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riscv-gcc-1
Commit d75e02d6 by H.J. Lu Committed by H.J. Lu
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config.gcc (i[34567]86-*-linux*): Add i386/t-crtfm to tm-file. 

2005-08-10  H.J. Lu  <hongjiu.lu@intel.com>

	* config.gcc (i[34567]86-*-linux*): Add i386/t-crtfm to tm-file.
	(x86_64-*-linux*): Likewise.

	* config/i386/crtfastmath.c: New file.
	* config/i386/t-crtfm: Likewise.

	* config/i386/linux.h (ENDFILE_SPEC): New.
	* config/i386/linux64.h (ENDFILE_SPEC): Likewise.

	* config/i386/t-linux64 (EXTRA_MULTILIB_PARTS): Add
	crtfastmath.o.

From-SVN: r102954
parent 863c5508
Showing with 108 additions and 3 deletions
gcc/ChangeLog
2005-08-10 H.J. Lu <hongjiu.lu@intel.com>
* config.gcc (i[34567]86-*-linux*): Add i386/t-crtfm to tm-file.
(x86_64-*-linux*): Likewise.
* config/i386/crtfastmath.c: New file.
* config/i386/t-crtfm: Likewise.
* config/i386/linux.h (ENDFILE_SPEC): New.
* config/i386/linux64.h (ENDFILE_SPEC): Likewise.
* config/i386/t-linux64 (EXTRA_MULTILIB_PARTS): Add
crtfastmath.o.
2005-08-10 Dorit Nuzman <dorit@il.ibm.com>
* doc/md.texi: (reduc_smin, reduc_umin, reduc_splus, reduc_uplus):
......
gcc/config.gcc
......@@ -1019,7 +1019,7 @@ i[34567]86-*-linux* | i[34567]86-*-kfreebsd*-gnu | i[34567]86-*-knetbsd*-gnu)
i[34567]86-*-knetbsd*-gnu) tm_file="${tm_file} knetbsd-gnu.h i386/knetbsd-gnu.h" ;;
i[34567]86-*-kfreebsd*-gnu) tm_file="${tm_file} kfreebsd-gnu.h i386/kfreebsd-gnu.h" ;;
esac
tmake_file="${tmake_file} i386/t-crtstuff"
tmake_file="${tmake_file} i386/t-crtstuff i386/t-crtfm"
;;
x86_64-*-linux* | x86_64-*-kfreebsd*-gnu | x86_64-*-knetbsd*-gnu)
tm_file="${tm_file} i386/unix.h i386/att.h dbxelf.h elfos.h svr4.h linux.h \
......@@ -1028,7 +1028,7 @@ x86_64-*-linux* | x86_64-*-kfreebsd*-gnu | x86_64-*-knetbsd*-gnu)
x86_64-*-kfreebsd*-gnu) tm_file="${tm_file} kfreebsd-gnu.h" ;;
x86_64-*-knetbsd*-gnu) tm_file="${tm_file} knetbsd-gnu.h" ;;
esac
tmake_file="${tmake_file} i386/t-linux64"
tmake_file="${tmake_file} i386/t-linux64 i386/t-crtfm"
;;
i[34567]86-*-gnu*)
;;
......
gcc/config/i386/crtfastmath.c 0 → 100644
/*
* Copyright (C) 2005 Free Software Foundation, Inc.
*
* This file 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.
*
* In addition to the permissions in the GNU General Public License, the
* Free Software Foundation gives you unlimited permission to link the
* compiled version of this file with other programs, and to distribute
* those programs without any restriction coming from the use of this
* file. (The General Public License restrictions do apply in other
* respects; for example, they cover modification of the file, and
* distribution when not linked into another program.)
*
* This file 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; see the file COPYING. If not, write to
* the Free Software Foundation, 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*
* As a special exception, if you link this library with files
* compiled with GCC to produce an executable, this does not cause
