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authorUlrich Drepper <drepper@redhat.com>1997-08-10 18:37:15 +0000
committerUlrich Drepper <drepper@redhat.com>1997-08-10 18:37:15 +0000
commit0413b54c02d31cae62e8d13b3ee7ac109ceeff0e (patch)
tree5159587edd2bf4a39fcb5c42588aa35c7350fe8d /sysdeps/powerpc/test-arith.c
parent55c14926be46b12fda4e01d0977911d3b0883db7 (diff)
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1997-08-10 18:48 Ulrich Drepper <drepper@cygnus.com> * Makeconfig: Define build-programs to no if not set and $(config-os) is none. * Makerules (+depfiles): Don't add $(others) if not build-programs. * Rules (others): Don't depend on $(install-bin), $(install-rootbin) and $(install-sbin) if not build-programs. * Makefile (subdirs): Remove login. * sysdeps/mach/hurd/Subdirs: Add login. * sysdeps/unix/Subdirs: Add login. * sysdeps/generic/sys/mman.h: Test feature macros before defining non-POSIX things. Add MAP_FAILED. * sysdeps/unix/bsd/osf/sys/mman.h: Likewise. * sysdeps/unix/bsd/sun/sunos4/sys/mman.h: Likewise. * sysdeps/unix/bsd/ultrix4/sys/mman.h: Likewise. * sysdeps/unix/sysv/irix4/sys/mman.h: Likewise. * sysdeps/unix/sysv/linux/sys/mman.h: Rewrite to not use kernel header but bits/mman.h. Test feature macros before definitions non-POSIX functions. * sysdeps/unix/sysv/linux/alpha/bits/mman.h: New file. * sysdeps/unix/sysv/linux/i386/bits/mman.h: New file. * sysdeps/unix/sysv/linux/m68k/bits/mman.h: New file. * sysdeps/unix/sysv/linux/mips/bits/mman.h: New file. * sysdeps/unix/sysv/linux/powerpc/bits/mman.h: New file. * sysdeps/unix/sysv/linux/sparc/bits/mman.h: New file. * sysdeps/unix/sysv/linux/sparc64/bits/mman.h: New file. * sysdeps/unix/sysv/linux/alpha/Dist: Add bits/mman.h. * sysdeps/unix/sysv/linux/i386/Dist: Likewise. * sysdeps/unix/sysv/linux/m68k/Dist: Likewise. * sysdeps/unix/sysv/linux/mips/Dist: Likewise. * sysdeps/unix/sysv/linux/powerpc/Dist: Likewise. * sysdeps/unix/sysv/linux/sparc/Dist: Likewise. * sysdeps/unix/sysv/linux/sparc64/Dist: New file. Likewise. * catgets/open_catalog.c (__open_catalog): Compare result of mmap with MAP_FAILED and not -1. * elf/dl-load.c (_dl_map_object_from_fd): Likewise. * elf/dl-minimal.c (malloc): Likewise. * elf/dl-misc.c (_dl_sysdep_read_whole_file): Likewise. * locale/loadlocale.c (_nl_load_locale): Likewise. * locale/programs/localedef.c: Likewise. * malloc/malloc.c (mmap_chunk): Likewise. (new_heap): Likewise. * string/stratcliff.c: Likewise. * string/tester.c: Add tests for stpcpy. * gmon/gmon.c (__monstartup): Use calloc instead of malloc+memset. * gmon/sys/gmon.h: Add prototype for write_profiling. * elf/dl-profile.c: Add decsriptions and implement reading of existing data in profiling file. * gmon/sys/gmon_out.h (GMON_SHOBJ_VERSION): New macro for shared lib profiling data. * sysdeps/stub/bits/libc-lock.h (__libc_once_define): Add new first parameter for class. * inet/inet_ntoa.c: Make once control variable static. Correctly handle case where key cannot be retrieved. * inet/Makefile (tests): Add tst-ntoa. * inet/tst-ntoa.c: New file. * manual/time.texi: Document localtime_r, gmtime_r, asctime_r, and ctime_r. Mention that tzname values must not be changed. * manual/users.texi: Document UTMP/WTMP handling functions. Mainly written by Mark Kettenis. * math/libm-test.c (cbrt_test): Add test for number with aboslute value < 1.0. * nss/nss_files/files-XXX.c (internal_setent): If opening of file failed with EGAIN return NSS_STATUS_TRYAGAIN. * nss/nss_files/files-alias.c (internal_setent): Likewise. * sysdeps/generic/bits/utmp.h: Pretty print. * sysdeps/i386/i586/strcpy.S: New file. Much faster implementation. * sysdeps/i386/i586/stpcpy.S: New file. * sysdeps/i386/i686/Implies: Don't fall back on i586 versions since these are less efficient than i486/i386 versions. * sysdeps/libm-i387/e_rem_pio2.c: Add empty file to prevent the version from libm-ieee754 be compiled since the later is not needed. * sysdeps/libm-i387/e_rem_pio2f.c: Likewise. * sysdeps/libm-i387/e_rem_pio2l.c: Likewise. * sysdeps/libm-i387/k_rem_pio2.c: Likewise. * sysdeps/libm-i387/k_rem_pio2f.c: Likewise. * sysdeps/libm-i387/k_rem_pio2l.c: Likewise. * sysdeps/m68k/fpu/e_rem_pio2.c: