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config.host (i[34567]-*-*, x86_64-*-*): Add t-crtfm instead of i386/t-crtfm to tmake_file.

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* config.host (i[34567]-*-*, x86_64-*-*): Add t-crtfm instead of
	i386/t-crtfm to tmake_file.
	* config/i386/crtfastmath.c (set_fast_math_sse): New function.
	(set_fast_math): Use set_fast_math_sse for SSE targets.
	* config/i386/t-crtfm: Remove.

From-SVN: r223578
This commit is contained in:
Uros Bizjak 2015-05-22 16:39:22 +02:00 committed by Uros Bizjak
parent b6ec6215e3
commit 9b789cc15c
4 changed files with 65 additions and 58 deletions
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8
libgcc/ChangeLog
View File

@ -1,3 +1,11 @@
2015-05-22 Uros Bizjak <ubizjak@gmail.com>
* config.host (i[34567]-*-*, x86_64-*-*): Add t-crtfm instead of
i386/t-crtfm to tmake_file.
* config/i386/crtfastmath.c (set_fast_math_sse): New function.
(set_fast_math): Use set_fast_math_sse for SSE targets.
* config/i386/t-crtfm: Remove.
2015-05-21 Alan Modra <amodra@gmail.com>
PR libgcc/66225

22
libgcc/config.host
View File

@ -553,12 +553,12 @@ hppa*-*-openbsd*)
tmake_file="$tmake_file pa/t-openbsd"
;;
i[34567]86-*-darwin*)
tmake_file="$tmake_file i386/t-crtpc i386/t-crtfm"
tmake_file="$tmake_file i386/t-crtpc t-crtfm"
tm_file="$tm_file i386/darwin-lib.h"
extra_parts="$extra_parts crtprec32.o crtprec64.o crtprec80.o crtfastmath.o"
;;
x86_64-*-darwin*)
tmake_file="$tmake_file i386/t-crtpc i386/t-crtfm"
tmake_file="$tmake_file i386/t-crtpc t-crtfm"
tm_file="$tm_file i386/darwin-lib.h"
extra_parts="$extra_parts crtprec32.o crtprec64.o crtprec80.o crtfastmath.o"
;;
@ -595,24 +595,24 @@ x86_64-*-openbsd*)
;;
i[34567]86-*-linux*)
extra_parts="$extra_parts crtprec32.o crtprec64.o crtprec80.o crtfastmath.o"
tmake_file="${tmake_file} i386/t-crtpc i386/t-crtfm i386/t-crtstuff t-dfprules"
tmake_file="${tmake_file} i386/t-crtpc t-crtfm i386/t-crtstuff t-dfprules"
tm_file="${tm_file} i386/elf-lib.h"
md_unwind_header=i386/linux-unwind.h
;;
i[34567]86-*-kfreebsd*-gnu | i[34567]86-*-knetbsd*-gnu | i[34567]86-*-gnu* | i[34567]86-*-kopensolaris*-gnu)
extra_parts="$extra_parts crtprec32.o crtprec64.o crtprec80.o crtfastmath.o"
tmake_file="${tmake_file} i386/t-crtpc i386/t-crtfm i386/t-crtstuff t-dfprules"
tmake_file="${tmake_file} i386/t-crtpc t-crtfm i386/t-crtstuff t-dfprules"
tm_file="${tm_file} i386/elf-lib.h"
;;
x86_64-*-linux*)
extra_parts="$extra_parts crtprec32.o crtprec64.o crtprec80.o crtfastmath.o"
tmake_file="${tmake_file} i386/t-crtpc i386/t-crtfm i386/t-crtstuff t-dfprules"
tmake_file="${tmake_file} i386/t-crtpc t-crtfm i386/t-crtstuff t-dfprules"
tm_file="${tm_file} i386/elf-lib.h"
md_unwind_header=i386/linux-unwind.h
;;
