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2020-06-19ia64: Use generic exp10fAdhemerval Zanella
The generic implementation is slight worse (Itanium(R) Processor 9020): Before new code: "exp10f": { "workload-spec2017.wrf (adapted)": { "duration": 3.61582e+08, "iterations": 2.384e+07, "reciprocal-throughput": 14.8334, "latency": 15.5006, "max-throughput": 6.74153e+07, "min-throughput": 6.45136e+07 } } With new code: "exp10f": { "workload-spec2017.wrf (adapted)": { "duration": 3.85549e+08, "iterations": 2.384e+07, "reciprocal-throughput": 15.8391, "latency": 16.5056, "max-throughput": 6.31348e+07, "min-throughput": 6.05857e+07 } } However it fixes all the issues on both: math/test-float-exp10 math/test-float32-exp10 (all the issues wrong results for non default rounding modes). The existing ia64 libm interface uses matherrf and matherrl in addition to matherr for SVID error handling. However, there is no such error handling support for exp10f in ia64 libm. So replacing it with the generic implementation should be fine. Checked on ia64-linux-gnu.
2020-06-19New exp10f version without SVID compat wrapperAdhemerval Zanella
This patch changes the exp10f error handling semantics to only set errno according to POSIX rules. New symbol version is introduced at GLIBC_2.32. The old wrappers are kept for compat symbols. There are some outliers that need special handling: - ia64 provides an optimized implementation of exp10f that uses ia64 specific routines to set SVID compatibility. The new symbol version is aliased to the exp10f one. - m68k also provides an optimized implementation, and the new version uses it instead of the sysdeps/ieee754/flt32 one. - riscv and csky uses the generic template implementation that does not provide SVID support. For both cases a new exp10f version is not added, but rather the symbols version of the generic sysdeps/ieee754/flt32 is adjusted instead. Checked on aarch64-linux-gnu, x86_64-linux-gnu, i686-linux-gnu, powerpc64le-linux-gnu.
2020-04-08Update ia64 libm-test-ulpsAdhemerval Zanella
2020-03-19math: Remove inline math testsAdhemerval Zanella
With mathinline removal there is no need to keep building and testing inline math tests. The gen-libm-tests.py support to generate ULP_I_* is removed and all libm-test-ulps files are updated to longer have the i{float,double,ldouble} entries. The support for no-test-inline is also removed from both gen-auto-libm-tests and the auto-libm-test-out-* were regenerated. Checked on x86_64-linux-gnu and i686-linux-gnu.
2020-01-01Update copyright dates with scripts/update-copyrights.Joseph Myers
2019-10-21Remove math-finite.hWilco Dijkstra
Remove math-finite.h redirections for math functions. Passes buildmanyglibc. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2019-09-07Prefer https to http for gnu.org and fsf.org URLsPaul Eggert
Also, change sources.redhat.com to sourceware.org. This patch was automatically generated by running the following shell script, which uses GNU sed, and which avoids modifying files imported from upstream: sed -ri ' s,(http|ftp)(://(.*\.)?(gnu|fsf|sourceware)\.org($|[^.]|\.[^a-z])),https\2,g s,(http|ftp)(://(.*\.)?)sources\.redhat\.com($|[^.]|\.[^a-z]),https\2sourceware.org\4,g ' \ $(find $(git ls-files) -prune -type f \ ! -name '*.po' \ ! -name 'ChangeLog*' \ ! -path COPYING ! -path COPYING.LIB \ ! -path manual/fdl-1.3.texi ! -path manual/lgpl-2.1.texi \ ! -path manual/texinfo.tex ! -path scripts/config.guess \ ! -path scripts/config.sub ! -path scripts/install-sh \ ! -path scripts/mkinstalldirs ! -path scripts/move-if-change \ ! -path INSTALL ! -path locale/programs/charmap-kw.h \ ! -path po/libc.pot ! -path sysdeps/gnu/errlist.c \ ! '(' -name configure \ -execdir test -f configure.ac -o -f configure.in ';' ')' \ ! '(' -name preconfigure \ -execdir test -f preconfigure.ac ';' ')' \ -print) and then by running 'make dist-prepare' to regenerate files built from the altered files, and then executing the following to cleanup: chmod a+x sysdeps/unix/sysv/linux/riscv/configure # Omit irrelevant whitespace and comment-only changes, # perhaps from a slightly-different Autoconf version. git checkout -f \ sysdeps/csky/configure \ sysdeps/hppa/configure \ sysdeps/riscv/configure \ sysdeps/unix/sysv/linux/csky/configure # Omit changes that caused a pre-commit check to fail like this: # remote: *** error: sysdeps/powerpc/powerpc64/ppc-mcount.S: trailing lines git checkout -f \ sysdeps/powerpc/powerpc64/ppc-mcount.S \ sysdeps/unix/sysv/linux/s390/s390-64/syscall.S # Omit change that caused a pre-commit check to fail like this: # remote: *** error: sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S: last line does not end in newline git checkout -f sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S
2019-02-27Add some spaces before '('.Joseph Myers
This patch fixes various places where a space should have been present before '(' in accordance with the GNU Coding Standards. Most but not all of the fixes in this patch are for calls to sizeof (but it's not exhaustive regarding such calls that should be fixed). Tested for x86_64, and with build-many-glibcs.py. * benchtests/bench-strcpy.c (do_test): Use space before '('. * benchtests/bench-string.h (cmdline_process_function): Likewise. * benchtests/bench-strlen.c (do_test): Likewise. (test_main): Likewise. * catgets/gencat.c (read_old): Likewise. * elf/cache.c (load_aux_cache): Likewise. * iconvdata/bug-iconv8.c (do_test): Likewise. * math/test-tgmath-ret.c (do_test): Likewise. * nis/nis_call.c (rec_dirsearch): Likewise. * nis/nis_findserv.c (__nis_findfastest_with_timeout): Likewise. * nptl/tst-audit-threads.c (do_test): Likewise. * nptl/tst-cancel4-common.h (set_socket_buffer): Likewise. * nss/nss_test1.c (init): Likewise. * nss/test-netdb.c (test_hosts): Likewise. * posix/execvpe.c (maybe_script_execute): Likewise. * stdio-common/tst-fmemopen4.c (do_test): Likewise. * stdio-common/tst-printf.c (do_test): Likewise. * stdio-common/vfscanf-internal.c (__vfscanf_internal): Likewise. * stdlib/fmtmsg.c (NKEYWORDS): Likewise. * stdlib/qsort.c (STACK_SIZE): Likewise. * stdlib/test-canon.c (do_test): Likewise. * stdlib/tst-swapcontext1.c (do_test): Likewise. * string/memcmp.c (OPSIZ): Likewise. * string/test-strcpy.c (do_test): Likewise. (do_random_tests): Likewise. * string/test-strlen.c (do_test): Likewise. (test_main): Likewise. * string/test-strrchr.c (do_test): Likewise. (do_random_tests): Likewise. * string/tester.c (test_memrchr): Likewise. (test_memchr): Likewise. * sysdeps/generic/memcopy.h (OPSIZ): Likewise. * sysdeps/generic/unwind-dw2.c (execute_stack_op): Likewise. * sysdeps/generic/unwind-pe.h (read_sleb128): Likewise. (read_encoded_value_with_base): Likewise. * sysdeps/hppa/dl-machine.h (elf_machine_runtime_setup): Likewise. * sysdeps/hppa/fpu/feupdateenv.c (__feupdateenv): Likewise. * sysdeps/ia64/fpu/sfp-machine.h (TI_BITS): Likewise. * sysdeps/mach/hurd/spawni.c (__spawni): Likewise. * sysdeps/posix/spawni.c (maybe_script_execute): Likewise. * sysdeps/powerpc/fpu/tst-setcontext-fpscr.c (query_auxv): Likewise. * sysdeps/unix/sysv/linux/aarch64/bits/procfs.h (ELF_NGREG): Likewise. * sysdeps/unix/sysv/linux/arm/bits/procfs.h (ELF_NGREG): Likewise. * sysdeps/unix/sysv/linux/arm/ioperm.c (init_iosys): Likewise. * sysdeps/unix/sysv/linux/csky/bits/procfs.h (ELF_NGREG): Likewise. * sysdeps/unix/sysv/linux/m68k/bits/procfs.h (ELF_NGREG): Likewise. * sysdeps/unix/sysv/linux/nios2/bits/procfs.h (ELF_NGREG): Likewise. * sysdeps/unix/sysv/linux/spawni.c (maybe_script_execute): Likewise. * sysdeps/unix/sysv/linux/x86/bits/procfs.h (ELF_NGREG): Likewise. * sysdeps/unix/sysv/linux/x86/bits/sigcontext.h (FP_XSTATE_MAGIC2_SIZE): Likewise. * sysdeps/x86/fpu/sfp-machine.h (TI_BITS): Likewise. * time/test_time.c (main): Likewise.
2019-01-12Fix a few typos in commentsDmitry V. Levin
Apply the following spelling fixes: $ git grep -F -l 'relevent' | xargs sed -i 's/relevent/relevant/g' $ git grep -F -l 'checked fot' | xargs sed -i 's/checked fot/checked for/g' $ git grep -F -l "could't" | xargs sed -i "s/could't/couldn't/g" $ git grep -F -l 'wheter' | grep -Fv ChangeLog.old | xargs sed -i 's/wheter/whether/g' $ git grep -F -l 'neccessary' | grep -Fv ChangeLog.old | xargs sed -i 's/neccessary/necessary/g' $ git grep -F -l 'ouput' | xargs sed -i 's/ouput/output/g' $ git grep -F -w -l 'iput' | xargs sed -i 's/iput/input/g' This is inspired by a gnulib bug report at https://lists.gnu.org/archive/html/bug-gnulib/2019-01/msg00081.html * argp/argp-help.c: Fix typo in comment. * misc/sys/cdefs.h: Likewise. * posix/regexec.c (sift_states_iter_mb): Likewise. * socket/sockatmark.c: Likewise. * socket/sys/socket.h: Likewise. * sysdeps/ia64/fpu/libm_sincos_large.S: Likewise. * sysdeps/ia64/fpu/libm_sincosl.S: Likewise. * sysdeps/ia64/fpu/s_cosl.S: Likewise. * sysdeps/ieee754/dbl-64/k_rem_pio2.c: Likewise. * sysdeps/unix/sockatmark.c: Likewise. * time/strptime_l.c: Likewise.
2019-01-01Update copyright dates with scripts/update-copyrights.Joseph Myers
* All files with FSF copyright notices: Update copyright dates using scripts/update-copyrights. * locale/programs/charmap-kw.h: Regenerated. * locale/programs/locfile-kw.h: Likewise.
2018-11-21Remove the error handling wrapper from powSzabolcs Nagy
Introduce new pow symbol version that doesn't do SVID compatible error handling. The standard errno and fp exception based error handling is inline in the new code and does not have significant overhead. The wrapper is disabled for sysdeps/ieee754/dbl-64 by using empty w_pow.c and enabled for targets with their own pow implementation or ifunc dispatch on __ieee754_pow by including math/w_pow.c. The compatibility symbol version still uses the wrapper with SVID error handling around the new code. There is no new symbol version nor compatibility code on !LIBM_SVID_COMPAT targets (e.g. riscv). On targets where previously powl was an alias of pow, now it points to the compatibility symbol with the wrapper, because it still need the SVID compatible error handling. This affects NO_LONG_DOUBLE (e.g. arm) and LONG_DOUBLE_COMPAT (e.g. alpha) targets as well. The __pow_finite symbol is now an alias of pow. Both __pow_finite and pow set errno and thus not const functions. The ia64 asm is changed so the compat and new symbol versions map to the same address. On x86_64 #include <math.h> was added before macro definitions that may affect that header. Tested with build-many-glibcs.py. * math/Versions (GLIBC_2.29): Add pow. * math/w_pow_compat.c (__pow_compat): Change to versioned compat symbol. * math/w_pow.c: New file. * sysdeps/i386/fpu/w_pow.c: New file. * sysdeps/ia64/fpu/e_pow.S: Add versioned symbols. * sysdeps/ieee754/dbl-64/e_pow.c (__ieee754_pow): Rename to __pow and add necessary aliases. * sysdeps/ieee754/dbl-64/w_pow.c: New file. * sysdeps/m68k/m680x0/fpu/w_pow.c: New file. * sysdeps/mach/hurd/i386/libm.abilist: Update. * sysdeps/unix/sysv/linux/aarch64/libm.abilist: Update. * sysdeps/unix/sysv/linux/alpha/libm.abilist: Update. * sysdeps/unix/sysv/linux/arm/libm.abilist: Update. * sysdeps/unix/sysv/linux/hppa/libm.abilist: Update. * sysdeps/unix/sysv/linux/i386/libm.abilist: Update. * sysdeps/unix/sysv/linux/ia64/libm.abilist: Update. * sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist: Update. * sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Update. * sysdeps/unix/sysv/linux/microblaze/libm.abilist: Update. * sysdeps/unix/sysv/linux/mips/mips32/libm.abilist: Update. * sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Update. * sysdeps/unix/sysv/linux/nios2/libm.abilist: Update. * sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist: Update. * sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist: Update. * sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist: Update. * sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist: Update. * sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Update. * sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Update. * sysdeps/unix/sysv/linux/sh/libm.abilist: Update. * sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Update. * sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Update. * sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Update. * sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Update. * sysdeps/x86_64/fpu/multiarch/e_pow-fma.c (__ieee754_pow): Rename to __pow. * sysdeps/x86_64/fpu/multiarch/e_pow-fma4.c (__ieee754_pow): Likewise. * sysdeps/x86_64/fpu/multiarch/e_pow.c (__ieee754_pow): Likewise. * sysdeps/x86_64/fpu/multiarch/w_pow.c: New file.
2018-11-21Remove the error handling wrapper from log2Szabolcs Nagy
Introduce new log2 symbol version that doesn't do SVID compatible error handling. The standard errno and fp exception based error handling is inline in the new code and does not have significant overhead. The wrapper is disabled for sysdeps/ieee754/dbl-64 by using empty w_log2.c and enabled for targets with their own log2 implementation by including math/w_log2.c. The compatibility symbol version still uses the wrapper with SVID error handling around the new code. There is no new symbol version nor compatibility code on !LIBM_SVID_COMPAT targets (e.g. riscv). On targets where previously log2l was an alias of log2, now it points to the compatibility symbol with the wrapper, because it still need the SVID compatible error handling. This affects NO_LONG_DOUBLE (e.g. arm) and LONG_DOUBLE_COMPAT (e.g. alpha) targets as well. The __log2_finite symbol is now an alias of log2. Both __log2_finite and log2 set errno and thus not const functions. The ia64 asm is changed so the compat and new symbol versions map to the same address. Tested with build-many-glibcs.py. * math/Versions (GLIBC_2.29): Add log2. * math/w_log2_compat.c (__log2_compat): Change to versioned compat symbol. * math/w_log2.c: New file. * sysdeps/i386/fpu/w_log2.c: New file. * sysdeps/ia64/fpu/e_log2.S: Add versioned symbols. * sysdeps/ieee754/dbl-64/e_log2.c (__ieee754_log2): Rename to __log2 and add necessary aliases. * sysdeps/ieee754/dbl-64/w_log2.c: New file. * sysdeps/m68k/m680x0/fpu/w_log2.c: New file. * sysdeps/mach/hurd/i386/libm.abilist: Update. * sysdeps/unix/sysv/linux/aarch64/libm.abilist: Update. * sysdeps/unix/sysv/linux/alpha/libm.abilist: Update. * sysdeps/unix/sysv/linux/arm/libm.abilist: Update. * sysdeps/unix/sysv/linux/hppa/libm.abilist: Update. * sysdeps/unix/sysv/linux/i386/libm.abilist: Update. * sysdeps/unix/sysv/linux/ia64/libm.abilist: Update. * sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist: Update. * sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Update. * sysdeps/unix/sysv/linux/microblaze/libm.abilist: Update. * sysdeps/unix/sysv/linux/mips/mips32/libm.abilist: Update. * sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Update. * sysdeps/unix/sysv/linux/nios2/libm.abilist: Update. * sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist: Update. * sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist: Update. * sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist: Update. * sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist: Update. * sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Update. * sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Update. * sysdeps/unix/sysv/linux/sh/libm.abilist: Update. * sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Update. * sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Update. * sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Update. * sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Update.
