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authorStan Shebs <shebs@codesourcery.com>1999-04-16 01:34:07 +0000
committerStan Shebs <shebs@codesourcery.com>1999-04-16 01:34:07 +0000
commit071ea11e85eb9d529cc5eb3d35f6247466a21b99 (patch)
tree5deda65b8d7b04d1f4cbc534c3206d328e1267ec /sim/common/sim-inline.h
parent1730ec6b1848f0f32154277f788fb29f88d8475b (diff)
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Initial creation of sourceware repository
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-/* This file is part of the program psim.
-
- Copyright (C) 1994-1997, Andrew Cagney <cagney@highland.com.au>
- Copyright (C) 1997, Free Software Foundation, Inc.
-
- This program 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 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
-
- */
-
-
-#ifndef _SIM_INLINE_H_
-#define _SIM_INLINE_H_
-
-
-/* INLINE CODE SELECTION:
-
- GCC -O3 attempts to inline any function or procedure in scope. The
- options below facilitate fine grained control over what is and what
- isn't made inline. For instance it can control things down to a
- specific modules static routines. Doing this allows the compiler
- to both eliminate the overhead of function calls and (as a
- consequence) also eliminate further dead code.
-
- On a CISC (x86) I've found that I can achieve an order of magintude
- speed improvement (x3-x5). In the case of RISC (sparc) while the
- performance gain isn't as great it is still significant.
-
- Each module is controled by the macro <module>_INLINE which can
- have the values described below
-
- 0 Do not inline any thing for the given module
-
- The following additional values are `bit fields' and can be
- combined.
-
- REVEAL_MODULE:
-
- Include the C file for the module into the file being compiled
- but do not make the functions within the module inline.
-
- While of no apparent benefit, this makes it possible for the
- included module, when compiled to inline its calls to what
- would otherwize be external functions.
-
- INLINE_MODULE:
-
- Make external functions within the module `inline'. Thus if
- the module is included into a file being compiled, calls to
- its funtions can be eliminated. 2 implies 1.
-
- INLINE_LOCALS:
-
- Make internal (static) functions within the module `inline'.
-
- In addition to this, modules have been put into two categories.
-
- INCLUDED_BY_MODULE
-
- eg sim-endian.h sim-bits.h
-
- Because these modules are small and simple and do not have
- any complex interdendencies they are configured, if
- <module>_INLINE is so enabled, to inline themselves in all
- modules that include those files.
-
- For the default build, this is a real win as all byte
- conversion and bit manipulation functions are inlined.
-
- !INCLUDED_BY_MODULE
-
- Complex modules - the rest
-
- These are all handled using the files sim-inline.h and
- sim-inline.c. The main simulator engine includes both of
- these and hence includes all remaining code.
-
- The following abreviations are available:
-
- INCLUDE_MODULE == (REVEAL_MODULE | INLINE_MODULE)
-
- ALL_INLINE == (REVEAL_MODULE | INLINE_MODULE | INLINE_LOCALS)
-
- ALL_BY_MODULE = (INCLUDED_BY_MODULE | ALL_INLINE)
-
- IMPLEMENTATION:
-
- The inline ability is enabled by prefixing every data / function
- declaration and definition with one of the following:
-
-
- INLINE_<module>
-
- Prefix to any global function that is a candidate for being
- inline.
-
- values - `', `static', `static INLINE'
-
-
- EXTERN_<module>
-
- Prefix to any global data structures for the module. Global
- functions that are not to be inlined shall also be prefixed
- with this.
-
- values - `', `static', `static'
-
-
- STATIC_INLINE_<module>
-
- Prefix to any local (static) function that is a candidate for
- being made inline.
-
- values - `static', `static INLINE'
-
-
- static
-
- Prefix all local data structures. Local functions that are not
- to be inlined shall also be prefixed with this.
-
- values - `static', `static'
-
- nb: will not work for modules that are being inlined for every
- use (white lie).
-
-
- extern
- #ifndef _SIM_INLINE_C_
- #endif
-
- Prefix to any declaration of a global object (function or
- variable) that should not be inlined and should have only one
- definition. The #ifndef wrapper goes around the definition
- propper to ensure that only one copy is generated.
-
- nb: this will not work when a module is being inlined for every
- use.
-
-
- STATIC_<module>
-
- Replaced by either `static' or `EXTERN_MODULE'.
-
-
- REALITY CHECK:
-
- This is not for the faint hearted. I've seen GCC get up to 500mb
- trying to compile what this can create.
