git
/
gcc
mirror of git://gcc.gnu.org/git/gcc.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

fpu-387.h: Include cpuid.h. 

* config/fpu-387.h: Include cpuid.h.
	(set_fpu): Use __get_cpuid to check for SSE.

From-SVN: r128234
This commit is contained in:
Uros Bizjak 2007-09-07 11:34:36 +02:00
parent 7ab6a03bf5
commit c664bb1b46
2 changed files with 60 additions and 63 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

62
libgfortran/ChangeLog
View File

@ -1,3 +1,8 @@
2007-09-07 Uros Bizjak <ubizjak@gmail.com>
* config/fpu-387.h: Include cpuid.h.
(set_fpu): Use __get_cpuid to check for SSE.
2007-09-06 Thomas Koenig <tkoenig@gcc.gnu.org> 2007-09-06 Thomas Koenig <tkoenig@gcc.gnu.org>
PR fortran/33298 PR fortran/33298
@ -15,9 +20,9 @@
2007-09-05 Jerry DeLisle <jvdelisle@gcc.gnu.org> 2007-09-05 Jerry DeLisle <jvdelisle@gcc.gnu.org>
PR libfortran/33253 PR libfortran/33253
* io/write.c (nml_write_obj): Set the delimiter correctly before calling * io/write.c (nml_write_obj): Set the delimiter correctly before
write_character. (namelist_write): Clean up the code a little and add calling write_character. (namelist_write): Clean up the code a little
comments to clarify what its doing. and add comments to clarify what its doing.
2007-09-04 Jerry DeLisle <jvdelisle@gcc.gnu.org> 2007-09-04 Jerry DeLisle <jvdelisle@gcc.gnu.org>
@ -29,8 +34,8 @@
(output_float): Delete. (write_float): Delete. (output_float): Delete. (write_float): Delete.
* io/write_float.def (calculate_sign): Added. * io/write_float.def (calculate_sign): Added.
(output_float): Refactored to be independent of kind and added to this (output_float): Refactored to be independent of kind and added to this
file for inclusion. (write_infnan): New function to write "Infinite" or file for inclusion. (write_infnan): New function to write "Infinite"
"NaN" depending on flags passed, independent of kind. or "NaN" depending on flags passed, independent of kind.
(CALCULATE_EXP): New macro to build kind specific functions. Use it. (CALCULATE_EXP): New macro to build kind specific functions. Use it.
(OUTPUT_FLOAT_FMT_G): New macro, likewise. Use it. (OUTPUT_FLOAT_FMT_G): New macro, likewise. Use it.
(DTOA, DTOAL): Macros to implement "decimal to ascii". (DTOA, DTOAL): Macros to implement "decimal to ascii".
@ -41,8 +46,8 @@
2007-09-03 Jerry DeLisle <jvdelisle@gcc.gnu.org> 2007-09-03 Jerry DeLisle <jvdelisle@gcc.gnu.org>
PR libfortran/33253 PR libfortran/33253
* io/list_read.c (read_character): Use DELIM_APOSTROPHE and DELIM_QUOTE * io/list_read.c (read_character): Use DELIM_APOSTROPHE and
in check of first character in string. DELIM_QUOTE in check of first character in string.
2007-09-03 Francois-Xavier Coudert <fxcoudert@gcc.gnu.org> 2007-09-03 Francois-Xavier Coudert <fxcoudert@gcc.gnu.org>
@ -503,8 +508,8 @@
(output_float): Delete. (write_float): Delete. (output_float): Delete. (write_float): Delete.
* io/write_float.def (calculate_sign): Added. * io/write_float.def (calculate_sign): Added.
(output_float): Refactored to be independent of kind and added to this (output_float): Refactored to be independent of kind and added to this
file for inclusion. (write_infnan): New function to write "Infinite" or file for inclusion. (write_infnan): New function to write "Infinite"