Likewise. * sysdeps/m68k/fpu/e_rem_pio2f.c: Likewise. * sysdeps/m68k/fpu/e_rem_pio2l.c: Likewise. * sysdeps/m68k/fpu/k_rem_pio2.c: Likewise. * sysdeps/m68k/fpu/k_rem_pio2f.c: Likewise. * sysdeps/m68k/fpu/k_rem_pio2l.c: Likewise. * sysdeps/libm-i387/s_cbrt.S: Fix several bugs. * sysdeps/libm-i387/s_cbrtf.S: Likewise. * sysdeps/libm-i387/s_cbrtl.S: Likewise. * sysdeps/unix/sysv/linux/if_index.c (if_indextoname): Correct little bug. * sysdeps/unix/sysv/linux/bits/socket.h (struct msghdr): Make field msg_iovlen of type int. * time/tzfile.c: Change return type of __tzstring to char *. * time/tzset.c: Likewise. Change definition of __tzstring. * time/tzset.c: Interpret no DST information in user provided time zone specification as it is meant: no DST. Patch by Paul Eggert <eggert@twinsun.com>. 1997-07-20 03:01 Geoff Keating <geoffk@ozemail.com.au> * sysdeps/elf/dl-load.c (add_name_to_object): New procedure. (_dl_map_object_from_fd): Use add_name_to_object. (_dl_map_object): If an object's SONAME is used to resolve a dependency, add it to the list of the object's names. * inet/getnameinfo.c: Make `domain' non-const. * sysdeps/unix/sysv/linux/powerpc/kernel_termios.c: Clean up. * math/test-fenv.c (feenv_nomask_test): Don't execute if FE_NOMASK_ENV is not defined, or if fesetenv(FE_NOMASK_ENV) sets errno to ENOSYS. * sysdeps/powerpc/dl-machine.h: Print proper error message on unknown reloc type (rather than using assert). * sysdeps/unix/sysv/linux/powerpc/profil-counter.h: New file. * sysdeps/unix/sysv/linux/powerpc/profil.c: Deleted. 1997-07-16 12:47 Geoff Keating <geoffk@ozemail.com.au> * sysdeps/powerpc/bits/fenv.h (feraiseexcept): New optimising macro. (feclearexcept): New optimising macro. (FE_NOMASK_ENV): Change to procedure so it can enable exceptions. (FE_ENABLED_ENV): Add. (FE_NONIEEE_ENV): Add. * sysdeps/powerpc/bits/fenv_const.c: Add __fe_enabled_env, __fe_nonieee_env; delete __fe_nomask_env. * sysdeps/powerpc/bits/fe_nomask.c: New file (stub warning until it gets implemented in the kernel). * sysdeps/powerpc/fraiseenv.c: Deal with chips that don't have FE_INVALID_SOFTWARE implemented. Use macros for bit names for clarity. * sysdeps/powerpc/fsetexcptflag.c: Likewise. * io/ftw.c: Don't compare holes in structures. * sysdeps/unix/sysv/linux/sys/sysmacros.h: Cast the result of the macros to `int', because otherwise it might be `long long' which the calling code is probably not expecting. * sysdeps/libm-ieee754/s_lround.c [NO_LONG_DOUBLE]: Fix a few bugs, document the existence of some more. * sysdeps/powerpc/s_llrint.c: New file. * sysdeps/powerpc/s_lrint.c: New file. * sysdeps/powerpc/s_llround.c: New file. * sysdeps/powerpc/s_lround.c: New file. * sysdeps/powerpc/s_sqrt.c: New file. * sysdeps/powerpc/s_sqrtf.c: New file. * sysdeps/powerpc/w_sqrt.s: New empty file. * sysdeps/powerpc/w_sqrtf.s: New empty file. * sysdeps/powerpc/t_sqrt.c: New file. * sysdeps/powerpc/test-arithf.c: New file. * sysdeps/powerpc/Makefile [subdir=math]: Add t_sqrt to support routines. Add test-arithf to test programs. * sysdeps/powerpc/bits/mathdef.h: Add FP_ILOGB0, FP_ILOGBNAN. * sysdeps/powerpc/strcmp.s: Simplify drastically. Now much neater, and possibly faster (or possibly slower, depending on input). 1997-06-08 22:55 Geoff Keating <geoffk@ozemail.com.au> * sysdeps/powerpc/fenvbits.h: Correct FE_DFL_ENV and FE_NOMASK_ENV macros. * sysdeps/powerpc/s_rint.c: New file. 1997-05-22 08:47 Geoff Keating <geoffk@ozemail.com.au> * sysdeps/powerpc/Makefile [subdir=math]: Add q_* routines. * sysdeps/powerpc/Dist: Add quad_float.h. * sysdeps/powerpc/q_dtoq.c: New file. * sysdeps/powerpc/q_itoq.c: New file. * sysdeps/powerpc/q_lltoq.c: New file. * sysdeps/powerpc/q_neg.c: New file. * sysdeps/powerpc/q_qtoi.c: New file. * sysdeps/powerpc/q_qtoll.c: New file. * sysdeps/powerpc/q_qtos.c: New file. * sysdeps/powerpc/q_qtou.c: New file. * sysdeps/powerpc/q_qtoull.c: New file. * sysdeps/powerpc/q_stoq.c: New file. * sysdeps/powerpc/q_ulltoq.c: New file. * sysdeps/powerpc/q_utoq.c: New file. * sysdeps/powerpc/quad_float.h: New file. * sysdeps/powerpc/test-arith.c: New file. * sysdeps/powerpc/fpu_control.h: Fix _FPU_GETCW. * sysdeps/powerpc/fegetround.c: Use mcrfs to be faster and not require a stack frame. * sysdeps/powerpc/bits/fenv.h: Include inline macro for fegetround. 