/* Definitions of various defaults for tm.h macros.
Copyright (C) 1992, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
- 2005
+ 2005, 2007, 2008
Free Software Foundation, Inc.
Contributed by Ron Guilmette (rfg@monkeys.com)
GCC is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
-Software Foundation; either version 2, or (at your option) any later
+Software Foundation; either version 3, or (at your option) any later
version.
GCC is distributed in the hope that it will be useful, but WITHOUT ANY
for more details.
You should have received a copy of the GNU General Public License
-along with GCC; see the file COPYING. If not, write to the Free
-Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301, USA. */
+along with GCC; see the file COPYING3. If not see
+<http://www.gnu.org/licenses/>. */
#ifndef GCC_DEFAULTS_H
#define GCC_DEFAULTS_H
/* If we have a definition of INCOMING_RETURN_ADDR_RTX, assume that
the rest of the DWARF 2 frame unwind support is also provided. */
-#if !defined (DWARF2_UNWIND_INFO) && defined (INCOMING_RETURN_ADDR_RTX)
+#if !defined (DWARF2_UNWIND_INFO) && defined (INCOMING_RETURN_ADDR_RTX) \
+ && !defined (TARGET_UNWIND_INFO)
#define DWARF2_UNWIND_INFO 1
#endif
#define DECIMAL128_TYPE_SIZE 128
#endif
+#ifndef SHORT_FRACT_TYPE_SIZE
+#define SHORT_FRACT_TYPE_SIZE BITS_PER_UNIT
+#endif
+
+#ifndef FRACT_TYPE_SIZE
+#define FRACT_TYPE_SIZE (BITS_PER_UNIT * 2)
+#endif
+
+#ifndef LONG_FRACT_TYPE_SIZE
+#define LONG_FRACT_TYPE_SIZE (BITS_PER_UNIT * 4)
+#endif
+
+#ifndef LONG_LONG_FRACT_TYPE_SIZE
+#define LONG_LONG_FRACT_TYPE_SIZE (BITS_PER_UNIT * 8)
+#endif
+
+#ifndef SHORT_ACCUM_TYPE_SIZE
+#define SHORT_ACCUM_TYPE_SIZE (SHORT_FRACT_TYPE_SIZE * 2)
+#endif
+
+#ifndef ACCUM_TYPE_SIZE
+#define ACCUM_TYPE_SIZE (FRACT_TYPE_SIZE * 2)
+#endif
+
+#ifndef LONG_ACCUM_TYPE_SIZE
+#define LONG_ACCUM_TYPE_SIZE (LONG_FRACT_TYPE_SIZE * 2)
+#endif
+
+#ifndef LONG_LONG_ACCUM_TYPE_SIZE
+#define LONG_LONG_ACCUM_TYPE_SIZE (LONG_LONG_FRACT_TYPE_SIZE * 2)
+#endif
+
/* Width in bits of a pointer. Mind the value of the macro `Pmode'. */
#ifndef POINTER_SIZE
#define POINTER_SIZE BITS_PER_WORD
#define PUSH_ARGS_REVERSED 0
#endif
+/* Default value for the alignment (in bits) a C conformant malloc has to
+ provide. This default is intended to be safe and always correct. */
+#ifndef MALLOC_ABI_ALIGNMENT
+#define MALLOC_ABI_ALIGNMENT BITS_PER_WORD
+#endif
+
/* If PREFERRED_STACK_BOUNDARY is not defined, set it to STACK_BOUNDARY.