2018-11-21Remove the error handling wrapper from logSzabolcs Nagy
Introduce new log symbol version that doesn't do SVID compatible error handling. The standard errno and fp exception based error handling is inline in the new code and does not have significant overhead. The wrapper is disabled for sysdeps/ieee754/dbl-64 by using empty w_log.c and enabled for targets with their own log implementation by including math/w_log.c. The compatibility symbol version still uses the wrapper with SVID error handling around the new code. There is no new symbol version nor compatibility code on !LIBM_SVID_COMPAT targets (e.g. riscv). On targets where previously logl was an alias of log, now it points to the compatibility symbol with the wrapper, because it still need the SVID compatible error handling. This affects NO_LONG_DOUBLE (e.g. arm) and LONG_DOUBLE_COMPAT (e.g. alpha) targets as well. The __log_finite symbol is now an alias of log. Both __log_finite and log set errno and thus not const functions. The ia64 asm is changed so the compat and new symbol versions map to the same address. On x86_64 #include <math.h> was added before macro definitions that may affect that header. Tested with build-many-glibcs.py. * math/Versions (GLIBC_2.29): Add log. * math/w_log_compat.c (__log_compat): Change to versioned compat symbol. * math/w_log.c: New file. * sysdeps/i386/fpu/w_log.c: New file. * sysdeps/ia64/fpu/e_log.S: Update. * sysdeps/ieee754/dbl-64/e_log.c (__ieee754_log): Rename to __log and add necessary aliases. * sysdeps/ieee754/dbl-64/w_log.c: New file. * sysdeps/m68k/m680x0/fpu/w_log.c: New file. * sysdeps/mach/hurd/i386/libm.abilist: Update. * sysdeps/unix/sysv/linux/aarch64/libm.abilist: Update. * sysdeps/unix/sysv/linux/alpha/libm.abilist: Update. * sysdeps/unix/sysv/linux/arm/libm.abilist: Update. * sysdeps/unix/sysv/linux/hppa/libm.abilist: Update. * sysdeps/unix/sysv/linux/i386/libm.abilist: Update. * sysdeps/unix/sysv/linux/ia64/libm.abilist: Update. * sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist: Update. * sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Update. * sysdeps/unix/sysv/linux/microblaze/libm.abilist: Update. * sysdeps/unix/sysv/linux/mips/mips32/libm.abilist: Update. * sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Update. * sysdeps/unix/sysv/linux/nios2/libm.abilist: Update. * sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist: Update. * sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist: Update. * sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist: Update. * sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist: Update. * sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Update. * sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Update. * sysdeps/unix/sysv/linux/sh/libm.abilist: Update. * sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Update. * sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Update. * sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Update. * sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Update. * sysdeps/x86_64/fpu/multiarch/e_log-avx.c (__ieee754_log): Rename to __log. * sysdeps/x86_64/fpu/multiarch/e_log-fma.c (__ieee754_log): Likewise. * sysdeps/x86_64/fpu/multiarch/e_log-fma4.c (__ieee754_log): Likewise. * sysdeps/x86_64/fpu/multiarch/e_log.c (__ieee754_log): Likewise. * sysdeps/x86_64/fpu/multiarch/w_log.c: New file.
2018-11-21Remove the error handling wrapper from exp and exp2Szabolcs Nagy
Introduce new exp and exp2 symbol version that don't do SVID compatible error handling. The standard errno and fp exception based error handling is inline in the new code and does not have significant overhead. The double precision wrappers are disabled for sysdeps/ieee754/dbl-64 by using empty w_exp.c and w_exp2.c files, the math/w_exp.c and math/w_exp2.c files use the wrapper template and can be included by targets that have their own exp and exp2 implementations or use ifunc on the glibc internal __ieee754_exp symbol. The compatibility symbol versions still use the wrapper with SVID error handling around the new code. There is no new symbol version nor compatibility code on !LIBM_SVID_COMPAT targets (e.g. riscv). On targets where previously expl and exp2l were aliases of exp and exp2, now they point to the compatibility symbols with the wrapper, because they still need the SVID compatible error handling. This affects NO_LONG_DOUBLE (e.g arm) and LONG_DOUBLE_COMPAT (e.g. alpha) targets as well. The _finite symbols are now aliases of the standard symbols (they have no performance advantage anymore). Both the standard symbols and _finite symbols set errno and thus not const functions. The ia64 asm is changed so the compat and new symbol versions map to the same address. On x86_64 #include <math.h> was added before macro definitions that may affect that header (the new macro name is __exp instead of __ieee754_exp which breaks some math.h macros). Tested with build-many-glibcs.py. * math/Versions (GLIBC_2.29): Add exp and exp2. * math/w_exp2_compat.c (__exp2_compat): Change to versioned compat symbol, handle NO_LONG_DOUBLE and LONG_DOUBLE_COMPAT explicitly. * math/w_exp_compat.c (__exp_compat): Likewise. * math/w_exp.c: New file. * math/w_exp2.c: New file. * sysdeps/i386/fpu/w_exp.c: New file. * sysdeps/i386/fpu/w_exp2.c: New file. * sysdeps/ia64/fpu/e_exp.S: Add versioned symbols. * sysdeps/ia64/fpu/e_exp2.S: Likewise. * sysdeps/ieee754/dbl-64/e_exp.c (__ieee754_exp): Rename to __exp and add necessary aliases. * sysdeps/ieee754/dbl-64/e_exp2.c (__ieee754_exp2): Rename to __exp2 and add necessary aliases. * sysdeps/ieee754/dbl-64/w_exp.c: New file. * sysdeps/ieee754/dbl-64/w_exp2.c: New file. * sysdeps/m68k/m680x0/fpu/w_exp.c: New file. * sysdeps/m68k/m680x0/fpu/w_exp2.c: New file. * sysdeps/mach/hurd/i386/libm.abilist: Update. * sysdeps/unix/sysv/linux/aarch64/libm.abilist: Update. * sysdeps/unix/sysv/linux/alpha/libm.abilist: Update. * sysdeps/unix/sysv/linux/arm/libm.abilist: Update. * sysdeps/unix/sysv/linux/hppa/libm.abilist: Update. * sysdeps/unix/sysv/linux/i386/libm.abilist: Update. * sysdeps/unix/sysv/linux/ia64/libm.abilist: Update. * sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist: Update. * sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Update. * sysdeps/unix/sysv/linux/microblaze/libm.abilist: Update. * sysdeps/unix/sysv/linux/mips/mips32/libm.abilist: Update. * sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Update. * sysdeps/unix/sysv/linux/nios2/libm.abilist: Update. * sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist: Update. * sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist: Update. * sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist: Update. * sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist: Update. * sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Update. * sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Update. * sysdeps/unix/sysv/linux/sh/libm.abilist: Update. * sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Update. * sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Update. * sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Update. * sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Update. * sysdeps/x86_64/fpu/multiarch/e_exp-avx.c (__exp1): Remove. (__ieee754_exp): Rename to __exp. * sysdeps/x86_64/fpu/multiarch/e_exp-fma.c (__exp1): Remove. (__ieee754_exp): Rename to __exp. * sysdeps/x86_64/fpu/multiarch/e_exp-fma4.c (__exp1): Remove. (__ieee754_exp): Rename to __exp. * sysdeps/x86_64/fpu/multiarch/e_exp.c (__ieee754_exp): Rename to __exp. * sysdeps/x86_64/fpu/multiarch/w_exp.c: New file.
2018-11-12Remove redundant macro definitions from ia64 sfp-machine.h.Joseph Myers
After the changes to use the copy attribute, building glibc for ia64 fails, even with older compilers, because sysdeps/ia64/fpu/sfp-machine.h has a definition of _strong_alias that now differs from the one in libc-symbols.h. That definition is a relic of this file coming from libgcc, as are some other such macro definitions in this file; in the glibc context, there is no need for those macros, and this patch removes them to fix the build. Tested with build-many-glibcs.py for ia64-linux-gnu. * sysdeps/ia64/fpu/sfp-machine.h (__LITTLE_ENDIAN): Remove. (__BIG_ENDIAN): Likewise. (__BYTE_ORDER): Likewise. (strong_alias): Likewise. (_strong_alias): Likewise.
2018-10-26i64: fix missing exp2f, log2f and powf symbols in libm.a [BZ #23822]Szabolcs Nagy
When new symbol versions were introduced without SVID compatible error handling the exp2f, log2f and powf symbols were accidentally removed from the ia64 lim.a. The regression was introduced by the commits f5f0f5265162fe6f4f238abcd3086985f7c38d6d New expf and exp2f version without SVID compat wrapper 72d3d281080be9f674982067d72874fd6cdb4b64 New symbol version for logf, log2f and powf without SVID compat With WEAK_LIBM_ENTRY(foo), there is a hidden __foo and weak foo symbol definition in both SHARED and !SHARED build. [BZ #23822] * sysdeps/ia64/fpu/e_exp2f.S (exp2f): Use WEAK_LIBM_ENTRY. * sysdeps/ia64/fpu/e_log2f.S (log2f): Likewise. * sysdeps/ia64/fpu/e_exp2f.S (powf): Likewise.
2018-09-28Remove unnecessary math_private.h includes.Joseph Myers
After my changes to move various macros, inlines and other content from math_private.h to more specific headers, many files including math_private.h no longer need to do so. Furthermore, since the optimized inlines of various functions have been moved to include/fenv.h or replaced by use of function names GCC inlines automatically, a missing math_private.h include where one is appropriate will reliably cause a build failure rather than possibly causing code to be less well optimized while still building successfully. Thus, this patch removes includes of math_private.h that are now unnecessary. In the case of two RISC-V files, the include is replaced by one of stdbool.h because the files in question were relying on math_private.h to get a definition of bool. Tested for x86_64 and x86, and with build-many-glibcs.py. * math/fromfp.h: Do not include <math_private.h>. * math/s_cacosh_template.c: Likewise. * math/s_casin_template.c: Likewise. * math/s_casinh_template.c: Likewise. * math/s_ccos_template.c: Likewise. * math/s_cproj_template.c: Likewise. * math/s_fdim_template.c: Likewise. * math/s_fmaxmag_template.c: Likewise. * math/s_fminmag_template.c: Likewise. * math/s_iseqsig_template.c: Likewise. * math/s_ldexp_template.c: Likewise. * math/s_nextdown_template.c: Likewise. * math/w_log1p_template.c: Likewise. * math/w_scalbln_template.c: Likewise. * sysdeps/aarch64/fpu/feholdexcpt.c: Likewise. * sysdeps/aarch64/fpu/fesetround.c: Likewise. * sysdeps/aarch64/fpu/fgetexcptflg.c: Likewise. * sysdeps/aarch64/fpu/ftestexcept.c: Likewise. * sysdeps/aarch64/fpu/s_llrint.c: Likewise. * sysdeps/aarch64/fpu/s_llrintf.c: Likewise. * sysdeps/aarch64/fpu/s_lrint.c: Likewise. * sysdeps/aarch64/fpu/s_lrintf.c: Likewise. * sysdeps/i386/fpu/s_atanl.c: Likewise. * sysdeps/i386/fpu/s_f32xaddf64.c: Likewise. * sysdeps/i386/fpu/s_f32xsubf64.c: Likewise. * sysdeps/i386/fpu/s_fdim.c: Likewise. * sysdeps/i386/fpu/s_logbl.c: Likewise. * sysdeps/i386/fpu/s_rintl.c: Likewise. * sysdeps/i386/fpu/s_significandl.c: Likewise. * sysdeps/ia64/fpu/s_matherrf.c: Likewise. * sysdeps/ia64/fpu/s_matherrl.c: Likewise. * sysdeps/ieee754/dbl-64/s_atan.c: Likewise. * sysdeps/ieee754/dbl-64/s_cbrt.c: Likewise. * sysdeps/ieee754/dbl-64/s_fma.c: Likewise. * sysdeps/ieee754/dbl-64/s_fmaf.c: Likewise. * sysdeps/ieee754/flt-32/s_cbrtf.c: Likewise. * sysdeps/ieee754/k_standardf.c: Likewise. * sysdeps/ieee754/k_standardl.c: Likewise. * sysdeps/ieee754/ldbl-128ibm/s_copysignl.c: Likewise. * sysdeps/ieee754/ldbl-64-128/s_finitel.c: Likewise. * sysdeps/ieee754/ldbl-64-128/s_fpclassifyl.c: Likewise. * sysdeps/ieee754/ldbl-64-128/s_isinfl.c: Likewise. * sysdeps/ieee754/ldbl-64-128/s_isnanl.c: Likewise. * sysdeps/ieee754/ldbl-64-128/s_signbitl.c: Likewise. * sysdeps/ieee754/ldbl-96/s_cbrtl.c: Likewise. * sysdeps/ieee754/ldbl-96/s_fma.c: Likewise. * sysdeps/ieee754/ldbl-96/s_fmal.c: Likewise. * sysdeps/ieee754/s_signgam.c: Likewise. * sysdeps/powerpc/power5+/fpu/s_modf.c: Likewise. * sysdeps/powerpc/power5+/fpu/s_modff.c: Likewise. * sysdeps/powerpc/power7/fpu/s_logbf.c: Likewise. * sysdeps/riscv/rv64/rvd/s_ceil.c: Likewise. * sysdeps/riscv/rv64/rvd/s_floor.c: Likewise. * sysdeps/riscv/rv64/rvd/s_nearbyint.c: Likewise. * sysdeps/riscv/rv64/rvd/s_round.c: Likewise. * sysdeps/riscv/rv64/rvd/s_roundeven.c: Likewise. * sysdeps/riscv/rv64/rvd/s_trunc.c: Likewise. * sysdeps/riscv/rvd/s_finite.c: Likewise. * sysdeps/riscv/rvd/s_fmax.c: Likewise. * sysdeps/riscv/rvd/s_fmin.c: Likewise. * sysdeps/riscv/rvd/s_fpclassify.c: Likewise. * sysdeps/riscv/rvd/s_isinf.c: Likewise. * sysdeps/riscv/rvd/s_isnan.c: Likewise. * sysdeps/riscv/rvd/s_issignaling.c: Likewise. * sysdeps/riscv/rvf/fegetround.c: Likewise. * sysdeps/riscv/rvf/feholdexcpt.c: Likewise. * sysdeps/riscv/rvf/fesetenv.c: Likewise. * sysdeps/riscv/rvf/fesetround.c: Likewise. * sysdeps/riscv/rvf/feupdateenv.c: Likewise. * sysdeps/riscv/rvf/fgetexcptflg.c: Likewise. * sysdeps/riscv/rvf/ftestexcept.c: Likewise. * sysdeps/riscv/rvf/s_ceilf.c: Likewise. * sysdeps/riscv/rvf/s_finitef.c: Likewise. * sysdeps/riscv/rvf/s_floorf.c: Likewise. * sysdeps/riscv/rvf/s_fmaxf.c: Likewise. * sysdeps/riscv/rvf/s_fminf.c: Likewise. * sysdeps/riscv/rvf/s_fpclassifyf.c: Likewise. * sysdeps/riscv/rvf/s_isinff.c: Likewise. * sysdeps/riscv/rvf/s_isnanf.c: Likewise. * sysdeps/riscv/rvf/s_issignalingf.c: Likewise. * sysdeps/riscv/rvf/s_nearbyintf.c: Likewise. * sysdeps/riscv/rvf/s_roundevenf.c: Likewise. * sysdeps/riscv/rvf/s_roundf.c: Likewise. * sysdeps/riscv/rvf/s_truncf.c: Likewise. * sysdeps/riscv/rv64/rvd/s_rint.c: Include <stdbool.h> instead of <math_private.h>. * sysdeps/riscv/rvf/s_rintf.c: Likewise.