1997-05-18 05:55 Geoff Keating <geoffk@ozemail.com.au> * sysdeps/powerpc/fenv_libc.h (fegetenv_register, fesetenv_register): Add 'volatile'. (set_fpscr_bit, reset_fpscr_bit): New macros, FPSCR_* constants to use with them. * sysdeps/powerpc/s_copysign.S: New file. * sysdeps/powerpc/s_copysignf.s: New file. * sysdeps/powerpc/s_fabs.S: New file. * sysdeps/powerpc/s_fabsf.s: New file. * sysdeps/powerpc/s_isnan.c: New file. * sysdeps/powerpc/s_isnanf.s: New file. * sysdeps/powerpc/s_rintf.c: New file. * sysdeps/powerpc/fenvbits.h: Make FE_INVALID the summary bit in the FPSCR, not the enable bit. * sysdeps/powerpc/fraiseexcpt.c: Consequent change to the above. * sysdeps/powerpc/fclrexcpt.c: Correct. * sysdeps/powerpc/fsetexcptflag.c: Correct. * sysdeps/powerpc/ftestexcpt.c: Is now much simpler. * sysdeps/powerpc/fgetexcptflg.c: Simplify. * sysdeps/powerpc/strlen.s: Schedule better, save 3 clocks :-). * sysdeps/powerpc/dl-machine.h (elf_machine_rela): Add comment explaining some reentrancy issues with lazy PLT entries. 1997-08-09 13:04 Mark Kettenis <kettenis@phys.uva.nl> * login/logout.c (logout): utmpname returns -1 on error. * login/libutil.map: Remove updwtmp. * login/getutline.c: Rename getutline to __getutline and make getutline a weak alias. Make getutxline a weak alias for __getutline. * login/getutid.c: Rename getutid to __getutid and make getutid a weak alias. Make getutxid a weak alias for __getutid. * libc.map: Add getutxid, getutxline. * login/utmpname.c (__utmpname): Reset backend right after backend endutent call. * login/utmp_file.c: Reordered functions. Remove unecessary header files. (getutent_r_file, pututline_file): Do not call setutent_file. At this point the file is guaranteed to be open (assert!). (getutid_r_file, getutline_r_file): Remove check for validity of file descriptor. At this point the file is guaranteed to be open. (getutent_r_file, internal_getut_r, getutline_r_file, pututline_file, updwtmp_file): Do not wait when unlocking file. * login/utmp_daemon.c: General cleanup and a bit of reordering. (getutent_r_daemon, pututline_daemon): Do not call setutent_daemon. At this point the socket is guaranteed to be open (assert!). (getutid_r_daemon, getutline_r_daemon): Do not check if daemon_sock is valid. At this point the socket is guaranteed to be open (assert!). * login/getutline_r.c: Remove unnecessary header files. (__getutline_r): Do not call backend setutent. * login/getutid_r.c: Remove unnecessary header files. (__getutid_r): Do not call backend setutent. * login/getutent_r.c: Remove unneccesary header files. (__libc_utmp_unknown_functions): Added getutid_r_unknown, getutline_r_unknown. (setutent_unknown): Only set file backend if setutent for the file backend was successful. (getutent_r_unknown, pututline_unknown): Call setutent_unknown instead of __setutent. Report failure if no backend was selected. (getutid_r_unknown): New function. (getutline_r_unknown): New function. (__endutent): Reset backend. This makes sure all backends are checked on the next setutent call. 1997-08-08 20:20 Thorsten Kukuk <kukuk@vt.uni-paderborn.de> * nis_cache.c: Replace dummy functions. * libc.map: Add xdr_sizeof symbol. * sunrpc/Makefile: Add xdr_sizeof to routines. * sunrpc/rpc/xdr.h: Add xdr_sizeof prototype. * sunrpc/xdr_sizeof.c: New, from tirpc 2.3. 1997-08-08 Thomas Bushnell, n/BSG <thomas@gnu.ai.mit.edu> * sysdeps/mach/bits/libc-lock.h (__libc_once): Define correctly. 1997-08-07 Thomas Bushnell, n/BSG <thomas@gnu.ai.mit.edu> * sysdeps/mach/hurd/profil.c (fetch_samples): Put parens in the right place. 1997-08-06 Thomas Bushnell, n/BSG <thomas@gnu.ai.mit.edu> * sysdeps/mach/hurd/profil.c (fetch_samples): Do arithmetic on PC's in long long to avoid overflow. 1997-08-07 Thomas Bushnell, n/BSG <thomas@gnu.ai.mit.edu> * sysdeps/mach/bits/libc-lock.h (__libc_once, __libc_once_define): New macros. 1997-08-06 Andreas Jaeger <aj@arthur.rhein-neckar.de> * nis/Makefile (headers): Remove bits/nislib.h. 1997-08-06 14:54 Ulrich Drepper <drepper@cygnus.com> * sysdeps/mach/hurd/Subdirs: Add login. 