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2017-02-23Add new templates for IEEE wrappersGabriel F. T. Gomes
Several wrappers for IEEE functions use _LIB_VERSION / matherr / __kernel_standard functionality, which we want to obsolete. New wrappers, such as for float128, must not use this functionality. This patch adds new wrappers that only __set_errno and can be used by the new float128 wrappers. Tested for powerpc64le. * math/Makefile: Add wrappers to gen-libm-calls. * math/w_acos_template.c: New file. * math/w_acosh_template.c: Likewise. * math/w_asin_template.c: Likewise. * math/w_atan2_template.c: Likewise. * math/w_atanh_template.c: Likewise. * math/w_cosh_template.c: Likewise. * math/w_exp10_template.c: Likewise. * math/w_exp2_template.c: Likewise. * math/w_exp_template.c: Likewise. * math/w_fmod_template.c: Likewise. * math/w_hypot_template.c: Likewise. * math/w_j0_template.c: Likewise. * math/w_j1_template.c: Likewise. * math/w_jn_template.c: Likewise. * math/w_lgamma_r_template.c: Likewise. * math/w_lgamma_template.c: Likewise. * math/w_log10_template.c: Likewise. * math/w_log2_template.c: Likewise. * math/w_log_template.c: Likewise. * math/w_pow_template.c: Likewise. * math/w_remainder_template.c: Likewise. * math/w_sinh_template.c: Likewise. * math/w_sqrt_template.c: Likewise. * math/w_tgamma_template.c: Likewise.: Likewise. * sysdeps/generic/math-type-macros-double.h (__USE_WRAPPER_TEMPLATE): New macro to control inclusion of the new wrappers. * sysdeps/generic/math-type-macros-float.h: Likewise. * sysdeps/generic/math-type-macros-ldouble.h: Likewise.
2017-02-22Add TFD_TIMER_CANCEL_ON_SET to sys/timerfd.h.Joseph Myers
In Linux 4.10, timerfd constants moved to a new uapi header, which showed up that glibc's sys/timerfd.h is missing the old flag TFD_TIMER_CANCEL_ON_SET. This patch adds that flag to glibc's header. Tested for x86_64. * sysdeps/unix/sysv/linux/sys/timerfd.h (TFD_TIMER_CANCEL_ON_SET): New enum constant and macro.
2017-02-22Use Linux 4.10 in build-many-glibcs.py.Joseph Myers
* scripts/build-many-glibcs.py (Context.checkout): Default Linux kernel version to 4.10.
2017-02-21Add IP_RECVFRAGSIZE from Linux 4.10.Joseph Myers
Linux 4.10 adds a new IP_RECVFRAGSIZE macro to include/uapi/linux/in.h. This patch adds it to glibc's sysdeps/unix/sysv/linux/bits/in.h. Tested for x86_64. * sysdeps/unix/sysv/linux/bits/in.h (IP_RECVFRAGSIZE): New macro.
2017-02-21powerpc: Update powerpc-fpu libm-test-ulpsTulio Magno Quites Machado Filho
* sysdeps/powerpc/fpu/libm-test-ulps: Update.
2017-02-21powerpc: Add tests for __ppc_set_ppr_* functions.Wainer dos Santos Moschetta
The sys/platform/ppc.h header defines a class of __ppc_set_ppr functions used to set the Program Priority Register (PPR) in PowerPC. This patch implements test cases for these functions. Tested on ppc64le, ppc64, and ppc. * sysdeps/powerpc/tst-set_ppr.c: New file. Implement test cases for __ppc_set_ppr_* functions. * sysdeps/powerpc/Makefile ($(subdir),misc): Add tst-set_ppr in the list of tests.
2017-02-21powerpc: Convert tests to the new support test-driverWainer dos Santos Moschetta
Change the powerpc tests to use <support/test-driver.c>. Also replace some of pthread calls to its xpthread equivalent. Tested on ppc64le. * sysdeps/powerpc/test-get_hwcap.c: Use <support/test-driver.c> instead of test-skeleton.c. (do_test): Replaced pthread_create and pthread_join with xpthread_create and xpthread_join. Use TEST_VERIFY_EXIT macro. Removed unneeded status variable. * sysdeps/powerpc/test-gettimebase.c: Use <support/test-driver.c> instead of test-skeleton.c. * sysdeps/powerpc/tst-tlsopt-powerpc.c: Likewise.
2017-02-21Bug 20313: Update to Unicode 9.0.0Mike FABIAN
* Unicode 9.0.0 Support: Character encoding, character type info, and transliteration tables are all updated to Unicode 9.0.0, using generator scripts contributed by Mike FABIAN (Red Hat).
2017-02-20Remove some unused libm-test exception macros.Joseph Myers
This patch removes some libm-test-support.h macros for exceptions that are no longer used. EXCEPTIONS_OK has been unused for some time. The macros for underflow exceptions with some types only were used when the results for complex inverse trig and hyperbolic functions were manually maintained, but are no longer needed now the auto-libm-test machinery is used to determine the correct result and exceptions for every floating-point format and rounding mode. Tested for x86_64. * math/libm-test-support.h (EXCEPTIONS_OK): Remove macro. (UNDERFLOW_EXCEPTION_FLOAT): Likewise. (UNDERFLOW_EXCEPTION_OK_FLOAT): Likewise. (UNDERFLOW_EXCEPTION_DOUBLE): Likewise. (UNDERFLOW_EXCEPTION_OK_DOUBLE): Likewise. (UNDERFLOW_EXCEPTION_LDOUBLE_IBM): Likewise.
2017-02-19One more obvious missing #include in the testsuite.Zack Weinberg
* rt/tst-mqueue4.c: Include stdint.h.
2017-02-17Update arm, mips, powerpc-nofpu libm-test-ulps.Joseph Myers
* sysdeps/arm/libm-test-ulps: Update. * sysdeps/mips/mips32/libm-test-ulps: Likewise. * sysdeps/mips/mips64/libm-test-ulps: Likewise. * sysdeps/powerpc/nofpu/libm-test-ulps: Likewise.
2017-02-17Rework -fno-omit-frame-pointer support on i386Adhemerval Zanella
Commit 6b1df8b27f fixed the -OS build issue on i386 (BZ#20729) by expliciting disabling frame pointer (-fomit-frame-pointer) on the faulty objects. Although it does fix the issue, it is a subpar workaround that adds complexity in build process (a rule for each object to add the required compiler option and pontentially more rules for objects that call {INLINE,INTERNAL}_SYSCALL) and does not allow the implementations to get all the possible debug/calltrack information possible (used mainly in debuggers and performance measurement tools). This patch fixes it by adding an explicit configure check to see if -fno-omit-frame-pointer is set and to act accordingly (set or not OPTIMIZE_FOR_GCC_5). The make rules is simplified and only one is required: to add libc-do-syscall on loader due mmap (which will be empty anyway for default build with -fomit-frame-pointer). Checked on i386-linux-gnu with GCC 6.2.1 with CFLAGS sets as '-Os', '-O2 -fno-omit-frame-pointer', and '-O2 -fomit-frame-pointer'. For '-Os' the testsuite issues described by BZ#19463 and BZ#15105 still applied. It fixes BZ #21029, although it is marked as duplicated of #20729 (I reopened to track this cleanup). [BZ #21029] * config.h.in [CAN_USE_REGISTER_ASM_EBP]: New define. * sysdeps/unix/sysv/linux/i386/Makefile [$(subdir) = elf] (sysdep-dl-routines): Add libc-do-syscall. (uses-6-syscall-arguments): Remove. [$(subdir) = misc] (CFLAGS-epoll_pwait.o): Likewise. [$(subdir) = misc] (CFLAGS-epoll_pwait.os): Likewise. [$(subdir) = misc] (CFLAGS-mmap.o): Likewise. [$(subdir) = misc] (CFLAGS-mmap.os): Likewise. [$(subdir) = misc] (CFLAGS-mmap64.o): Likewise. [$(subdir) = misc] (CFLAGS-mmap64.os): Likewise. [$(subdir) = misc] (CFLAGS-pselect.o): Likewise. [$(subdir) = misc] (cflags-pselect.o): Likewise. [$(subdir) = misc] (cflags-pselect.os): Likewise. [$(subdir) = misc] (cflags-rtld-mmap.os): Likewise. [$(subdir) = sysvipc] (cflags-semtimedop.o): Likewise. [$(subdir) = sysvipc] (cflags-semtimedop.os): Likewise. [$(subdir) = io] (CFLAGS-posix_fadvise64.o): Likewise. [$(subdir) = io] (CFLAGS-posix_fadvise64.os): Likewise. [$(subdir) = io] (CFLAGS-posix_fallocate.o): Likewise. [$(subdir) = io] (CFLAGS-posix_fallocate.os): Likewise. [$(subdir) = io] (CFLAGS-posix_fallocate64.o): Likewise. [$(subdir) = io] (CFLAGS-posix_fallocate64.os): Likewise. [$(subdir) = io] (CFLAGS-sync_file_range.o): Likewise. [$(subdir) = io] (CFLAGS-sync_file_range.os): Likewise. [$(subdir) = io] (CFLAGS-fallocate.o): Likewise. [$(subdir) = io] (CFLAGS-fallocate.os): Likewise. [$(subdir) = io] (CFLAGS-fallocate64.o): Likewise. [$(subdir) = io] (CFLAGS-fallocate64.os): Likewise. [$(subdir) = nptl] (CFLAGS-pthread_rwlock_timedrdlock.o): Likewise. [$(subdir) = nptl] (CFLAGS-pthread_rwlock_timedrdlock.os): Likewise. [$(subdir) = nptl] (CFLAGS-pthread_rwlock_timedrwlock.o): Likewise. [$(subdir) = nptl] (CFLAGS-pthread_rwlock_timedrwlock.os): Likewise. [$(subdir) = nptl] (CFLAGS-sem_wait.o): Likewise. [$(subdir) = nptl] (CFLAGS-sem_wait.os): Likewise. [$(subdir) = nptl] (CFLAGS-sem_timedwait.o): Likewise. [$(subdir) = nptl] (CFLAGS-sem_timedwait.os): Likewise. * sysdeps/unix/sysv/linux/i386/configure.ac: Add check if compiler allows ebp on inline assembly. * sysdeps/unix/sysv/linux/i386/configure: Regenerate. * sysdeps/unix/sysv/linux/i386/sysdep.h (OPTIMIZE_FOR_GCC_5): Set if CAN_USE_REGISTER_ASM_EBP is set. (check_consistency): Likewise.