2018-09-19Add new pow implementationSzabolcs Nagy
The algorithm is exp(y * log(x)), where log(x) is computed with about 1.3*2^-68 relative error (1.5*2^-68 without fma), returning the result in two doubles, and the exp part uses the same algorithm (and lookup tables) as exp, but takes the input as two doubles and a sign (to handle negative bases with odd integer exponent). The __exp1 internal symbol is no longer necessary. There is separate code path when fma is not available but the worst case error is about 0.54 ULP in both cases. The lookup table and consts for log are 4168 bytes. The .rodata+.text is decreased by 37908 bytes on aarch64. The non-nearest rounding error is less than 1 ULP. Improvements on Cortex-A72 compared to current glibc master: pow thruput: 2.40x in [0.01 11.1]x[0.01 11.1] pow latency: 1.84x in [0.01 11.1]x[0.01 11.1] Tested on aarch64-linux-gnu (defined __FP_FAST_FMA, TOINT_INTRINSICS) and arm-linux-gnueabihf (!defined __FP_FAST_FMA, !TOINT_INTRINSICS) and x86_64-linux-gnu (!defined __FP_FAST_FMA, !TOINT_INTRINSICS) and powerpc64le-linux-gnu (defined __FP_FAST_FMA, !TOINT_INTRINSICS) targets. * NEWS: Mention pow improvements. * math/Makefile (type-double-routines): Add e_pow_log_data. * sysdeps/generic/math_private.h (__exp1): Remove. * sysdeps/i386/fpu/e_pow_log_data.c: New file. * sysdeps/ia64/fpu/e_pow_log_data.c: New file. * sysdeps/ieee754/dbl-64/Makefile (CFLAGS-e_pow.c): Allow fma contraction. * sysdeps/ieee754/dbl-64/e_exp.c (__exp1): Remove. (exp_inline): Remove. (__ieee754_exp): Only single double input is handled. * sysdeps/ieee754/dbl-64/e_pow.c: Rewrite. * sysdeps/ieee754/dbl-64/e_pow_log_data.c: New file. * sysdeps/ieee754/dbl-64/math_config.h (issignaling_inline): Define. (__pow_log_data): Define. * sysdeps/ieee754/dbl-64/upow.h: Remove. * sysdeps/ieee754/dbl-64/upow.tbl: Remove. * sysdeps/m68k/m680x0/fpu/e_pow_log_data.c: New file. * sysdeps/x86_64/fpu/multiarch/Makefile (CFLAGS-e_pow-fma.c): Allow fma contraction. (CFLAGS-e_pow-fma4.c): Likewise.
2018-09-12Add new log2 implementationSzabolcs Nagy
Similar algorithm is used as in log: log2(2^k x) = k + log2(c) + log2(x/c) where the last term is approximated by a polynomial of x/c - 1, the first order coefficient is about 1/ln2 in this case. There is separate code path when fma instruction is not available for computing x/c - 1 precisely, for which the table size is doubled. The worst case error is 0.547 ULP (0.55 without fma), the read only global data size is 1168 bytes (2192 without fma) on aarch64. The non-nearest rounding error is less than 1 ULP. Improvements on Cortex-A72 compared to current glibc master: log2 thruput: 2.00x in [0.01 11.1] log2 latency: 2.04x in [0.01 11.1] log2 thruput: 2.17x in [0.999 1.001] log2 latency: 2.88x in [0.999 1.001] Tested on aarch64-linux-gnu (defined __FP_FAST_FMA) arm-linux-gnueabihf (!defined __FP_FAST_FMA) x86_64-linux-gnu (!defined __FP_FAST_FMA) powerpc64le-linxu-gnu (defined __FP_FAST_FMA) targets. * NEWS: Mention log2 improvements. * math/Makefile (type-double-routines): Add e_log2_data. * sysdeps/i386/fpu/e_log2_data.c: New file. * sysdeps/ia64/fpu/e_log2_data.c: New file. * sysdeps/ieee754/dbl-64/e_log2.c: Rewrite. * sysdeps/ieee754/dbl-64/e_log2_data.c: New file. * sysdeps/ieee754/dbl-64/math_config.h (__log2_data): Add. * sysdeps/ieee754/dbl-64/wordsize-64/e_log2.c: Remove. * sysdeps/m68k/m680x0/fpu/e_log2_data.c: New file.
2018-09-12Add new log implementationSzabolcs Nagy
Optimized log using carefully generated lookup table with 1/c and log(c) values for small intervalls around 1. The log(c) is very near a double precision value, it has about 62 bits precision. The algorithm is log(2^k x) = k log(2) + log(c) + log(x/c), where the last term is approximated by a polynomial of x/c - 1. Near 1 a single polynomial of x - 1 is used. There is separate code path when fma instruction is not available for computing x/c - 1 precisely, in which case the table size is doubled. The code uses __builtin_fma under __FP_FAST_FMA to ensure it is inlined as an instruction. With the default configuration settings the worst case error is 0.519 ULP (and 0.520 without fma), the rodata size is 2192 bytes (4240 without fma). The non-nearest rounding error is less than 1 ULP. Improvements on Cortex-A72 compared to current glibc master: log thruput: 3.28x in [0.01 11.1] log latency: 2.23x in [0.01 11.1] log thruput: 1.56x in [0.999 1.001] log latency: 1.57x in [0.999 1.001] Tested on aarch64-linux-gnu (defined __FP_FAST_FMA) arm-linux-gnueabihf (!defined __FP_FAST_FMA) x86_64-linux-gnu (!defined __FP_FAST_FMA) powerpc64le-linux-gnu (defined __FP_FAST_FMA) targets. * NEWS: Mention log improvement. * math/Makefile (type-double-routines): Add e_log_data. * sysdeps/i386/fpu/e_log_data.c: New file. * sysdeps/ia64/fpu/e_log_data.c: New file. * sysdeps/ieee754/dbl-64/e_log.c: Rewrite. * sysdeps/ieee754/dbl-64/e_log_data.c: New file. * sysdeps/ieee754/dbl-64/math_config.h (__log_data): Add. * sysdeps/ieee754/dbl-64/ulog.h: Remove. * sysdeps/ieee754/dbl-64/ulog.tbl: Remove. * sysdeps/m68k/m680x0/fpu/e_log_data.c: New file.
2018-09-05Add new exp and exp2 implementationsSzabolcs Nagy
Optimized exp and exp2 implementations using a lookup table for fractional powers of 2. There are several variants, see e_exp_data.c, they can be selected by modifying math_config.h allowing different tradeoffs. The default selection should be acceptable as generic libm code. Worst case error is 0.509 ULP for exp and 0.507 ULP for exp2, on aarch64 the rodata size is 2160 bytes, shared between exp and exp2. On aarch64 .text + .rodata size decreased by 24912 bytes. The non-nearest rounding error is less than 1 ULP even on targets without efficient round implementation (although the error rate is higher in that case). Targets with single instruction, rounding mode independent, to nearest integer rounding and conversion can use them by setting TOINT_INTRINSICS and adding the necessary code to their math_private.h. The __exp1 code uses the same algorithm, so the error bound of pow increased a bit. New double precision error handling code was added following the style of the single precision error handling code. Improvements on Cortex-A72 compared to current glibc master: exp thruput: 1.61x in [-9.9 9.9] exp latency: 1.53x in [-9.9 9.9] exp thruput: 1.13x in [0.5 1] exp latency: 1.30x in [0.5 1] exp2 thruput: 2.03x in [-9.9 9.9] exp2 latency: 1.64x in [-9.9 9.9] For small (< 1) inputs the current exp code uses a separate algorithm so the speed up there is less. Was tested on aarch64-linux-gnu (TOINT_INTRINSICS, fma contraction) and arm-linux-gnueabihf (!TOINT_INTRINSICS, no fma contraction) and x86_64-linux-gnu (!TOINT_INTRINSICS, no fma contraction) and powerpc64le-linux-gnu (!TOINT_INTRINSICS, fma contraction) targets, only non-nearest rounding ulp errors increase and they are within acceptable bounds (ulp updates are in separate patches). * NEWS: Mention exp and exp2 improvements. * math/Makefile (libm-support): Remove t_exp. (type-double-routines): Add math_err and e_exp_data. * sysdeps/aarch64/libm-test-ulps: Update. * sysdeps/arm/libm-test-ulps: Update. * sysdeps/i386/fpu/e_exp_data.c: New file. * sysdeps/i386/fpu/math_err.c: New file. * sysdeps/i386/fpu/t_exp.c: Remove. * sysdeps/ia64/fpu/e_exp_data.c: New file. * sysdeps/ia64/fpu/math_err.c: New file. * sysdeps/ia64/fpu/t_exp.c: Remove. * sysdeps/ieee754/dbl-64/e_exp.c: Rewrite. * sysdeps/ieee754/dbl-64/e_exp2.c: Rewrite. * sysdeps/ieee754/dbl-64/e_exp_data.c: New file. * sysdeps/ieee754/dbl-64/e_pow.c (__ieee754_pow): Update error bound. * sysdeps/ieee754/dbl-64/eexp.tbl: Remove. * sysdeps/ieee754/dbl-64/math_config.h: New file. * sysdeps/ieee754/dbl-64/math_err.c: New file. * sysdeps/ieee754/dbl-64/t_exp.c: Remove. * sysdeps/ieee754/dbl-64/t_exp2.h: Remove. * sysdeps/ieee754/dbl-64/uexp.h: Remove. * sysdeps/ieee754/dbl-64/uexp.tbl: Remove. * sysdeps/m68k/m680x0/fpu/e_exp_data.c: New file. * sysdeps/m68k/m680x0/fpu/math_err.c: New file. * sysdeps/m68k/m680x0/fpu/t_exp.c: Remove. * sysdeps/powerpc/fpu/libm-test-ulps: Update. * sysdeps/x86_64/fpu/libm-test-ulps: Update.
2018-08-24Remove unused math filesWilco Dijkstra
Remove empty files due to the sin/cos improvements: k_sinf.c, k_cosf.c, k_cos.c, k_sin.c. After the tanf change s_rem_pio2f.c and k_rem_pio2f.c (and the ia64, m68k and powerpc equivalents) are no longer used, so remove them. All e_rem_pio2.c files were already empty or commented out, so remove them too. Passes build-many-glibcs. * math/Makefile: Remove empty files k_sin(f).c, k_cos(f).c. Remove unused files e_rem_pio2(f).c, k_rem_pio2f.c. * sysdeps/i386/fpu/e_rem_pio2.c: Delete file. * sysdeps/ia64/fpu/e_rem_pio2.c: Likewise. * sysdeps/ia64/fpu/e_rem_pio2f.c: Likewise. * sysdeps/ia64/fpu/k_rem_pio2f.c: Likewise. * sysdeps/ieee754/dbl-64/e_rem_pio2.c: Likewise. * sysdeps/ieee754/dbl-64/k_cos.c: Likewise. * sysdeps/ieee754/dbl-64/k_sin.c: Likewise. * sysdeps/ieee754/flt-32/e_rem_pio2f.c: Likewise. * sysdeps/ieee754/flt-32/k_cosf.c: Likewise. * sysdeps/ieee754/flt-32/k_rem_pio2f.c: Likewise. * sysdeps/ieee754/flt-32/k_sinf.c: Likewise. * sysdeps/m68k/m680x0/fpu/e_rem_pio2.c: Likewise * sysdeps/m68k/m680x0/fpu/e_rem_pio2f.c: Likewise * sysdeps/m68k/m680x0/fpu/k_rem_pio2f.c: Likewise * sysdeps/powerpc/fpu/e_rem_pio2f.c: Likewise. * sysdeps/powerpc/fpu/k_rem_pio2f.c: Likewise.
2018-08-10Improve performance of sincosfWilco Dijkstra
This patch is a complete rewrite of sincosf. The new version is significantly faster, as well as simple and accurate. The worst-case ULP is 0.5607, maximum relative error is 0.5303 * 2^-23 over all 4 billion inputs. In non-nearest rounding modes the error is 1ULP. The algorithm uses 3 main cases: small inputs which don't need argument reduction, small inputs which need a simple range reduction and large inputs requiring complex range reduction. The code uses approximate integer comparisons to quickly decide between these cases. The small range reducer uses a single reduction step to handle values up to 120.0. It is fastest on targets which support inlined round instructions. The large range reducer uses integer arithmetic for simplicity. It does a 32x96 bit multiply to compute a 64-bit modulo result. This is more than accurate enough to handle the worst-case cancellation for values close to an integer multiple of PI/4. It could be further optimized, however it is already much faster than necessary. sincosf throughput gains on Cortex-A72: * |x| < 0x1p-12 : 1.6x * |x| < M_PI_4 : 1.7x * |x| < 2 * M_PI: 1.5x * |x| < 120.0 : 1.8x * |x| < Inf : 2.3x * math/Makefile: Add s_sincosf_data.c. * sysdeps/ia64/fpu/s_sincosf_data.c: New file. * sysdeps/ieee754/flt-32/s_sincosf.h (abstop12): Add new function. (sincosf_poly): Likewise. (reduce_small): Likewise. (reduce_large): Likewise. * sysdeps/ieee754/flt-32/s_sincosf.c (sincosf): Rewrite. * sysdeps/ieee754/flt-32/s_sincosf_data.c: New file with sincosf data. * sysdeps/m68k/m680x0/fpu/s_sincosf_data.c: New file. * sysdeps/x86_64/fpu/s_sincosf_data.c: New file.
2018-02-15Remove mplog and mpexpWilco Dijkstra
Remove the now unused mplog and mpexp files. * math/Makefile: Remove mpexp.c and mplog.c * sysdeps/i386/fpu/mpexp.c: Delete file. * sysdeps/i386/fpu/mplog.c: Likewise. * sysdeps/ia64/fpu/mpexp.c: Likewise. * sysdeps/ia64/fpu/mplog.c: Likewise. * sysdeps/ieee754/dbl-64/e_exp.c: Remove mention of mpexp and mplog. * sysdeps/ieee754/dbl-64/mpa.h (__pow_mp): Remove unused function. * sysdeps/ieee754/dbl-64/mpexp.c: Delete file. * sysdeps/ieee754/dbl-64/mplog.c: Likewise. * sysdeps/m68k/m680x0/fpu/mpexp.c: Likewise. * sysdeps/m68k/m680x0/fpu/mplog.c: Likewise. * sysdeps/x86_64/fpu/multiarch/Makefile: Remove mpexp* and mplog*. * sysdeps/x86_64/fpu/multiarch/e_log-avx.c: Remove unused defines. * sysdeps/x86_64/fpu/multiarch/e_log-fma.c: Likewise. * sysdeps/x86_64/fpu/multiarch/e_log-fma4.c: Likewise. * sysdeps/x86_64/fpu/multiarch/mpexp-avx.c: Delete file. * sysdeps/x86_64/fpu/multiarch/mpexp-fma.c: Likewise. * sysdeps/x86_64/fpu/multiarch/mpexp-fma4.c: Likewise. * sysdeps/x86_64/fpu/multiarch/mplog-avx.c: Likewise. * sysdeps/x86_64/fpu/multiarch/mplog-fma.c: Likewise. * sysdeps/x86_64/fpu/multiarch/mplog-fma4.c: Likewise.
2018-02-12Remove slow paths from expSzabolcs Nagy
Remove the __slowexp code, so exp is no longer correctly rounded. The result is computed to about 70 bits precision so the worst case ulp error is about 0.500007 in nearest rounding mode. * manual/probes.texi: Remove slowexp probes. * math/Makefile: Remove slowexp. * sysdeps/generic/math_private.h (__slowexp): Remove. * sysdeps/ieee754/dbl-64/e_exp.c (__ieee754_exp): Remove __slowexp and document error bounds. * sysdeps/i386/fpu/slowexp.c: Remove. * sysdeps/ia64/fpu/slowexp.c: Remove. * sysdeps/ieee754/dbl-64/slowexp.c: Remove. * sysdeps/ieee754/dbl-64/uexp.h (err_0): Remove. * sysdeps/m68k/m680x0/fpu/slowexp.c: Remove. * sysdeps/powerpc/power4/fpu/Makefile (CPPFLAGS-slowexp.c): Remove. * sysdeps/x86_64/fpu/multiarch/Makefile: Remove slowexp-fma. * sysdeps/x86_64/fpu/multiarch/e_exp-avx.c (__slowexp): Remove. * sysdeps/x86_64/fpu/multiarch/e_exp-fma.c (__slowexp): Remove. * sysdeps/x86_64/fpu/multiarch/e_exp-fma4.c (__slowexp): Remove. * sysdeps/x86_64/fpu/multiarch/slowexp-avx.c: Remove. * sysdeps/x86_64/fpu/multiarch/slowexp-fma.c: Remove. * sysdeps/x86_64/fpu/multiarch/slowexp-fma4.c: Remove.
