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riscv-gcc-1
Commit 9612ab65 by Zack Weinberg Committed by Zack Weinberg
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configure.in: Move check for unsigned enumerated bitfields to macro in aclocal.m4. 

	* configure.in: Move check for unsigned enumerated bitfields
	to macro in aclocal.m4.  Disable it for now.
	* configure, config.in: Regenerate.
	* system.h: Don't do anything with ONLY_INT_FIELDS.  Use the
	unsigned-int form of ENUM_BITFIELD() unless being compiled by GCC.
	* varasm.c (struct rtx_const): Use ENUM_BITFIELD().  Move enum
	kind above its first use.

	* config/xm-interix.h, config/alpha/xm-alpha.h,
	config/i370/xm-linux.h, config/i386/xm-beos.h,
	config/i386/xm-mingw32.h, config/mips/xm-mips.h,
	config/pa/xm-pa.h, config/pa/xm-pa64hpux.h,
	config/rs6000/xm-beos.h, config/rs6000/xm-sysv4.h,
	Don't define ONLY_INT_FIELDS under any circumstances.

	* config/pa/xm-pa.h: Don't define __BSD_NET2__.

	* config/pa/xm-pahpux.h, config/pa/xm-papro.h,
	config/sparc/xm-sysv4.h: Delete - now identical with some
	other xm header.
	* config.gcc (hppa targets): Replace xm-pahpux.h and
	xm-papro.h with implicit xm-pa.h.
	(sparc targets): Replace xm-sysv4.h with implicit or explicit
	xm-sparc.h.