1997-08-06 14:23 Klaus Espenlaub <kespenla@hydra.informatik.uni-ulm.de> * db/hash/hash.c (init_hash): Don't use stat() if it doesn't provide the preferred block size. * login/programs/database.c (store_state_entry): Don't compile if there is no ut_type field. (store_state_entry, store_process_entry): Use the ut_tv field for timestamps if supported. * login/programs/utmpdump.c (print_entry): Always use ut_tv field. * login/programs/xtmp.c: Fix numerous xtmp/utmp typos. Use the ut_tv field for timestamps if supported. * login/programs/xtmp.h: Fix xtmp/utmp typo. * sysdeps/posix/defs.c (stdstream): Change (PTR) to (void *). * sysdeps/stub/connect.c (connect): Change to __connect, add alias. * sysdeps/stub/send.c (send): Likewise. * sysdeps/stub/s_exp2f.c: Emit correct stub_warning(). * sysdeps/stub/statfs.c: Move stub_warning() to the usual place. * sysdeps/stub/init-first.c: Add definition of __libc_pid. 1997-08-05 13:28 Philip Blundell <pb@spring.nexus.co.uk> * sysdeps/standalone/arm/bits/errno.h: Add EISDIR, EOPNOTSUPP; tidy up formatting. * Makefile (subdirs): Remove `login'. * sysdeps/unix/Subdirs: New file; build `login' subdirectory for Unix systems. 1997-08-05 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * sysdeps/generic/bits/utmpx.h: New file. * sysdeps/mach/hurd/Dist: Add some files. * sysdeps/mips/Dist: Likewise. * sysdeps/mips/mips64/Dist: Likewise. * sysdeps/sparc/Dist: Likewise. * sysdeps/unix/sysv/linux/mips/Dist: Likewise. * sysdeps/unix/sysv/linux/sparc/Dist: Likewise. * sysdeps/mips/mipsel/Dist: New file. * sysdeps/sparc64/elf/Dist: New file. * sysdeps/unix/sysv/linux/sparc64/Dist: New file. 1997-08-05 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * libc.map: Add missing symbols. 1997-08-05 Andreas Jaeger <aj@arthur.rhein-neckar.de> * manual/socket.texi: Correct typos. * manual/math.texi: Correct typos. * manual/time.texi (Formatting Date and Time): Likewise. 1997-08-04 13:06 Thomas Bushnell, n/BSG <thomas@gnu.ai.mit.edu> * gmon/gmon.c (write_gmon): New function; guts from _mcleanup. (_mcleanup): Use write_gmon. (write_profiling): This function can be safely called at any time to write a current histogram without interfering with ongoing profiling. * sysdeps/mach/hurd/profil.c (fetch_samples): Initialize NSAMPLES. 1997-08-01 17:53 Thomas Bushnell, n/BSG <thomas@gnu.ai.mit.edu> * sysdeps/mach/hurd/profil.c (fetch_samples): Sample buffer need not be vm_deallocated; it's a stack buffer. (profil_vm_deallocate): Delete prototype. (#include <../mach/RPC_vm_deallocate_rpc.c>): Drop this inclusion. * sysdeps/mach/hurd/Makefile ($(common-objpfx)hurd/../mach/RPC_vm_deallocate_rpc.c): Delete this rule. * sysdeps/mach/hurd/profil.c (fetch_samples): New function, guts from profile_waiter. (profile_waiter): Use fetch_samples. (profil): When turning off profiling, fetch the last bunch of samples before disabling PC sampling. (fetch_samples): Add prototype. 1997-07-30 12:53 Thomas Bushnell, n/BSG <thomas@gnu.ai.mit.edu> * sysdeps/mach/hurd/Makefile: Give normal rules for the mach RPC source included by profil.c instead of trying to use before-compile grot. 1997-07-23 15:04 Thomas Bushnell, n/BSG <thomas@gnu.ai.mit.edu> * sysdeps/mach/hurd/profil.c (profile_waiter): Do vm_deallocate after releasing lock. Use special RPC stubs and avoid assert, thus making this function entirely independent of the threadvar mechanism and of cthreads. (lock): Convert to be a spin lock instead of a mutex, so that the waiter thread need not use cthreads. Use a fork prepare hook instead of _hurd_fork_locks to make sure we are clean before forking. (fork_profil_child): Renamed from fork_profil. (profil_reply_port): New variable. (profil_vm_deallocate, profil_task_get_sampled_pcs): Special RPC stubs made by special hacks. * sysdeps/mach/hurd/Makefile (before-compile): Add the mach RPC source files that profil.c needs if we are in the gmon directory. * mach/setup-thread.c (__mach_setup_thread): Delete avoidance of a cthreads bug that hasn't existed for two years. * stdio-common/printf_fp.c (__printf_fp): Correct rounding of numbers * locale/programs/locale.c (print_escaped): New function. * time/australasia: Likewise. (open_database, synchronize_database, initialize_database): * nss/nss_files/files-netgrp.c (_nss_netgroup_parseline): Don't * Makerules (load-map-file): Currectly handle missing map file. cannot rely on M_SQRT2 being defined. (log1p): Use __M_SQRT2 not M_SQRT2.