2018-02-12Remove slow paths from powWilco Dijkstra
Remove the slow paths from pow. Like several other double precision math functions, pow is exactly rounded. This is not required from math functions and causes major overheads as it requires multiple fallbacks using higher precision arithmetic if a result is close to 0.5ULP. Ridiculous slowdowns of up to 100000x have been reported when the highest precision path triggers. All GLIBC math tests pass on AArch64 and x64 (with ULP of pow set to 1). The worst case error is ~0.506ULP. A simple test over a few hundred million values shows pow is 10% faster on average. This fixes BZ #13932. [BZ #13932] * sysdeps/ieee754/dbl-64/uexp.h (err_1): Remove. * benchtests/pow-inputs: Update comment for slow path cases. * manual/probes.texi (slowpow_p10): Delete removed probe. (slowpow_p10): Likewise. * math/Makefile: Remove halfulp.c and slowpow.c. * sysdeps/aarch64/libm-test-ulps: Set ULP of pow to 1. * sysdeps/generic/math_private.h (__exp1): Remove error argument. (__halfulp): Remove. (__slowpow): Remove. * sysdeps/i386/fpu/halfulp.c: Delete file. * sysdeps/i386/fpu/slowpow.c: Likewise. * sysdeps/ia64/fpu/halfulp.c: Likewise. * sysdeps/ia64/fpu/slowpow.c: Likewise. * sysdeps/ieee754/dbl-64/e_exp.c (__exp1): Remove error argument, improve comments and add error analysis. * sysdeps/ieee754/dbl-64/e_pow.c (__ieee754_pow): Add error analysis. (power1): Remove function: (log1): Remove error argument, add error analysis. (my_log2): Remove function. * sysdeps/ieee754/dbl-64/halfulp.c: Delete file. * sysdeps/ieee754/dbl-64/slowpow.c: Likewise. * sysdeps/m68k/m680x0/fpu/halfulp.c: Likewise. * sysdeps/m68k/m680x0/fpu/slowpow.c: Likewise. * sysdeps/powerpc/power4/fpu/Makefile: Remove CPPFLAGS-slowpow.c. * sysdeps/x86_64/fpu/libm-test-ulps: Set ULP of pow to 1. * sysdeps/x86_64/fpu/multiarch/Makefile: Remove slowpow-fma.c, slowpow-fma4.c, halfulp-fma.c, halfulp-fma4.c. * sysdeps/x86_64/fpu/multiarch/e_pow-fma.c (__slowpow): Remove define. * sysdeps/x86_64/fpu/multiarch/e_pow-fma4.c (__slowpow): Likewise. * sysdeps/x86_64/fpu/multiarch/halfulp-fma.c: Delete file. * sysdeps/x86_64/fpu/multiarch/halfulp-fma4.c: Likewise. * sysdeps/x86_64/fpu/multiarch/slowpow-fma.c: Likewise. * sysdeps/x86_64/fpu/multiarch/slowpow-fma4.c: Likewise.
2018-01-01Update copyright dates with scripts/update-copyrights.Joseph Myers
* All files with FSF copyright notices: Update copyright dates using scripts/update-copyrights. * locale/programs/charmap-kw.h: Regenerated. * locale/programs/locfile-kw.h: Likewise.
2017-12-19Revert exp reimplementation (causes test failures).Joseph Myers
Revert: 2017-12-19 Joseph Myers <joseph@codesourcery.com> * sysdeps/x86_64/fpu/libm-test-ulps: Update. 2017-12-19 Patrick McGehearty <patrick.mcgehearty@oracle.com> * sysdeps/ieee754/dbl-64/e_exp.c: Include <math-svid-compat.h> and <errno.h>. Include "eexp.tbl". (half): New constant. (one): Likewise. (__ieee754_exp): Rewrite. (__slowexp): Remove prototype. * sysdeps/ieee754/dbl-64/eexp.tbl: New file. * sysdeps/ieee754/dbl-64/slowexp.c: Remove file. * sysdeps/i386/fpu/slowexp.c: Likewise. * sysdeps/ia64/fpu/slowexp.c: Likewise. * sysdeps/m68k/m680x0/fpu/slowexp.c: Likewise. * sysdeps/x86_64/fpu/multiarch/slowexp-avx.c: Likewise. * sysdeps/x86_64/fpu/multiarch/slowexp-fma.c: Likewise. * sysdeps/x86_64/fpu/multiarch/slowexp-fma4.c: Likewise. * sysdeps/generic/math_private.h (__slowexp): Remove prototype. * sysdeps/ieee754/dbl-64/e_pow.c: Remove mention of slowexp.c in comment. * sysdeps/powerpc/power4/fpu/Makefile [$(subdir) = math] (CPPFLAGS-slowexp.c): Remove variable. * sysdeps/x86_64/fpu/multiarch/Makefile (libm-sysdep_routines): Remove slowexp-fma, slowexp-fma4 and slowexp-avx. (CFLAGS-slowexp-fma.c): Remove variable. (CFLAGS-slowexp-fma4.c): Likewise. (CFLAGS-slowexp-avx.c): Likewise. * sysdeps/x86_64/fpu/multiarch/e_exp-avx.c (__slowexp): Do not define as macro. * sysdeps/x86_64/fpu/multiarch/e_exp-fma.c (__slowexp): Likewise. * sysdeps/x86_64/fpu/multiarch/e_exp-fma4.c (__slowexp): Likewise. * math/Makefile (type-double-routines): Remove slowexp. * manual/probes.texi (slowexp_p6): Remove. (slowexp_p32): Likewise.
2017-12-19Improve __ieee754_exp() performance by greater than 5x on sparc/x86.Patrick McGehearty
These changes will be active for all platforms that don't provide their own exp() routines. They will also be active for ieee754 versions of ccos, ccosh, cosh, csin, csinh, sinh, exp10, gamma, and erf. Typical performance gains is typically around 5x when measured on Sparc s7 for common values between exp(1) and exp(40). Using the glibc perf tests on sparc, sparc (nsec) x86 (nsec) old new old new max 17629 395 5173 144 min 399 54 15 13 mean 5317 200 1349 23 The extreme max times for the old (ieee754) exp are due to the multiprecision computation in the old algorithm when the true value is very near 0.5 ulp away from an value representable in double precision. The new algorithm does not take special measures for those cases. The current glibc exp perf tests overrepresent those values. Informal testing suggests approximately one in 200 cases might invoke the high cost computation. The performance advantage of the new algorithm for other values is still large but not as large as indicated by the chart above. Glibc correctness tests for exp() and expf() were run. Within the test suite 3 input values were found to cause 1 bit differences (ulp) when "FE_TONEAREST" rounding mode is set. No differences in exp() were seen for the tested values for the other rounding modes. Typical example: exp(-0x1.760cd2p+0) (-1.46113312244415283203125) new code: 2.31973271630014299393707e-01 0x1.db14cd799387ap-3 old code: 2.31973271630014271638132e-01 0x1.db14cd7993879p-3 exp = 2.31973271630014285508337 (high precision) Old delta: off by 0.49 ulp New delta: off by 0.51 ulp In addition, because ieee754_exp() is used by other routines, cexp() showed test results with very small imaginary input values where the imaginary portion of the result was off by 3 ulp when in upward rounding mode, but not in the other rounding modes. For x86, tgamma showed a few values where the ulp increased to 6 (max ulp for tgamma is 5). Sparc tgamma did not show these failures. I presume the tgamma differences are due to compiler optimization differences within the gamma function.The gamma function is known to be difficult to compute accurately. * sysdeps/ieee754/dbl-64/e_exp.c: Include <math-svid-compat.h> and <errno.h>. Include "eexp.tbl". (half): New constant. (one): Likewise. (__ieee754_exp): Rewrite. (__slowexp): Remove prototype. * sysdeps/ieee754/dbl-64/eexp.tbl: New file. * sysdeps/ieee754/dbl-64/slowexp.c: Remove file. * sysdeps/i386/fpu/slowexp.c: Likewise. * sysdeps/ia64/fpu/slowexp.c: Likewise. * sysdeps/m68k/m680x0/fpu/slowexp.c: Likewise. * sysdeps/x86_64/fpu/multiarch/slowexp-avx.c: Likewise. * sysdeps/x86_64/fpu/multiarch/slowexp-fma.c: Likewise. * sysdeps/x86_64/fpu/multiarch/slowexp-fma4.c: Likewise. * sysdeps/generic/math_private.h (__slowexp): Remove prototype. * sysdeps/ieee754/dbl-64/e_pow.c: Remove mention of slowexp.c in comment. * sysdeps/powerpc/power4/fpu/Makefile [$(subdir) = math] (CPPFLAGS-slowexp.c): Remove variable. * sysdeps/x86_64/fpu/multiarch/Makefile (libm-sysdep_routines): Remove slowexp-fma, slowexp-fma4 and slowexp-avx. (CFLAGS-slowexp-fma.c): Remove variable. (CFLAGS-slowexp-fma4.c): Likewise. (CFLAGS-slowexp-avx.c): Likewise. * sysdeps/x86_64/fpu/multiarch/e_exp-avx.c (__slowexp): Do not define as macro. * sysdeps/x86_64/fpu/multiarch/e_exp-fma.c (__slowexp): Likewise. * sysdeps/x86_64/fpu/multiarch/e_exp-fma4.c (__slowexp): Likewise. * math/Makefile (type-double-routines): Remove slowexp. * manual/probes.texi (slowexp_p6): Remove. (slowexp_p32): Likewise.
2017-12-12Update IA64 libm-test-ulpsAdhemerval Zanella
Ran on Itanium Processor 9020, GCC 7.2.1. * sysdeps/ia64/fpu/libm-test-ulps: Update. Signed-off-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2017-12-06Correct some ia64 libm_alias_float_other calls.Joseph Myers
This patch corrects three ia64 libm_alias_float_other calls so they generate the intended _Float32 aliases when such aliases are enabled. Tested with build-many-glibcs.py for ia64-linux-gnu (that installed stripped shared libraries are unchanged when applied to current sources, and that this enables compilation tests to pass when used in conjunction with other _Float32 patches). * sysdeps/ia64/fpu/e_exp2f.S (__exp2f): Use exp2 not __exp2 as second argument to libm_alias_float_other. * sysdeps/ia64/fpu/e_log2f.S (__log2f): Use log2 not __log2 as second argument to libm_alias_float_other. * sysdeps/ia64/fpu/e_powf.S (__powf): Use pow not __pow as second argument to libm_alias_float_other.
2017-11-29Use libm_alias_float for ia64.Joseph Myers
Continuing the preparation for additional _FloatN / _FloatNx function aliases, this patch makes ia64 libm function implementations use libm_alias_float to define function aliases. The same approach is followed as with the corresponding long double and double patches: the ia64-specific macros are left unchanged, with calls to libm_alias_float_other being added in most cases and libm_alias_float itself being used in only a few places. Tested with build-many-glibcs.py for ia64-linux-gnu that installed stripped shared libraries are unchanged by the patch. * sysdeps/ia64/fpu/libm-symbols.h: Include <libm-alias-float.h>. * sysdeps/ia64/fpu/e_acosf.S (acosf): Use libm_alias_float_other. * sysdeps/ia64/fpu/e_acoshf.S (acoshf): Likewise. * sysdeps/ia64/fpu/e_asinf.S (asinf): Likewise. * sysdeps/ia64/fpu/e_atan2f.S (atan2f): Likewise. * sysdeps/ia64/fpu/e_atanhf.S (atanhf): Likewise. * sysdeps/ia64/fpu/e_coshf.S (coshf): Likewise. * sysdeps/ia64/fpu/e_exp10f.S (exp10f): Likewise. * sysdeps/ia64/fpu/e_exp2f.S (exp2f): Likewise. * sysdeps/ia64/fpu/e_expf.S (expf): Likewise. * sysdeps/ia64/fpu/e_fmodf.S (fmodf): Likewise. * sysdeps/ia64/fpu/e_hypotf.S (hypotf): Likewise. * sysdeps/ia64/fpu/e_lgammaf_r.c (lgammaf_r): Define using libm_alias_float_r. * sysdeps/ia64/fpu/e_log2f.S (log2f): Use libm_alias_float_other. * sysdeps/ia64/fpu/e_logf.S (log10f): Likewise. (logf): Likewise. * sysdeps/ia64/fpu/e_powf.S (powf): Likewise. * sysdeps/ia64/fpu/e_remainderf.S (remainderf): Likewise. * sysdeps/ia64/fpu/e_sinhf.S (sinhf): Likewise. * sysdeps/ia64/fpu/e_sqrtf.S (sqrtf): Likewise. * sysdeps/ia64/fpu/libm_sincosf.S (sincosf): Likewise. * sysdeps/ia64/fpu/s_asinhf.S (asinhf): Likewise. * sysdeps/ia64/fpu/s_atanf.S (atanf): Likewise. * sysdeps/ia64/fpu/s_cbrtf.S (cbrtf): Likewise. * sysdeps/ia64/fpu/s_ceilf.S (ceilf): Likewise. * sysdeps/ia64/fpu/s_copysign.S (copysignf): Define using libm_alias_float. * sysdeps/ia64/fpu/s_cosf.S (sinf): Use libm_alias_float_other. (cosf): Likewise. * sysdeps/ia64/fpu/s_erfcf.S (erfcf): Likewise. * sysdeps/ia64/fpu/s_erff.S (erff): Likewise. * sysdeps/ia64/fpu/s_expm1f.S (expm1f): Likewise. * sysdeps/ia64/fpu/s_fabsf.S (fabsf): Likewise. * sysdeps/ia64/fpu/s_fdimf.S (fdimf): Likewise. * sysdeps/ia64/fpu/s_floorf.S (floorf): Likewise. * sysdeps/ia64/fpu/s_fmaf.S (fmaf): Likewise. * sysdeps/ia64/fpu/s_fmaxf.S (fmaxf): Likewise. * sysdeps/ia64/fpu/s_frexpf.c (frexpf): Likewise. * sysdeps/ia64/fpu/s_ldexpf.c (ldexpf): Likewise. * sysdeps/ia64/fpu/s_log1pf.S (log1pf): Likewise. * sysdeps/ia64/fpu/s_logbf.S (logbf): Likewise. * sysdeps/ia64/fpu/s_modff.S (modff): Likewise. * sysdeps/ia64/fpu/s_nearbyintf.S (nearbyintf): Likewise. * sysdeps/ia64/fpu/s_nextafterf.S (nextafterf): Likewise. * sysdeps/ia64/fpu/s_rintf.S (rintf): Likewise. * sysdeps/ia64/fpu/s_roundf.S (roundf): Likewise. * sysdeps/ia64/fpu/s_scalblnf.c (scalblnf): Likewise. * sysdeps/ia64/fpu/s_scalbnf.c (scalbnf): Define using libm_alias_float. * sysdeps/ia64/fpu/s_tanf.S (tanf): Use libm_alias_float_other. * sysdeps/ia64/fpu/s_tanhf.S (tanhf): Likewise. * sysdeps/ia64/fpu/s_truncf.S (truncf): Likewise. * sysdeps/ia64/fpu/w_lgammaf_main.c [BUILD_LGAMMA && !USE_AS_COMPAT] (lgammaf): Likewise. * sysdeps/ia64/fpu/w_tgammaf_compat.S (tgammaf): Likewise.