From-SVN: r40399
parent 533dfde0
Showing with 35 additions and 188 deletions
gcc/ChangeLog
2001-03-11 Zack Weinberg <zackw@stanford.edu>
* configure.in: Move check for unsigned enumerated bitfields
to macro in aclocal.m4. Disable it for now.
* configure, config.in: Regenerate.
* system.h: Don't do anything with ONLY_INT_FIELDS. Use the
unsigned-int form of ENUM_BITFIELD() unless being compiled by GCC.
* varasm.c (struct rtx_const): Use ENUM_BITFIELD(). Move enum
kind above its first use.
* config/xm-interix.h, config/alpha/xm-alpha.h,
config/i370/xm-linux.h, config/i386/xm-beos.h,
config/i386/xm-mingw32.h, config/mips/xm-mips.h,
config/pa/xm-pa.h, config/pa/xm-pa64hpux.h,
config/rs6000/xm-beos.h, config/rs6000/xm-sysv4.h,
Don't define ONLY_INT_FIELDS under any circumstances.
* config/pa/xm-pa.h: Don't define __BSD_NET2__.
* config/pa/xm-pahpux.h, config/pa/xm-papro.h,
config/sparc/xm-sysv4.h: Delete - now identical with some
other xm header.
* config.gcc (hppa targets): Replace xm-pahpux.h and
xm-papro.h with implicit xm-pa.h.
(sparc targets): Replace xm-sysv4.h with implicit or explicit
xm-sparc.h.
2001-03-12 Aldy Hernandez <aldyh@redhat.com>
* reload1.c (reload_cse_simplify): Call reload_cse_simplify_set
......
gcc/config.in
......@@ -305,9 +305,6 @@
/* Define if you have a working <inttypes.h> header file. */
#undef HAVE_INTTYPES_H
/* Define if enumerated bitfields are treated as unsigned values. */
#undef ENUM_BITFIELDS_ARE_UNSIGNED
/* Define if printf supports %p. */
#undef HAVE_PRINTF_PTR
......
gcc/config/alpha/xm-alpha.h
......@@ -22,10 +22,3 @@ Boston, MA 02111-1307, USA. */
/* This describes the machine the compiler is hosted on. */
#define HOST_BITS_PER_LONG 64
/* The host compiler has problems with enum bitfields since it makes
them signed so we can't fit all our codes in. */
#ifndef __GNUC__
#define ONLY_INT_FIELDS
#endif
gcc/config/i370/xm-linux.h
......@@ -25,8 +25,3 @@ Boston, MA 02111-1307, USA. */
#define HOST_FLOAT_FORMAT IEEE_FLOAT_FORMAT
#define HOST_WORDS_BIG_ENDIAN
/* If not compiled with GNU C, use only int bitfields. */
#ifndef __GNUC__
#define ONLY_INT_FIELDS
#endif
gcc/config/i370/xm-oe.h
......@@ -27,7 +27,5 @@ Boston, MA 02111-1307, USA. */
#define HOST_FLOAT_FORMAT IBM_FLOAT_FORMAT
#define HOST_EBCDIC 1
#define ONLY_INT_FIELDS 1
/* Arguments to use with `exit'. */
#define FATAL_EXIT_CODE 12
gcc/config/i386/xm-beos.h
......@@ -25,8 +25,6 @@ Boston, MA 02111-1307, USA. */
#include <sys/wait.h>
#endif
#define ONLY_INT_FIELDS
/* use ANSI/SYSV style byte manipulation routines instead of BSD ones */
#undef bcopy
......
gcc/config/i386/xm-mingw32.h
......@@ -19,10 +19,6 @@ along with GNU CC; see the file COPYING. If not, write to
the Free Software Foundation, 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#ifndef ONLY_INT_FIELD
#define ONLY_INT_FIELDS 1
#endif
#define environ _environ
/* Even though we support "/", allow "\" since everybody tests both. */
......
gcc/config/mips/xm-mips.h
......@@ -29,10 +29,3 @@ Boston, MA 02111-1307, USA. */
VAX_FLOAT_FORMAT, and UNKNOWN_FLOAT_FORMAT. */
#define HOST_FLOAT_FORMAT IEEE_FLOAT_FORMAT
#ifndef __GNUC__
/* The MIPS compiler gets it wrong, and treats enumerated bitfields
as signed quantities, making it impossible to use an 8-bit enum
for compiling GNU C++. */
#define ONLY_INT_FIELDS 1
#endif
gcc/config/pa/xm-pa.h
......@@ -23,13 +23,3 @@ Boston, MA 02111-1307, USA. */
/* Doubles are stored in memory with the high order word first. This
matters when cross-compiling. */
#define HOST_WORDS_BIG_ENDIAN 1
/* Place any machine-dependent include files here, in case we
are bootstrapping. */
/* 4.3BSD, OSF1 and Lites on the PA are all derived from NET2 or
later code from Berkeley. */
#define __BSD_NET2__
/* HP's compiler has problems with enum bitfields. */
#define ONLY_INT_FIELDS
gcc/config/pa/xm-pa64hpux.h
......@@ -24,6 +24,3 @@ Boston, MA 02111-1307, USA. */
/* Doubles are stored in memory with the high order word first. This
matters when cross-compiling. */
#define HOST_WORDS_BIG_ENDIAN 1
/* HP's compiler has problems with enum bitfields. */
#define ONLY_INT_FIELDS
gcc/config/pa/xm-pahpux.h deleted 100644 → 0
/* Configuration for GNU C-compiler for PA-RISC.
Copyright (C) 1988, 1995, 1997, 2001 Free Software Foundation, Inc.
Contributed by Michael Tiemann (tiemann@cygnus.com).
This file is part of GNU CC.
GNU CC 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 version.
GNU CC 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 GNU CC; see the file COPYING. If not, write to
the Free Software Foundation, 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
/* This describes the machine the compiler is hosted on. */
/* Doubles are stored in memory with the high order word first. This
matters when cross-compiling. */
#define HOST_WORDS_BIG_ENDIAN 1
/* HP's compiler has problems with enum bitfields. */
#define ONLY_INT_FIELDS
gcc/config/pa/xm-papro.h deleted 100644 → 0
/* Configuration for GNU C-compiler for PA-RISC.
Copyright (C) 1994, 1995, 2001 Free Software Foundation, Inc.
Contributed by Michael Tiemann (tiemann@cygnus.com).
This file is part of GNU CC.
GNU CC 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 version.