x86_64-*-kfreebsd*-gnu | x86_64-*-knetbsd*-gnu)
extra_parts="$extra_parts crtprec32.o crtprec64.o crtprec80.o crtfastmath.o"
tmake_file="${tmake_file} i386/t-crtpc i386/t-crtfm i386/t-crtstuff t-dfprules"
tmake_file="${tmake_file} i386/t-crtpc t-crtfm i386/t-crtstuff t-dfprules"
tm_file="${tm_file} i386/elf-lib.h"
;;
i[34567]86-pc-msdosdjgpp*)
@ -628,7 +628,7 @@ i[34567]86-*-rtems*)
extra_parts="$extra_parts crti.o crtn.o"
;;
i[34567]86-*-solaris2* | x86_64-*-solaris2.1[0-9]*)
tmake_file="$tmake_file i386/t-crtpc i386/t-crtfm"
tmake_file="$tmake_file i386/t-crtpc t-crtfm"
extra_parts="$extra_parts crtprec32.o crtprec64.o crtprec80.o crtfastmath.o"
tm_file="${tm_file} i386/elf-lib.h"
md_unwind_header=i386/sol2-unwind.h
@ -652,7 +652,7 @@ i[34567]86-*-cygwin*)
else
tmake_dlldir_file="i386/t-dlldir-x"
fi
tmake_file="${tmake_file} ${tmake_eh_file} ${tmake_dlldir_file} i386/t-slibgcc-cygming i386/t-cygming i386/t-cygwin i386/t-crtfm i386/t-chkstk t-dfprules"
tmake_file="${tmake_file} ${tmake_eh_file} ${tmake_dlldir_file} i386/t-slibgcc-cygming i386/t-cygming i386/t-cygwin t-crtfm i386/t-chkstk t-dfprules"
;;
x86_64-*-cygwin*)
extra_parts="crtbegin.o crtbeginS.o crtend.o crtfastmath.o"
@ -672,7 +672,7 @@ x86_64-*-cygwin*)
tmake_dlldir_file="i386/t-dlldir-x"
fi
# FIXME - dj - t-chkstk used to be in here, need a 64-bit version of that
tmake_file="${tmake_file} ${tmake_eh_file} ${tmake_dlldir_file} i386/t-slibgcc-cygming i386/t-cygming i386/t-cygwin i386/t-crtfm t-dfprules i386/t-chkstk"
tmake_file="${tmake_file} ${tmake_eh_file} ${tmake_dlldir_file} i386/t-slibgcc-cygming i386/t-cygming i386/t-cygwin t-crtfm t-dfprules i386/t-chkstk"
;;
i[34567]86-*-mingw*)
extra_parts="crtbegin.o crtend.o crtfastmath.o"
@ -700,7 +700,7 @@ i[34567]86-*-mingw*)
else
tmake_dlldir_file="i386/t-dlldir-x"
fi
tmake_file="${tmake_file} ${tmake_eh_file} ${tmake_dlldir_file} i386/t-slibgcc-cygming i386/t-cygming i386/t-mingw32 i386/t-crtfm i386/t-chkstk t-dfprules"
tmake_file="${tmake_file} ${tmake_eh_file} ${tmake_dlldir_file} i386/t-slibgcc-cygming i386/t-cygming i386/t-mingw32 t-crtfm i386/t-chkstk t-dfprules"
;;
x86_64-*-mingw*)
case ${target_thread_file} in
@ -723,7 +723,7 @@ x86_64-*-mingw*)
else
tmake_dlldir_file="i386/t-dlldir-x"
fi
tmake_file="${tmake_file} ${tmake_eh_file} ${tmake_dlldir_file} i386/t-slibgcc-cygming i386/t-cygming i386/t-mingw32 t-dfprules i386/t-crtfm i386/t-chkstk"
tmake_file="${tmake_file} ${tmake_eh_file} ${tmake_dlldir_file} i386/t-slibgcc-cygming i386/t-cygming i386/t-mingw32 t-dfprules t-crtfm i386/t-chkstk"
extra_parts="$extra_parts crtbegin.o crtend.o crtfastmath.o"
if test x$enable_vtable_verify = xyes; then
extra_parts="$extra_parts vtv_start.o vtv_end.o vtv_start_preinit.o vtv_end_preinit.o"