2017-11-29Use libm_alias_double for ia64.Joseph Myers
Continuing the preparation for additional _FloatN / _FloatNx function aliases, this patch makes ia64 libm function implementations use libm_alias_double to define function aliases. The same approach is followed as with the corresponding long double patch: the ia64-specific macros are left unchanged, with calls to libm_alias_double_other being added in most cases and libm_alias_double itself being used in only a few places. Tested with build-many-glibcs.py for ia64-linux-gnu that installed stripped shared libraries are unchanged by the patch. * sysdeps/ia64/fpu/libm-symbols.h: Include <libm-alias-double.h>. * sysdeps/ia64/fpu/e_acos.S (acos): Use libm_alias_double_other. * sysdeps/ia64/fpu/e_acosh.S (acosh): Likewise. * sysdeps/ia64/fpu/e_asin.S (asin): Likewise. * sysdeps/ia64/fpu/e_atan2.S (atan2): Likewise. * sysdeps/ia64/fpu/e_atanh.S (atanh): Likewise. * sysdeps/ia64/fpu/e_cosh.S (cosh): Likewise. * sysdeps/ia64/fpu/e_exp.S (exp): Likewise. * sysdeps/ia64/fpu/e_exp10.S (exp10): Likewise. * sysdeps/ia64/fpu/e_exp2.S (exp2): Likewise. * sysdeps/ia64/fpu/e_fmod.S (fmod): Likewise. * sysdeps/ia64/fpu/e_hypot.S (hypot): Likewise. * sysdeps/ia64/fpu/e_lgamma_r.c (lgamma_r): Define using libm_alias_double_r. * sysdeps/ia64/fpu/e_log.S (log10): Use libm_alias_double_other. (log): Likewise. * sysdeps/ia64/fpu/e_log2.S (log2): Likewise. * sysdeps/ia64/fpu/e_pow.S (pow): Likewise. * sysdeps/ia64/fpu/e_remainder.S (remainder): Likewise. * sysdeps/ia64/fpu/e_sinh.S (sinh): Likewise. * sysdeps/ia64/fpu/e_sqrt.S (sqrt): Likewise. * sysdeps/ia64/fpu/libm_sincos.S (sincos): Likewise. * sysdeps/ia64/fpu/s_asinh.S (asinh): Likewise. * sysdeps/ia64/fpu/s_atan.S (atan): Likewise. * sysdeps/ia64/fpu/s_cbrt.S (cbrt): Likewise. * sysdeps/ia64/fpu/s_ceil.S (ceil): Likewise. * sysdeps/ia64/fpu/s_copysign.S (copysign): Define using libm_alias_double. * sysdeps/ia64/fpu/s_cos.S (sin): Use libm_alias_double_other. (cos): Likewise. * sysdeps/ia64/fpu/s_erf.S (erf): Likewise. * sysdeps/ia64/fpu/s_erfc.S (erfc): Likewise. * sysdeps/ia64/fpu/s_expm1.S (expm1): Likewise. * sysdeps/ia64/fpu/s_fabs.S (fabs): Likewise. * sysdeps/ia64/fpu/s_fdim.S (fdim): Likewise. * sysdeps/ia64/fpu/s_floor.S (floor): Likewise. * sysdeps/ia64/fpu/s_fma.S (fma): Likewise. * sysdeps/ia64/fpu/s_fmax.S (fmax): Likewise. * sysdeps/ia64/fpu/s_frexp.c (frexp): Likewise. * sysdeps/ia64/fpu/s_ldexp.c (ldexp): Likewise. * sysdeps/ia64/fpu/s_log1p.S (log1p): Likewise. * sysdeps/ia64/fpu/s_logb.S (logb): Likewise. * sysdeps/ia64/fpu/s_modf.S (modf): Likewise. * sysdeps/ia64/fpu/s_nearbyint.S (nearbyint): Likewise. * sysdeps/ia64/fpu/s_nextafter.S (nextafter): Likewise. * sysdeps/ia64/fpu/s_rint.S (rint): Likewise. * sysdeps/ia64/fpu/s_round.S (round): Likewise. * sysdeps/ia64/fpu/s_scalbn.c (scalbn): Define using libm_alias_double. * sysdeps/ia64/fpu/s_tan.S (tan): Use libm_alias_double_other. * sysdeps/ia64/fpu/s_tanh.S (tanh): Likewise. * sysdeps/ia64/fpu/s_trunc.S (trunc): Likewise. * sysdeps/ia64/fpu/w_lgamma_main.c [BUILD_LGAMMA && !USE_AS_COMPAT] (lgamma): Likewise. * sysdeps/ia64/fpu/w_tgamma_compat.S (tgamma): Likewise.
2017-11-23Use libm_alias_ldouble macros in sysdeps/ia64/fpu.Joseph Myers
Continuing the preparation for additional _FloatN / _FloatNx aliases, this patch makes long double functions in sysdeps/ia64/fpu use libm_alias_ldouble macros, so that they can have _Float64x aliases added in future. Most ia64 libm functions are defined using ia64-specific macros in libm-symbols.h. These are left unchanged, with libm-alias-ldouble.h included from libm-symbols.h (and the expectation that other libm-alias-*.h headers will be included from there as well in future), and libm_alias_ldouble_other then being used in most cases to define aliases for any additional types (currently the empty set). Functions that used weak_alias are converted to use libm_alias_ldouble. Tested (compilation only) with build-many-glibcs.py for ia64, including that installed stripped shared libraries are unchanged by the patch. * sysdeps/ia64/fpu/libm-symbols.h: Include <libm-alias-ldouble.h>. * sysdeps/ia64/fpu/e_acoshl.S (acoshl): Use libm_alias_ldouble_other. * sysdeps/ia64/fpu/e_acosl.S (acosl): Likewise. * sysdeps/ia64/fpu/e_asinl.S (asinl): Likewise. * sysdeps/ia64/fpu/e_atanhl.S (atanhl): Likewise. * sysdeps/ia64/fpu/e_coshl.S (coshl): Likewise. * sysdeps/ia64/fpu/e_exp10l.S (exp10l): Likewise. * sysdeps/ia64/fpu/e_exp2l.S (exp2l): Likewise. * sysdeps/ia64/fpu/e_fmodl.S (fmodl): Likewise. * sysdeps/ia64/fpu/e_hypotl.S (hypotl): Likewise. * sysdeps/ia64/fpu/e_lgammal_r.c (lgammal_r): Define using libm_alias_ldouble_r. * sysdeps/ia64/fpu/e_log2l.S (log2l): Use libm_alias_ldouble_other. * sysdeps/ia64/fpu/e_logl.S (logl): Likewise. (log10l): Likewise. * sysdeps/ia64/fpu/e_powl.S (powl): Likewise. * sysdeps/ia64/fpu/e_remainderl.S (remainderl): Likewise. * sysdeps/ia64/fpu/e_sinhl.S (sinhl): Likewise. * sysdeps/ia64/fpu/e_sqrtl.S (sqrtl): Likewise. * sysdeps/ia64/fpu/libm_sincosl.S (sincosl): Likewise. * sysdeps/ia64/fpu/s_asinhl.S (asinhl): Likewise. * sysdeps/ia64/fpu/s_atanl.S (atanl): Likewise. (atan2l): Likewise. * sysdeps/ia64/fpu/s_cbrtl.S (cbrtl): Likewise. * sysdeps/ia64/fpu/s_ceill.S (ceill): Likewise. * sysdeps/ia64/fpu/s_copysign.S (copysignl): Define using libm_alias_ldouble. * sysdeps/ia64/fpu/s_cosl.S (sinl): Use libm_alias_ldouble_other. (cosl): Likewise. * sysdeps/ia64/fpu/s_erfcl.S (erfcl): Likewise. * sysdeps/ia64/fpu/s_erfl.S (erfl): Likewise. * sysdeps/ia64/fpu/s_expm1l.S (expm1l): Likewise. (expl): Likewise. * sysdeps/ia64/fpu/s_fabsl.S (fabsl): Likewise. * sysdeps/ia64/fpu/s_fdiml.S (fdiml): Likewise. * sysdeps/ia64/fpu/s_floorl.S (floorl): Likewise. * sysdeps/ia64/fpu/s_fmal.S (fmal): Likewise. * sysdeps/ia64/fpu/s_fmaxl.S (fmaxl): Likewise. * sysdeps/ia64/fpu/s_frexpl.c (frexpl): Likewise. * sysdeps/ia64/fpu/s_ldexpl.c (ldexpl): Likewise. * sysdeps/ia64/fpu/s_log1pl.S (log1pl): Likewise. * sysdeps/ia64/fpu/s_logbl.S (logbl): Likewise. * sysdeps/ia64/fpu/s_modfl.S (modfl): Likewise. * sysdeps/ia64/fpu/s_nearbyintl.S (nearbyintl): Define using libm_alias_ldouble. * sysdeps/ia64/fpu/s_nextafterl.S (nextafterl): Use libm_alias_ldouble_other. * sysdeps/ia64/fpu/s_rintl.S (rintl): Likewise. * sysdeps/ia64/fpu/s_roundl.S (roundl): Likewise. * sysdeps/ia64/fpu/s_scalbnl.c (scalbnl): Define using libm_alias_ldouble. * sysdeps/ia64/fpu/s_tanhl.S (tanhl): Use libm_alias_ldouble_other. * sysdeps/ia64/fpu/s_tanl.S (tanl): Likewise. * sysdeps/ia64/fpu/s_truncl.S (truncl): Likewise. * sysdeps/ia64/fpu/w_lgammal_main.c [BUILD_LGAMMA && !USE_AS_COMPAT] (lgammal): Likewise. * sysdeps/ia64/fpu/w_tgammal_compat.S (tgammal): Likewise.
2017-10-02New symbol version for logf, log2f and powf without SVID compatSzabolcs Nagy
This patch changes the logf, log2f and powf error handling semantics to only set errno accoring to POSIX rules. New symbol version is introduced at GLIBC_2.27. The old wrappers are kept for compat symbols. ia64 needed assembly change to have the new and compat versioned symbol map to the same function. All linux libm abilists are updated. * math/Versions (logf): New libm symbol at GLIBC_2.27. (log2f): Likewise. (powf): Likewise. * math/w_log2f.c: New file. * math/w_logf.c: New file. * math/w_powf.c: New file. * math/w_log2f_compat.c (__log2f_compat): For compat symbol only. * math/w_logf_compat.c (__logf_compat): Likewise. * math/w_powf_compat.c (__powf_compat): Likewise. * sysdeps/ia64/fpu/e_log2f.S: Add versioned symbols. * sysdeps/ia64/fpu/e_logf.S: Likewise. * sysdeps/ia64/fpu/e_powf.S: Likewise. * sysdeps/unix/sysv/linux/aarch64/libm.abilist: Update. * sysdeps/unix/sysv/linux/alpha/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/arm/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/hppa/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/i386/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/ia64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/microblaze/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/mips/mips32/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/nios2/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/sh/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/tile/tilepro/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Likewise.
2017-09-29New generic powfSzabolcs Nagy
without wrapper on aarch64: powf reciprocal-throughput: 4.2x faster powf latency: 2.6x faster old worst-case error: 1.11 ulp new worst-case error: 0.82 ulp aarch64 .text size: -780 bytes aarch64 .rodata size: +144 bytes powf(x,y) is implemented as exp2(y*log2(x)) with the same algorithms that are used in exp2f and log2f, except that the log2f polynomial is larger for extra precision and its output (and exp2f input) may be scaled by a power of 2 (POWF_SCALE) to simplify the argument reduction step of exp2 (possible when efficient round and convert toint operation is available). The special case handling tries to minimize the checks in the hot path. When the input of exp2_inline is checked, int arithmetics is used as that was faster on the tested aarch64 cores. * math/Makefile (type-float-routines): Add e_powf_log2_data. * sysdeps/ieee754/flt-32/e_powf.c: New implementation. * sysdeps/ieee754/flt-32/e_powf_log2_data.c: New file. * sysdeps/ieee754/flt-32/math_config.h (__powf_log2_data): Define. (issignalingf_inline): Likewise. (POWF_LOG2_TABLE_BITS): Likewise. (POWF_LOG2_POLY_ORDER): Likewise. (POWF_SCALE_BITS): Likewise. (POWF_SCALE): Likewise. * sysdeps/i386/fpu/e_powf_log2_data.c: New file. * sysdeps/ia64/fpu/e_powf_log2_data.c: New file. * sysdeps/m68k/m680x0/fpu/e_powf_log2_data.c: New file.
2017-09-29New generic log2fSzabolcs Nagy
Similar to the new logf: double precision arithmetics and a small lookup table is used. The argument reduction step is the same as in the new logf. without wrapper on aarch64: log2f reciprocal-throughput: 2.3x faster log2f latency: 2.1x faster old worst case error: 1.72 ulp new worst case error: 0.75 ulp aarch64 .text size: -252 bytes aarch64 .rodata size: +244 bytes * math/Makefile (type-float-routines): Add e_log2f_data. * sysdeps/ieee754/flt-32/e_log2f.c: New implementation. * sysdeps/ieee754/flt-32/e_log2f_data.c: New file. * sysdeps/ieee754/flt-32/math_config.h (__log2f_data): Define. (LOG2F_TABLE_BITS, LOG2F_POLY_ORDER): Define. * sysdeps/i386/fpu/e_log2f_data.c: New file. * sysdeps/ia64/fpu/e_log2f_data.c: New file. * sysdeps/m68k/m680x0/fpu/e_log2f_data.c: New file.
2017-09-29New generic logfSzabolcs Nagy
without wrapper on aarch64: logf reciprocal-throughput: 2.2x faster logf latency: 1.9x faster old worst case error: 0.89 ulp new worst case error: 0.82 ulp aarch64 .text size: -356 bytes aarch64 .rodata size: +240 bytes Uses double precision arithmetics and a lookup table to allow smaller polynomial and avoid the use of division. Data is in a separate translation unit with fixed layout to prevent the compiler generating suboptimal literal access. Errors are handled inline according to POSIX rules, but this patch keeps the wrapper with SVID compatible error handling. Needs libm-test-ulps adjustment for clogf in non-nearest rounding mode. * math/Makefile (type-float-routines): Add e_logf_data. * sysdeps/ieee754/flt-32/e_logf.c: New implementation. * sysdeps/ieee754/flt-32/e_logf_data.c: New file. * sysdeps/ieee754/flt-32/math_config.h (__logf_data): Define. (LOGF_TABLE_BITS, LOGF_POLY_ORDER): Define. * sysdeps/i386/fpu/e_logf_data.c: New file. * sysdeps/ia64/fpu/e_logf_data.c: New file. * sysdeps/m68k/m680x0/fpu/e_logf_data.c: New file.
2017-09-28Remove ancient __signbit inlinesWilco Dijkstra
Remove __signbit inlines from mathinline.h. Math.h already uses the builtin when supported, so additional inlines are only used on pre 4.0 GCCs. Similarly remove ancient copysign and fabs inlines. * sysdeps/alpha/fpu/bits/mathinline.h: Delete file. * sysdeps/ia64/fpu/bits/mathinline.h: Delete file. * sysdeps/m68k/coldfire/fpu/bits/mathinline.h: Delete file. * sysdeps/m68k/m680x0/fpu/bits/mathinline.h: (__signbitf): Remove. (__signbit): Remove. (__signbitl): Remove. * sysdeps/powerpc/bits/mathinline.h (__signbitf): Remove. (__signbit): Remove. (__signbitl): Remove. * sysdeps/s390/fpu/bits/mathinline.h: (__signbitf): Remove. (__signbit): Remove. (__signbitl): Remove * sysdeps/sparc/fpu/bits/mathinline.h (__signbitf): Remove. (__signbit): Remove. (__signbitl): Remove. * sysdeps/tile/bits/mathinline.h: Delete file. * sysdeps/x86/fpu/bits/mathinline.h (__signbitf): Remove. (__signbit): Remove. (__signbitl): Remove.