Diffstat (limited to 'sysdeps/powerpc/test-arith.c')
-rw-r--r--sysdeps/powerpc/test-arith.c604
1 files changed, 604 insertions, 0 deletions
diff --git a/sysdeps/powerpc/test-arith.c b/sysdeps/powerpc/test-arith.c
new file mode 100644
index 0000000..c846b0d
--- /dev/null
+++ b/sysdeps/powerpc/test-arith.c
@@ -0,0 +1,604 @@
+/* Test floating-point arithmetic operations.
+ Copyright (C) 1997 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 Library General Public License as
+ published by the Free Software Foundation; either version 2 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
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If not,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE
+#endif
+#include <math.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <fenv.h>
+#include <assert.h>
+
+#ifndef ESIZE
+typedef double tocheck_t;
+#define ESIZE 11
+#define MSIZE 52
+#define FUNC(x) x
+#endif
+
+#define R_NEAREST 1
+#define R_ZERO 2
+#define R_UP 4
+#define R_DOWN 8
+#define R_ALL (R_NEAREST|R_ZERO|R_UP|R_DOWN)
+static fenv_t rmodes[4];
+static const char * const rmnames[4] =
+{ "nearest","zero","+Inf","-Inf" };
+
+typedef union {
+ tocheck_t tc;
+ unsigned char c[sizeof(tocheck_t)];
+} union_t;
+
+/* Don't try reading these in a font that doesn't distinguish
+ O and zero. */
+typedef enum {
+ P_Z = 0x0, /* 00000...0 */
+ P_000O = 0x1, /* 00011...1 */
+ P_001Z = 0x2, /* 00100...0 */
+ P_00O = 0x3, /* 00111...1 */
+ P_01Z = 0x4, /* 01000...0 */
+ P_010O = 0x5, /* 01011...1 */
+ P_011Z = 0x6, /* 01100...0 */
+ P_0O = 0x7, /* 01111...1 */
+ P_1Z = 0x8, /* 10000...0 */
+ P_100O = 0x9, /* 10011...1 */
+ P_101Z = 0xa, /* 10100...0 */
+ P_10O = 0xb, /* 10111...1 */
+ P_11Z = 0xc, /* 11000...0 */
+ P_110O = 0xd, /* 11011...1 */
+ P_111Z = 0xe, /* 11100...0 */
+ P_O = 0xf, /* 11111...1 */
+ P_Z1 = 0x11, /* 000...001 */
+ P_Z10 = 0x12, /* 000...010 */
+ P_Z11 = 0x13, /* 000...011 */
+ P_0O00 = 0x14, /* 011...100 */
+ P_0O01 = 0x15, /* 011...101 */
+ P_0O0 = 0x16, /* 011...110 */
+ P_1Z1 = 0x19, /* 100...001 */
+ P_1Z10 = 0x1a, /* 100...010 */
+ P_1Z11 = 0x1b, /* 100...011 */
+ P_O00 = 0x1c, /* 111...100 */
+ P_O01 = 0x1d, /* 111...101 */
+ P_O0 = 0x1e, /* 111...110 */
+ P_R = 0x20, /* rrr...rrr */ /* ('r' means random. ) */
+ P_Ro = 0x21, /* rrr...rrr, with odd parity. */
+ P_0R = 0x22, /* 0rr...rrr */
+ P_1R = 0x23, /* 1rr...rrr */
+ P_Rno = 0x24, /* rrr...rrr, but not all ones. */
+} pattern_t;
+
+static void
+pattern_fill(pattern_t ptn, unsigned char *start, int bitoffset, int count)
+{
+#define bitset(count, value) \
+ start[(count)/8] = (start[(count)/8] & ~(1 << 7-(count)%8) \
+ | (value) << 7-(count)%8)
+ int i;
+
+ if (ptn >= 0 && ptn <= 0xf)
+ {
+ /* Patterns between 0 and 0xF have the following format:
+ The LSBit is used to fill the last n-3 bits of the pattern;
+ The next 3 bits are the first 3 bits of the pattern. */
+ for (i = 0; i < count; i++)
+ if (i < 3)
+ bitset((bitoffset+i), ptn >> (3-i) & 1);
+ else
+ bitset((bitoffset+i), ptn >> 0 & 1);
+ }
+ else if (ptn <= 0x1f)
+ {
+ /* Patterns between 0x10 and 0x1F have the following format:
+ The two LSBits are the last two bits of the pattern;
+ The 0x8 bit is the first bit of the pattern;
+ The 0x4 bit is used to fill the remainder. */
+ for (i = 0; i < count; i++)
+ if (i == 0)
+ bitset((bitoffset+i), ptn >> 3 & 1);
+ else if (i >= count-2)
+ bitset((bitoffset+i), ptn >> (count-1-i) & 1);
+ else
+ bitset((bitoffset+i), ptn >> 2 & 1);
+ }
+ else switch (ptn)
+ {
+ case P_0R: case P_1R:
+ assert(count > 0);
+ bitset(bitoffset, ptn & 1);
+ count--;
+ bitoffset++;
+ case P_R:
+ for (; count > 0; count--, bitoffset++)
+ bitset(bitoffset, rand() & 1);
+ break;
+ case P_Ro:
+ {
+ int op = 1;
+ assert(count > 0);
+ for (; count > 1; count--, bitoffset++)
+ bitset(bitoffset, op ^= (rand() & 1));
+ bitset(bitoffset, op);
+ break;
+ }
+ case P_Rno:
+ {
+ int op = 1;
+ assert(count > 0);
+ for (; count > 1; count--, bitoffset++)
+ {
+ int r = rand() & 1;
+ op &= r;
+ bitset(bitoffset, r);
+ }
+ bitset(bitoffset, rand() & (op ^ 1));