2017-02-17Use index_cpu_RTM and reg_RTM to clear the bit_cpu_RTM bitH.J. Lu
* sysdeps/x86/cpu-features.c (init_cpu_features): Use index_cpu_RTM and reg_RTM to clear the bit_cpu_RTM bit.
2017-02-17Move tests of catan, catanh to auto-libm-test-*.Joseph Myers
This patch moves tests of catan and catanh with finite inputs (other than the divide-by-zero cases producing an exact infinity) to using the auto-libm-test machinery. Each of auto-libm-test-out-catan and auto-libm-test-out-catanh takes about three seconds to generate on my system (so in fact it wasn't necessary after all to defer the move to auto-libm-test-* until the output files were split up by function). Tested for x86_64 and x86 and ulps updated accordingly. * math/auto-libm-test-in: Add tests of catan and catanh. * math/auto-libm-test-out-catan: New generated file. * math/auto-libm-test-out-catanh: Likewise. * math/libm-test-catan.inc (catan_test_data): Use AUTO_TESTS_c_c. Move tests with finite inputs, except divide-by-zero cases, to auto-libm-test-in. * math/libm-test-catanh.inc (catanh_test_data): Likewise. * math/Makefile (libm-test-funcs-auto): Add catan and catanh. (libm-test-funcs-noauto): Remove catan and catanh. * sysdeps/i386/fpu/libm-test-ulps: Update. * sysdeps/i386/i686/fpu/multiarch/libm-test-ulps: Likewise. * sysdeps/x86_64/fpu/libm-test-ulps: Likewise.
2017-02-17Move tests of casin, casinh to auto-libm-test-*.Joseph Myers
This patch moves tests of casin and casinh with finite inputs to using the auto-libm-test machinery. Each of auto-libm-test-out-casin and auto-libm-test-out-casinh takes about 38 minutes to generate on my system because of MPC slowness on special cases that appear in the tests (with MPC 1.0.3; I don't know to what extent current MPC master might speed it up). Tested for x86_64 and x86 and ulps updated accordingly. * math/auto-libm-test-in: Add tests of casin and casinh. * math/auto-libm-test-out-casin: New generated file. * math/auto-libm-test-out-casinh: Likewise. * math/libm-test-casin.inc (casin_test_data): Use AUTO_TESTS_c_c. Move tests with finite inputs to auto-libm-test-in. * math/libm-test-casinh.inc (casinh_test_data): Likewise. * math/Makefile (libm-test-funcs-auto): Add casin and casinh. (libm-test-funcs-noauto): Remove casin and casinh. * sysdeps/i386/fpu/libm-test-ulps: Update. * sysdeps/i386/i686/fpu/multiarch/libm-test-ulps: Likewise. * sysdeps/x86_64/fpu/libm-test-ulps: Likewise.
2017-02-17Move tests of cacos, cacosh to auto-libm-test-*.Joseph Myers
This patch moves tests of cacos and cacosh with finite inputs to using the auto-libm-test machinery. Each of auto-libm-test-out-cacos and auto-libm-test-out-cacosh takes about 80 minutes to generate on my system because of MPC slowness on special cases that appear in the tests (with MPC 1.0.3; I don't know to what extent current MPC master might speed it up). Tested for x86_64 and x86 and ulps updated accordingly. * math/auto-libm-test-in: Add tests of cacos and cacosh. * math/auto-libm-test-out-cacos: New generated file. * math/auto-libm-test-out-cacosh: Likewise. * math/libm-test-cacos.inc (cacos_test_data): Use AUTO_TESTS_c_c. Move tests with finite inputs to auto-libm-test-in. * math/libm-test-cacosh.inc (cacosh_test_data): Likewise. * math/Makefile (libm-test-funcs-auto): Add cacos and cacosh. (libm-test-funcs-noauto): Remove cacos and cacosh. * sysdeps/i386/fpu/libm-test-ulps: Update. * sysdeps/i386/i686/fpu/multiarch/libm-test-ulps: Likewise. * sysdeps/x86_64/fpu/libm-test-ulps: Likewise.
2017-02-17Revert header inclusion changes that break math/ testing on x86_64.Joseph Myers
Revert: 2017-02-16 Zack Weinberg <zackw@panix.com> * 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.
2017-02-17Fix lgamma*, log10* and log2* results [BZ #21171]Tulio Magno Quites Machado Filho
lgamma(-x) should return +Inf and raise divide-by-zero. log10(+-0) and log2(+-0) should return -Inf and raise divide-by-zero. Tested on powerpc, powerpc64, powerpc64le and x86_64. [BZ #21171] * sysdeps/ieee754/dbl-64/e_lgamma_r.c (__ieee754_lgamma_r): Return +Inf and raise divide-by-zero when x is negative. * sysdeps/ieee754/flt-32/e_lgammaf_r.c (__ieee754_lgammaf_r): Likewise. * sysdeps/ieee754/ldbl-128/e_lgammal_r.c (__ieee754_lgammal_r): Likewise. * sysdeps/ieee754/dbl-64/e_log10.c (__ieee754_log10): Return -Inf and raise divide-by-zero when x = +-0. * sysdeps/ieee754/dbl-64/e_log2.c (__ieee754_log2): Likewise. * sysdeps/ieee754/flt-32/e_log10f.c (__ieee754_log10f): Likewise. * sysdeps/ieee754/flt-32/e_log2f.c (__ieee754_log2f): Likewise. * sysdeps/ieee754/ldbl-128/e_log10l.c (__ieee754_log10l): Likewise. * sysdeps/ieee754/ldbl-128/e_log2l.c (__ieee754_log2l): Likewise. * sysdeps/ieee754/ldbl-128ibm/e_log10l.c (__ieee754_log10l): Likewise. * sysdeps/ieee754/ldbl-128ibm/e_log2l.c (__ieee754_log2l): Likewise.
2017-02-16build-many-glibcs: don't crash if email is not configuredZack Weinberg
The 'bot-cycle' action for build-many-glibcs is a convenient way to not have to remember all the steps in keeping a many-glibcs tree up to date ... or it would be, if the script could send mail _optionally_. Make it so by skipping the mail step if mail isn't configured. * scripts/build-many-glibcs.py (bot_build_mail): If the bot_config does not contain all of the necessary email- related settings, just print a warning and continue.
