRINGMAKECONSTANTSTRING: + /* This may only be used in conjunction with '-fconstant-cfstrings'. */ + if (!flag_constant_cfstrings) + { + error ("built-in function `%s' requires `-fconstant-cfstrings' flag", + IDENTIFIER_POINTER (DECL_NAME (fndecl))); + return error_mark_node; + } + if (validate_arglist (arglist, POINTER_TYPE, VOID_TYPE)) + { + tree offset_node; + tree literal = string_constant (TREE_VALUE (arglist), &offset_node); + + if (literal) + return build_cfstring_ascii (literal); + } + break; + /* APPLE LOCAL end constant cfstrings */ + case BUILT_IN_FABS: case BUILT_IN_FABSF: case BUILT_IN_FABSL: |