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author | Ulrich Drepper <drepper@redhat.com> | 1997-06-19 19:11:22 +0000 |
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committer | Ulrich Drepper <drepper@redhat.com> | 1997-06-19 19:11:22 +0000 |
commit | d705269e75ff9846000abea981774b381b076482 (patch) | |
tree | 7bd717a8489ad113cb0d10b7628a88d6a55cb836 /sysdeps/libm-i387/e_scalb.S | |
parent | e7f1f046f51d95d5d05ada3abd3f2e88219118e9 (diff) | |
download | glibc-d705269e75ff9846000abea981774b381b076482.tar.gz glibc-d705269e75ff9846000abea981774b381b076482.tar.xz glibc-d705269e75ff9846000abea981774b381b076482.zip |
Update. cvs/libc-ud-970619 cvs/libc-970620
1997-06-19 19:38 Ulrich Drepper <drepper@cygnus.com> * features.h: Define __STDC_IEC_559__ and _STDC_IEC_559_COMPLEX__. * elf/dl-minimal.c (__dcgettext): Remove assertion. * inet/rcmd.c: Correct a few typos. Reported by Eric Troan. * manual/Makefile (distribute): Add dir. * manual/dir: New file. * math/Makefile (libm-support): Rename s_rinttol, s_rinttoll, s_roundtol, and s_roundtoll to s_lrint, s_llrint, s_lround, and s_llround respectively. (libm-calls): Add e_gamma_r. * math/libm-test.c (check_int_exc): New function. (signbit_test): Remove test for sign of NaN. (gamma_test): Clear exception after test of existence. Correct tests and and epsilons. (lgamma_test): Likewise. (ilogb_test): Correct all tests. (scalb_test): Rewrite. (rinttol_test): Rename to lrint_test and correct tests. (rinttoll_test): Likewise. (roundtol_test): Likewise. (roundtoll_test): Likewise. (main): Call lrint/lround functions instead of rinttol/roundtol. * math/math.h: Change prototypes for rinttol/roundtol. * math/mathcalls.h: Rearrange prototypes according to ISO C9X draft. * sysdeps/generic/mathbits.h: Define FP_ILOGB0 and FP_ILOGBNAN. * sysdeps/i386/mathbits.h: Likewise. * sysdeps/libm-i387/e_scalb.S: Handle special cases correctly. * sysdeps/libm-i387/e_scalbf.S: Likewise. * sysdeps/libm-i387/e_scalbl.S: Likewise. * sysdeps/libm-i387/s_asinh.S: Handle -inf correctly. * sysdeps/libm-i387/s_asinhf.S: Likewise. * sysdeps/libm-i387/s_asinhl.S: Likewise. * sysdeps/libm-i387/s_ilogb.S: Optimize. * sysdeps/libm-i387/s_ilogbf.S: Likewise. * sysdeps/libm-i387/s_ilogbl.S: Likewise. * sysdeps/libm-i387/s_rinttol.S: Rename to... * sysdeps/libm-i387/s_lrint.S: ...this. * sysdeps/libm-i387/s_rinttoll.S: Rename to... * sysdeps/libm-i387/s_llrint.S: ...this. * sysdeps/libm-i387/s_remquo.S: Correctly set sign of remainder. * sysdeps/libm-i387/s_remquof.S: Likewise. * sysdeps/libm-i387/s_remquol.S: Likewise. * sysdeps/libm-i387/e_gamma_r.c: New file. Implementation of gamma function according to ISO C. * sysdeps/libm-i387/e_gammaf_r.c: New file. * sysdeps/libm-i387/e_gammal_r.c: New file. * sysdeps/libm-i387/e_lgamma_r.c: Don't let optimize compile the generation of exceptions away. * sysdeps/libm-i387/e_lgammaf_r.c: Likewise. * sysdeps/libm-i387/k_standard.c: Correct return value for infinity points of gamma function when not SVID mode. * sysdeps/libm-i387/s_rinttoll.c: Renamed to... * sysdeps/libm-i387/s_llrint.c: ...this. * sysdeps/libm-i387/s_rinttol.c: Renamed to... * sysdeps/libm-i387/s_lrint.c: ...this. * sysdeps/libm-i387/s_roundtoll.c: Renamed to... * sysdeps/libm-i387/s_llround.c: ...this. * sysdeps/libm-i387/s_roundtol.c: Renamed to... * sysdeps/libm-i387/s_lround.c: ..this. * sysdeps/libm-i387/s_scalbn.c: Change second parameter according to ISO C. * sysdeps/libm-i387/s_scalbnf.c: Likewise. * sysdeps/libm-i387/s_scalbnl.c: Likewise. * sysdeps/libm-i387/w_gamma.c: Call __ieee754_gamma_r if library mode is not _SVID_. * sysdeps/libm-i387/w_gammaf.c: Likewise. * sysdeps/libm-i387/w_gammal.c: Likewise. * sysdeps/m68k/fpu/__math.h: Rename __rinttol to __lrint and rinttol to lrint. * sysdeps/m68k/fpu/s_rinttol.c: Renamed to... * sysdeps/m68k/fpu/s_lrint.c: ...this. * sysdeps/m68k/fpu/s_rinttoll.c: Renamed to... * sysdeps/m68k/fpu/s_llrint.c: ...this. * md5-crypt/Makefile: Link md5test program with md5.o. * stdio-common/temptest.c: Don't use __stdio_gen_tempname which is not exported by the libc.so. * stdio-common/vfscanf.c: Correct scanning of strings after last change. * sysdeps/unix/sysv/linux/i386/sysdep.S: Use .comm to define errno. 1997-06-19 07:37 H.J. Lu <hjl@gnu.ai.mit.edu> * time/tzfile.c (__tzfile_read): Store getc () return in int. 1997-06-13 Miles Bader <miles@gnu.ai.mit.edu> * argp/argp-parse.c (argp_version_parser): Include `(PROGRAM ERROR)' in the no-version error text to indicate that something's fucked. [!_] (N_): New macro. (argp_default_options, argp_version_options): Wrap doc strings in N_(). 1997-06-12 Miles Bader <miles@gnu.ai.mit.edu> * argp/argp-parse.c (parser_parse_opt): Detect and report unhandled options here. (parser_parse_arg): Handle ARGP_KEY_ARGS here. Adjust NEXT pointer back if we fail to parse anything. (parser_parse_next): Simplify arg code. Leave state NEXT frobbing to parser_parse_arg. 1997-06-11 Miles Bader <miles@gnu.ai.mit.edu> * argp/argp.h (ARGP_KEY_ARGS, ARGP_KEY_FINI): New macros. * argp/argp-parse.c (parser_finalize): Do another pass over the parsers with ARGP_KEY_FINI. 1997-06-18 Miles Bader <miles@gnu.ai.mit.edu> * string/Makefile (routines): Add argz-replace. 1997-06-16 00:16 Miles Bader <miles@gnu.ai.mit.edu> * manual/string.texi (Argz Functions): Document argz_replace. 1997-06-12 Miles Bader <miles@gnu.ai.mit.edu> * string/argz.h (__argz_replace, argz_replace): New declarations. * string/argz-replace.c: New file. 1997-06-11 Miles Bader <miles@gnu.ai.mit.edu> * manual/argp.texi (Argp Special Keys): Document ARGP_KEY_ARGS. 1997-06-16 23:08 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * Makeconfig (libc-map): Remove definition. * Makerules (libc-map): Define it here, using the full name. (load-map-file): Remove case for empty $(..). ($(common-objpfx)libc.so): Revert last change. 1997-06-17 22:18 Mark Kettenis <kettenis@phys.uva.nl> * login/programs/utmpd.c (main): Improve signal handling. * login/programs/request.c (do_setutent, do_updwtmp): Allow arbitrary length filenames. * login/programs/utmpd.h (setutent_request, updwtmp_request): Get rid of fixed length file field. * login/utmp_daemon.c (do_setutent, do_updwtmp): Allow arbitrary length filenames. * login/programs/request.c (do_pututline): Don't fail if connection->position is -1 on entry. 1997-06-15 16:32 Mark Kettenis <kettenis@phys.uva.nl> * login/utmp_file.c (updwtmp_file): Use the same method for appending an entry as in pututline_file. 1997-06-11 18:59 Mark Kettenis <kettenis@phys.uva.nl> * login/utmp_file.c (getutent_r_file): Use read lock instead of write lock. (getutline_r_file, internal_getut_r): Lock utmp file. (updwtmp_file): Use fcntl to lock file instead of flock. 1997-06-18 00:11 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * stdio-common/vfscanf.c (inchar, ungetc): Don't count EOF as character read in/put back. * stdio-common/tstscanf.c: Add test case for this. 1997-06-17 22:17 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * libc.map: Add more symbols. 1997-06-18 12:01 Ulrich Drepper <drepper@cygnus.com> * manual/Makefile (install): Make sure `dir' file exists if we use install-info. 1997-06-17 19:32 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * manual/Makefile (info): Depend on dir-add.info. 1997-06-17 17:19 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * elf/ldd.bash.in: Fix spacing in message. 