2017-09-25New expf and exp2f version without SVID compat wrapperSzabolcs Nagy
This patch changes the expf and exp2f error handling semantics to only set errno accoring to POSIX rules. New symbol version is introduced at GLIBC_2.27. The old wrappers are kept for compat symbols. Internal calls to __expf now get the new error semantics, this seems to only affect sysdeps/i386/fpu/s_expm1f.S where the errno-only behaviour should be correct. ia64 needed assembly change to have the new and compat versioned symbol map to the same function. All linux libm abilists are updated. * math/Versions (expf): New libm symbol at GLIBC_2.27. (exp2f): Likewise. * math/w_exp2f.c: New file. * math/w_expf.c: New file. * math/w_exp2f_compat.c (__exp2f_compat): For compat symbol only. * math/w_expf_compat.c (__expf_compat): Likewise. * sysdeps/ia64/fpu/e_exp2f.S: Add versioned symbols. * sysdeps/ia64/fpu/e_expf.S: Likewise. * sysdeps/unix/sysv/linux/aarch64/libm.abilist: Update. * sysdeps/unix/sysv/linux/alpha/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/arm/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/hppa/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/i386/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/ia64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/microblaze/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/mips/mips32/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/nios2/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/sh/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/tile/tilepro/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Likewise.
2017-09-25Optimized generic expf and exp2f with wrappersSzabolcs Nagy
Based on new expf and exp2f code from https://github.com/ARM-software/optimized-routines/ with wrapper on aarch64: expf reciprocal-throughput: 2.3x faster expf latency: 1.7x faster without wrapper on aarch64: expf reciprocal-throughput: 3.3x faster expf latency: 1.7x faster without wrapper on aarch64: exp2f reciprocal-throughput: 2.8x faster exp2f latency: 1.3x faster libm.so size on aarch64: .text size: -152 bytes .rodata size: -1740 bytes expf/exp2f worst case nearest rounding error: 0.502 ulp worst case non-nearest rounding error: 1 ulp Error checks are inline and errno setting is in separate tail called functions, but the wrappers are kept in this patch to handle the _LIB_VERSION==_SVID_ case. (So e.g. errno is set twice for expf calls and once for __expf_finite calls on targets where the new code is used.) Double precision arithmetics is used which is expected to be faster on most targets (including soft-float) than using single precision and it is easier to get good precision result with it. Const data is kept in a separate translation unit which complicates maintenance a bit, but is expected to give good code for literal loads on most targets and allows sharing data across expf, exp2f and powf. (This data is disabled on i386, m68k and ia64 which have their own expf, exp2f and powf code.) Some details may need target specific tweaks: - best convert and round to int operation in the arg reduction may be different across targets. - code was optimized on fma target, optimal polynomial eval may be different without fma. - gcc does not always generate good code for fp bit representation access via unions or it may be inherently slow on some targets. The libm-test-ulps will need adjustment because.. - The argument reduction ideally uses nearest rounded rint, but that is not efficient on most targets, so the polynomial can get evaluated on a wider interval in non-nearest rounding mode making 1 ulp errors common in that case. - The polynomial is evaluated such that it may have 1 ulp error on negative tiny inputs with upward rounding. * math/Makefile (type-float-routines): Add math_errf and e_exp2f_data. * sysdeps/aarch64/fpu/math_private.h (TOINT_INTRINSICS): Define. (roundtoint, converttoint): Likewise. * sysdeps/ieee754/flt-32/e_expf.c: New implementation. * sysdeps/ieee754/flt-32/e_exp2f.c: New implementation. * sysdeps/ieee754/flt-32/e_exp2f_data.c: New file. * sysdeps/ieee754/flt-32/math_config.h: New file. * sysdeps/ieee754/flt-32/math_errf.c: New file. * sysdeps/ieee754/flt-32/t_exp2f.h: Remove. * sysdeps/i386/fpu/e_exp2f_data.c: New file. * sysdeps/i386/fpu/math_errf.c: New file. * sysdeps/ia64/fpu/e_exp2f_data.c: New file. * sysdeps/ia64/fpu/math_errf.c: New file. * sysdeps/m68k/m680x0/fpu/e_exp2f_data.c: New file. * sysdeps/m68k/m680x0/fpu/math_errf.c: New file.
2017-09-05Prefer new libm function wrappers for !LIBM_SVID_COMPAT.Joseph Myers
The initial obsoletion of SVID libm error handling left the old wrappers and __kernel_standard still being used for new ports and static linking, just with macro definitions of _LIB_VERSION and matherr that meant symbols with those names were never actually used and the code for different error handling variants could be optimized out. This patch cleans things up further by eliminating the __kernel_standard use for new ports and static linking. Now, the old wrappers no longer generate any code in the !LIBM_SVID_COMPAT case, while the new errno-only wrappers that were added for float128 support are now also used for float, double and long double in that case. The changes are generally straightforward. The w_scalb*_compat wrappers continue to be used (scalb is obsolescent in the sense of not being supported for float128, but is present in supported standards - the 2001 edition of POSIX and earlier XSI versions - so remains supported for static linking and new ports, as do the float and long double variants that are existing GNU extensions). Those wrappers would only call __kernel_standard in the _LIB_VERSION == _SVID_ case. Since we would like to be able to compile most of glibc without optimization, relying on a static function whose only use is under an if (0) condition being optimized away to avoid an undefined __kernel_standard reference may not be a good idea. Thus, the relevant code in the scalb wrappers has LIBM_SVID_COMPAT conditionals added to guarantee it's not built at all in the case where __kernel_standard does not exist. Just as i386 has its own w_sqrt_compat.c, so w_sqrt.c is also added. ia64 gets dummy w_*.c to prevent those files being built where they would conflict with the ia64 libm, as with its existing w_*_compat.c. Conditions disabling code for !LIBM_SVID_COMPAT are needed in both the math/ wrappers and in the long double wrappers in ldbl-opt (to avoid them setting up aliases and symbol versions for undefined symbols). I hope that future cleanups to how libm function aliases and symbol versioning are done will eliminate the need for most of the ldbl-opt wrappers. Tested for x86_64 and x86, and with build-many-glibcs.py. * sysdeps/generic/math-type-macros-double.h: Include <math-svid-compat.h>. (__USE_WRAPPER_TEMPLATE): Define to !LIBM_SVID_COMPAT. * sysdeps/generic/math-type-macros-float.h: Include <math-svid-compat.h>. (__USE_WRAPPER_TEMPLATE): Define to !LIBM_SVID_COMPAT. * sysdeps/generic/math-type-macros-ldouble.h: Include <math-svid-compat.h>. (__USE_WRAPPER_TEMPLATE): Define to !LIBM_SVID_COMPAT. * math/lgamma-compat.h (BUILD_LGAMMA): Include LIBM_SVID_COMPAT condition. * math/w_acos_compat.c: Condition contents on [LIBM_SVID_COMPAT]. * math/w_acosf_compat.c: Likewise. * math/w_acosh_compat.c: Likewise. * math/w_acoshf_compat.c: Likewise. * math/w_acoshl_compat.c: Likewise. * math/w_acosl_compat.c: Likewise. * math/w_asin_compat.c: Likewise. * math/w_asinf_compat.c: Likewise. * math/w_asinl_compat.c: Likewise. * math/w_atan2_compat.c: Likewise. * math/w_atan2f_compat.c: Likewise. * math/w_atan2l_compat.c: Likewise. * math/w_atanh_compat.c: Likewise. * math/w_atanhf_compat.c: Likewise. * math/w_atanhl_compat.c: Likewise. * math/w_cosh_compat.c: Likewise. * math/w_coshf_compat.c: Likewise. * math/w_coshl_compat.c: Likewise. * math/w_exp10_compat.c: Likewise. * math/w_exp10f_compat.c: Likewise. * math/w_exp10l_compat.c: Likewise. * math/w_exp2_compat.c: Likewise. * math/w_exp2f_compat.c: Likewise. * math/w_exp2l_compat.c: Likewise. * math/w_fmod_compat.c: Likewise. * math/w_fmodf_compat.c: Likewise. * math/w_fmodl_compat.c: Likewise. * math/w_hypot_compat.c: Likewise. * math/w_hypotf_compat.c: Likewise. * math/w_hypotl_compat.c: Likewise. * math/w_j0_compat.c: Likewise. * math/w_j0f_compat.c: Likewise. * math/w_j0l_compat.c: Likewise. * math/w_j1_compat.c: Likewise. * math/w_j1f_compat.c: Likewise. * math/w_j1l_compat.c: Likewise. * math/w_jn_compat.c: Likewise. * math/w_jnf_compat.c: Likewise. * math/w_jnl_compat.c: Likewise. * math/w_lgamma_r_compat.c: Likewise. * math/w_lgammaf_r_compat.c: Likewise. * math/w_lgammal_r_compat.c: Likewise. * math/w_log10_compat.c: Likewise. * math/w_log10f_compat.c: Likewise. * math/w_log10l_compat.c: Likewise. * math/w_log2_compat.c: Likewise. * math/w_log2f_compat.c: Likewise. * math/w_log2l_compat.c: Likewise. * math/w_log_compat.c: Likewise. * math/w_logf_compat.c: Likewise. * math/w_logl_compat.c: Likewise. * math/w_pow_compat.c: Likewise. * math/w_powf_compat.c: Likewise. * math/w_powl_compat.c: Likewise. * math/w_remainder_compat.c: Likewise. * math/w_remainderf_compat.c: Likewise. * math/w_remainderl_compat.c: Likewise. * math/w_sinh_compat.c: Likewise. * math/w_sinhf_compat.c: Likewise. * math/w_sinhl_compat.c: Likewise. * math/w_sqrt_compat.c: Likewise. * math/w_sqrtf_compat.c: Likewise. * math/w_sqrtl_compat.c: Likewise. * math/w_tgamma_compat.c: Likewise. * math/w_tgammaf_compat.c: Likewise. * math/w_tgammal_compat.c: Likewise. * math/w_scalb_compat.c (sysv_scalb): Condition definition on [LIBM_SVID_COMPAT]. (__scalb): Condition call to sysv_scalb on [LIBM_SVID_COMPAT]. * math/w_scalbf_compat.c (sysv_scalbf): Condition definition on [LIBM_SVID_COMPAT]. (__scalbf): Condition call to sysv_scalbf on [LIBM_SVID_COMPAT]. * math/w_scalbl_compat.c (sysv_scalbl): Condition definition on [LIBM_SVID_COMPAT]. (__scalbl): Condition call to sysv_scalbl on [LIBM_SVID_COMPAT]. * sysdeps/i386/fpu/w_sqrt.c: New file. * sysdeps/ia64/fpu/w_acos.c: Likewise. * sysdeps/ia64/fpu/w_acosf.c: Likewise. * sysdeps/ia64/fpu/w_acosh.c: Likewise. * sysdeps/ia64/fpu/w_acoshf.c: Likewise. * sysdeps/ia64/fpu/w_acoshl.c: Likewise. * sysdeps/ia64/fpu/w_acosl.c: Likewise. * sysdeps/ia64/fpu/w_asin.c: Likewise. * sysdeps/ia64/fpu/w_asinf.c: Likewise. * sysdeps/ia64/fpu/w_asinl.c: Likewise. * sysdeps/ia64/fpu/w_atan2.c: Likewise. * sysdeps/ia64/fpu/w_atan2f.c: Likewise. * sysdeps/ia64/fpu/w_atan2l.c: Likewise. * sysdeps/ia64/fpu/w_atanh.c: Likewise. * sysdeps/ia64/fpu/w_atanhf.c: Likewise. * sysdeps/ia64/fpu/w_atanhl.c: Likewise. * sysdeps/ia64/fpu/w_cosh.c: Likewise. * sysdeps/ia64/fpu/w_coshf.c: Likewise. * sysdeps/ia64/fpu/w_coshl.c: Likewise. * sysdeps/ia64/fpu/w_exp.c: Likewise. * sysdeps/ia64/fpu/w_exp10.c: Likewise. * sysdeps/ia64/fpu/w_exp10f.c: Likewise. * sysdeps/ia64/fpu/w_exp10l.c: Likewise. * sysdeps/ia64/fpu/w_exp2.c: Likewise. * sysdeps/ia64/fpu/w_exp2f.c: Likewise. * sysdeps/ia64/fpu/w_exp2l.c: Likewise. * sysdeps/ia64/fpu/w_expf.c: Likewise. * sysdeps/ia64/fpu/w_expl.c: Likewise. * sysdeps/ia64/fpu/w_fmod.c: Likewise. * sysdeps/ia64/fpu/w_fmodf.c: Likewise. * sysdeps/ia64/fpu/w_fmodl.c: Likewise. * sysdeps/ia64/fpu/w_hypot.c: Likewise. * sysdeps/ia64/fpu/w_hypotf.c: Likewise. * sysdeps/ia64/fpu/w_hypotl.c: Likewise. * sysdeps/ia64/fpu/w_lgamma_r.c: Likewise. * sysdeps/ia64/fpu/w_lgammaf_r.c: Likewise. * sysdeps/ia64/fpu/w_lgammal_r.c: Likewise. * sysdeps/ia64/fpu/w_log.c: Likewise. * sysdeps/ia64/fpu/w_log10.c: Likewise. * sysdeps/ia64/fpu/w_log10f.c: Likewise. * sysdeps/ia64/fpu/w_log10l.c: Likewise. * sysdeps/ia64/fpu/w_log2.c: Likewise. * sysdeps/ia64/fpu/w_log2f.c: Likewise. * sysdeps/ia64/fpu/w_log2l.c: Likewise. * sysdeps/ia64/fpu/w_logf.c: Likewise. * sysdeps/ia64/fpu/w_logl.c: Likewise. * sysdeps/ia64/fpu/w_pow.c: Likewise. * sysdeps/ia64/fpu/w_powf.c: Likewise. * sysdeps/ia64/fpu/w_powl.c: Likewise. * sysdeps/ia64/fpu/w_remainder.c: Likewise. * sysdeps/ia64/fpu/w_remainderf.c: Likewise. * sysdeps/ia64/fpu/w_remainderl.c: Likewise. * sysdeps/ia64/fpu/w_sinh.c: Likewise. * sysdeps/ia64/fpu/w_sinhf.c: Likewise. * sysdeps/ia64/fpu/w_sinhl.c: Likewise. * sysdeps/ia64/fpu/w_sqrt.c: Likewise. * sysdeps/ia64/fpu/w_sqrtf.c: Likewise. * sysdeps/ia64/fpu/w_sqrtl.c: Likewise. * sysdeps/ia64/fpu/w_tgamma.c: Likewise. * sysdeps/ia64/fpu/w_tgammaf.c: Likewise. * sysdeps/ia64/fpu/w_tgammal.c: Likewise. * sysdeps/ieee754/dbl-64/w_exp_compat.c: Condition contents on [LIBM_SVID_COMPAT]. * sysdeps/ieee754/flt-32/w_expf_compat.c: Likewise. * sysdeps/ieee754/k_standard.c: Likewise. * sysdeps/ieee754/k_standardf.c: Likewise. * sysdeps/ieee754/k_standardl.c: Likewise. * sysdeps/ieee754/ldbl-128/w_expl_compat.c: Likewise. * sysdeps/ieee754/ldbl-128ibm/w_expl_compat.c: Likewise. * sysdeps/ieee754/ldbl-96/w_expl_compat.c: Likewise. * sysdeps/ieee754/ldbl-64-128/w_expl_compat.c: Condition long_double_symbol call on [LIBM_SVID_COMPAT]. * sysdeps/ieee754/ldbl-opt/w_acoshl_compat.c: Likewise. * sysdeps/ieee754/ldbl-opt/w_acosl_compat.c: Likewise. * sysdeps/ieee754/ldbl-opt/w_asinl_compat.c: Likewise. * sysdeps/ieee754/ldbl-opt/w_atan2l_compat.c: Likewise. * sysdeps/ieee754/ldbl-opt/w_atanhl_compat.c: Likewise. * sysdeps/ieee754/ldbl-opt/w_coshl_compat.c: Likewise. * sysdeps/ieee754/ldbl-opt/w_fmodl_compat.c: Likewise. * sysdeps/ieee754/ldbl-opt/w_hypotl_compat.c: Likewise. * sysdeps/ieee754/ldbl-opt/w_j0l_compat.c: Likewise. * sysdeps/ieee754/ldbl-opt/w_j1l_compat.c: Likewise. * sysdeps/ieee754/ldbl-opt/w_jnl_compat.c: Likewise. * sysdeps/ieee754/ldbl-opt/w_lgammal_r_compat.c: Likewise. * sysdeps/ieee754/ldbl-opt/w_log10l_compat.c: Likewise. * sysdeps/ieee754/ldbl-opt/w_log2l_compat.c: Likewise. * sysdeps/ieee754/ldbl-opt/w_logl_compat.c: Likewise. * sysdeps/ieee754/ldbl-opt/w_powl_compat.c: Likewise. * sysdeps/ieee754/ldbl-opt/w_remainderl_compat.c: Likewise. * sysdeps/ieee754/ldbl-opt/w_sinhl_compat.c: Likewise. * sysdeps/ieee754/ldbl-opt/w_sqrtl_compat.c: Likewise. * sysdeps/ieee754/ldbl-opt/w_tgammal_compat.c: Likewise. * sysdeps/ieee754/ldbl-opt/w_exp10l_compat.c: Condition long_double_symbol and compat_symbol calls on [LIBM_SVID_COMPAT].