"NaN" depending on flags passed, independent of kind. or "NaN" depending on flags passed, independent of kind.
(CALCULATE_EXP): New macro to build kind specific functions. Use it. (CALCULATE_EXP): New macro to build kind specific functions. Use it.
(OUTPUT_FLOAT_FMT_G): New macro, likewise. Use it. (OUTPUT_FLOAT_FMT_G): New macro, likewise. Use it.
(DTOA, DTOAL): Macros to implement "decimal to ascii". (DTOA, DTOAL): Macros to implement "decimal to ascii".
@ -934,7 +939,8 @@
2007-07-14 Jerry DeLisle <jvdelisle@gcc.gnu.org> 2007-07-14 Jerry DeLisle <jvdelisle@gcc.gnu.org>
PR libgfortran/32752 PR libgfortran/32752
* io/unix.c (unix_stream): Move buffer pointer adjacent to small_buffer. * io/unix.c (unix_stream): Move buffer pointer adjacent to
small_buffer.
* io/transfer.c (formatted_transfer_scalar): If stream I/O, set * io/transfer.c (formatted_transfer_scalar): If stream I/O, set
bytes_used to zero. Fix off by one error in calculation of pos and bytes_used to zero. Fix off by one error in calculation of pos and
skips. Eliminate duplicate pending_spaces check. skips. Eliminate duplicate pending_spaces check.
@ -950,8 +956,8 @@
PR libgfortran/32702 PR libgfortran/32702
* io/unix.c (unix_stream): Restore buffer pointer and small_buffer. * io/unix.c (unix_stream): Restore buffer pointer and small_buffer.
(fd_alloc): If the number of bytes needed is greater than the default (fd_alloc): If the number of bytes needed is greater than the default
BUFFER_SIZE, allocate a new buffer large enough. Free the old buffer if BUFFER_SIZE, allocate a new buffer large enough. Free the old buffer
necessary. (fd_sfree): Restore use of buffer pointer. if necessary. (fd_sfree): Restore use of buffer pointer.
(fd_close): Likewise. (fd_open): Likewise. (fd_close): Likewise. (fd_open): Likewise.
(init_error_stream): Likewise. (init_error_stream): Likewise.
@ -973,8 +979,8 @@
2007-07-08 Jerry DeLisle <jvdelisle@gcc.gnu.org> 2007-07-08 Jerry DeLisle <jvdelisle@gcc.gnu.org>
PR libgfortran/32678 PR libgfortran/32678
* io/transfer.c (formatted_transfer_scalar): Don't allow pending_spaces * io/transfer.c (formatted_transfer_scalar): Don't allow
to go negative. pending_spaces to go negative.
2007-07-08 Thomas Koenig <tkoenig@gcc.gnu.org> 2007-07-08 Thomas Koenig <tkoenig@gcc.gnu.org>
@ -1149,8 +1155,9 @@
2007-05-25 Jerry DeLisle <jvdelisle@gcc.gnu.org> 2007-05-25 Jerry DeLisle <jvdelisle@gcc.gnu.org>
* io/transfer.c (unformatted_read): Use size from front end eliminating * io/transfer.c (unformatted_read): Use size from front end
use of size_from_real_kind. (unformatted_write): Ditto. eliminating use of size_from_real_kind.
(unformatted_write): Ditto.
2007-05-23 Steve Ellcey <sje@cup.hp.com> 2007-05-23 Steve Ellcey <sje@cup.hp.com>
@ -1227,8 +1234,8 @@
_gfortran_runtime_error_at. _gfortran_runtime_error_at.
* libgfortran.h: Add comment to reference error codes in front end. * libgfortran.h: Add comment to reference error codes in front end.
(library_start): Locate prototype with library_end macro and add (library_start): Locate prototype with library_end macro and add
a new comment. Add prototype for runtime_error_at. Export prototype for a new comment. Add prototype for runtime_error_at. Export prototype