1997-06-17 14:28 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * elf/do-rel.h (elf_dynamic_do_rel): Always use version information if available. 1997-06-17 11:34 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * sunrpc/Makefile ($(rpcsvc:%.x=$(objpfx)rpcsvc/%.h)): Make command non-empty to force make to recheck modification time. ($(rpcsvc:%.x=$(objpfx)x%.c)): Likewise. 1997-06-17 00:26 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * sysdeps/stub/e_acoshl.c: Set errno to ENOSYS. * sysdeps/stub/e_acosl.c: Likewise. * sysdeps/stub/e_asinl.c: Likewise. * sysdeps/stub/e_atan2l.c: Likewise. * sysdeps/stub/e_expl.c: Likewise. * sysdeps/stub/e_fmodl.c: Likewise. * sysdeps/stub/e_j0l.c: Likewise. * sysdeps/stub/e_j1l.c: Likewise. * sysdeps/stub/e_jnl.c: Likewise. * sysdeps/stub/e_lgammal_r.c: Likewise. * sysdeps/stub/e_log10l.c: Likewise. * sysdeps/stub/e_logl.c: Likewise. * sysdeps/stub/e_powl.c: Likewise. * sysdeps/stub/e_rem_pio2l.c: Likewise. * sysdeps/stub/e_sqrtl.c: Likewise. * sysdeps/stub/k_cosl.c: Likewise. * sysdeps/stub/k_rem_pio2l.c: Likewise. * sysdeps/stub/k_sinl.c: Likewise. * sysdeps/stub/k_tanl.c: Likewise. * sysdeps/stub/s_atanl.c: Likewise. * sysdeps/stub/s_erfl.c: Likewise. * sysdeps/stub/s_exp2.c: Likewise. * sysdeps/stub/s_exp2f.c: Likewise. * sysdeps/stub/s_exp2l.c: Likewise. * sysdeps/stub/s_expm1l.c: Likewise. * sysdeps/stub/s_log1pl.c: Likewise. * sysdeps/stub/s_log2l.c: Likewise. 1997-06-18 11:46 Ulrich Drepper <drepper@cygnus.com> * sysdeps/libm-ieee754/w_gamma.c: If _LIB_VERSION is _SVID_ compute result as before last change. * sysdeps/libm-ieee754/w_gammaf.c: Likewise. * sysdeps/libm-ieee754/w_gammal.c: Likewise. 1997-06-16 23:37 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * sysdeps/libm-ieee754/s_remquo.c: Fix off-by-one when computing quotient. * sysdeps/libm-ieee754/s_remquof.c: Likewise. * sysdeps/libm-ieee754/s_remquol.c: Likewise. * sysdeps/m68k/fpu/s_remquo.c: Remove FIXME and special case for quotient. * sysdeps/libm-ieee754/w_gamma.c: Add missing call to exp function. Don't use global signgam. * sysdeps/libm-ieee754/w_gammaf.c: Likewise. * sysdeps/libm-ieee754/w_gammal.c: Likewise. * math/Makefile (libm-calls): Remove w_gamma_r. * sysdeps/libm-ieee754/w_gamma_r.c: Remove file. * sysdeps/libm-ieee754/w_gammaf_r.c: Remove file. * sysdeps/libm-ieee754/w_gammal_r.c: Remove file. * math/libm-test.c (atanh_test): Declare x only if needed. (signbit_test): Fix typo. (gamma_test): Check whether function is implemented. Add epsilons. (lgamma_test): Likewise. (fmod_test): Add epsilons. (exp2_test): Use right function for existence test. 1997-06-07 09:20 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * sysdeps/powerpc/Dist: Add fenv_const.c. * sysdeps/unix/sysv/linux/Dist: Add net/if_slip.h. * sysdeps/unix/sysv/linux/powerpc/Dist: Add init-first.h and syscall.h. * sysdeps/unix/sysv/linux/sparc/Dist: Add init-first.h. * string/Makefile (distribute): Add tst-svc.expect. * nis/Makefile (distribute): Add nis_intern.h and Banner. * elf/Makefile (distribute): Add dl-hash.h. * Rules (subdir_echo-distinfo): Add headers from $(distribute). * login/Makefile (others): Add utmpdump. * sysdeps/unix/sysv/linux/Makefile (sysdep_headers): Add net/if_slip.h. * manual/Makefile (dir-add.texi): Also look in indirectly included files. 