diff options
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 4eca2d4..729cb0b 100644 --- a/gcc/c-cppbuiltin.c +++ b/gcc/c-cppbuiltin.c @@ -58,6 +58,7 @@ static void builtin_define_with_hex_fp_value (const char *, tree, static void builtin_define_stdint_macros (void); static void builtin_define_type_max (const char *, tree, int); static void builtin_define_type_precision (const char *, tree); +static void builtin_define_type_sizeof (const char *, tree); static void builtin_define_float_constants (const char *, const char *, const char *, @@ -71,6 +72,14 @@ builtin_define_type_precision (const char *name, tree type) builtin_define_with_int_value (name, TYPE_PRECISION (type)); } +/* Define NAME with value TYPE size_unit. */ +static void +builtin_define_type_sizeof (const char *name, tree type) +{ + builtin_define_with_int_value (name, + tree_low_cst (TYPE_SIZE_UNIT (type), 1)); +} + /* Define the float.h constants for TYPE using NAME_PREFIX, FP_SUFFIX, and FP_CAST. */ static void @@ -549,6 +558,24 @@ c_cpp_builtins (cpp_reader *pfile) if (flag_openmp) cpp_define (pfile, "_OPENMP=200505"); + builtin_define_type_sizeof ("__SIZEOF_INT__", integer_type_node); + builtin_define_type_sizeof ("__SIZEOF_LONG__", long_integer_type_node); + builtin_define_type_sizeof ("__SIZEOF_LONG_LONG__", + long_long_integer_type_node); + builtin_define_type_sizeof ("__SIZEOF_SHORT__", short_integer_type_node); + builtin_define_type_sizeof ("__SIZEOF_FLOAT__", float_type_node); + builtin_define_type_sizeof ("__SIZEOF_DOUBLE__", double_type_node); + builtin_define_type_sizeof ("__SIZEOF_LONG_DOUBLE__", long_double_type_node); + builtin_define_type_sizeof ("__SIZEOF_SIZE_T__", size_type_node); + builtin_define_type_sizeof ("__SIZEOF_WCHAR_T__", wchar_type_node); + builtin_define_type_sizeof ("__SIZEOF_WINT_T__", wint_type_node); + builtin_define_type_sizeof ("__SIZEOF_PTRDIFF_T__", + unsigned_ptrdiff_type_node); + /* ptr_type_node can't be used here since ptr_mode is only set when + toplev calls backend_init which is not done with -E switch. */ + builtin_define_with_int_value ("__SIZEOF_POINTER__", + POINTER_SIZE / BITS_PER_UNIT); + /* A straightforward target hook doesn't work, because of problems linking that hook's body when part of non-C front ends. */ # define preprocessing_asm_p() (cpp_get_options (pfile)->lang == CLK_ASM) |