generate_error. for generate_error.
* io/lock.c (library_start): Fix check for error condition. * io/lock.c (library_start): Fix check for error condition.
* io/transfer.c (data_transfer_init): Add library check. * io/transfer.c (data_transfer_init): Add library check.
@ -1569,15 +1576,16 @@
2007-03-27 Jerry DeLisle <jvdelisle@gcc.gnu.org> 2007-03-27 Jerry DeLisle <jvdelisle@gcc.gnu.org>
PR libfortran/31052 PR libfortran/31052
* io/transfer.c (next_record_r): Do not call test_endfile if in namelist * io/transfer.c (next_record_r): Do not call test_endfile if in
mode. namelist mode.
2007-03-25 Jerry DeLisle <jvdelisle@gcc.gnu.org> 2007-03-25 Jerry DeLisle <jvdelisle@gcc.gnu.org>
PR libfortran/31199 PR libfortran/31199
* io/io.h: Add saved_pos to gfc_unit structure. * io/io.h: Add saved_pos to gfc_unit structure.
* io/open.c (new_unit): Initialize saved_pos. * io/open.c (new_unit): Initialize saved_pos.
* io/transfer.c (data_transfer_init): Set max_pos to value in saved_pos. * io/transfer.c (data_transfer_init): Set max_pos to value in
saved_pos.
(next_record_w): Fix whitespace. (next_record_w): Fix whitespace.
(finalze_transfer): Calculate max_pos for ADVANCE="no" and save it for (finalze_transfer): Calculate max_pos for ADVANCE="no" and save it for
later use. If not ADVANCE="no" set saved_pos to zero. later use. If not ADVANCE="no" set saved_pos to zero.
@ -1592,8 +1600,8 @@
PR libfortran/31052 PR libfortran/31052
* file_pos.c: Update Copyright year. * file_pos.c: Update Copyright year.
* io/open.c (test_endfile): Restore test_endfile to fix SPEC regression. * io/open.c (test_endfile): Restore test_endfile to fix SPEC
Update Copyright year. regression. Update Copyright year.
* io/io.h: Same. * io/io.h: Same.
* io/unix.c (is_special): Add missing type for this function. * io/unix.c (is_special): Add missing type for this function.
Update Copyright year. Update Copyright year.
@ -1649,8 +1657,8 @@
2007-03-14 Jerry DeLisle <jvdelisle@gcc.gnu.org> 2007-03-14 Jerry DeLisle <jvdelisle@gcc.gnu.org>
PR libfortran/31051 PR libfortran/31051
* io/transfer.c (formatted_transfer_scalar): Adjust position for pending * io/transfer.c (formatted_transfer_scalar): Adjust position for
spaces when in writing mode. Clean up some formatting. pending spaces when in writing mode. Clean up some formatting.
2007-03-14 Thomas Koenig <Thomas.Koenig@online.de> 2007-03-14 Thomas Koenig <Thomas.Koenig@online.de>
@ -2126,8 +2134,8 @@
s->file_length == -1. s->file_length == -1.
(fd_alloc_w_at): Do not adjust file_length if file is not seekable. (fd_alloc_w_at): Do not adjust file_length if file is not seekable.
(fd_seek): If not seekable, just return success. (fd_seek): If not seekable, just return success.
(fd_truncate): If not seekable, no need to truncate. Return failure if (fd_truncate): If not seekable, no need to truncate. Return failure
seek fails and the stream is not a pipe. if seek fails and the stream is not a pipe.
(fd_to_stream): Make test for non-seekable file more robust. (fd_to_stream): Make test for non-seekable file more robust.
2007-01-01 Steven G. Kargl <kargls@comcast.net> 2007-01-01 Steven G. Kargl <kargls@comcast.net>