2017-02-16Add missing header files throughout the testsuite.Zack Weinberg
* crypt/md5.h: Test _LIBC with #if defined, not #if. * dirent/opendir-tst1.c: Include sys/stat.h. * dirent/tst-fdopendir.c: Include sys/stat.h. * dirent/tst-fdopendir2.c: Include stdlib.h. * dirent/tst-scandir.c: Include stdbool.h. * elf/tst-auditmod1.c: Include link.h and stddef.h. * elf/tst-tls15.c: Include stdlib.h. * elf/tst-tls16.c: Include stdlib.h. * elf/tst-tls17.c: Include stdlib.h. * elf/tst-tls18.c: Include stdlib.h. * iconv/tst-iconv6.c: Include endian.h. * iconvdata/bug-iconv11.c: Include limits.h. * io/test-utime.c: Include stdint.h. * io/tst-faccessat.c: Include sys/stat.h. * io/tst-fchmodat.c: Include sys/stat.h. * io/tst-fchownat.c: Include sys/stat.h. * io/tst-fstatat.c: Include sys/stat.h. * io/tst-futimesat.c: Include sys/stat.h. * io/tst-linkat.c: Include sys/stat.h. * io/tst-mkdirat.c: Include sys/stat.h and stdbool.h. * io/tst-mkfifoat.c: Include sys/stat.h and stdbool.h. * io/tst-mknodat.c: Include sys/stat.h and stdbool.h. * io/tst-openat.c: Include stdbool.h. * io/tst-readlinkat.c: Include sys/stat.h. * io/tst-renameat.c: Include sys/stat.h. * io/tst-symlinkat.c: Include sys/stat.h. * io/tst-unlinkat.c: Include stdbool.h. * libio/bug-memstream1.c: Include stdlib.h. * libio/bug-wmemstream1.c: Include stdlib.h. * libio/tst-fwrite-error.c: Include stdlib.h. * libio/tst-memstream1.c: Include stdlib.h. * libio/tst-memstream2.c: Include stdlib.h. * libio/tst-memstream3.c: Include stdlib.h. * malloc/tst-interpose-aux.c: Include stdint.h. * misc/tst-preadvwritev-common.c: Include sys/stat.h. * nptl/tst-basic7.c: Include limits.h. * nptl/tst-cancel25.c: Include pthread.h, not pthreadP.h. * nptl/tst-cancel4.c: Include stddef.h, limits.h, and sys/stat.h. * nptl/tst-cancel4_1.c: Include stddef.h. * nptl/tst-cancel4_2.c: Include stddef.h. * nptl/tst-cond16.c: Include limits.h. Use sysconf(_SC_PAGESIZE) instead of __getpagesize. * nptl/tst-cond18.c: Include limits.h. Use sysconf(_SC_PAGESIZE) instead of __getpagesize. * nptl/tst-cond4.c: Include stdint.h. * nptl/tst-cond6.c: Include stdint.h. * nptl/tst-stack2.c: Include limits.h. * nptl/tst-stackguard1.c: Include stddef.h. * nptl/tst-tls4.c: Include stdint.h. Don't include tls.h. * nptl/tst-tls4moda.c: Include stddef.h. Don't include stdio.h, unistd.h, or tls.h. * nptl/tst-tls4modb.c: Include stddef.h. Don't include stdio.h, unistd.h, or tls.h. * nptl/tst-tls5.h: Include stddef.h. Don't include stdlib.h or tls.h. * posix/tst-getaddrinfo2.c: Include stdio.h. * posix/tst-getaddrinfo5.c: Include stdio.h. * posix/tst-pathconf.c: Include sys/stat.h. * posix/tst-posix_fadvise-common.c: Include stdint.h. * posix/tst-preadwrite-common.c: Include sys/stat.h. * posix/tst-regex.c: Include stdint.h. Don't include spawn.h or spawn_int.h. * posix/tst-regexloc.c: Don't include spawn.h or spawn_int.h. * posix/tst-vfork3.c: Include sys/stat.h. * resolv/tst-bug18665-tcp.c: Include stdlib.h. * resolv/tst-res_hconf_reorder.c: Include stdlib.h. * resolv/tst-resolv-search.c: Include stdlib.h. * stdio-common/tst-fmemopen2.c: Include stdint.h. * stdio-common/tst-vfprintf-width-prec.c: Include stdlib.h. * stdlib/test-canon.c: Include sys/stat.h. * stdlib/tst-tls-atexit.c: Include stdbool.h. * string/test-memchr.c: Include stdint.h. * string/tst-cmp.c: Include stdint.h. * sysdeps/pthread/tst-timer.c: Include stdint.h. * sysdeps/unix/sysv/linux/tst-sync_file_range.c: Include stdint.h. * sysdeps/wordsize-64/tst-writev.c: Include limits.h and stdint.h. * 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. * sysdeps/x86_64/tst-auditmod10b.c: Include link.h and stddef.h. * sysdeps/x86_64/tst-auditmod3b.c: Include link.h and stddef.h. * sysdeps/x86_64/tst-auditmod4b.c: Include link.h and stddef.h. * sysdeps/x86_64/tst-auditmod5b.c: Include link.h and stddef.h. * sysdeps/x86_64/tst-auditmod6b.c: Include link.h and stddef.h. * sysdeps/x86_64/tst-auditmod6c.c: Include link.h and stddef.h. * sysdeps/x86_64/tst-auditmod7b.c: Include link.h and stddef.h. * time/clocktest.c: Include stdint.h. * time/tst-posixtz.c: Include stdint.h. * timezone/tst-timezone.c: Include stdint.h.
2017-02-16ChangeLog entry for previous changesetZack Weinberg
2017-02-16Move bits/types.h into posix/bits.Zack Weinberg
bits/types.h has no sysdeps variants, so it should be in the subdirectory that installs it (namely, posix). * bits/types.h: Move to posix/bits. * include/bits/types.h: New wrapper.
2017-02-15Remove the str(n)cmp inlines from string/bits/string2.h. The strncmpWilco Dijkstra
optimization seems unlikely to ever be useful, but if it occurs in real code it should be added to GCC. Expanding strcmp of small strings does appear useful (benchmarking shows it is 2-3x faster), so this would be useful to implement in GCC (PR 78809). * string/bits/string2.h (strcmp): Remove define. (__strcmp_cg): Likewise. (strncmp): Likewise.
2017-02-15The internal header include/string.h does not work in C++: it causes link errorsWilco Dijkstra
in several C++ debug tests when any of the functions it declares are called. The best option would be to not use internal headers for tests (unless explicitly needed). Add guards so that it is safe to use include/string.h from C++. * include/string.h: Add __cplusplus check.
2017-02-15Fix y0 and y1 exception handling for zero input [BZ #21134]Gabriel F. T. Gomes
The Bessel functions of the second type (Yn) should raise the "divide by zero" exception when input is zero (both positive and negative). Current code gives the right output, but fails to set the exception. This error is exposed for float, double, and long double when linking with -lieee. Without this flag, the error is not exposed, because the wrappers for these functions, which use __kernel_standard functionality, set the exception as expected. Tested for powerpc64le. [BZ #21134] * sysdeps/ieee754/dbl-64/e_j0.c (__ieee754_y0): Raise the "divide by zero" exception when the input is zero. * sysdeps/ieee754/dbl-64/e_j1.c (__ieee754_y1): Likewise. * sysdeps/ieee754/flt-32/e_j0f.c (__ieee754_y0f): Likewise. * sysdeps/ieee754/flt-32/e_j1f.c (__ieee754_y1f): Likewise. * sysdeps/ieee754/ldbl-128/e_j0l.c (__ieee754_y0l): Likewise. * sysdeps/ieee754/ldbl-128/e_j1l.c (__ieee754_y1l): Likewise.