STACK_BOUNDARY is required. */
#ifndef PREFERRED_STACK_BOUNDARY
#define PREFERRED_STACK_BOUNDARY STACK_BOUNDARY
#endif
+/* Set INCOMING_STACK_BOUNDARY to PREFERRED_STACK_BOUNDARY if it is not
+ defined. */
+#ifndef INCOMING_STACK_BOUNDARY
+#define INCOMING_STACK_BOUNDARY PREFERRED_STACK_BOUNDARY
+#endif
+
#ifndef TARGET_DEFAULT_PACK_STRUCT
#define TARGET_DEFAULT_PACK_STRUCT 0
#endif
#define PREFERRED_DEBUGGING_TYPE NO_DEBUG
#endif
-/* Define codes for all the float formats that we know of. */
-#define UNKNOWN_FLOAT_FORMAT 0
-#define IEEE_FLOAT_FORMAT 1
-#define VAX_FLOAT_FORMAT 2
-#define IBM_FLOAT_FORMAT 3
-#define C4X_FLOAT_FORMAT 4
-
-/* Default to IEEE float if not specified. Nearly all machines use it. */
-#ifndef TARGET_FLOAT_FORMAT
-#define TARGET_FLOAT_FORMAT IEEE_FLOAT_FORMAT
-#endif
-
#ifndef LARGEST_EXPONENT_IS_NORMAL
#define LARGEST_EXPONENT_IS_NORMAL(SIZE) 0
#endif
#define ROUND_TOWARDS_ZERO 0
#endif
-#ifndef MODE_HAS_NANS
-#define MODE_HAS_NANS(MODE) \
- (FLOAT_MODE_P (MODE) \
- && TARGET_FLOAT_FORMAT == IEEE_FLOAT_FORMAT \
- && !LARGEST_EXPONENT_IS_NORMAL (GET_MODE_BITSIZE (MODE)))
-#endif
-
-#ifndef MODE_HAS_INFINITIES
-#define MODE_HAS_INFINITIES(MODE) \
- (FLOAT_MODE_P (MODE) \
- && TARGET_FLOAT_FORMAT == IEEE_FLOAT_FORMAT \
- && !LARGEST_EXPONENT_IS_NORMAL (GET_MODE_BITSIZE (MODE)))
-#endif
-
-#ifndef MODE_HAS_SIGNED_ZEROS
-#define MODE_HAS_SIGNED_ZEROS(MODE) \
- (FLOAT_MODE_P (MODE) && TARGET_FLOAT_FORMAT == IEEE_FLOAT_FORMAT)
-#endif
-
-#ifndef MODE_HAS_SIGN_DEPENDENT_ROUNDING
-#define MODE_HAS_SIGN_DEPENDENT_ROUNDING(MODE) \
- (FLOAT_MODE_P (MODE) \
- && TARGET_FLOAT_FORMAT == IEEE_FLOAT_FORMAT \
- && !ROUND_TOWARDS_ZERO)
-#endif
-
#ifndef FLOAT_LIB_COMPARE_RETURNS_BOOL
#define FLOAT_LIB_COMPARE_RETURNS_BOOL(MODE, COMPARISON) false
#endif
/* By default, only attempt to parallelize bitwise operations, and
possibly adds/subtracts using bit-twiddling. */
#ifndef UNITS_PER_SIMD_WORD
-#define UNITS_PER_SIMD_WORD UNITS_PER_WORD
+#define UNITS_PER_SIMD_WORD(MODE) UNITS_PER_WORD
#endif
/* Determine whether __cxa_atexit, rather than atexit, is used to
#define TARGET_C99_FUNCTIONS 0
#endif
+/* Determine whether the target runtime library has
+ a sincos implementation following the GNU extension. */
+#ifndef TARGET_HAS_SINCOS
+#define TARGET_HAS_SINCOS 0
+#endif
+
/* Indicate that CLZ and CTZ are undefined at zero. */
#ifndef CLZ_DEFINED_VALUE_AT_ZERO
#define CLZ_DEFINED_VALUE_AT_ZERO(MODE, VALUE) 0
#define LEGITIMATE_PIC_OPERAND_P(X) 1
#endif
+#ifndef TARGET_MEM_CONSTRAINT
+#define TARGET_MEM_CONSTRAINT 'm'
+#endif
+
#ifndef REVERSIBLE_CC_MODE
#define REVERSIBLE_CC_MODE(MODE) 0
#endif
#define HARD_REGNO_NREGS_WITH_PADDING(REGNO, MODE) -1
#endif
+#ifndef OUTGOING_REG_PARM_STACK_SPACE
+#define OUTGOING_REG_PARM_STACK_SPACE(FNTYPE) 0
+#endif
+
+/* MAX_STACK_ALIGNMENT is the maximum stack alignment guaranteed by
+ the backend. MAX_SUPPORTED_STACK_ALIGNMENT is the maximum best
+ effort stack alignment supported by the backend. If the backend
+ supports stack alignment, MAX_SUPPORTED_STACK_ALIGNMENT and
+ MAX_STACK_ALIGNMENT are the same. Otherwise, the incoming stack
+ boundary will limit the maximum guaranteed stack alignment. */
+#ifdef MAX_STACK_ALIGNMENT
+#define MAX_SUPPORTED_STACK_ALIGNMENT MAX_STACK_ALIGNMENT
+#else
+#define MAX_STACK_ALIGNMENT STACK_BOUNDARY
+#define MAX_SUPPORTED_STACK_ALIGNMENT PREFERRED_STACK_BOUNDARY
+#endif
+
+#define SUPPORTS_STACK_ALIGNMENT (MAX_STACK_ALIGNMENT > STACK_BOUNDARY)
+
+#ifndef LOCAL_ALIGNMENT
+#define LOCAL_ALIGNMENT(TYPE, ALIGNMENT) ALIGNMENT
+#endif
+
+#ifndef STACK_SLOT_ALIGNMENT
+#define STACK_SLOT_ALIGNMENT(TYPE,MODE,ALIGN) \
+ ((TYPE) ? LOCAL_ALIGNMENT ((TYPE), (ALIGN)) : (ALIGN))
+#endif
+
#endif /* ! GCC_DEFAULTS_H */