+ break;
+ }
+
+ default:
+ assert(0);
+ }
+#undef bitset
+}
+
+static tocheck_t
+pattern(int negative, pattern_t exp, pattern_t mant)
+{
+ union_t result;
+#if 0
+ int i;
+#endif
+
+ pattern_fill(negative ? P_O : P_Z, result.c, 0, 1);
+ pattern_fill(exp, result.c, 1, ESIZE);
+ pattern_fill(mant, result.c, ESIZE+1, MSIZE);
+#if 0
+ printf("neg=%d exp=%02x mant=%02x: ", negative, exp, mant);
+ for (i = 0; i < sizeof(tocheck_t); i++)
+ printf("%02x", result.c[i]);
+ printf("\n");
+#endif
+ return result.tc;
+}
+
+/* Return the closest different tocheck_t to 'x' in the direction of
+ 'direction', or 'x' if there is no such value. Assumes 'x' is not
+ a NaN. */
+static tocheck_t
+delta(tocheck_t x, int direction)
+{
+ union_t xx;
+ int i;
+
+ xx.tc = x;
+ if (xx.c[0] & 0x80)
+ direction = -direction;
+ if (direction == +1)
+ {
+ union_t tx;
+ tx.tc = pattern(xx.c[0] >> 7, P_O, P_Z);
+ if (memcmp(tx.c, xx.c, sizeof(tocheck_t)) == 0)
+ return x;
+ }
+ for (i = sizeof(tocheck_t)-1; i > 0; i--)
+ {
+ xx.c[i] += direction;
+ if (xx.c[i] != (direction > 0 ? 0 : 0xff))
+ return xx.tc;
+ }
+ if (direction < 0 && (xx.c[0] & 0x7f) == 0)
+ return pattern(~(xx.c[0] >> 7) & 1, P_Z, P_Z1);
+ else
+ {
+ xx.c[0] += direction;
+ return xx.tc;
+ }
+}
+
+static int nerrors = 0;
+
+#ifdef FE_ALL_INVALID
+static const int all_exceptions = FE_ALL_INVALID | FE_ALL_EXCEPT;
+#else
+static const int all_exceptions = FE_ALL_EXCEPT;
+#endif
+
+static void
+check_result(int line, const char *rm, tocheck_t expected, tocheck_t actual)
+{
+ if (memcmp(&expected, &actual, sizeof(tocheck_t)) != 0)
+ {
+ unsigned char *ex, *ac;
+ int i;
+
+ printf("%s:%d:round %s:result failed\n"
+ " expected result 0x", __FILE__, line, rm);
+ ex = (unsigned char *)&expected;
+ ac = (unsigned char *)&actual;
+ for (i = 0; i < sizeof(tocheck_t); i++)
+ printf("%02x", ex[i]);
+ printf(" got 0x");
+ for (i = 0; i < sizeof(tocheck_t); i++)
+ printf("%02x", ac[i]);
+ printf("\n");
+ nerrors++;
+ }
+}
+
+static const struct {
+ int except;
+ const char *name;
+} excepts[] = {
+#define except_entry(ex) { ex, #ex } ,
+#ifdef FE_INEXACT
+ except_entry(FE_INEXACT)
+#else
+# define FE_INEXACT 0
+#endif
+#ifdef FE_DIVBYZERO
+ except_entry(FE_DIVBYZERO)
+#else
+# define FE_DIVBYZERO 0
+#endif
+#ifdef FE_UNDERFLOW
+ except_entry(FE_UNDERFLOW)
+#else
+# define FE_UNDERFLOW 0
+#endif
+#ifdef FE_OVERFLOW
+ except_entry(FE_OVERFLOW)
+#else
+# define FE_OVERFLOW 0
+#endif
+#ifdef FE_INVALID
+ except_entry(FE_INVALID)
+#else
+# define FE_INVALID 0
+#endif
+#ifdef FE_INVALID_SNAN
+ except_entry(FE_INVALID_SNAN)
+#else
+# define FE_INVALID_SNAN FE_INVALID
+#endif
+#ifdef FE_INVALID_ISI
+ except_entry(FE_INVALID_ISI)
+#else
+# define FE_INVALID_ISI FE_INVALID
+#endif
+#ifdef FE_INVALID_IDI
+ except_entry(FE_INVALID_IDI)
+#else
+# define FE_INVALID_IDI FE_INVALID
+#endif
+#ifdef FE_INVALID_ZDZ
+ except_entry(FE_INVALID_ZDZ)
+#else
+# define FE_INVALID_ZDZ FE_INVALID
+#endif
+#ifdef FE_INVALID_COMPARE
+ except_entry(FE_INVALID_COMPARE)
+#else
+# define FE_INVALID_COMPARE FE_INVALID
+#endif
+#ifdef FE_INVALID_SOFTWARE
+ except_entry(FE_INVALID_SOFTWARE)
+#else
+# define FE_INVALID_SOFTWARE FE_INVALID
+#endif
+#ifdef FE_INVALID_SQRT
+ except_entry(FE_INVALID_SQRT)
+#else
+# define FE_INVALID_SQRT FE_INVALID
+#endif
+#ifdef FE_INVALID_INTEGER_CONVERSION
+ except_entry(FE_INVALID_INTEGER_CONVERSION)
+#else
+# define FE_INVALID_INTEGER_CONVERSION FE_INVALID
+#endif
+};
+
+static int excepts_missing = 0;
+
+static void
+check_excepts(int line, const char *rm, int expected, int actual)
+{
+ if (expected & excepts_missing)
+ expected = expected & ~excepts_missing | FE_INVALID_SNAN;
+ if ((expected & all_exceptions) != actual)
+ {
+ int i;
+ printf("%s:%d:round %s:exceptions failed\n"
+ " expected exceptions ", __FILE__, line,rm);
+ for (i = 0; i < sizeof(excepts)/sizeof(excepts[0]); i++)
+ if (expected & excepts[i].except)
+ printf("%s ",excepts[i].name);
+ if ((expected & all_exceptions) == 0)
+ printf("- ");
+ printf("got");
+ for (i = 0; i < sizeof(excepts)/sizeof(excepts[0]); i++)
+ if (actual & excepts[i].except)
+ printf(" %s",excepts[i].name);
+ if ((actual & all_exceptions) == 0)
+ printf("- ");
+ printf(".\n");