2017-02-15Move most libmvec test contents from .c to .h files.Joseph Myers
The libmvec tests put substantive, architecture-specific contents in .c files such as test-double-vlen4.c, so making those files architecture-specific and causing issues for generating such files automatically when splitting up tests by function. This patch moves all the substantive contents to .h files, so the .c files only include the .h file and then libm-test.c. This allows for automatic generation of per-function .c files in future. The .h files in turn #include or #include_next the architecture-independent file and add the architecture-specific definitions to that. (Splitting by function should in fact allow the TEST_VECTOR_* macros to be replaced by sysdeps makefile information on which functions to test in each case, removing the need for gen-libm-have-vector-test.sh as well as removing the need for some of the architecture-specific headers.) Tested for x86_64. * sysdeps/x86_64/fpu/test-double-vlen2.c: Move most contents to, and include ... * sysdeps/x86_64/fpu/test-double-vlen2.h: ... here. New file. * sysdeps/x86_64/fpu/test-double-vlen4-avx2.c: Move most contents to, and include ... * sysdeps/x86_64/fpu/test-double-vlen4-avx2.h: ... here. New file. * sysdeps/x86_64/fpu/test-double-vlen4.c: Move most contents to, and include ... * sysdeps/x86_64/fpu/test-double-vlen4.h: ... here. New file. * sysdeps/x86_64/fpu/test-double-vlen8.c: Move most contents to, and include ... * sysdeps/x86_64/fpu/test-double-vlen8.h: ... here. New file. * sysdeps/x86_64/fpu/test-float-vlen16.c: Move most contents to, and include ... * sysdeps/x86_64/fpu/test-float-vlen16.h: ... here. New file. * sysdeps/x86_64/fpu/test-float-vlen4.c: Move most contents to, and include ... * sysdeps/x86_64/fpu/test-float-vlen4.h: ... here. New file. * sysdeps/x86_64/fpu/test-float-vlen8-avx2.c: Move most contents to, and include ... * sysdeps/x86_64/fpu/test-float-vlen8-avx2.h: ... here. New file. * sysdeps/x86_64/fpu/test-float-vlen8.c: Move most contents to, and include ... * sysdeps/x86_64/fpu/test-float-vlen8.h: ... here. New file.
2017-02-14Move INIT_ARCH_EXT call from libm-test-support to libm-test-driver.Joseph Myers
libmvec tests involve calling INIT_ARCH_EXT during initialization then CHECK_ARCH_EXT before testing each function to see if the processor being used for testing supports the required instruction set extensions. After my refactoring of libm-test infrastructure, the INIT_ARCH_EXT call is in libm-test-support.c, built only once per floating-point type. Now, in fact all definitions of this macro are empty, but given that the definitions in sysdeps/x86_64/fpu/math-tests-arch.h are conditional on REQUIRE_* macros defined in particular vector tests, it seems more correct for the INIT_ARCH_EXT call to go instead in libm-test-driver.c which gets built separately with those REQUIRE_* macros properly defined. This patch moves the call there. Tested for x86_64 and x86. * math/libm-test-support.h: Do not include <math-tests-arch.h> here. * math/libm-test-support.c (libm_test_init): Do not call INIT_ARCH_EXT here. * math/libm-test-driver.c: Include <math-tests-arch.h>. (main): Call INIT_ARCH_EXT.
2017-02-12ldbl-128: Fix y0 and y1 for -Inf input [BZ #21130]Gabriel F. T. Gomes
The Bessel functions of the second type (Yn) are not defined for negative input and should return NAN with the "invalid" exception raised, in these cases. However, current code checks for infinity and return zero, regardless of the sign. This error is exposed for long double when linking with -lieee. Without this flag, the error is not exposed, because the wrappers for these functions, which use __kernel_standard functionality, return the correct value. Tested for powerpc64le. [BZ #21130] * sysdeps/ieee754/ldbl-128/e_j0l.c (__ieee754_y0l): Return NAN with the "invalid" exception raised when x is -Inf. * sysdeps/ieee754/ldbl-128/e_j1l.c (__ieee754_y1l): Likewise.
2017-02-10GLIBC uses strchr (s, '\0') as an idiom to find the end of a string.Wilco Dijkstra
This is transformed into rawmemchr by the bits/string2.h header. However this is generally slower than strlen on most targets, even when an optimized rawmemchr implementation exists. Since GCC7 optimizes strchr (s, '\0') to strlen (s) + s, the GLIBC headers should not transform this to rawmemchr. As GCC recognizes strchr as a builtin, defining strchr as the builtin is not useful. * string/bits/string2.h (strchr): Remove define.
2017-02-09x86-64: Verify that _dl_runtime_resolve preserves vector registersH.J. Lu
On x86-64, _dl_runtime_resolve must preserve the first 8 vector registers. Add 3 _dl_runtime_resolve tests to verify that SSE, AVX and AVX512 registers are preserved. * sysdeps/x86_64/Makefile (tests): Add tst-sse, tst-avx and tst-avx512. (test-extras): Add tst-avx-aux and tst-avx512-aux. (extra-test-objs): Add tst-avx-aux.o and tst-avx512-aux.o. (modules-names): Add tst-ssemod, tst-avxmod and tst-avx512mod. ($(objpfx)tst-sse): New rule. ($(objpfx)tst-avx): Likewise. ($(objpfx)tst-avx512): Likewise. (CFLAGS-tst-avx-aux.c): New. (CFLAGS-tst-avxmod.c): Likewise. (CFLAGS-tst-avx512-aux.c): Likewise. (CFLAGS-tst-avx512mod.c): Likewise. * sysdeps/x86_64/tst-avx-aux.c: New file. * sysdeps/x86_64/tst-avx.c: Likewise. * sysdeps/x86_64/tst-avx512-aux.c: Likewise. * sysdeps/x86_64/tst-avx512.c: Likewise. * sysdeps/x86_64/tst-avx512mod.c: Likewise. * sysdeps/x86_64/tst-avxmod.c: Likewise. * sysdeps/x86_64/tst-sse.c: Likewise. * sysdeps/x86_64/tst-ssemod.c: Likewise.
2017-02-09Move more csin, csinh tests to auto-libm-test-in.Joseph Myers
When I moved tests of csin and csinh to auto-libm-test-in, I didn't move a few tests for which gen-auto-libm-tests was very slow because of MPC slowness on certain inputs. Now that auto-libm-test-out has been split up, such slowness only affects regenerating the test expectations for the individual functions in question, rather than any addition of tests for any function to auto-libm-test-in. Thus, I no longer consider it a problem to have these inputs in auto-libm-test-in, and this patch moves them there. This results in test generation for csin and csinh taking 5m43s (for each of csin and csinh) on my system, while other functions are unaffected. I expect the test generation to be much faster in MPC 1.1 (the relevant performance improvements went in MPC mainline in Dec 2013, but there hasn't been a release from mainline since then). Tested for x86_64 and x86. * math/auto-libm-test-in: Add more tests of csin and csinh. * math/auto-libm-test-out-csin: Regenerated. * math/auto-libm-test-out-csinh: Likewise. * math/libm-test-csin.inc (csin_test_data): Remove tests moved to auto-libm-test-in. * math/libm-test-csinh.inc (csinh_test_data): Likewise.
2017-02-09Merge libm-compat-calls-auto and libm-compat-callsGabriel F. T. Gomes
Both libm-compat-calls and libm-compat-calls-auto list the functions that must be built for the types float, double, and long double, but not for other floating-point types that get added to libm. Besides that, the use of libm-compat-calls-ldouble-yes to select if w_lgamma_compatl and k_standardl should be built for long-double (in libm-compat-calls) has the same effect of the use of type-foreach (in libm-compat-calls-auto). This patch merges the contents of libm-compat-calls into libm-compat-calls-auto, then renames the latter to libm-compat-calls. Tested for powerpc64le, s390, and x86_64. * math/Makefile (libm-compat-calls-ldouble-yes): Merge into libm-compat-calls-auto. (libm-compat-calls): Likewise. (libm-compat-calls-auto): Rename to libm-compat-calls and add w_lgamma_compatF and k_standardF (merged from the items above). (libm-routines): Use libm-compat-calls, instead of libm-compat-calls-auto, with type-foreach.
2017-02-09Move -U__LIBC_INTERNAL_MATH_INLINES to test-math-inline.h.Joseph Myers
The libm tests of inline functions undefine __NO_MATH_INLINES (from math-CPPFLAGS) in test-math-inline.h, but __LIBC_INTERNAL_MATH_INLINES via -U options in the makefile. This is an odd inconsistency between the handling of the two macros. It also depends on the ordering (in compilation commands) of the various variables providing compiler options (which I think is why it's using CPPFLAGS-*.c instead of CFLAGS-*.c). This patch moves the undefine to test-math-inline.h, so improving consistency and eliminating the dependency on the order in which variables go in the compilation commands. The CPPFLAGS-*.c variables are renamed to CFLAGS-*.c, matching those for the non-inline libm function tests. By moving the -U option to the header file, this should ensure that ordering issues don't arise with a subsequent move of the options to these tests to target-specific CFLAGS += ... variable settings (for when tests for each function are build separately and so compilation options need setting for many more makefile targets, for which target-specific variable settings seem to be the most convenient form to generate with iterators). Tested for x86_64. * math/test-math-inline.h (__LIBC_INTERNAL_MATH_INLINES): Undefine macro. * math/Makefile (CPPFLAGS-test-ifloat.c): Rename to ... (CFLAGS-test-ifloat.c): ... this. Remove -U__LIBC_INTERNAL_MATH_INLINES. * math/Makefile (CPPFLAGS-test-idouble.c): Rename to ... (CFLAGS-test-idouble.c): ... this. Remove -U__LIBC_INTERNAL_MATH_INLINES. * math/Makefile (CPPFLAGS-test-ildouble.c): Rename to ... (CFLAGS-test-ildouble.c): ... this. Remove -U__LIBC_INTERNAL_MATH_INLINES.