-
- Some of the modules do not yet implement the WITH_INLINE_STATIC
- option. Instead they use the macro STATIC_INLINE to control their
- local function.
-
- Because of the way that GCC parses __attribute__(), the macro's
- need to be adjacent to the functioin name rather then at the start
- of the line vis:
-
- int STATIC_INLINE_MODULE f(void);
- void INLINE_MODULE *g(void);
-
- */
-
-
-#define REVEAL_MODULE 1
-#define INLINE_MODULE 2
-#define INCLUDE_MODULE (INLINE_MODULE | REVEAL_MODULE)
-#define INLINE_LOCALS 4
-#define ALL_INLINE 7
-#define ALL_BY_MODULE (INCLUDED_BY_MODULE | ALL_INLINE)
-
-#define INCLUDED_BY_MODULE 16
-#define REGPARM_MODULE 32
-
-
-/* Default macro to simplify control several of key the inlines */
-
-#ifndef DEFAULT_INLINE
-#define DEFAULT_INLINE INLINE_LOCALS
-#endif
-
-
-
-/* Your compilers inline prefix */
-
-#ifndef INLINE
-#if defined(__GNUC__) && defined(__OPTIMIZE__)
-#define INLINE __inline__
-#else
-#define INLINE /*inline*/
-#endif
-#endif
-
-
-
-/* Your compiler's static prefix */
-
-#ifndef STATIC_INLINE
-#define STATIC_INLINE static INLINE
-#endif
-
-
-
-/* Your compiler's no-return reserved word */
-
-#ifndef NORETURN
-#define NORETURN
-#endif
-
-
-
-/* Your compilers's unused reserved word */
-
-#if !defined (UNUSED)
-#if (!defined(__GNUC__) \
- || (__GNUC__ < 2) \
- || (__GNUC__ == 2 && __GNUC_MINOR__ < 7))
-#define UNUSED
-#else
-#define UNUSED __attribute__((__unused__))
-#endif
-#endif
-
-
-
-
-/* Your compilers nonstandard function call mechanism prefix */
-
-#if !defined REGPARM
-#if defined(__GNUC__) && (defined(__i386__) || defined(__i486__) || defined(__i586__) || defined(__i686__))
-#if (WITH_REGPARM && WITH_STDCALL)
-#define REGPARM __attribute__((__regparm__(WITH_REGPARM),__stdcall__))
-#else
-#if (WITH_REGPARM && !WITH_STDCALL)
-#define REGPARM __attribute__((__regparm__(WITH_REGPARM)))
-#else
-#if (!WITH_REGPARM && WITH_STDCALL)
-#define REGPARM __attribute__((__stdcall__))
-#endif
-#endif
-#endif
-#endif
-#endif
-
-#if !defined REGPARM
-#define REGPARM
-#endif
-
-
-
-/* sim-bits */
-
-#if (SIM_BITS_INLINE & REGPARM_MODULE)
-# define REGPARM_SIM_BITS REGPARM
-#else
-# define REGPARM_SIM_BITS
-#endif
-
-#if (((SIM_BITS_INLINE & INCLUDED_BY_MODULE) || defined(_SIM_INLINE_C_)) \
- && !defined(_SIM_BITS_C_) && (SIM_BITS_INLINE & INCLUDE_MODULE))
-# if (SIM_BITS_INLINE & INLINE_MODULE)
-# define INLINE_SIM_BITS(TYPE) static INLINE TYPE UNUSED
-# define EXTERN_SIM_BITS(TYPE) static TYPE UNUSED REGPARM_SIM_BITS
-# else
-# define INLINE_SIM_BITS(TYPE) static TYPE UNUSED REGPARM_SIM_BITS
-# define EXTERN_SIM_BITS(TYPE) static TYPE UNUSED REGPARM_SIM_BITS
-# endif
-#else
-# define INLINE_SIM_BITS(TYPE) TYPE REGPARM_SIM_BITS
-# define EXTERN_SIM_BITS(TYPE) TYPE REGPARM_SIM_BITS
-#endif
-
