diff options
| author | Ulrich Drepper <drepper@redhat.com> | 2003-09-17 08:47:44 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2003-09-17 08:47:44 +0000 |
| commit | a4db3439f1177cf5c5ceb80bfa3f3a2cef00fc0e (patch) | |
| tree | e21a8cd5a2222281888d37b530d360e92995abd7 /sysdeps/i386/i686 | |
| parent | 6c052003bda07641309dcd4fe4a5158d24f5d607 (diff) | |
Update.
2003-09-15 Jakub Jelinek <jakub@redhat.com>
* sysdeps/i386/Makefile (sysdep-CFLAGS): If not in math or csu
subdir, add -mpreferred-stack-boundary=4, with few exceptions.
2003-09-17 Jakub Jelinek <jakub@redhat.com>
* Makeconfig (stack-align-test-flags): Set.
* stdlib/Makefile (CFLAGS-tst-bsearch.c): Add
$(stack-align-test-flags).
* stdlib/tst-bsearch.c: Include tst-stack-align.h.
(align_check): New var.
(comp): Use TEST_STACK_ALIGN macro.
(do_test): Fail if align_check != 1.
* sysdeps/generic/tst-stack-align.h: New file.
* sysdeps/i386/i686/Makefile (stack-align-test-flags): Add -msse.
* sysdeps/i386/i686/tst-stack-align.h: New file.
Diffstat (limited to 'sysdeps/i386/i686')
| -rw-r--r-- | sysdeps/i386/i686/Makefile | 3 | ||||
| -rw-r--r-- | sysdeps/i386/i686/tst-stack-align.h | 45 |
2 files changed, 48 insertions, 0 deletions
diff --git a/sysdeps/i386/i686/Makefile b/sysdeps/i386/i686/Makefile index b85167fe4d..e9ac505e78 100644 --- a/sysdeps/i386/i686/Makefile +++ b/sysdeps/i386/i686/Makefile @@ -2,3 +2,6 @@ ifeq ($(subdir),csu) sysdep_routines += hp-timing static-only-routines += hp-timing endif + +# So that we can test __m128's alignment +stack-align-test-flags += -msse -mpreferred-stack-boundary=4 diff --git a/sysdeps/i386/i686/tst-stack-align.h b/sysdeps/i386/i686/tst-stack-align.h new file mode 100644 index 0000000000..e1894c65ec --- /dev/null +++ b/sysdeps/i386/i686/tst-stack-align.h @@ -0,0 +1,45 @@ +/* Copyright (C) 2003 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <stdio.h> +#include <stdint.h> +#ifndef __SSE__ +#include_next <tst-stack-align.h> +#else +#include <xmmintrin.h> + +#define TEST_STACK_ALIGN() \ + ({ \ + __m128 _m; \ + double _d = 12.0; \ + long double _ld = 15.0; \ + int _ret = 0; \ + printf ("__m128: %p %zu\n", &_m, __alignof (__m128)); \ + if ((((uintptr_t) &_m) & (__alignof (__m128) - 1)) != 0) \ + _ret = 1; \ + \ + printf ("double: %g %p %zu\n", _d, &_d, __alignof (double)); \ + if ((((uintptr_t) &_d) & (__alignof (double) - 1)) != 0) \ + _ret = 1; \ + \ + printf ("ldouble: %Lg %p %zu\n", _ld, &_ld, __alignof (long double)); \ + if ((((uintptr_t) &_ld) & (__alignof (long double) - 1)) != 0) \ + _ret = 1; \ + _ret; \ + }) +#endif |