2017-02-08Build most libm-test support code once per type.Joseph Myers
libm-test-driver.c contains various functions used in the course of libm testing, which are built as part of each test using this machinery. Currently, these functions get built for three tests for each type (e.g. test-float, test-ifloat, test-float-finite), plus the vector function tests. All these tests are huge and thus slow to build; the output of gen-libm-test.pl totals around 40 MB across all functions. To make the individual tests built from the Makefile smaller, it makes sense to split these tests up so the tests for each function are built separately (thus, three tests for each (function, type) pair, plus vector tests built only for functions that actually have vector versions). This improves parallelism and means that if tests fail, the summary of failed tests makes it more obvious where the problem might be without needing to look in the .out files to see which functions' tests failed (though architecture maintainers still need to keep libm-test-ulps up to date to avoid spurious failures of little interest). Simply including libm-test-driver.c as-is in such individual-function tests does not work because of unused static check_* functions (those functions only being used for the types of the outputs of the function under test). It also means the common code gets built over 1000 times instead of nine (plus vector tests). To avoid that issue, this patch splits out the bulk of the libm-test-driver.c code into a separate file libm-test-support.c (with a few functions made non-static). That separate file is built only once for each floating-point type (so at present three times, or twice on architectures with long double = double). Definitions needed in both libm-test-support.c and libm-test-driver.c go in libm-test-support.h (it's possible some of those are in fact only needed in one of the two files). libm-test-driver.c keeps definitions of a limited number of variables used to configure how libm-test-support.c behaves, various macros and structures needed by individual-function tests, and the main function. This move is also consistent in spirit with the move away from test-skeleton.c having all the test support code, to a small support/test-driver.c included in individual tests with most of the code built separately. Tested for x86_64 and x86. * math/libm-test-support.c: New file. Content from math/libm-test-driver.c. * math/libm-test-support.h: Likewise. * math/libm-test-support-double.c: New file. * math/libm-test-support-float.c: Likewise. * math/libm-test-support-ldouble.c: Likewise. * math/libm-test-driver.c: Remove main comment and header includes. Include libm-test-support.h. [!_GNU_SOURCE] (_GNU_SOURCE): Do not define. (flag_test_errno): Remove static. (flag_test_exceptions): Likewise. (flag_test_finite): Likewise. (flag_test_inline): Likewise. (flag_test_mathvec): Likewise. (test_msg): Likewise. (NO_EXCEPTION): Remove. (INVALID_EXCEPTION): Likewise. (DIVIDE_BY_ZERO_EXCEPTION): Likewise. (OVERFLOW_EXCEPTION): Likewise. (UNDERFLOW_EXCEPTION): Likewise. (INEXACT_EXCEPTION): Likewise. (INVALID_EXCEPTION_OK): Likewise. (DIVIDE_BY_ZERO_EXCEPTION_OK): Likewise. (OVERFLOW_EXCEPTION_OK): Likewise. (UNDERFLOW_EXCEPTION_OK): Likewise. (NO_INEXACT_EXCEPTION): Likewise. (EXCEPTIONS_OK): Likewise. (IGNORE_ZERO_INF_SIGN): Likewise. (TEST_NAN_SIGN): Likewise. (TEST_NAN_PAYLOAD): Likewise. (NO_TEST_INLINE): Likewise. (XFAIL_TEST): Likewise. (ERRNO_UNCHANGED): Likewise. (ERRNO_EDOM): Likewise. (ERRNO_ERANGE): Likewise. (IGNORE_RESULT): Likewise. (NON_FINITE): Likewise. (TEST_SNAN): Likewise. (NO_TEST_MATHVEC): Likewise. (__CONCATX): Likewise. (TYPE_MIN): Likewise. (TYPE_TRUE_MIN): Likewise. (TYPE_MAX): Likewise. (MIN_EXP): Likewise. (MAX_EXP): Likewise. (MANT_DIG): Likewise. (FSTR_MAX): Likewise. (ulp_idx): Likewise. (qtype_str): Remove static. (TEST_COND_binary32): Remove. (TEST_COND_binary64): Likewise. (TEST_COND_binary128): Likewise. (TEST_COND_ibm128): Likewise. (TEST_COND_intel96): Likewise. (TEST_COND_m68k96): Likewise. (TEST_COND_ibm128_libgcc): Likewise. (XFAIL_IBM128_LIBGCC): Likewise. (PAYLOAD_DIG): Likewise. (UNDERFLOW_EXCEPTION_FLOAT): Likewise. (UNDERFLOW_EXCEPTION_OK_FLOAT): Likewise. (UNDERFLOW_EXCEPTION_DOUBLE): Likewise. (UNDERFLOW_EXCEPTION_OK_DOUBLE): Likewise. (UNDERFLOW_EXCEPTION_LDOUBLE_IBM): Likewise. (UNDERFLOW_EXCEPTION_BEFORE_ROUNDING): Likewise. (TEST_COND_long32): Likewise. (TEST_COND_long64): Likewise. (TEST_COND_before_rounding): Likewise. (TEST_COND_after_rounding): Likewise. (ulps_file_name): Likewise. (ulps_file): Likewise. (output_ulps): Likewise. (output_dir): Likewise. (noErrors): Likewise. (noTests): Likewise. (noExcTests): Likewise. (noErrnoTests): Likewise. (verbose): Likewise. (output_max_error): Likewise. (output_points): Likewise. (ignore_max_ulp): Likewise. (max_error): Likewise. (real_max_error): Likewise. (imag_max_error): Likewise. (prev_max_error): Likewise. (prev_real_max_error): Likewise. (prev_imag_max_error): Likewise. (max_valid_error): Likewise. (TYPE_DECIMAL_DIG): Likewise. (TYPE_HEX_DIG): Likewise. (fmt_ftostr): Likewise. (compare_ulp_data): Likewise. (find_ulps): Likewise. (init_max_error): Likewise. (set_max_error): Likewise. (print_float): Likewise. (print_screen): Likewise. (print_screen_max_error): Likewise. (update_stats): Likewise. (print_function_ulps): Likewise. (print_complex_function_ulps): Likewise. (fpstack_test): Likewise. (print_max_error): Likewise. (print_complex_max_error): Likewise. (test_single_exception): Likewise. (test_exceptions): Likewise. (test_single_errno): Likewise. (test_errno): Likewise. (ULPDIFF): Likewise. (ulp): Likewise. (check_float_internal): Likewise. (check_float): Likewise. (check_complex): Likewise. (check_int): Likewise. (check_long): Likewise. (check_bool): Likewise. (check_longlong): Likewise. (check_intmax_t): Likewise. (check_uintmax_t): Likewise. (enable_test): Likewise. (matherr): Likewise. (initialize): Likewise. (options): Likewise. (doc): Remove static. (argp): Likewise. (parse_opt): Remove. (check_ulp): Likewise. (libm_test_init): Likewise. (libm_test_finish): Likewise. * math/Makefile (libm-test-support): New variable. (test-extras): Add libm-test-support files. (extra-test-objs): Likewise. (CFLAGS-libm-test-support-float.c): New variable. (CFLAGS-libm-test-support-double.c): Likewise. (CFLAGS-libm-test-support-ldouble.c): Likewise. ($(addprefix $(objpfx),$(libm-tests)): Depend on appropriate libm-test-support objects.
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 to libm-compat-calls-autoGabriel F. T. Gomes
This patch adds the suffix "_compat2" to the wrappers for lgamma, which use _LIB_VERSION / matherr / __kernel_standard functionality. The suffix "_compat2" is used because the suffix "_compat" is already used. Tested for powerpc64le, s390, and x86_64. * math/Makefile (libm-calls): Move w_lgammaF... (libm-compat-calls-auto): Here. * math/w_lgamma.c: Add suffix "_compat2" to filename. * math/w_lgammaf.c: Likewise. * math/w_lgammal.c: Likewise. * math/w_lgamma_compat2.c: New file, copied from above. * math/w_lgammaf_compat2.c: Likewise. * math/w_lgammal_compat2.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.
