/* Define builtin-in macros for the C family front ends.
- Copyright (C) 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
+ Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007
+ Free Software Foundation, Inc.
This file is part of GCC.
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 *,
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
/* The radix of the exponent representation. */
if (type == float_type_node)
builtin_define_with_int_value ("__FLT_RADIX__", fmt->b);
- log10_b = log10_2 * fmt->log2_b;
+ log10_b = log10_2;
/* The number of radix digits, p, in the floating-point significand. */
sprintf (name, "__%s_MANT_DIG__", name_prefix);
char *p;
strcpy (buf, "0x0.");
- n = fmt->p * fmt->log2_b;
+ n = fmt->p;
for (i = 0, p = buf + 4; i + 3 < n; i += 4)
*p++ = 'f';
if (i < n)
*p++ = "08ce"[n - i];
- sprintf (p, "p%d", fmt->emax * fmt->log2_b);
+ sprintf (p, "p%d", fmt->emax);
if (fmt->pnan < fmt->p)
{
/* This is an IBM extended double format made up of two IEEE
/* The minimum normalized positive floating-point number,
b**(emin-1). */
sprintf (name, "__%s_MIN__", name_prefix);
- sprintf (buf, "0x1p%d", (fmt->emin - 1) * fmt->log2_b);
+ sprintf (buf, "0x1p%d", fmt->emin - 1);
builtin_define_with_hex_fp_value (name, type, decimal_dig, buf, fp_suffix, fp_cast);
/* The difference between 1 and the least value greater than 1 that is
if (fmt->pnan < fmt->p)
/* This is an IBM extended double format, so 1.0 + any double is
representable precisely. */
- sprintf (buf, "0x1p%d", (fmt->emin - fmt->p) * fmt->log2_b);
+ sprintf (buf, "0x1p%d", fmt->emin - fmt->p);
else
- sprintf (buf, "0x1p%d", (1 - fmt->p) * fmt->log2_b);
+ sprintf (buf, "0x1p%d", 1 - fmt->p);
builtin_define_with_hex_fp_value (name, type, decimal_dig, buf, fp_suffix, fp_cast);
/* For C++ std::numeric_limits<T>::denorm_min. The minimum denormalized
sprintf (name, "__%s_DENORM_MIN__", name_prefix);
if (fmt->has_denorm)
{
- sprintf (buf, "0x1p%d", (fmt->emin - fmt->p) * fmt->log2_b);
+ sprintf (buf, "0x1p%d", fmt->emin - fmt->p);
builtin_define_with_hex_fp_value (name, type, decimal_dig,
buf, fp_suffix, fp_cast);
}
cpp_define (pfile, "__GXX_WEAK__=0");
if (warn_deprecated)
cpp_define (pfile, "__DEPRECATED");
+ if (flag_cpp0x)
+ cpp_define (pfile, "__GXX_EXPERIMENTAL_CXX0X__");
}
/* Note that we define this for C as well, so that we know if
__attribute__((cleanup)) will interface with EH. */
/* Misc. */
builtin_define_with_value ("__VERSION__", version_string, 1);
+ if (flag_gnu89_inline)
+ cpp_define (pfile, "__GNUC_GNU_INLINE__");
+ else
+ cpp_define (pfile, "__GNUC_STDC_INLINE__");
+
/* Definitions for LP64 model. */
if (TYPE_PRECISION (long_integer_type_node) == 64
&& POINTER_SIZE == 64
builtin_define_with_int_value ("__pic__", flag_pic);
builtin_define_with_int_value ("__PIC__", flag_pic);
}
+ if (flag_pie)
+ {
+ builtin_define_with_int_value ("__pie__", flag_pie);
+ builtin_define_with_int_value ("__PIE__", flag_pie);
+ }
if (flag_iso)
cpp_define (pfile, "__STRICT_ANSI__");
if (c_dialect_cxx () && TYPE_UNSIGNED (wchar_type_node))
cpp_define (pfile, "__WCHAR_UNSIGNED__");
+ /* Tell source code if the compiler makes sync_compare_and_swap
+ builtins available. */
+#ifdef HAVE_sync_compare_and_swapqi
+ if (HAVE_sync_compare_and_swapqi)
+ cpp_define (pfile, "__GCC_HAVE_SYNC_COMPARE_AND_SWAP_1");
+#endif
+
+#ifdef HAVE_sync_compare_and_swaphi
+ if (HAVE_sync_compare_and_swaphi)
+ cpp_define (pfile, "__GCC_HAVE_SYNC_COMPARE_AND_SWAP_2");
+#endif
+
+#ifdef HAVE_sync_compare_and_swapsi
+ if (HAVE_sync_compare_and_swapsi)
+ cpp_define (pfile, "__GCC_HAVE_SYNC_COMPARE_AND_SWAP_4");
+#endif
+
+#ifdef HAVE_sync_compare_and_swapdi
+ if (HAVE_sync_compare_and_swapdi)
+ cpp_define (pfile, "__GCC_HAVE_SYNC_COMPARE_AND_SWAP_8");
+#endif
+
+#ifdef HAVE_sync_compare_and_swapti
+ if (HAVE_sync_compare_and_swapti)
+ cpp_define (pfile, "__GCC_HAVE_SYNC_COMPARE_AND_SWAP_16");
+#endif
+
/* Make the choice of ObjC runtime visible to source code. */
if (c_dialect_objc () && flag_next_runtime)
cpp_define (pfile, "__NEXT_RUNTIME__");
if (flag_openmp)
cpp_define (pfile, "_OPENMP=200505");
+ if (lang_fortran)
+ cpp_define (pfile, "__GFORTRAN__=1");
+
+ 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)
new appearance would clobber any existing args. */
if (TARGET_DECLSPEC)
builtin_define ("__declspec(x)=__attribute__((x))");
+
+ /* If decimal floating point is supported, tell the user if the
+ alternate format (BID) is used instead of the standard (DPD)
+ format. */
+ if (ENABLE_DECIMAL_FLOAT && ENABLE_DECIMAL_BID_FORMAT)
+ cpp_define (pfile, "__DECIMAL_BID_FORMAT__");
}
/* Pass an object-like macro. If it doesn't lie in the user's
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