59
libgfortran/config/fpu-387.h
View File

@ -28,79 +28,68 @@ License along with libgfortran; see the file COPYING. If not,
write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA. */ Boston, MA 02110-1301, USA. */
#define SSE (1 << 25) #ifndef __x86_64__
#include "cpuid.h"
#endif
static int static int
has_sse (void) has_sse (void)
{ {
#ifdef __x86_64__ #ifndef __x86_64__
return 1;
#else
unsigned int eax, ebx, ecx, edx; unsigned int eax, ebx, ecx, edx;
/* See if we can use cpuid. */ if (!__get_cpuid (1, &eax, &ebx, &ecx, &edx))
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 0; return 0;
/* Check the highest input value for eax. */ return edx & bit_SSE;
asm volatile ("xchgl %%ebx, %1; cpuid; xchgl %%ebx, %1" #else
: "=a" (eax), "=r" (ebx), "=c" (ecx), "=d" (edx)
: "0" (0));
if (eax == 0)
return 0;
asm volatile ("xchgl %%ebx, %1; cpuid; xchgl %%ebx, %1"
: "=a" (eax), "=r" (ebx), "=c" (ecx), "=d" (edx)
: "0" (1));
if (edx & SSE)
return 1; return 1;
return 0;
#endif #endif
} }
void set_fpu (void) /* i387 -- see linux <fpu_control.h> header file for details. */
{
unsigned short cw;
unsigned int cw_sse;
/* i387 -- see linux <fpu_control.h> header file for details. */
#define _FPU_MASK_IM 0x01 #define _FPU_MASK_IM 0x01
#define _FPU_MASK_DM 0x02 #define _FPU_MASK_DM 0x02
#define _FPU_MASK_ZM 0x04 #define _FPU_MASK_ZM 0x04
#define _FPU_MASK_OM 0x08 #define _FPU_MASK_OM 0x08
#define _FPU_MASK_UM 0x10 #define _FPU_MASK_UM 0x10
#define _FPU_MASK_PM 0x20 #define _FPU_MASK_PM 0x20
void set_fpu (void)
{
unsigned short cw;
asm volatile ("fnstcw %0" : "=m" (cw)); asm volatile ("fnstcw %0" : "=m" (cw));
cw |= _FPU_MASK_IM | _FPU_MASK_DM | _FPU_MASK_ZM | _FPU_MASK_OM | _FPU_MASK_UM | _FPU_MASK_PM;
cw |= (_FPU_MASK_IM | _FPU_MASK_DM | _FPU_MASK_ZM | _FPU_MASK_OM
| _FPU_MASK_UM | _FPU_MASK_PM);
if (options.fpe & GFC_FPE_INVALID) cw &= ~_FPU_MASK_IM; if (options.fpe & GFC_FPE_INVALID) cw &= ~_FPU_MASK_IM;
if (options.fpe & GFC_FPE_DENORMAL) cw &= ~_FPU_MASK_DM; if (options.fpe & GFC_FPE_DENORMAL) cw &= ~_FPU_MASK_DM;
if (options.fpe & GFC_FPE_ZERO) cw &= ~_FPU_MASK_ZM; if (options.fpe & GFC_FPE_ZERO) cw &= ~_FPU_MASK_ZM;
if (options.fpe & GFC_FPE_OVERFLOW) cw &= ~_FPU_MASK_OM; if (options.fpe & GFC_FPE_OVERFLOW) cw &= ~_FPU_MASK_OM;
if (options.fpe & GFC_FPE_UNDERFLOW) cw &= ~_FPU_MASK_UM; if (options.fpe & GFC_FPE_UNDERFLOW) cw &= ~_FPU_MASK_UM;
if (options.fpe & GFC_FPE_PRECISION) cw &= ~_FPU_MASK_PM; if (options.fpe & GFC_FPE_PRECISION) cw &= ~_FPU_MASK_PM;
asm volatile ("fldcw %0" : : "m" (cw)); asm volatile ("fldcw %0" : : "m" (cw));
if (has_sse()) if (has_sse())
{ {
/* SSE */ unsigned int cw_sse;
asm volatile ("stmxcsr %0" : "=m" (cw_sse)); asm volatile ("stmxcsr %0" : "=m" (cw_sse));
cw_sse &= 0xFFFF0000;
cw_sse &= 0xffff0000;
cw_sse |= (_FPU_MASK_IM | _FPU_MASK_DM | _FPU_MASK_ZM | _FPU_MASK_OM cw_sse |= (_FPU_MASK_IM | _FPU_MASK_DM | _FPU_MASK_ZM | _FPU_MASK_OM
| _FPU_MASK_UM | _FPU_MASK_PM ) << 7; | _FPU_MASK_UM | _FPU_MASK_PM ) << 7;
if (options.fpe & GFC_FPE_INVALID) cw_sse &= ~(_FPU_MASK_IM << 7); if (options.fpe & GFC_FPE_INVALID) cw_sse &= ~(_FPU_MASK_IM << 7);
if (options.fpe & GFC_FPE_DENORMAL) cw_sse &= ~(_FPU_MASK_DM << 7); if (options.fpe & GFC_FPE_DENORMAL) cw_sse &= ~(_FPU_MASK_DM << 7);
if (options.fpe & GFC_FPE_ZERO) cw_sse &= ~(_FPU_MASK_ZM << 7); if (options.fpe & GFC_FPE_ZERO) cw_sse &= ~(_FPU_MASK_ZM << 7);
if (options.fpe & GFC_FPE_OVERFLOW) cw_sse &= ~(_FPU_MASK_OM << 7); if (options.fpe & GFC_FPE_OVERFLOW) cw_sse &= ~(_FPU_MASK_OM << 7);
if (options.fpe & GFC_FPE_UNDERFLOW) cw_sse &= ~(_FPU_MASK_UM << 7); if (options.fpe & GFC_FPE_UNDERFLOW) cw_sse &= ~(_FPU_MASK_UM << 7);
if (options.fpe & GFC_FPE_PRECISION) cw_sse &= ~(_FPU_MASK_PM << 7); if (options.fpe & GFC_FPE_PRECISION) cw_sse &= ~(_FPU_MASK_PM << 7);
asm volatile ("ldmxcsr %0" : : "m" (cw_sse)); asm volatile ("ldmxcsr %0" : : "m" (cw_sse));
} }
} }