89
libgcc/config/i386/crtfastmath.c
View File

@ -29,15 +29,57 @@
/* All 64-bit targets have SSE and DAZ;
only check them explicitly for 32-bit ones. */
#include "cpuid.h"
#endif
static void __attribute__((constructor))
#ifndef __x86_64__
__attribute__ ((target("fxsr,sse")))
static void
/* The i386 ABI only requires 4-byte stack alignment, so this is necessary
to make sure the fxsave struct gets correct alignment.
See PR27537 and PR28621. */
__attribute__ ((force_align_arg_pointer))
set_fast_math_sse (unsigned int edx)
{
unsigned int mxcsr;
if (edx & bit_FXSAVE)
{
/* Check if DAZ is available. */
struct
{
unsigned short cwd;
unsigned short swd;
unsigned short twd;
unsigned short fop;
unsigned int fip;
unsigned int fcs;
unsigned int foo;
unsigned int fos;
unsigned int mxcsr;
unsigned int mxcsr_mask;
unsigned int st_space[32];
unsigned int xmm_space[32];
unsigned int padding[56];
} __attribute__ ((aligned (16))) fxsave;
/* This is necessary since some implementations of FXSAVE
do not modify reserved areas within the image. */
fxsave.mxcsr_mask = 0;
__builtin_ia32_fxsave (&fxsave);
mxcsr = fxsave.mxcsr;
if (fxsave.mxcsr_mask & MXCSR_DAZ)
mxcsr |= MXCSR_DAZ;
}
else
mxcsr = __builtin_ia32_stmxcsr ();
mxcsr |= MXCSR_FTZ;
__builtin_ia32_ldmxcsr (mxcsr);
}
#endif
static void __attribute__((constructor))
set_fast_math (void)
{
#ifndef __x86_64__
@ -47,46 +89,7 @@ set_fast_math (void)
return;
if (edx & bit_SSE)
{
unsigned int mxcsr;
if (edx & bit_FXSAVE)
{
/* Check if DAZ is available. */
struct
{
unsigned short cwd;
unsigned short swd;
unsigned short twd;
unsigned short fop;
unsigned int fip;
unsigned int fcs;
unsigned int foo;
unsigned int fos;
unsigned int mxcsr;
unsigned int mxcsr_mask;
unsigned int st_space[32];
unsigned int xmm_space[32];
unsigned int padding[56];
} __attribute__ ((aligned (16))) fxsave;
/* This is necessary since some implementations of FXSAVE
do not modify reserved areas within the image. */
fxsave.mxcsr_mask = 0;
__builtin_ia32_fxsave (&fxsave);
mxcsr = fxsave.mxcsr;
if (fxsave.mxcsr_mask & MXCSR_DAZ)
mxcsr |= MXCSR_DAZ;
}
else
mxcsr = __builtin_ia32_stmxcsr ();
mxcsr |= MXCSR_FTZ;
__builtin_ia32_ldmxcsr (mxcsr);
}
set_fast_math_sse (edx);
#else
unsigned int mxcsr = __builtin_ia32_stmxcsr ();
mxcsr |= MXCSR_DAZ | MXCSR_FTZ;

4
libgcc/config/i386/t-crtfm
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@ -1,4 +0,0 @@
# This is an endfile, Use -minline-all-stringops to ensure
# that __builtin_memset doesn't refer to the lib function memset().
crtfastmath.o: $(srcdir)/config/i386/crtfastmath.c
$(gcc_compile) -mfxsr -msse -c $<