-#if (SIM_BITS_INLINE & INLINE_LOCALS)
-# define STATIC_INLINE_SIM_BITS(TYPE) static INLINE TYPE
-#else
-# define STATIC_INLINE_SIM_BITS(TYPE) static TYPE REGPARM_SIM_BITS
-#endif
-
-
-
-/* sim-core */
-
-#if (SIM_CORE_INLINE & REGPARM_MODULE)
-# define REGPARM_SIM_CORE REGPARM
-#else
-# define REGPARM_SIM_CORE
-#endif
-
-#if (((SIM_CORE_INLINE & INCLUDED_BY_MODULE) || defined(_SIM_INLINE_C_)) \
- && !defined(_SIM_CORE_C_) && (SIM_CORE_INLINE & INCLUDE_MODULE))
-# if (SIM_CORE_INLINE & INLINE_MODULE)
-# define INLINE_SIM_CORE(TYPE) static INLINE TYPE UNUSED
-# define EXTERN_SIM_CORE(TYPE) static TYPE UNUSED REGPARM_SIM_CORE
-#else
-# define INLINE_SIM_CORE(TYPE) static TYPE UNUSED REGPARM_SIM_CORE
-# define EXTERN_SIM_CORE(TYPE) static TYPE UNUSED REGPARM_SIM_CORE
-#endif
-#else
-# define INLINE_SIM_CORE(TYPE) TYPE REGPARM_SIM_CORE
-# define EXTERN_SIM_CORE(TYPE) TYPE REGPARM_SIM_CORE
-#endif
-
-#if (SIM_CORE_INLINE & INLINE_LOCALS)
-# define STATIC_INLINE_SIM_CORE(TYPE) static INLINE TYPE
-#else
-# define STATIC_INLINE_SIM_CORE(TYPE) static TYPE REGPARM_SIM_CORE
-#endif
-
-
-
-/* sim-endian */
-
-#if (SIM_ENDIAN_INLINE & REGPARM_MODULE)
-# define REGPARM_SIM_ENDIAN REGPARM
-#else
-# define REGPARM_SIM_ENDIAN
-#endif
-
-#if (((SIM_ENDIAN_INLINE & INCLUDED_BY_MODULE) || defined(_SIM_INLINE_C_)) \
- && !defined(_SIM_ENDIAN_C_) && (SIM_ENDIAN_INLINE & INCLUDE_MODULE))
-# if (SIM_ENDIAN_INLINE & INLINE_MODULE)
-# define INLINE_SIM_ENDIAN(TYPE) static INLINE TYPE UNUSED
-# define EXTERN_SIM_ENDIAN(TYPE) static TYPE UNUSED REGPARM_SIM_ENDIAN
-# else
-# define INLINE_SIM_ENDIAN(TYPE) static TYPE UNUSED REGPARM_SIM_ENDIAN
-# define EXTERN_SIM_ENDIAN(TYPE) static TYPE UNUSED REGPARM_SIM_ENDIAN
-# endif
-#else
-# define INLINE_SIM_ENDIAN(TYPE) TYPE REGPARM_SIM_ENDIAN
-# define EXTERN_SIM_ENDIAN(TYPE) TYPE REGPARM_SIM_ENDIAN
-#endif
-
-#if (SIM_ENDIAN_INLINE & INLINE_LOCALS)
-# define STATIC_INLINE_SIM_ENDIAN(TYPE) static INLINE TYPE
-#else
-# define STATIC_INLINE_SIM_ENDIAN(TYPE) static TYPE REGPARM_SIM_ENDIAN
-#endif
-
-
-
-/* sim-events */
-
-#if (SIM_EVENTS_INLINE & REGPARM_MODULE)
-# define REGPARM_SIM_EVENTS REGPARM
-#else
-# define REGPARM_SIM_EVENTS
-#endif
-
-#if (((SIM_EVENTS_INLINE & INCLUDED_BY_MODULE) || defined(_SIM_INLINE_C_)) \
- && !defined(_SIM_EVENTS_C_) && (SIM_EVENTS_INLINE & INCLUDE_MODULE))
-# if (SIM_EVENTS_INLINE & INLINE_MODULE)
-# define INLINE_SIM_EVENTS(TYPE) static INLINE TYPE UNUSED
-# define EXTERN_SIM_EVENTS(TYPE) static TYPE UNUSED REGPARM_SIM_EVENTS
-# else
-# define INLINE_SIM_EVENTS(TYPE) static TYPE UNUSED REGPARM_SIM_EVENTS
-# define EXTERN_SIM_EVENTS(TYPE) static TYPE UNUSED REGPARM_SIM_EVENTS
-# endif
-#else
-# define INLINE_SIM_EVENTS(TYPE) TYPE REGPARM_SIM_EVENTS
-# define EXTERN_SIM_EVENTS(TYPE) TYPE REGPARM_SIM_EVENTS
-#endif