+ nerrors++;
+ }
+}
+
+typedef enum {
+ B_ADD, B_SUB, B_MUL, B_DIV, B_NEG, B_ABS, B_SQRT
+} op_t;
+typedef struct {
+ int line;
+ op_t op;
+ int a_sgn;
+ pattern_t a_exp, a_mant;
+ int b_sgn;
+ pattern_t b_exp, b_mant;
+ int rmode;
+ int excepts;
+ int x_sgn;
+ pattern_t x_exp, x_mant;
+} optest_t;
+static const optest_t optests[] = {
+ /* Additions of zero. */
+ {__LINE__,B_ADD, 0,P_Z,P_Z, 0,P_Z,P_Z, R_ALL,0, 0,P_Z,P_Z },
+ {__LINE__,B_ADD, 1,P_Z,P_Z, 0,P_Z,P_Z, R_ALL & ~R_DOWN,0, 0,P_Z,P_Z },
+ {__LINE__,B_ADD, 1,P_Z,P_Z, 0,P_Z,P_Z, R_DOWN,0, 1,P_Z,P_Z },
+ {__LINE__,B_ADD, 1,P_Z,P_Z, 1,P_Z,P_Z, R_ALL,0, 1,P_Z,P_Z },
+
+ /* Additions with NaN. */
+ {__LINE__,B_ADD, 0,P_O,P_101Z, 0,P_Z,P_Z, R_ALL,0, 0,P_O,P_101Z },
+ {__LINE__,B_ADD, 0,P_O,P_01Z, 0,P_Z,P_Z, R_ALL,
+ FE_INVALID | FE_INVALID_SNAN, 0,P_O,P_11Z },
+ {__LINE__,B_ADD, 0,P_O,P_Z, 0,P_O,P_0O, R_ALL,
+ FE_INVALID | FE_INVALID_SNAN, 0,P_O,P_O },
+ {__LINE__,B_ADD, 0,P_Z,P_Z, 0,P_O,P_11Z, R_ALL,0, 0,P_O,P_11Z },
+ {__LINE__,B_ADD, 0,P_O,P_001Z, 0,P_O,P_001Z, R_ALL,
+ FE_INVALID | FE_INVALID_SNAN, 0,P_O,P_101Z },
+ {__LINE__,B_ADD, 0,P_O,P_1Z, 0,P_Z,P_Z, R_ALL,0, 0,P_O,P_1Z },
+ {__LINE__,B_ADD, 0,P_0O,P_Z, 0,P_O,P_10O, R_ALL,0, 0,P_O,P_10O },
+
+ /* Additions with infinity. */
+ {__LINE__,B_ADD, 0,P_O,P_Z, 0,P_Z,P_Z, R_ALL,0, 0,P_O,P_Z },
+ {__LINE__,B_ADD, 0,P_O,P_Z, 1,P_Z,P_Z, R_ALL,0, 0,P_O,P_Z },
+ {__LINE__,B_ADD, 1,P_O,P_Z, 0,P_Z,P_Z, R_ALL,0, 1,P_O,P_Z },
+ {__LINE__,B_ADD, 1,P_O,P_Z, 1,P_Z,P_Z, R_ALL,0, 1,P_O,P_Z },
+ {__LINE__,B_ADD, 0,P_O,P_Z, 0,P_O,P_Z, R_ALL,0, 0,P_O,P_Z },
+ {__LINE__,B_ADD, 1,P_O,P_Z, 1,P_O,P_Z, R_ALL,0, 1,P_O,P_Z },
+ {__LINE__,B_ADD, 0,P_O,P_Z, 1,P_O,P_Z, R_ALL,
+ FE_INVALID | FE_INVALID_ISI, 0,P_O,P_1Z },
+ {__LINE__,B_ADD, 1,P_O,P_Z, 0,P_O,P_Z, R_ALL,
+ FE_INVALID | FE_INVALID_ISI, 0,P_O,P_1Z },
+ {__LINE__,B_ADD, 0,P_O,P_Z, 0,P_0O,P_Z, R_ALL,0, 0,P_O,P_Z },
+ {__LINE__,B_ADD, 1,P_O,P_Z, 0,P_0O,P_Z, R_ALL,0, 1,P_O,P_Z },
+ {__LINE__,B_ADD, 0,P_O,P_Z, 1,P_0O,P_Z, R_ALL,0, 0,P_O,P_Z },
+ {__LINE__,B_ADD, 1,P_O,P_Z, 1,P_0O,P_Z, R_ALL,0, 1,P_O,P_Z },
+
+ /* Overflow (and zero). */
+ {__LINE__,B_ADD, 0,P_O0,P_Z, 0,P_O0,P_Z, R_NEAREST | R_UP,
+ FE_INEXACT | FE_OVERFLOW, 0,P_O,P_Z },
+ {__LINE__,B_ADD, 0,P_O0,P_Z, 0,P_O0,P_Z, R_ZERO | R_DOWN,
+ FE_INEXACT | FE_OVERFLOW, 0,P_O0,P_O },
+ {__LINE__,B_ADD, 1,P_O0,P_Z, 1,P_O0,P_Z, R_NEAREST | R_DOWN,
+ FE_INEXACT | FE_OVERFLOW, 1,P_O,P_Z },
+ {__LINE__,B_ADD, 1,P_O0,P_Z, 1,P_O0,P_Z, R_ZERO | R_UP,
+ FE_INEXACT | FE_OVERFLOW, 1,P_O0,P_O },
+ {__LINE__,B_ADD, 0,P_O0,P_Z, 1,P_O0,P_Z, R_ALL & ~R_DOWN,
+ 0, 0,P_Z,P_Z },
+ {__LINE__,B_ADD, 0,P_O0,P_Z, 1,P_O0,P_Z, R_DOWN,
+ 0, 1,P_Z,P_Z },
+
+ /* Negation. */
+ {__LINE__,B_NEG, 0,P_Z,P_Z, 0,0,0, R_ALL, 0, 1,P_Z,P_Z },
+ {__LINE__,B_NEG, 1,P_Z,P_Z, 0,0,0, R_ALL, 0, 0,P_Z,P_Z },
+ {__LINE__,B_NEG, 0,P_O,P_Z, 0,0,0, R_ALL, 0, 1,P_O,P_Z },
+ {__LINE__,B_NEG, 1,P_O,P_Z, 0,0,0, R_ALL, 0, 0,P_O,P_Z },
+ {__LINE__,B_NEG, 0,P_O,P_1Z, 0,0,0, R_ALL, 0, 1,P_O,P_1Z },
+ {__LINE__,B_NEG, 1,P_O,P_1Z, 0,0,0, R_ALL, 0, 0,P_O,P_1Z },
+ {__LINE__,B_NEG, 0,P_O,P_01Z, 0,0,0, R_ALL, 0, 1,P_O,P_01Z },
+ {__LINE__,B_NEG, 1,P_O,P_01Z, 0,0,0, R_ALL, 0, 0,P_O,P_01Z },
+ {__LINE__,B_NEG, 0,P_1Z,P_1Z1, 0,0,0, R_ALL, 0, 1,P_1Z,P_1Z1 },
+ {__LINE__,B_NEG, 1,P_1Z,P_1Z1, 0,0,0, R_ALL, 0, 0,P_1Z,P_1Z1 },
+ {__LINE__,B_NEG, 0,P_Z,P_Z1, 0,0,0, R_ALL, 0, 1,P_Z,P_Z1 },
+ {__LINE__,B_NEG, 1,P_Z,P_Z1, 0,0,0, R_ALL, 0, 0,P_Z,P_Z1 },
+
+ /* Absolute value. */
+ {__LINE__,B_ABS, 0,P_Z,P_Z, 0,0,0, R_ALL, 0, 0,P_Z,P_Z },
+ {__LINE__,B_ABS, 1,P_Z,P_Z, 0,0,0, R_ALL, 0, 0,P_Z,P_Z },
+ {__LINE__,B_ABS, 0,P_O,P_Z, 0,0,0, R_ALL, 0, 0,P_O,P_Z },
+ {__LINE__,B_ABS, 1,P_O,P_Z, 0,0,0, R_ALL, 0, 0,P_O,P_Z },
+ {__LINE__,B_ABS, 0,P_O,P_1Z, 0,0,0, R_ALL, 0, 0,P_O,P_1Z },
+ {__LINE__,B_ABS, 1,P_O,P_1Z, 0,0,0, R_ALL, 0, 0,P_O,P_1Z },
+ {__LINE__,B_ABS, 0,P_O,P_01Z, 0,0,0, R_ALL, 0, 0,P_O,P_01Z },
+ {__LINE__,B_ABS, 1,P_O,P_01Z, 0,0,0, R_ALL, 0, 0,P_O,P_01Z },
+ {__LINE__,B_ABS, 0,P_1Z,P_1Z1, 0,0,0, R_ALL, 0, 0,P_1Z,P_1Z1 },
+ {__LINE__,B_ABS, 1,P_1Z,P_1Z1, 0,0,0, R_ALL, 0, 0,P_1Z,P_1Z1 },
+ {__LINE__,B_ABS, 0,P_Z,P_Z1, 0,0,0, R_ALL, 0, 0,P_Z,P_Z1 },
+ {__LINE__,B_ABS, 1,P_Z,P_Z1, 0,0,0, R_ALL, 0, 0,P_Z,P_Z1 },
+
+ /* Square root. */