2017-02-08aarch64: fix errno address calculation in SYSCALL_ERROR_HANDLERAdhemerval Zanella
This patch fixes the last regression in LTP lite scenario (mmap16) comparing to lp64 in my source trees [1, 2]. The fix has been suggested back in 2015 [3] but was never applied. Checked on aarch64-linux-gnu. * sysdeps/unix/sysv/linux/aarch64/sysdep.h: use PTR_REG() for offset calculation in SYSCALL_ERROR_HANDLER(). [1] https://github.com/norov/glibc/tree/dev9 [2] https://github.com/norov/linux/tree/ilp32-20170203 [3] https://sourceware.org/ml/libc-alpha/2015-03/msg00587.html
2017-02-08Fix a typo in the manual.Rical Jasan
I only caught this because I saw a file in manual/ change. Oh, the irony... and thank you! * manual/contrib.texi: Fix typo.
2017-02-08Fix getting tunable values on big-endian (BZ #21109)Siddhesh Poyarekar
The code to set value passed a tunable_val_t, which when cast to int32_t on big-endian gives the wrong value. Instead, use tunable_val_t.numval instead, which can then be safely cast into int32_t.
2017-02-08Add Linux PTRACE_EVENT_STOPKir Kolyshkin
Add PTRACE_EVENT_STOP value to Linux's sys/ptrace.h, modify related comments accordingly. This constant initially appeared in Linux 3.1 (kernel commit 3544d72a, "ptrace: implement PTRACE_SEIZE") but its value has changed later in Linux 3.4 (kernel commit 5cdf389a, "ptrace: renumber PTRACE_EVENT_STOP so that future new options and events can match"). The comment is also taken from the above commit. This constant is used by e.g. strace, CRIU, Mozilla RR. * sysdeps/unix/sysv/linux/aarch64/sys/ptrace.h (__ptrace_eventcodes): Add PTRACE_EVENT_STOP. * sysdeps/unix/sysv/linux/ia64/sys/ptrace.h: Likewise. * sysdeps/unix/sysv/linux/powerpc/sys/ptrace.h: Likewise. * sysdeps/unix/sysv/linux/s390/sys/ptrace.h: Likewise. * sysdeps/unix/sysv/linux/sparc/sys/ptrace.h: Likewise. * sysdeps/unix/sysv/linux/sys/ptrace.h: Likewise. * sysdeps/unix/sysv/linux/tile/sys/ptrace.h: Likewise.
2017-02-07Clean up libm vector tests exception test disabling.Joseph Myers
The libm vector tests disable tests of exception raising via defining macros EXCEPTION_TESTS_float and EXCEPTION_TESTS_double to 0 in the headers for individual vector lengths. As EXCEPTION_TESTS is used in code in libm-test-driver.c that is otherwise ready to be built only once per type, this is not a good idea; it's better to define TEST_EXCEPTIONS appropriately so that flag_test_exceptions then gets initialized appropriately. Furthermore, it's better to do this just once, in test-math-vector.h, since there is no actual dependence on the vector length or type. This patch duly makes that change. Tested for x86_64. * math/test-math-finite.h (TEST_EXCEPTIONS): New macro. * math/test-math-no-finite.h (TEST_EXCEPTIONS): Likewise. * math/test-math-vector.h (TEST_EXCEPTIONS): Likewise. * math/test-math-no-inline.h (TEST_EXCEPTIONS): Remove macro. * math/test-double-vlen2.h (EXCEPTION_TESTS_double): Likewise. * math/test-double-vlen4.h (EXCEPTION_TESTS_double): Likewise. * math/test-double-vlen8.h (EXCEPTION_TESTS_double): Likewise. * math/test-float-vlen4.h (EXCEPTION_TESTS_float): Likewise. * math/test-float-vlen8.h (EXCEPTION_TESTS_float): Likewise. * math/test-float-vlen16.h (EXCEPTION_TESTS_float): Likewise.
2017-02-07Fix powf inaccuracy (bug 21112).Joseph Myers
Bug 21112 reports a case where powf is substantially inaccurate. This results from a multiplication where cp_h*p_h is required to be exact, and p_h is masked to have only 12 leading nonzero bits in its mantissa, but the value of cp_h has the 13th bit nonzero, leading to inexact multiplication results in some cases that can result in large errors in the final result of powf. This patch fixes this by using a value of cp_h correctly rounded to nearest to 12 bits, with a corresponding updated value of cp_l. Tested for x86_64 and x86. [BZ #21112] * sysdeps/ieee754/flt-32/e_powf.c (cp_h): Use value with trailing 12 bits zero. (cp_l): Update for new value of cp_h. * math/auto-libm-test-in: Add another test of pow. * math/auto-libm-test-out-pow: Regenerated.
2017-02-07Fix typo in manualSiddhesh Poyarekar
Apparently, implementating is not a word; who would have thunk it...
2017-02-07powerpc: Set minimum kernel version for powerpc64leRajalakshmi Srinivasaraghavan
This patch sets the minimum kernel version required for ppc64le as 3.10.0.
2017-02-07powerpc: Use latest optimizations for internal function callsRajalakshmi Srinivasaraghavan
Some of the power8 strings optimizations are not updated to use the latest version of other string optimizations
2017-02-07powerpc: Improve strcmp performance for shorter stringsRajalakshmi Srinivasaraghavan
For strings >16B and <32B existing algorithm takes more time than default implementation when strings are placed closed to end of page. This is due to byte by byte access for handling page cross. This is improved by following >32B code path where the address is adjusted to aligned memory before doing load doubleword operation instead of loading bytes. Tested on powerpc64 and powerpc64le.
2017-02-06Refactor some code in libm-test-driver.c.Joseph Myers
Splitting libm tests by function will mean about a thousand such tests built separately instead of the present nine (plus vector variants). When this is done, it's desirable to avoid needing to build all the test infrastructure so many times. Also, simply including libm-test-driver.c as-is into per-function tests doesn't actually work, because the various check_* functions are not used by all tests and so generate errors for unused static functions. Although some pieces of infrastructure depend on the type being tested while others don't, building once per type seems the simplest approach. This patch makes changes to libm-test-driver.c in preparation for that. Various cases where functions directly use macros such as TEST_ERRNO (that may vary depending on things other than the type under test) are changed to use variables initialized using those macros, while most of the code in main is moved out to functions libm_test_init and libm_test_fini. The idea is that all the functions in libm-test-driver.c will be moved out in a subsequent patch to be built once per type (and be no longer static when they are used from per-function tests), while libm-test-driver.c remains containing definitions of various variables (no longer static, of course, because they'll be used in the per-type code) and the main function. Declarations / macros relevant to both the once-per-type code and the per-function tests will go in a shared header. Tested for x86_64. * math/libm-test-driver.c (flag_test_errno): New variable. (flag_test_exceptions): Likewise. (flag_test_finite): Likewise. (flag_test_inline): Likewise. (flag_test_mathvec): Likewise. (test_msg): Likewise. (ulp_idx): Likewise. (qtype_str): Likewise. (ULP_IDX): Remove macro. (QTYPE_STR): Likewise. (find_ulps): Use ulp_idx not ULP_IDX. (print_function_ulps): Use qtype_str, printed with %s, not QTYPE_STR, printed with concatentation to format string. (print_complex_function_ulps): Likewise. (test_exceptions): Use flag_test_exceptions not TEST_EXCEPTIONS. (test_errno): Use flag_test_errno not TEST_ERRNO. (enable_test): Use flag_test_inline, flag_test_finite and flag_test_mathvec instead of TEST_INLINE, TEST_FINITE and TEST_MATHVEC. (libm_test_init): New function. Factored out of main. (libm_test_finish): Likewise. (main): Call libm_test_init and libm_test_finish and move most code to those functions.