1997-06-16 23:15 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * sysdeps/unix/sysv/linux/configure.in: Remove commands to generate stdio_lim.h. * sysdeps/unix/sysv/linux/mk-stdiolim.c: Remove. * sysdeps/unix/sysv/linux/Makefile: Add rules to generate stdio_lim.h here. (common-generated): Add generated files. (inhibit-stdio_lim): Define. * sysdeps/posix/Makefile [$(inhibit-stdio_lim)=yes]: Disable rules to generate stdio_lim.h. * sysdeps/unix/sysv/linux/Makefile: Suppress inclusion of dependecy files if no_deps is set. ($(objpfx)syscall-%.d): Add header file as target to dependency generation. 1997-06-14 19:19 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * sysdeps/unix/sysv/linux/arm/Dist: New file. 1997-06-14 17:59 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * extra-lib.mk (others): Depend on versioned shared library, not the unversioned one. * Makerules (build-shlib): Don't make the version link here. ($(common-objpfx)libc.so$(libc.so-version)): New rule for libc version link. 1997-06-16 03:07 Ulrich Drepper <drepper@cygnus.com> * sysdeps/libm-ieee754/k_standard.c: Undo change of Tue Aug 6 01:13:56 1996. * argp/argp-help.c (argp_args_usage): Supply correct argp to filter_doc. * argp/argp-help.c (hol_add_cluster): Initialize CL->depth. * argp/argp-help.c (_help): Supply STATE to argp_args_usage. * argp/argp.h (ARGP_KEY_HELP_ARGS_DOC): New macro. * argp/argp-fmtstream.c: Add casts to prevent warnings. * argp/argp.h (OPTION_NO_USAGE): New macro. * argp/argp-help.c (usage_long_opt, usage_argful_short_opt, * argp/argp-fmtstream.c (__argp_fmtstream_update): Account for case * argp/argp-help.c <stddef.h>: New include. * argp/argp.h (argp_state_help, __argp_state_help, argp_usage, * argp/argp.h (argp_program_bug_address): Make const. * argp/argp-parse.c (argp_default_parser): Set STATE->name for OPT_PROGNAME. * argp/argp-help.c (__argp_error, __argp_failure, __argp_state_help): * argp/argp-parse.c (parser_init): Set PARSER->state.flags.
Diffstat (limited to 'sysdeps/libm-i387/e_scalb.S')
-rw-r--r-- | sysdeps/libm-i387/e_scalb.S | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/sysdeps/libm-i387/e_scalb.S b/sysdeps/libm-i387/e_scalb.S index 427a3b905e..790f1c1d56 100644 --- a/sysdeps/libm-i387/e_scalb.S +++ b/sysdeps/libm-i387/e_scalb.S @@ -1,16 +1,94 @@ /* * Written by J.T. Conklin <jtc@netbsd.org>. * Public domain. + * + * Correct handling of y==-inf <drepper@gnu> */ #include <machine/asm.h> RCSID("$NetBSD: e_scalb.S,v 1.4 1995/05/08 23:49:52 jtc Exp $") +#ifdef __ELF__ + .section .rodata +#else + .text +#endif + + .align ALIGNARG(4) + ASM_TYPE_DIRECTIVE(zero_nan,@object) +zero_nan: + .double 0.0 +nan: .byte 0, 0, 0, 0, 0, 0, 0xff, 0x7f +minus_zero: + .byte 0, 0, 0, 0, 0, 0, 0, 0x80 + .byte 0, 0, 0, 0, 0, 0, 0xff, 0x7f + ASM_SIZE_DIRECTIVE(zero_nan) + + +#ifdef PIC +#define MO(op) op##@GOTOFF(%ecx) +#define MOX(op,x,f) op##@GOTOFF(%ecx,x,f) +#else +#define MO(op) op +#define MOX(op,x,f) op(,x,f) +#endif + + ENTRY(__ieee754_scalb) fldl 12(%esp) + fxam + fnstsw fldl 4(%esp) + andl $0x4700, %eax + cmpl $0x0700, %eax + je 1f + andl $0x4500, %eax + cmpl $0x0100, %eax + je 2f + fxam + fnstsw + andl $0x4500, %eax + cmpl $0x0100, %eax + je 2f + fld %st(1) + frndint + fcomp %st(2) + fnstsw + sahf + jne 2f fscale fstp %st(1) ret + + /* y is -inf */ +1: fxam +#ifdef PIC + call 1f +1: popl %ecx + addl $_GLOBAL_OFFSET_TABLE_+[.-1b], %ecx +#endif + fnstsw + movl 8(%esp), %edx + shrl $5, %eax + fstp %st(1) + andl $0x80000000, %edx + andl $8, %eax + fstp %st(1) + shrl $27, %edx + addl %edx, %eax + fldl MOX(zero_nan, %eax, 1) + ret + + /* The result is NaN, but we must not raise an exception. + So use a variable. */ +2: fstp %st + fstp %st +#ifdef PIC + call 1f +1: popl %ecx + addl $_GLOBAL_OFFSET_TABLE_+[.-1b], %ecx +#endif + fldl MO(nan) + ret END(__ieee754_scalb) |