* the resulting executable to be covered by the GNU General Public License.
* This exception does not however invalidate any other reasons why
* the executable file might be covered by the GNU General Public License.
*/
#define MXCSR_DAZ (1 << 6) /* Enable denormals are zero mode */
#define MXCSR_FTZ (1 << 15) /* Enable flush to zero mode */
static void __attribute__((constructor))
set_fast_math (void)
{
#ifndef __x86_64__
/* SSE is the part of 64bit. Only need to check it for 32bit. */
unsigned int eax, ebx, ecx, edx;
/* See if we can use cpuid. */
asm volatile ("pushfl; pushfl; popl %0; movl %0,%1; xorl %2,%0;"
"pushl %0; popfl; pushfl; popl %0; popfl"
: "=&r" (eax), "=&r" (ebx)
: "i" (0x00200000));
if (((eax ^ ebx) & 0x00200000) == 0)
return;
/* Check the highest input value for eax. */
asm volatile ("xchgl %%ebx, %1; cpuid; xchgl %%ebx, %1"
: "=a" (eax), "=r" (ebx), "=c" (ecx), "=d" (edx)
: "0" (0));
if (eax == 0)
return;
asm volatile ("xchgl %%ebx, %1; cpuid; xchgl %%ebx, %1"
: "=a" (eax), "=r" (ebx), "=c" (ecx), "=d" (edx)
: "0" (1));
if (edx & (1 << 25))
#endif
{
unsigned int mxcsr = __builtin_ia32_stmxcsr ();
mxcsr |= MXCSR_DAZ | MXCSR_FTZ;
__builtin_ia32_ldmxcsr (mxcsr);
}
}
gcc/config/i386/linux.h
......@@ -121,6 +121,12 @@ Boston, MA 02110-1301, USA. */
%{!dynamic-linker:-dynamic-linker %(dynamic_linker)}} \
%{static:-static}}}"
/* Similar to standard Linux, but adding -ffast-math support. */
#undef ENDFILE_SPEC
#define ENDFILE_SPEC \
"%{ffast-math|funsafe-math-optimizations:crtfastmath.o%s} \
%{shared|pie:crtendS.o%s;:crtend.o%s} crtn.o%s"
/* A C statement (sans semicolon) to output to the stdio stream
FILE the assembler definition of uninitialized global DECL named
NAME whose size is SIZE bytes and alignment is ALIGN bytes.
......
gcc/config/i386/linux64.h
......@@ -64,6 +64,12 @@ Boston, MA 02110-1301, USA. */
%{!m32:%{!dynamic-linker:-dynamic-linker /lib64/ld-linux-x86-64.so.2}}} \
%{static:-static}}"
/* Similar to standard Linux, but adding -ffast-math support. */
#undef ENDFILE_SPEC
#define ENDFILE_SPEC \
"%{ffast-math|funsafe-math-optimizations:crtfastmath.o%s} \
%{shared|pie:crtendS.o%s;:crtend.o%s} crtn.o%s"
#define MULTILIB_DEFAULTS { "m64" }
#undef NEED_INDICATE_EXEC_STACK
......
gcc/config/i386/t-crtfm 0 → 100644
EXTRA_PARTS += crtfastmath.o
$(T)crtfastmath.o: $(srcdir)/config/i386/crtfastmath.c $(GCC_PASSES)
$(GCC_FOR_TARGET) $(LIBGCC2_CFLAGS) -msse -c \
$(srcdir)/config/i386/crtfastmath.c \
-o $(T)crtfastmath$(objext)
gcc/config/i386/t-linux64
......@@ -11,7 +11,8 @@ MULTILIB_OSDIRNAMES = ../lib64 ../lib
LIBGCC = stmp-multilib
INSTALL_LIBGCC = install-multilib
EXTRA_MULTILIB_PARTS=crtbegin.o crtend.o crtbeginS.o crtendS.o crtbeginT.o
EXTRA_MULTILIB_PARTS=crtbegin.o crtend.o crtbeginS.o crtendS.o \
crtbeginT.o crtfastmath.o
# The pushl in CTOR initialization interferes with frame pointer elimination.
# crtend*.o cannot be compiled without -fno-asynchronous-unwind-tables,
......
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