2017-09-01Obsolete pow10 functions.Joseph Myers
This patch obsoletes the pow10, pow10f and pow10l functions (makes them into compat symbols, not available for new ports or static linking). The exp10 names for these functions are standardized (in TS 18661-4) and were added in the same glibc version (2.1) as pow10 so source code can change to use them without any loss of portability. Since pow10 is deliberately not provided for _Float128, only exp10, this slightly simplifies moving to the new wrapper templates in the !LIBM_SVID_COMPAT case, by avoiding needing to arrange for pow10, pow10f and pow10l to be defined by those templates. Tested for x86_64, and with build-many-glibcs.py. * manual/math.texi (pow10): Do not document. (pow10f): Likewise. (pow10l): Likewise. * math/bits/mathcalls.h [__USE_GNU] (pow10): Do not declare. * math/bits/math-finite.h [__USE_GNU] (pow10): Likewise. * math/libm-test-exp10.inc (pow10_test): Remove. (do_test): Do not call pow10. * math/w_exp10_compat.c (pow10): Make into compat symbol. [NO_LONG_DOUBLE] (pow10l): Likewise. * math/w_exp10f_compat.c (pow10f): Likewise. * math/w_exp10l_compat.c (pow10l): Likewise. * sysdeps/ia64/fpu/e_exp10.S: Include <shlib-compat.h>. (pow10): Make into compat symbol. * sysdeps/ia64/fpu/e_exp10f.S: Include <shlib-compat.h>. (pow10f): Make into compat symbol. * sysdeps/ia64/fpu/e_exp10l.S: Include <shlib-compat.h>. (pow10l): Make into compat symbol. * sysdeps/ieee754/ldbl-opt/Makefile (libnldbl-calls): Remove pow10. (CFLAGS-nldbl-pow10.c): Remove variable.. * sysdeps/ieee754/ldbl-opt/nldbl-pow10.c: Remove file. * sysdeps/ieee754/ldbl-opt/w_exp10_compat.c (pow10l): Condition on [SHLIB_COMPAT (libm, GLIBC_2_1, GLIBC_2_27)]. * sysdeps/ieee754/ldbl-opt/w_exp10l_compat.c (compat_symbol): Undefine and redefine. (pow10l): Make into compat symbol. * sysdeps/aarch64/libm-test-ulps: Remove pow10 ulps. * sysdeps/alpha/fpu/libm-test-ulps: Likewise. * sysdeps/arm/libm-test-ulps: Likewise. * sysdeps/hppa/fpu/libm-test-ulps: Likewise. * sysdeps/i386/fpu/libm-test-ulps: Likewise. * sysdeps/i386/i686/fpu/multiarch/libm-test-ulps: Likewise. * sysdeps/microblaze/libm-test-ulps: Likewise. * sysdeps/mips/mips32/libm-test-ulps: Likewise. * sysdeps/mips/mips64/libm-test-ulps: Likewise. * sysdeps/nios2/libm-test-ulps: Likewise. * sysdeps/powerpc/fpu/libm-test-ulps: Likewise. * sysdeps/powerpc/nofpu/libm-test-ulps: Likewise. * sysdeps/s390/fpu/libm-test-ulps: Likewise. * sysdeps/sh/libm-test-ulps: Likewise. * sysdeps/sparc/fpu/libm-test-ulps: Likewise. * sysdeps/tile/libm-test-ulps: Likewise. * sysdeps/x86_64/fpu/libm-test-ulps: Likewise.
2017-08-21Obsolete matherr, _LIB_VERSION, libieee.a.Joseph Myers
This patch obsoletes support for SVID libm error handling (the system where a user-defined function matherr is called on a libm function error; only enabled if you also set _LIB_VERSION = _SVID_ or _LIB_VERSION = _XOPEN_) and the use of the _LIB_VERSION global variable to control libm error handling. matherr and _LIB_VERSION are made into compat symbols, not supported for new ports or for static linking. The libieee.a object file (which sets _LIB_VERSION = _IEEE_, so disabling errno setting for some functions) is also removed, and all the related definitions are removed from math.h. The manual already recommends against using matherr, and it's already not supported for _Float128 functions (those use new wrappers that don't support matherr, only errno) - this patch means that it becomes possible to e.g. add sinf32 as an alias to sinf without that resulting in undesired matherr support in sinf32 for existing glibc ports. matherr support is not part of any standard supported by glibc (it was removed in XPG4). Because matherr is a function to be defined by the user, of course user programs defining such a function will still continue to link; it just quietly won't be used. If they try to write to the library's copy of _LIB_VERSION to enable SVID error handling, however, they will get a link error (but if they define their own _LIB_VERSION variable, they won't). I expect the most likely case of build failures from this patch to be programs with unconditional cargo-culted uses of -lieee (based on a notion of "I want IEEE floating point", not any actual requirement for that library). Ideally, the new-port-or-static-linking case would use the new wrappers used for _Float128. This is not implemented in this patch, because of the complication of architecture-specific (powerpc32 and sparc) sqrt wrappers that use _LIB_VERSION and __kernel_standard directly. Thus, the old wrappers and __kernel_standard are still built unconditionally, and _LIB_VERSION still exists in static libm. But when the old wrappers and __kernel_standard are built in the non-compat case, _LIB_VERSION and matherr are defined as macros so code to support those features isn't actually built into static libm or new ports' shared libm after this patch. I intend to move to the new wrappers for static libm and new ports in followup patches. I believe the sqrt wrappers for powerpc32 and sparc can reasonably be removed. GCC already optimizes the normal case of sqrt by generating code that uses a hardware instruction and only calls the sqrt function if the argument was negative (if -fno-math-errno, of course, it just uses the hardware instruction without any check for negative argument being needed). Thus those wrappers will only actually get called in the case of negative arguments, which is not a case it makes sense to optimize for. But even without removing the powerpc32 and sparc wrappers it should still be possible to move to the new wrappers for static libm and new ports, just without having those dubious architecture-specific optimizations in static libm. Everything said about matherr equally applies to matherrf and matherrl (IA64-specific, undocumented), except that the structure of IA64 libm means it won't be converted to using the new wrappers (it doesn't use the old ones either, but its own error-handling code instead). As with other tests of compat symbols, I expect test-matherr and test-matherr-2 to need to become appropriately conditional once we have a system for disabling such tests for ports too new to have the relevant symbols. Tested for x86_64 and x86, and with build-many-glibcs.py. * math/math.h [__USE_MISC] (_LIB_VERSION_TYPE): Remove. [__USE_MISC] (_LIB_VERSION): Likewise. [__USE_MISC] (struct exception): Likewise. [__USE_MISC] (matherr): Likewise. [__USE_MISC] (DOMAIN): Likewise. [__USE_MISC] (SING): Likewise. [__USE_MISC] (OVERFLOW): Likewise. [__USE_MISC] (UNDERFLOW): Likewise. [__USE_MISC] (TLOSS): Likewise. [__USE_MISC] (PLOSS): Likewise. [__USE_MISC] (HUGE): Likewise. [__USE_XOPEN] (MAXFLOAT): Define even if [__USE_MISC]. * math/math-svid-compat.h: New file. * conform/linknamespace.pl (@whitelist): Remove matherr, matherrf and matherrl. * include/math.h [!_ISOMAC] (__matherr): Remove. * manual/arith.texi (FP Exceptions): Do not document matherr. * math/Makefile (tests): Change test-matherr to test-matherr-3. (tests-internal): New variable. (install-lib): Do not add libieee.a. (non-lib.a): Likewise. (extra-objs): Do not add libieee.a and ieee-math.o. (CPPFLAGS-s_lib_version.c): Remove variable. ($(objpfx)libieee.a): Remove rule. ($(addprefix $(objpfx), $(tests-internal)): Depend on $(libm). * math/ieee-math.c: Remove. * math/libm-test-support.c (matherr): Remove. * math/test-matherr.c: Use <support/test-driver.c>. Add copyright and license notices. Include <math-svid-compat.h> and <shlib-compat.h>. (matherr): Undefine as macro. Use compat_symbol_reference. (_LIB_VERSION): Likewise. * math/test-matherr-2.c: New file. * math/test-matherr-3.c: Likewise. * sysdeps/generic/math_private.h (__kernel_standard): Remove declaration. (__kernel_standard_f): Likewise. (__kernel_standard_l): Likewise. * sysdeps/ieee754/s_lib_version.c: Do not include <math.h> or <math_private.h>. Include <math-svid-compat.h>. (_LIB_VERSION): Undefine as macro. (_LIB_VERSION_INTERNAL): Always initialize to _POSIX_. Define only if [LIBM_SVID_COMPAT || !defined SHARED]. If [LIBM_SVID_COMPAT], use compat_symbol. * sysdeps/ieee754/s_matherr.c: Do not include <math.h> or <math_private.h>. Include <math-svid-compat.h>. (matherr): Undefine as macro. (__matherr): Define only if [LIBM_SVID_COMPAT]. Use compat_symbol. * sysdeps/ia64/fpu/libm_error.c: Include <math-svid-compat.h>. [_LIBC && LIBM_SVID_COMPAT] (matherrf): Use compat_symbol_reference. [_LIBC && LIBM_SVID_COMPAT] (matherrl): Likewise. [_LIBC && !LIBM_SVID_COMPAT] (matherrf): Define as macro. [_LIBC && !LIBM_SVID_COMPAT] (matherrl): Likewise. * sysdeps/ia64/fpu/libm_support.h: Include <math-svid-compat.h>. (MATHERR_D): Remove declaration. [!_LIBC] (_LIB_VERSION_TYPE): Likewise [!LIBM_BUILD] (_LIB_VERSIONIMF): Likewise. [LIBM_BUILD] (pmatherrf): Likewise. [LIBM_BUILD] (pmatherr): Likewise. [LIBM_BUILD] (pmatherrl): Likewise. (DOMAIN): Likewise. (SING): Likewise. (OVERFLOW): Likewise. (UNDERFLOW): Likewise. (TLOSS): Likewise. (PLOSS): Likewise. * sysdeps/ia64/fpu/s_matherrf.c: Include <math-svid-compat.h>. (__matherrf): Define only if [LIBM_SVID_COMPAT]. Use compat_symbol. * sysdeps/ia64/fpu/s_matherrl.c: Include <math-svid-compat.h>. (__matherrl): Define only if [LIBM_SVID_COMPAT]. Use compat_symbol. * math/lgamma-compat.h: Include <math-svid-compat.h>. * math/w_acos_compat.c: Likewise. * math/w_acosf_compat.c: Likewise. * math/w_acosh_compat.c: Likewise. * math/w_acoshf_compat.c: Likewise. * math/w_acoshl_compat.c: Likewise. * math/w_acosl_compat.c: Likewise. * math/w_asin_compat.c: Likewise. * math/w_asinf_compat.c: Likewise. * math/w_asinl_compat.c: Likewise. * math/w_atan2_compat.c: Likewise. * math/w_atan2f_compat.c: Likewise. * math/w_atan2l_compat.c: Likewise. * math/w_atanh_compat.c: Likewise. * math/w_atanhf_compat.c: Likewise. * math/w_atanhl_compat.c: Likewise. * math/w_cosh_compat.c: Likewise. * math/w_coshf_compat.c: Likewise. * math/w_coshl_compat.c: Likewise. * math/w_exp10_compat.c: Likewise. * math/w_exp10f_compat.c: Likewise. * math/w_exp10l_compat.c: Likewise. * math/w_exp2_compat.c: Likewise. * math/w_exp2f_compat.c: Likewise. * math/w_exp2l_compat.c: Likewise. * math/w_fmod_compat.c: Likewise. * math/w_fmodf_compat.c: Likewise. * math/w_fmodl_compat.c: Likewise. * math/w_hypot_compat.c: Likewise. * math/w_hypotf_compat.c: Likewise. * math/w_hypotl_compat.c: Likewise. * math/w_j0_compat.c: Likewise. * math/w_j0f_compat.c: Likewise. * math/w_j0l_compat.c: Likewise. * math/w_j1_compat.c: Likewise. * math/w_j1f_compat.c: Likewise. * math/w_j1l_compat.c: Likewise. * math/w_jn_compat.c: Likewise. * math/w_jnf_compat.c: Likewise. * math/w_jnl_compat.c: Likewise. * math/w_lgamma_main.c: Likewise. * math/w_lgamma_r_compat.c: Likewise. * math/w_lgammaf_main.c: Likewise. * math/w_lgammaf_r_compat.c: Likewise. * math/w_lgammal_main.c: Likewise. * math/w_lgammal_r_compat.c: Likewise. * math/w_log10_compat.c: Likewise. * math/w_log10f_compat.c: Likewise. * math/w_log10l_compat.c: Likewise. * math/w_log2_compat.c: Likewise. * math/w_log2f_compat.c: Likewise. * math/w_log2l_compat.c: Likewise. * math/w_log_compat.c: Likewise. * math/w_logf_compat.c: Likewise. * math/w_logl_compat.c: Likewise. * math/w_pow_compat.c: Likewise. * math/w_powf_compat.c: Likewise. * math/w_powl_compat.c: Likewise. * math/w_remainder_compat.c: Likewise. * math/w_remainderf_compat.c: Likewise. * math/w_remainderl_compat.c: Likewise. * math/w_scalb_compat.c: Likewise. * math/w_scalbf_compat.c: Likewise. * math/w_scalbl_compat.c: Likewise. * math/w_sinh_compat.c: Likewise. * math/w_sinhf_compat.c: Likewise. * math/w_sinhl_compat.c: Likewise. * math/w_sqrt_compat.c: Likewise. * math/w_sqrtf_compat.c: Likewise. * math/w_sqrtl_compat.c: Likewise. * math/w_tgamma_compat.c: Likewise. * math/w_tgammaf_compat.c: Likewise. * math/w_tgammal_compat.c: Likewise. * sysdeps/ieee754/dbl-64/w_exp_compat.c: Likewise. * sysdeps/ieee754/flt-32/w_expf_compat.c: Likewise. * sysdeps/ieee754/k_standard.c: Likewise. * sysdeps/ieee754/k_standardf.c: Likewise. * sysdeps/ieee754/k_standardl.c: Likewise. * sysdeps/ieee754/ldbl-128/w_expl_compat.c: Likewise. * sysdeps/ieee754/ldbl-128ibm/w_expl_compat.c: Likewise. * sysdeps/ieee754/ldbl-96/w_expl_compat.c: Likewise. * sysdeps/powerpc/powerpc32/power4/fpu/w_sqrt_compat.S: Likewise. * sysdeps/powerpc/powerpc32/power4/fpu/w_sqrtf_compat.S: Likewise. * sysdeps/powerpc/powerpc32/power5/fpu/w_sqrt_compat.S: Likewise. * sysdeps/powerpc/powerpc32/power5/fpu/w_sqrtf_compat.S: Likewise. * sysdeps/sparc/sparc32/fpu/w_sqrt_compat.S: Likewise. * sysdeps/sparc/sparc32/fpu/w_sqrtf_compat.S: Likewise. * sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/w_sqrt_compat-vis3.S: Likewise. * sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/w_sqrtf_compat-vis3.S: Likewise. * sysdeps/sparc/sparc32/sparcv9/fpu/w_sqrt_compat.S: Likewise. * sysdeps/sparc/sparc32/sparcv9/fpu/w_sqrtf_compat.S: Likewise. * sysdeps/sparc/sparc64/fpu/w_sqrt_compat.S: Likewise. * sysdeps/sparc/sparc64/fpu/w_sqrtf_compat.S: Likewise.