-
-#if (SIM_EVENTS_INLINE & INLINE_LOCALS)
-# define STATIC_INLINE_SIM_EVENTS(TYPE) static INLINE TYPE
-#else
-# define STATIC_INLINE_SIM_EVENTS(TYPE) static TYPE REGPARM_SIM_EVENTS
-#endif
-
-
-
-/* sim-fpu */
-
-#if (SIM_FPU_INLINE & REGPARM_MODULE)
-# define REGPARM_SIM_FPU REGPARM
-#else
-# define REGPARM_SIM_FPU
-#endif
-
-#if (((SIM_FPU_INLINE & INCLUDED_BY_MODULE) || defined(_SIM_INLINE_C_)) \
- && !defined(_SIM_FPU_C_) && (SIM_FPU_INLINE & INCLUDE_MODULE))
-# if (SIM_FPU_INLINE & INLINE_MODULE)
-# define INLINE_SIM_FPU(TYPE) static INLINE TYPE UNUSED
-# define EXTERN_SIM_FPU(TYPE) static TYPE UNUSED REGPARM_SIM_FPU
-# else
-# define INLINE_SIM_FPU(TYPE) static TYPE UNUSED REGPARM_SIM_FPU
-# define EXTERN_SIM_FPU(TYPE) static TYPE UNUSED REGPARM_SIM_FPU
-# endif
-#else
-# define INLINE_SIM_FPU(TYPE) TYPE REGPARM_SIM_FPU
-# define EXTERN_SIM_FPU(TYPE) TYPE REGPARM_SIM_FPU
-#endif
-
-#if (SIM_FPU_INLINE & INLINE_LOCALS)
-# define STATIC_INLINE_SIM_FPU(TYPE) static INLINE TYPE
-#else
-# define STATIC_INLINE_SIM_FPU(TYPE) static TYPE REGPARM_SIM_FPU
-#endif
-
-
-
-/* sim-types */
-
-#if (SIM_TYPES_INLINE & REGPARM_MODULE)
-# define REGPARM_SIM_TYPES REGPARM
-#else
-# define REGPARM_SIM_TYPES
-#endif
-
-#if (((SIM_TYPES_INLINE & INCLUDED_BY_MODULE) || defined(_SIM_INLINE_C_)) \
- && !defined(_SIM_TYPES_C_) && (SIM_TYPES_INLINE & INCLUDE_MODULE))
-# if (SIM_TYPES_INLINE & INLINE_MODULE)
-# define INLINE_SIM_TYPES(TYPE) static INLINE TYPE UNUSED
-# define EXTERN_SIM_TYPES(TYPE) static TYPE UNUSED REGPARM_SIM_TYPES
-# else
-# define INLINE_SIM_TYPES(TYPE) static TYPE UNUSED REGPARM_SIM_TYPES
-# define EXTERN_SIM_TYPES(TYPE) static TYPE UNUSED REGPARM_SIM_TYPES
-# endif
-#else
-# define INLINE_SIM_TYPES(TYPE) TYPE REGPARM_SIM_TYPES
-# define EXTERN_SIM_TYPES(TYPE) TYPE REGPARM_SIM_TYPES
-#endif
-
-#if (SIM_TYPES_INLINE & INLINE_LOCALS)
-# define STATIC_INLINE_SIM_TYPES(TYPE) static INLINE TYPE
-#else
-# define STATIC_INLINE_SIM_TYPES(TYPE) static TYPE REGPARM_SIM_TYPES
-#endif
-
-
-
-/* icache */
-
-#if (ICACHE_INLINE & REGPARM_MODULE)
-# define REGPARM_ICACHE REGPARM
-#else
-# define REGPARM_ICACHE
-#endif
-
-#if (((ICACHE_INLINE & INCLUDED_BY_MODULE) || defined(_SIM_INLINE_C_)) \
- && !defined(_ICACHE_C_) && (ICACHE_INLINE & INCLUDE_MODULE))
-# if (ICACHE_INLINE & INLINE_MODULE)
-# define INLINE_ICACHE(TYPE) static INLINE TYPE UNUSED
-# define EXTERN_ICACHE(TYPE) static TYPE UNUSED REGPARM_ICACHE
-#else
-# define INLINE_ICACHE(TYPE) static TYPE UNUSED REGPARM_ICACHE
-# define EXTERN_ICACHE(TYPE) static TYPE UNUSED REGPARM_ICACHE
-#endif
-#else
-# define INLINE_ICACHE(TYPE) TYPE REGPARM_ICACHE
-# define EXTERN_ICACHE(TYPE) TYPE REGPARM_ICACHE
-#endif
-
-#if (ICACHE_INLINE & INLINE_LOCALS)
-# define STATIC_INLINE_ICACHE(TYPE) static INLINE TYPE