2017-02-06Move libm-test TEST_MSG definitions to libm-test-driver.c.Joseph Myers
Various files using the libm-test infrastructure define a TEST_MSG macro with an informal description of the tests being run. This patch moves this macro to libm-test-driver.c (the definition depending on other macros already defined), so files specific to (type, choice of whether to test inline functions or finite-math-only functions, vector length) no longer need to define it. This is in preparation for replacing files such as test-float.c with per-function test-float-<func>.c etc. automatically generated in the build directory when tests are run. Tested for x86_64. * math/libm-test-driver.c (STRX): New macro. (STR): Likewise. (STR_FLOAT): Likewise. (STR_VEC_LEN): Likewise. (TEST_MSG): Likewise. Define here instead of expecting to be defined by including file. * math/test-double-finite.c (TEST_MSG): Remove macro. * math/test-double-vlen2.h (TEST_MSG): Likewise. * math/test-double-vlen4.h (TEST_MSG): Likewise. * math/test-double-vlen8.h (TEST_MSG): Likewise. * math/test-double.c (TEST_MSG): Likewise. * math/test-float-finite.c (TEST_MSG): Likewise. * math/test-float-vlen16.h (TEST_MSG): Likewise. * math/test-float-vlen4.h (TEST_MSG): Likewise. * math/test-float-vlen8.h (TEST_MSG): Likewise. * math/test-float.c (TEST_MSG): Likewise. * math/test-idouble.c (TEST_MSG): Likewise. * math/test-ifloat.c (TEST_MSG): Likewise. * math/test-ildouble.c (TEST_MSG): Likewise. * math/test-ldouble-finite.c (TEST_MSG): Likewise. * math/test-ldouble.c (TEST_MSG): Likewise.
2017-02-06Split libm-test.inc by function.Joseph Myers
Continuing the process of splitting up libm tests into more reasonably sized units, this patch splits libm-test.inc into 121 separate libm-test-<function>.inc files, one per array of test data. (There are 126 libm *_test functions, but five of those are for functions that are aliases for test purposes and so share arrays of test data.) In the present patch, the 121 files get processed separately by gen-libm-test.pl, each using only the auto-libm-test-out-<function> file that is relevant (/dev/null for functions not using auto-libm-test-* at all). This effectively eliminates the serialization on running gen-libm-test.pl. However, the resulting .c files still all get #included together, so compiling the limited number of libm tests using libm-test.inc may still act as a serialization point (the compilations still all have 40 MB of code to process). libm-test.inc doesn't actually have anything in it any more that needs gen-libm-test.pl processing, but is left as a .inc file that gets processed to produce a .c file, rather than being renamed, since the intent of this patch is as an intermediate step before libm-test.inc gets removed and tests get compiled separately for each function being tested. Tested for x86_64. * math/libm-test.inc: Move all tests of individual functions to libm-test-*.inc and #include libm-test-*.c files. (acos_test_data): Remove. (acos_test): Likewise. (acosh_test_data): Likewise. (acosh_test): Likewise. (asin_test_data): Likewise. (asin_test): Likewise. (asinh_test_data): Likewise. (asinh_test): Likewise. (atan_test_data): Likewise. (atan_test): Likewise. (atanh_test_data): Likewise. (atanh_test): Likewise. (atan2_test_data): Likewise. (atan2_test): Likewise. (cabs_test_data): Likewise. (cabs_test): Likewise. (cacos_test_data): Likewise. (cacos_test): Likewise. (cacosh_test_data): Likewise. (cacosh_test): Likewise. (canonicalize_test_data): Likewise. (canonicalize_test): Likewise. (carg_test_data): Likewise. (carg_test): Likewise. (casin_test_data): Likewise. (casin_test): Likewise. (casinh_test_data): Likewise. (casinh_test): Likewise. (catan_test_data): Likewise. (catan_test): Likewise. (catanh_test_data): Likewise. (catanh_test): Likewise. (cbrt_test_data): Likewise. (cbrt_test): Likewise. (ccos_test_data): Likewise. (ccos_test): Likewise. (ccosh_test_data): Likewise. (ccosh_test): Likewise. (ceil_test_data): Likewise. (ceil_test): Likewise. (cexp_test_data): Likewise. (cexp_test): Likewise. (cimag_test_data): Likewise. (cimag_test): Likewise. (clog_test_data): Likewise. (clog_test): Likewise. (clog10_test_data): Likewise. (clog10_test): Likewise. (conj_test_data): Likewise. (conj_test): Likewise. (copysign_test_data): Likewise. (copysign_test): Likewise. (cos_test_data): Likewise. (cos_test): Likewise. (cosh_test_data): Likewise. (cosh_test): Likewise. (cpow_test_data): Likewise. (cpow_test): Likewise. (cproj_test_data): Likewise. (cproj_test): Likewise. (creal_test_data): Likewise. (creal_test): Likewise. (csin_test_data): Likewise. (csin_test): Likewise. (csinh_test_data): Likewise. (csinh_test): Likewise. (csqrt_test_data): Likewise. (csqrt_test): Likewise. (ctan_test_data): Likewise. (ctan_test): Likewise. (ctanh_test_data): Likewise. (ctanh_test): Likewise. (erf_test_data): Likewise. (erf_test): Likewise. (erfc_test_data): Likewise. (erfc_test): Likewise. (exp_test_data): Likewise. (exp_test): Likewise. (exp10_test_data): Likewise. (exp10_test): Likewise. (pow10_test): Likewise. (exp2_test_data): Likewise. (exp2_test): Likewise. (expm1_test_data): Likewise. (expm1_test): Likewise. (fabs_test_data): Likewise. (fabs_test): Likewise. (fdim_test_data): Likewise. (fdim_test): Likewise. (floor_test_data): Likewise. (floor_test): Likewise. (fma_test_data): Likewise. (fma_test): Likewise. (fmax_test_data): Likewise. (fmax_test): Likewise. (fmaxmag_test_data): Likewise. (fmaxmag_test): Likewise. (fmin_test_data): Likewise. (fmin_test): Likewise. (fminmag_test_data): Likewise. (fminmag_test): Likewise. (fmod_test_data): Likewise. (fmod_test): Likewise. (fpclassify_test_data): Likewise. (fpclassify_test): Likewise. (frexp_test_data): Likewise. (frexp_test): Likewise. (fromfp_test_data): Likewise. (fromfp_test): Likewise. (fromfpx_test_data): Likewise. (fromfpx_test): Likewise. (getpayload_test_data): Likewise. (getpayload_test): Likewise. (hypot_test_data): Likewise. (hypot_test): Likewise. (ilogb_test_data): Likewise. (ilogb_test): Likewise. (iscanonical_test_data): Likewise. (iscanonical_test): Likewise. (iseqsig_test_data): Likewise. (iseqsig_test): Likewise. (isfinite_test_data): Likewise. (isfinite_test): Likewise. (finite_test): Likewise. (isgreater_test_data): Likewise. (isgreater_test): Likewise. (isgreaterequal_test_data): Likewise. (isgreaterequal_test): Likewise. (isinf_test_data): Likewise. (isinf_test): Likewise. (isless_test_data): Likewise. (isless_test): Likewise. (islessequal_test_data): Likewise. (islessequal_test): Likewise. (islessgreater_test_data): Likewise. (islessgreater_test): Likewise. (isnan_test_data): Likewise. (isnan_test): Likewise. (isnormal_test_data): Likewise. (isnormal_test): Likewise. (issignaling_test_data): Likewise. (issignaling_test): Likewise. (issubnormal_test_data): Likewise. (issubnormal_test): Likewise. (isunordered_test_data): Likewise. (isunordered_test): Likewise. (iszero_test_data): Likewise. (iszero_test): Likewise. (j0_test_data): Likewise. (j0_test): Likewise. (j1_test_data): Likewise. (j1_test): Likewise. (jn_test_data): Likewise. (jn_test): Likewise. (lgamma_test_data): Likewise. (lgamma_test): Likewise. (gamma_test): Likewise. (llogb_test_data): Likewise. (llogb_test): Likewise. (lrint_test_data): Likewise. (lrint_test): Likewise. (llrint_test_data): Likewise. (llrint_test): Likewise. (log_test_data): Likewise. (log_test): Likewise. (log10_test_data): Likewise. (log10_test): Likewise. (log1p_test_data): Likewise. (