GNU CC 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 GNU CC; see the file COPYING. If not, write to
the Free Software Foundation, 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
/* This describes the machine the compiler is hosted on. */
/* Doubles are stored in memory with the high order word first. This
matters when cross-compiling. */
#define HOST_WORDS_BIG_ENDIAN 1
/* HP's compiler has problems with enum bitfields. */
#define ONLY_INT_FIELDS
gcc/config/rs6000/xm-beos.h
......@@ -24,9 +24,6 @@ Boston, MA 02111-1307, USA. */
/* This describes the machine the compiler is hosted on. */
#define HOST_WORDS_BIG_ENDIAN
/* Use only int bitfields. */
#define ONLY_INT_FIELDS
/* use ANSI/SYSV style byte manipulation routines instead of BSD ones */
#undef bcopy
......
gcc/config/rs6000/xm-rs6000.h
......@@ -22,11 +22,6 @@ Boston, MA 02111-1307, USA. */
/* This describes the machine the compiler is hosted on. */
#define HOST_WORDS_BIG_ENDIAN
/* If not compiled with GNU C, use only int bitfields. */
#ifndef __GNUC__
#define ONLY_INT_FIELDS
#endif
/* Big buffers improve performance. */
#define IO_BUFFER_SIZE (0x8000 - 4096)
......
gcc/config/rs6000/xm-sysv4.h
......@@ -23,9 +23,3 @@ Boston, MA 02111-1307, USA. */
/* Doubles are stored in memory with the high order word first. This
matters when cross-compiling. */
#define HOST_WORDS_BIG_ENDIAN 1
/* if not compiled with GNU C, use only int bitfields. */
#ifndef __GNUC__
#undef ONLY_INT_FIELDS
#define ONLY_INT_FIELDS
#endif
gcc/config/sparc/xm-sysv4.h deleted 100644 → 0
/* Configuration for GNU C-compiler for Sun Sparc running System V.4.
Copyright (C) 1992, 1993, 1998, 2001 Free Software Foundation, Inc.
Contributed by Ron Guilmette (rfg@netcom.com).
This file is part of GNU CC.
GNU CC 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 version.
GNU CC 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 GNU CC; see the file COPYING. If not, write to
the Free Software Foundation, 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
/* This describes the machine the compiler is hosted on. */
/* Doubles are stored in memory with the high order word first. This
matters when cross-compiling. */
#define HOST_WORDS_BIG_ENDIAN 1
#ifndef __GNUC__
#define ONLY_INT_FIELDS
#endif
gcc/config/xm-interix.h
......@@ -21,12 +21,6 @@ along with GNU CC; see the file COPYING. If not, write to
the Free Software Foundation, 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#ifndef ONLY_INT_FIELDS
#ifndef __GNUC__
#define ONLY_INT_FIELDS 1
#endif
#endif
/* Our strategy for finding global constructors is a bit different, although
not a lot. */
#define DO_GLOBAL_CTORS_BODY \
......
gcc/configure.in
......@@ -521,25 +521,8 @@ if test $gcc_cv_header_inttypes_h = yes; then
[Define if you have a working <inttypes.h> header file.])
fi
#
# Determine if enumerated bitfields are unsigned. ISO C says they can
# be either signed or unsigned.
#
AC_CACHE_CHECK(for unsigned enumerated bitfields, gcc_cv_enum_bf_unsigned,
[AC_TRY_RUN(#include <stdlib.h>
enum t { BLAH = 128 } ;
struct s_t { enum t member : 8; } s ;
int main(void)
{
s.member = BLAH;
if (s.member < 0) exit(1);
exit(0);
}, gcc_cv_enum_bf_unsigned=yes, gcc_cv_enum_bf_unsigned=no, gcc_cv_enum_bf_unsigned=yes)])
if test $gcc_cv_enum_bf_unsigned = yes; then
AC_DEFINE(ENUM_BITFIELDS_ARE_UNSIGNED, 1,
[Define if enumerated bitfields are treated as unsigned values.])
fi
dnl Disabled until we have a complete test for buggy enum bitfields.
dnl gcc_AC_C_ENUM_BF_UNSIGNED
AC_CHECK_FUNCS(strtoul bsearch putenv popen bcopy \
strchr strrchr kill getrlimit setrlimit atoll atoq \
......
gcc/system.h
......@@ -507,14 +507,6 @@ extern void abort PARAMS ((void));
/* Get libiberty declarations. */
#include "libiberty.h"
/* Make sure that ONLY_INT_FIELDS has an integral value. */
#ifdef ONLY_INT_FIELDS
#undef ONLY_INT_FIELDS
#define ONLY_INT_FIELDS 1
#else
#define ONLY_INT_FIELDS 0
#endif
/* Provide a default for the HOST_BIT_BUCKET.
This suffices for POSIX-like hosts. */
......@@ -522,12 +514,10 @@ extern void abort PARAMS ((void));
#define HOST_BIT_BUCKET "/dev/null"
#endif
/* Enumerated bitfields are safe to use unless we've been explictly told
otherwise or if they are signed. */
#define USE_ENUM_BITFIELDS (__GNUC__ || (!ONLY_INT_FIELDS && ENUM_BITFIELDS_ARE_UNSIGNED))
/* Be conservative and only use enum bitfields with GCC.
FIXME: provide a complete autoconf test for buggy enum bitfields. */
#if USE_ENUM_BITFIELDS
#if (GCC_VERSION > 2000)
#define ENUM_BITFIELD(TYPE) enum TYPE
#else
#define ENUM_BITFIELD(TYPE) unsigned int
......
gcc/varasm.c
......@@ -2201,15 +2201,11 @@ decode_addr_const (exp, value)
value->offset = offset;
}
enum kind { RTX_DOUBLE, RTX_INT };
struct rtx_const
{
#ifdef ONLY_INT_FIELDS
unsigned int kind : 16;
unsigned int mode : 16;
#else
enum kind kind : 16;
enum machine_mode mode : 16;
#endif
ENUM_BITFIELD(kind) kind : 16;
ENUM_BITFIELD(machine_mode) mode : 16;
union {
union real_extract du;
struct addr_const addr;
......@@ -3344,7 +3340,6 @@ free_varasm_status (f)
f->varasm = NULL;
}
enum kind { RTX_DOUBLE, RTX_INT };
/* Express an rtx for a constant integer (perhaps symbolic)
as the sum of a symbol or label plus an explicit integer.
......
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