2017-06-26Add float128 support for ia64.Joseph Myers
This patch enables float128 support for ia64, so that all the configurations where GCC supports _Float128 / __float128 as an ABI-distinct type now have glibc support as well. bits/floatn.h declares the support to be available for GCC 4.4 and later, which is when the libgcc support was added. The removal of sysdeps/ia64/fpu/k_rem_pio2.c is because the generic k_rem_pio2.c defines a function required by the float128 code. Tested (compilation only) with build-many-glibcs.py for ia64 (GCC 6 and GCC 7). Given how long it is since libm-test-ulps has been updated for ia64, I think truncating the file and regenerating it from scratch would be a good idea when doing a regeneration to add float128 ulps. I expect various ia64 libm issues (at least some already filed in Bugzilla) to result in test failures even after ulps regeneration, but hopefully the float128 code will pass tests as it's the same as used on other architectures. * sysdeps/ia64/Implies: Add ieee754/float128. * sysdeps/ia64/bits/floatn.h: New file. * sysdeps/ia64/float128-abi.h: Likewise. * manual/math.texi (Mathematics): Document support for _Float128 on ia64. * sysdeps/ia64/Makefile [$(subdir) = math] (CPPFLAGS): Append to Makefile variable. * sysdeps/ia64/fpu/e_sqrtf128.c: New file. * sysdeps/ia64/fpu/k_rem_pio2.c: Remove file. * sysdeps/ia64/fpu/sfp-machine.h: New file. Based on libgcc. * sysdeps/ia64/math-tests.h: New file. * math/libm-test-support.h (XFAIL_FLOAT128_PAYLOAD): Also define based on TEST_COND_binary128 for [__ia64__]. * sysdeps/unix/sysv/linux/ia64/libc.abilist: Update. * sysdeps/unix/sysv/linux/ia64/libm.abilist: Likewise,
2017-05-11Suppress internal declarations for most of the testsuite.Zack Weinberg
This patch adds a new build module called 'testsuite'. IS_IN (testsuite) implies _ISOMAC, as do IS_IN_build and __cplusplus (which means several ad-hoc tests for __cplusplus can go away). libc-symbols.h now suppresses almost all of *itself* when _ISOMAC is defined; in particular, _ISOMAC mode does not get config.h automatically anymore. There are still quite a few tests that need to see internal gunk of one variety or another. For them, we now have 'tests-internal' and 'test-internal-extras'; files in this category will still be compiled with MODULE_NAME=nonlib, and everything proceeds as it always has. The bulk of this patch is moving tests from 'tests' to 'tests-internal'. There is also 'tests-static-internal', which has the same effect on files in 'tests-static', and 'modules-names-tests', which has the *inverse* effect on files in 'modules-names' (it's inverted because most of the things in modules-names are *not* tests). For both of these, the file must appear in *both* the new variable and the old one. There is also now a special case for when libc-symbols.h is included without MODULE_NAME being defined at all. (This happens during the creation of libc-modules.h, and also when preprocessing Versions files.) When this happens, IS_IN is set to be always false and _ISOMAC is *not* defined, which was the status quo, but now it's explicit. The remaining changes to C source files in this patch seemed likely to cause problems in the absence of the main change. They should be relatively self-explanatory. In a few cases I duplicated a definition from an internal header rather than move the test to tests-internal; this was a judgement call each time and I'm happy to change those however reviewers feel is more appropriate. * Makerules: New subdir configuration variables 'tests-internal' and 'test-internal-extras'. Test files in these categories will still be compiled with MODULE_NAME=nonlib. Test files in the existing categories (tests, xtests, test-srcs, test-extras) are now compiled with MODULE_NAME=testsuite. New subdir configuration variable 'modules-names-tests'. Files which are in both 'modules-names' and 'modules-names-tests' will be compiled with MODULE_NAME=testsuite instead of MODULE_NAME=extramodules. (gen-as-const-headers): Move to tests-internal. (do-tests-clean, common-mostlyclean): Support tests-internal. * Makeconfig (built-modules): Add testsuite. * Makefile: Change libof-check-installed-headers-c and libof-check-installed-headers-cxx to 'testsuite'. * Rules: Likewise. Support tests-internal. * benchtests/strcoll-inputs/filelist#en_US.UTF-8: Remove extra-modules.mk. * config.h.in: Don't check for __OPTIMIZE__ or __FAST_MATH__ here. * include/libc-symbols.h: Move definitions of _GNU_SOURCE, PASTE_NAME, PASTE_NAME1, IN_MODULE, IS_IN, and IS_IN_LIB to the very top of the file and rationalize their order. If MODULE_NAME is not defined at all, define IS_IN to always be false, and don't define _ISOMAC. If any of IS_IN (testsuite), IS_IN_build, or __cplusplus are true, define _ISOMAC and suppress everything else in this file, starting with the inclusion of config.h. Do check for inappropriate definitions of __OPTIMIZE__ and __FAST_MATH__ here, but only if _ISOMAC is not defined. Correct some out-of-date commentary. * include/math.h: If _ISOMAC is defined, undefine NO_LONG_DOUBLE and _Mlong_double_ before including math.h. * include/string.h: If _ISOMAC is defined, don't expose _STRING_ARCH_unaligned. Move a comment to a more appropriate location. * include/errno.h, include/stdio.h, include/stdlib.h, include/string.h * include/time.h, include/unistd.h, include/wchar.h: No need to check __cplusplus nor use __BEGIN_DECLS/__END_DECLS. * misc/sys/cdefs.h (__NTHNL): New macro. * sysdeps/m68k/m680x0/fpu/bits/mathinline.h (__m81_defun): Use __NTHNL to avoid errors with GCC 6. * elf/tst-env-setuid-tunables.c: Include config.h with _LIBC defined, for HAVE_TUNABLES. * inet/tst-checks-posix.c: No need to define _ISOMAC. * intl/tst-gettext2.c: Provide own definition of N_. * math/test-signgam-finite-c99.c: No need to define _ISOMAC. * math/test-signgam-main.c: No need to define _ISOMAC. * stdlib/tst-strtod.c: Convert to test-driver. Split locale_test to... * stdlib/tst-strtod1i.c: ...this new file. * stdlib/tst-strtod5.c: Convert to test-driver and add copyright notice. Split tests of __strtod_internal to... * stdlib/tst-strtod5i.c: ...this new file. * string/test-string.h: Include stdint.h. Duplicate definition of inhibit_loop_to_libcall here (from libc-symbols.h). * string/test-strstr.c: Provide dummy definition of libc_hidden_builtin_def when including strstr.c. * sysdeps/ia64/fpu/libm-symbols.h: Suppress entire file in _ISOMAC mode; no need to test __STRICT_ANSI__ nor __cplusplus as well. * sysdeps/x86_64/fpu/math-tests-arch.h: Include cpu-features.h. Don't include init-arch.h. * sysdeps/x86_64/multiarch/test-multiarch.h: Include cpu-features.h. Don't include init-arch.h. * elf/Makefile: Move tst-ptrguard1-static, tst-stackguard1-static, tst-tls1-static, tst-tls2-static, tst-tls3-static, loadtest, unload, unload2, circleload1, neededtest, neededtest2, neededtest3, neededtest4, tst-tls1, tst-tls2, tst-tls3, tst-tls6, tst-tls7, tst-tls8, tst-dlmopen2, tst-ptrguard1, tst-stackguard1, tst-_dl_addr_inside_object, and all of the ifunc tests to tests-internal. Don't add $(modules-names) to test-extras. * inet/Makefile: Move tst-inet6_scopeid_pton to tests-internal. Add tst-deadline to tests-static-internal. * malloc/Makefile: Move tst-mallocstate and tst-scratch_buffer to tests-internal. * misc/Makefile: Move tst-atomic and tst-atomic-long to tests-internal. * nptl/Makefile: Move tst-typesizes, tst-rwlock19, tst-sem11, tst-sem12, tst-sem13, tst-barrier5, tst-signal7, tst-tls3, tst-tls3-malloc, tst-tls5, tst-stackguard1, tst-sem11-static, tst-sem12-static, and tst-stackguard1-static to tests-internal. Link tests-internal with libpthread also. Don't add $(modules-names) to test-extras. * nss/Makefile: Move tst-field to tests-internal. * posix/Makefile: Move bug-regex5, bug-regex20, bug-regex33, tst-rfc3484, tst-rfc3484-2, and tst-rfc3484-3 to tests-internal. * stdlib/Makefile: Move tst-strtod1i, tst-strtod3, tst-strtod4, tst-strtod5i, tst-tls-atexit, and tst-tls-atexit-nodelete to tests-internal. * sunrpc/Makefile: Move tst-svc_register to tests-internal. * sysdeps/powerpc/Makefile: Move test-get_hwcap and test-get_hwcap-static to tests-internal. * sysdeps/unix/sysv/linux/Makefile: Move tst-setgetname to tests-internal. * sysdeps/x86_64/fpu/Makefile: Add all libmvec test modules to modules-names-tests.
2017-02-25Allow direct use of math_ldbl.h in testsuite.Zack Weinberg
A few 'long double'-related tests include math_private.h just for their variety of math_ldbl.h, which contains macros for assembling and disassembling the binary representation of 'long double'. math_ldbl.h insists on being included from math_private.h, but if we relax this restriction (and fix some portability sloppiness) we can use it directly and not have to expose all of math_private.h to the testsuite. * sysdeps/generic/math_private.h: Use __BIG_ENDIAN and __LITTLE_ENDIAN, not BIG_ENDIAN and LITTLE_ENDIAN. * sysdeps/generic/math_ldbl.h * sysdeps/ia64/fpu/math_ldbl.h * sysdeps/ieee754/ldbl-128/math_ldbl.h * sysdeps/ieee754/ldbl-128ibm/math_ldbl.h * sysdeps/ieee754/ldbl-96/math_ldbl.h * sysdeps/powerpc/fpu/math_ldbl.h * sysdeps/x86_64/fpu/math_ldbl.h: Allow direct inclusion. Use uintNN_t instead of u_intNN_t. Use __BIG_ENDIAN and __LITTLE_ENDIAN, not BIG_ENDIAN and LITTLE_ENDIAN. Include endian.h and/or stdint.h if necessary. Add copyright notices. * sysdeps/ieee754/ldbl-128ibm/math_ldbl.h (ldbl_canonicalize_int): Don't use EXTRACT_WORDS64. * sysdeps/ieee754/ldbl-96/test-canonical-ldbl-96.c * sysdeps/ieee754/ldbl-96/test-totalorderl-ldbl-96.c * sysdeps/ieee754/ldbl-128ibm/test-canonical-ldbl-128ibm.c * sysdeps/ieee754/ldbl-128ibm/test-totalorderl-ldbl-128ibm.c: Include math_ldbl.h, not math_private.h.
2017-02-08Move w_exp to libm-compat-call-autoGabriel F. T. Gomes
This patch adds the "_compat" suffix to the wrappers of the function exp, which use _LIB_VERSION / matherr / __kernel_standard functionality. Tested for powerpc64le, s390, and x86_64. * math/Makefile (libm-calls): Move w_exp... (libm-compat-calls-auto): Here. * math/w_expl.c: Add suffix "_compat" to filename. * sysdeps/ia64/fpu/w_expl.c: Likewise. * sysdeps/ia64/fpu/w_expf.c: Likewise. * sysdeps/ia64/fpu/w_exp.c: Likewise. * sysdeps/ieee754/dbl-64/w_exp.c: Likewise. * sysdeps/ieee754/flt-32/w_expf.c: Likewise. * sysdeps/ieee754/ldbl-128/w_expl.c: Likewise. * sysdeps/ieee754/ldbl-128ibm/w_expl.c: Likewise. * sysdeps/ieee754/ldbl-96/w_expl.c: Likewise. * math/w_expl_compat.c: New file, copied from above. * sysdeps/ia64/fpu/w_exp_compat.c: Likewise. * sysdeps/ia64/fpu/w_expf_compat.c: Likewise. * sysdeps/ia64/fpu/w_expl_compat.c: Likewise. * sysdeps/ieee754/dbl-64/w_exp_compat.c: Likewise. * sysdeps/ieee754/flt-32/w_expf_compat.c: Likewise. * sysdeps/ieee754/ldbl-128/w_expl_compat.c: Likewise. * sysdeps/ieee754/ldbl-128ibm/w_expl_compat.c: Likewise. * sysdeps/ieee754/ldbl-96/w_expl_compat.c: Likewise. * sysdeps/ieee754/ldbl-64-128/w_expl.c: Add suffix "_compat" to filename. * sysdeps/ieee754/ldbl-opt/w_exp.c: Likewise. * sysdeps/ieee754/ldbl-64-128/w_expl_compat.c: New file, copied from above and adjusted for the new filenames. * sysdeps/ieee754/ldbl-opt/w_exp_compat.c: Likewise.
2017-02-08Move w_lgamma_r to libm-compat-calls-autoGabriel F. T. Gomes
This patch adds the suffix "_compat" to lgamma_r wrappers and make some adjustments to #includes and Makefiles. This is a step towards deprecation of wrappers that use _LIB_VERSION / matherr / __kernel_standard functionality. Tested for powerpc64le, s390, and x86_64. * math/Makefile (libm-calls): Move w_lgammaF_r... (libm-compat-calls-auto): Here. * math/w_lgamma_r.c: Add suffix "_compat" to filename. * math/w_lgammaf_r.c: Likewise. * math/w_lgammal_r.c: Likewise. * sysdeps/ia64/fpu/w_lgammal_r.c: Likewise. * sysdeps/ia64/fpu/w_lgammaf_r.c: Likewise. * sysdeps/ia64/fpu/w_lgamma_r.c: Likewise. * math/w_lgamma_r_compat.c: New file, copied from above. * math/w_lgammaf_r_compat.c: Likewise. * math/w_lgammal_r_compat.c: Likewise. * sysdeps/ia64/fpu/w_lgamma_r_compat.c: Likewise. * sysdeps/ia64/fpu/w_lgammaf_r_compat.c: Likewise. * sysdeps/ia64/fpu/w_lgammal_r_compat.c: Likewise. * sysdeps/ieee754/ldbl-opt/w_lgamma_r.c: Add suffix "_compat" to filename. * sysdeps/ieee754/ldbl-opt/w_lgammal_r.c: Likewise. * sysdeps/ieee754/ldbl-opt/w_lgamma_r_compat.c: New file copied from above and adjusted for the new filenames. * sysdeps/ieee754/ldbl-opt/w_lgammal_r_compat.c: Likewise.
2017-01-20Remove very old libm-test-ulps entries.Joseph Myers
I noticed that some libm-test-ulps files still had long-obsolete entries for *_tonearest functions, which will no longer be used since functions with FE_TONEAREST explicitly set aren't tested separately from those functions with it as the default rounding mode any more. This patch removes those obsolete entries. However, as they are a sign of libm-test-ulps not having been regenerated from scratch for a long time, I strongly advise people testing on those platforms to remove / truncate the libm-test-ulps file, run "make regen-ulps" and commit the regenerated-from-scratch file. (Ideally any failures of libm tests still present after regeneration would be investigated / fixed - there are several open "math" bugs spread across these platforms - but simply regenerating from scratch improves things.) * sysdeps/hppa/fpu/libm-test-ulps: Remove *_tonearest entries. * sysdeps/ia64/fpu/libm-test-ulps: Likewise. * sysdeps/m68k/m680x0/fpu/libm-test-ulps: Likewise. * sysdeps/microblaze/libm-test-ulps: Likewise. * sysdeps/sh/libm-test-ulps: Likewise.
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