+ {__LINE__,B_SQRT, 0,P_Z,P_Z, 0,0,0, R_ALL, 0, 0,P_Z,P_Z },
+ {__LINE__,B_SQRT, 1,P_Z,P_Z, 0,0,0, R_ALL, 0, 1,P_Z,P_Z },
+ {__LINE__,B_SQRT, 0,P_O,P_1Z, 0,0,0, R_ALL, 0, 0,P_O,P_1Z },
+ {__LINE__,B_SQRT, 1,P_O,P_1Z, 0,0,0, R_ALL, 0, 1,P_O,P_1Z },
+ {__LINE__,B_SQRT, 0,P_O,P_01Z, 0,0,0, R_ALL,
+ FE_INVALID | FE_INVALID_SNAN, 0,P_O,P_11Z },
+ {__LINE__,B_SQRT, 1,P_O,P_01Z, 0,0,0, R_ALL,
+ FE_INVALID | FE_INVALID_SNAN, 1,P_O,P_11Z },
+
+ {__LINE__,B_SQRT, 0,P_O,P_Z, 0,0,0, R_ALL, 0, 0,P_O,P_Z },
+ {__LINE__,B_SQRT, 0,P_0O,P_Z, 0,0,0, R_ALL, 0, 0,P_0O,P_Z },
+
+ {__LINE__,B_SQRT, 1,P_O,P_Z, 0,0,0, R_ALL,
+ FE_INVALID | FE_INVALID_SQRT, 0,P_O,P_1Z },
+ {__LINE__,B_SQRT, 1,P_1Z,P_1Z1, 0,0,0, R_ALL,
+ FE_INVALID | FE_INVALID_SQRT, 0,P_O,P_1Z },
+ {__LINE__,B_SQRT, 1,P_Z,P_Z1, 0,0,0, R_ALL,
+ FE_INVALID | FE_INVALID_SQRT, 0,P_O,P_1Z },
+
+};
+
+static void
+check_op(void)
+{
+ int i, j;
+ tocheck_t r, a, b, x;
+ int raised;
+
+ for (i = 0; i < sizeof(optests)/sizeof(optests[0]); i++)
+ {
+ a = pattern(optests[i].a_sgn, optests[i].a_exp,
+ optests[i].a_mant);
+ b = pattern(optests[i].b_sgn, optests[i].b_exp,
+ optests[i].b_mant);
+ x = pattern(optests[i].x_sgn, optests[i].x_exp,
+ optests[i].x_mant);
+ for (j = 0; j < 4; j++)
+ if (optests[i].rmode & 1<<j)
+ {
+ fesetenv(rmodes+j);
+ switch (optests[i].op)
+ {
+ case B_ADD: r = a + b; break;
+ case B_SUB: r = a - b; break;
+ case B_MUL: r = a * b; break;
+ case B_DIV: r = a / b; break;
+ case B_NEG: r = -a; break;
+ case B_ABS: r = FUNC(fabs)(a); break;
+ case B_SQRT: r = FUNC(sqrt)(a); break;
+ }
+ raised = fetestexcept(all_exceptions);
+ check_result(optests[i].line,rmnames[j],x,r);
+ check_excepts(optests[i].line,rmnames[j],
+ optests[i].excepts,raised);
+ }
+ }
+}
+
+static void
+fail_xr(int line, const char *rm, tocheck_t x, tocheck_t r, tocheck_t xx,
+ int xflag)
+{
+ int i;
+ unsigned char *cx, *cr, *cxx;
+
+ printf("%s:%d:round %s:fail\n with x=0x", __FILE__, line,rm);
+ cx = (unsigned char *)&x;
+ cr = (unsigned char *)&r;
+ cxx = (unsigned char *)&xx;
+ for (i = 0; i < sizeof(tocheck_t); i++)
+ printf("%02x", cx[i]);
+ printf(" r=0x");
+ for (i = 0; i < sizeof(tocheck_t); i++)
+ printf("%02x", cr[i]);
+ printf(" xx=0x");
+ for (i = 0; i < sizeof(tocheck_t); i++)
+ printf("%02x", cxx[i]);
+ printf(" inexact=%d\n", xflag != 0);
+ nerrors++;
+}
+
+static void
+check_sqrt(tocheck_t a)
+{
+ int j;
+ tocheck_t r0, r1, r2, x0, x1, x2;
+ int raised = 0;
+ int ok;
+
+ for (j = 0; j < 4; j++)
+ {
+ int excepts;
+
+ fesetenv(rmodes+j);
+ r1 = FUNC(sqrt)(a);
+ excepts = fetestexcept(all_exceptions);
+ fesetenv(FE_DFL_ENV);
+ raised |= excepts & ~FE_INEXACT;
+ x1 = r1 * r1 - a;
+ if (excepts & FE_INEXACT)
+ {
+ r0 = delta(r1,-1); r2 = delta(r1,1);
+ switch (1 << j)
+ {
+ case R_NEAREST:
+ x0 = r0 * r0 - a; x2 = r2 * r2 - a;
+ ok = fabs(x0) >= fabs(x1) && fabs(x1) <= fabs(x2);
+ break;
+ case R_ZERO: case R_DOWN:
+ x2 = r2 * r2 - a;
+ ok = x1 <= 0 && x2 >= 0;
+ break;
+ case R_UP:
+ x0 = r0 * r0 - a;
+ ok = x1 >= 0 && x0 <= 0;
+ break;
+ default:
+ assert(0);
+ }
+ }
+ else
+ ok = x1 == 0;
+ if (!ok)
+ fail_xr(__LINE__,rmnames[j],a,r1,x1,excepts&FE_INEXACT);
+ }
+ check_excepts(__LINE__,"all",0,raised);
+}
+
+int main(int argc, char **argv)
+{
+ int i;
+
+ _LIB_VERSION = _IEEE_;
+
+ /* Set up environments for rounding modes. */
+ fesetenv(FE_DFL_ENV);
+ fesetround(FE_TONEAREST);
+ fegetenv(rmodes+0);
+ fesetround(FE_TOWARDSZERO);
+ fegetenv(rmodes+1);
+ fesetround(FE_UPWARD);
+ fegetenv(rmodes+2);
+ fesetround(FE_DOWNWARD);
+ fegetenv(rmodes+3);
+
+#if defined(FE_INVALID_SOFTWARE) || defined(FE_INVALID_SQRT)
+ /* There's this really stupid feature of the 601... */
+ fesetenv(FE_DFL_ENV);
+ feraiseexcept(FE_INVALID_SOFTWARE);
+ if (!fetestexcept(FE_INVALID_SOFTWARE))
+ excepts_missing |= FE_INVALID_SOFTWARE;
+ fesetenv(FE_DFL_ENV);
+ feraiseexcept(FE_INVALID_SQRT);
+ if (!fetestexcept(FE_INVALID_SQRT))
+ excepts_missing |= FE_INVALID_SQRT;
+#endif
+
+ check_op();
+ for (i = 0; i < 100000; i++)
+ check_sqrt(pattern(0, P_Rno, P_R));
+ for (i = 0; i < 100; i++)
+ check_sqrt(pattern(0, P_Z, P_R));
+ check_sqrt(pattern(0,P_Z,P_Z1));
+
+ printf("%d errors.\n", nerrors);
+ return nerrors == 0 ? 0 : 1;
+}