-#else
-# define STATIC_INLINE_ICACHE(TYPE) static TYPE REGPARM_ICACHE
-#endif
-
-
-
-/* idecode */
-
-#if (IDECODE_INLINE & REGPARM_MODULE)
-# define REGPARM_IDECODE REGPARM
-#else
-# define REGPARM_IDECODE
-#endif
-
-#if (((IDECODE_INLINE & INCLUDED_BY_MODULE) || defined(_SIM_INLINE_C_)) \
- && !defined(_IDECODE_C_) && (IDECODE_INLINE & INCLUDE_MODULE))
-# if (IDECODE_INLINE & INLINE_MODULE)
-# define INLINE_IDECODE(TYPE) static INLINE TYPE UNUSED
-# define EXTERN_IDECODE(TYPE) static TYPE UNUSED REGPARM_IDECODE
-#else
-# define INLINE_IDECODE(TYPE) static TYPE UNUSED REGPARM_IDECODE
-# define EXTERN_IDECODE(TYPE) static TYPE UNUSED REGPARM_IDECODE
-#endif
-#else
-# define INLINE_IDECODE(TYPE) TYPE REGPARM_IDECODE
-# define EXTERN_IDECODE(TYPE) TYPE REGPARM_IDECODE
-#endif
-
-#if (IDECODE_INLINE & INLINE_LOCALS)
-# define STATIC_INLINE_IDECODE(TYPE) static INLINE TYPE
-#else
-# define STATIC_INLINE_IDECODE(TYPE) static TYPE REGPARM_IDECODE
-#endif
-
-
-
-/* semantics */
-
-#if (SEMANTICS_INLINE & REGPARM_MODULE)
-# define REGPARM_SEMANTICS REGPARM
-#else
-# define REGPARM_SEMANTICS
-#endif
-
-#if (((SEMANTICS_INLINE & INCLUDED_BY_MODULE) || defined(_SIM_INLINE_C_)) \
- && !defined(_SEMANTICS_C_) && (SEMANTICS_INLINE & INCLUDE_MODULE))
-# if (SEMANTICS_INLINE & INLINE_MODULE)
-# define INLINE_SEMANTICS(TYPE) static INLINE TYPE UNUSED
-# define EXTERN_SEMANTICS(TYPE) static TYPE UNUSED REGPARM_SEMANTICS
-#else
-# define INLINE_SEMANTICS(TYPE) static TYPE UNUSED REGPARM_SEMANTICS
-# define EXTERN_SEMANTICS(TYPE) static TYPE UNUSED REGPARM_SEMANTICS
-#endif
-#else
-# define INLINE_SEMANTICS(TYPE) TYPE REGPARM_SEMANTICS
-# define EXTERN_SEMANTICS(TYPE) TYPE REGPARM_SEMANTICS
-#endif
-
-#if (SEMANTICS_INLINE & INLINE_LOCALS)
-# define STATIC_INLINE_SEMANTICS(TYPE) static INLINE TYPE
-#else
-# define STATIC_INLINE_SEMANTICS(TYPE) static TYPE REGPARM_SEMANTICS
-#endif
-
-
-
-/* support */
-
-#if (SUPPORT_INLINE & REGPARM_MODULE)
-# define REGPARM_SUPPORT REGPARM
-#else
-# define REGPARM_SUPPORT
-#endif
-
-#if (((SUPPORT_INLINE & INCLUDED_BY_MODULE) || defined(_SIM_INLINE_C_)) \
- && !defined(_SUPPORT_C_) && (SUPPORT_INLINE & INCLUDE_MODULE))
-# if (SUPPORT_INLINE & INLINE_MODULE)
-# define INLINE_SUPPORT(TYPE) static INLINE TYPE UNUSED
-# define EXTERN_SUPPORT(TYPE) static TYPE UNUSED REGPARM_SUPPORT
-#else
-# define INLINE_SUPPORT(TYPE) static TYPE UNUSED REGPARM_SUPPORT
-# define EXTERN_SUPPORT(TYPE) static TYPE UNUSED REGPARM_SUPPORT
-#endif
-#else
-# define INLINE_SUPPORT(TYPE) TYPE REGPARM_SUPPORT
-# define EXTERN_SUPPORT(TYPE) TYPE REGPARM_SUPPORT
-#endif
-
-#if (SUPPORT_INLINE & INLINE_LOCALS)
-# define STATIC_INLINE_SUPPORT(TYPE) static INLINE TYPE
-#else
-# define STATIC_INLINE_SUPPORT(TYPE) static TYPE REGPARM_SUPPORT
-#endif
-
-
-
-#endif