log1p_test): Likewise. (log2_test_data): Likewise. (log2_test): Likewise. (logb_test_data): Likewise. (logb_test): Likewise. (lround_test_data): Likewise. (lround_test): Likewise. (llround_test_data): Likewise. (llround_test): Likewise. (modf_test_data): Likewise. (modf_test): Likewise. (nearbyint_test_data): Likewise. (nearbyint_test): Likewise. (nextafter_test_data): Likewise. (nextafter_test): Likewise. (nextup_test_data): Likewise. (nextup_test): Likewise. (nextdown_test_data): Likewise. (nextdown_test): Likewise. (nexttoward_test_data): Likewise. (nexttoward_test): Likewise. (pow_test_data): Likewise. (pow_test): Likewise. (remainder_test_data): Likewise. (remainder_test): Likewise. (drem_test): Likewise. (remquo_test_data): Likewise. (remquo_test): Likewise. (rint_test_data): Likewise. (rint_test): Likewise. (round_test_data): Likewise. (round_test): Likewise. (roundeven_test_data): Likewise. (roundeven_test): Likewise. (scalb_test_data): Likewise. (scalb_test): Likewise. (scalbn_test_data): Likewise. (scalbn_test): Likewise. (ldexp_test): Likewise. (scalbln_test_data): Likewise. (scalbln_test): Likewise. (setpayload_test_data): Likewise. (setpayload_test): Likewise. (setpayloadsig_test_data): Likewise. (setpayloadsig_test): Likewise. (signbit_test_data): Likewise. (signbit_test): Likewise. (sin_test_data): Likewise. (sin_test): Likewise. (sincos_test_data): Likewise. (sincos_test): Likewise. (sinh_test_data): Likewise. (sinh_test): Likewise. (sqrt_test_data): Likewise. (sqrt_test): Likewise. (tan_test_data): Likewise. (tan_test): Likewise. (tanh_test_data): Likewise. (tanh_test): Likewise. (tgamma_test_data): Likewise. (tgamma_test): Likewise. (totalorder_test_data): Likewise. (totalorder_test): Likewise. (totalordermag_test_data): Likewise. (totalordermag_test): Likewise. (trunc_test_data): Likewise. (trunc_test): Likewise. (ufromfp_test_data): Likewise. (ufromfp_test): Likewise. (ufromfpx_test_data): Likewise. (ufromfpx_test): Likewise. (y0_test_data): Likewise. (y0_test): Likewise. (y1_test_data): Likewise. (y1_test): Likewise. (yn_test_data): Likewise. (yn_test): Likewise. (significand_test_data): Likewise. (significand_test): Likewise. * math/Makefile (auto-libm-test-out-files): Remove variable. (libm-test-funcs-noauto): New variable. (libm-test-funcs-all): Likewise. (libm-test-c-auto): Likewise. (libm-test-c-noauto): Likewise. (libm-tests-generated): Add $(libm-test-c-auto) and $(libm-test-c-noauto). (generated): Do not add auto-libm-test-out. (libm-test-c-auto-obj): New variable. (libm-test-c-noauto-obj): Likewise. ($(objpfx)libm-test.c): Do not generate or use auto-libm-test-out. ($(libm-test-c-noauto-obj)): New static pattern rule. ($(libm-test-c-auto-obj)): Likewise. (libm-test-incs): New variable. ($(objpfx)libm-have-vector-test.h): Depend on $(libm-test-incs) and pass it to gen-libm-have-vector-test.sh. * math/gen-libm-have-vector-test.sh: Expect list of .inc files to be passed on command line. * math/libm-test-acos.inc: New file. Content from math/libm-test.inc. * math/libm-test-acosh.inc: Likewise. * math/libm-test-asin.inc: Likewise. * math/libm-test-asinh.inc: Likewise. * math/libm-test-atan.inc: Likewise. * math/libm-test-atan2.inc: Likewise. * math/libm-test-atanh.inc: Likewise. * math/libm-test-cabs.inc: Likewise. * math/libm-test-cacos.inc: Likewise. * math/libm-test-cacosh.inc: Likewise. * math/libm-test-canonicalize.inc: Likewise. * math/libm-test-carg.inc: Likewise. * math/libm-test-casin.inc: Likewise. * math/libm-test-casinh.inc: Likewise. * math/libm-test-catan.inc: Likewise. * math/libm-test-catanh.inc: Likewise. * math/libm-test-cbrt.inc: Likewise. * math/libm-test-ccos.inc: Likewise. * math/libm-test-ccosh.inc: Likewise. * math/libm-test-ceil.inc: Likewise. * math/libm-test-cexp.inc: Likewise. * math/libm-test-cimag.inc: Likewise. * math/libm-test-clog.inc: Likewise. * math/libm-test-clog10.inc: Likewise. * math/libm-test-conj.inc: Likewise. * math/libm-test-copysign.inc: Likewise. * math/libm-test-cos.inc: Likewise. * math/libm-test-cosh.inc: Likewise. * math/libm-test-cpow.inc: Likewise. * math/libm-test-cproj.inc: Likewise. * math/libm-test-creal.inc: Likewise. * math/libm-test-csin.inc: Likewise. * math/libm-test-csinh.inc: Likewise. * math/libm-test-csqrt.inc: Likewise. * math/libm-test-ctan.inc: Likewise. * math/libm-test-ctanh.inc: Likewise. * math/libm-test-erf.inc: Likewise. * math/libm-test-erfc.inc: Likewise. * math/libm-test-exp.inc: Likewise. * math/libm-test-exp10.inc: Likewise. * math/libm-test-exp2.inc: Likewise. * math/libm-test-expm1.inc: Likewise. * math/libm-test-fabs.inc: Likewise. * math/libm-test-fdim.inc: Likewise. * math/libm-test-floor.inc: Likewise. * math/libm-test-fma.inc: Likewise. * math/libm-test-fmax.inc: Likewise. * math/libm-test-fmaxmag.inc: Likewise. * math/libm-test-fmin.inc: Likewise. * math/libm-test-fminmag.inc: Likewise. * math/libm-test-fmod.inc: Likewise. * math/libm-test-fpclassify.inc: Likewise. * math/libm-test-frexp.inc: Likewise. * math/libm-test-fromfp.inc: Likewise. * math/libm-test-fromfpx.inc: Likewise. * math/libm-test-getpayload.inc: Likewise. * math/libm-test-hypot.inc: Likewise. * math/libm-test-ilogb.inc: Likewise. * math/libm-test-iscanonical.inc: Likewise. * math/libm-test-iseqsig.inc: Likewise. * math/libm-test-isfinite.inc: Likewise. * math/libm-test-isgreater.inc: Likewise. * math/libm-test-isgreaterequal.inc: Likewise. * math/libm-test-isinf.inc: Likewise. * math/libm-test-isless.inc: Likewise. * math/libm-test-islessequal.inc: Likewise. * math/libm-test-islessgreater.inc: Likewise. * math/libm-test-isnan.inc: Likewise. * math/libm-test-isnormal.inc: Likewise. * math/libm-test-issignaling.inc: Likewise. * math/libm-test-issubnormal.inc: Likewise. * math/libm-test-isunordered.inc: Likewise. * math/libm-test-iszero.inc: Likewise. * math/libm-test-j0.inc: Likewise. * math/libm-test-j1.inc: Likewise. * math/libm-test-jn.inc: Likewise. * math/libm-test-lgamma.inc: Likewise. * math/libm-test-llogb.inc: Likewise. * math/libm-test-llrint.inc: Likewise. * math/libm-test-llround.inc: Likewise. * math/libm-test-log.inc: Likewise. * math/libm-test-log10.inc: Likewise. * math/libm-test-log1p.inc: Likewise. * math/libm-test-log2.inc: Likewise. * math/libm-test-logb.inc: Likewise. * math/libm-test-lrint.inc: Likewise. * math/libm-test-lround.inc: Likewise. * math/libm-test-modf.inc: Likewise. * math/libm-test-nearbyint.inc: Likewise. * math/libm-test-nextafter.inc: Likewise. * math/libm-test-nextdown.inc: Likewise. * math/libm-test-nexttoward.inc: Likewise. * math/libm-test-nextup.inc: Likewise. * math/libm-test-pow.inc: Likewise. * math/libm-test-remainder.inc: Likewise. * math/libm-test-remquo.inc: Likewise. * math/libm-test-rint.inc: Likewise. * math/libm-test-round.inc: Likewise. * math/libm-test-roundeven.inc: Likewise. * math/libm-test-scalb.inc: Likewise. * math/libm-test-scalbln.inc: Likewise. * math/libm-test-scalbn.inc: Likewise. * math/libm-test-setpayload.inc: Likewise. * math/libm-test-setpayloadsig.inc: Likewise. * math/libm-test-signbit.inc: Likewise. * math/libm-test-significand.inc: Likewise. * math/libm-test-sin.inc: Likewise. * math/libm-test-sincos.inc: Likewise. * math/libm-test-sinh.inc: Likewise. * math/libm-test-sqrt.inc: Likewise. * math/libm-test-tan.inc: Likewise. * math/libm-test-tanh.inc: Likewise. * math/libm-test-tgamma.inc: Likewise. * math/libm-test-totalorder.inc: Likewise. * math/libm-test-totalordermag.inc: Likewise. * math/libm-test-trunc.inc: Likewise. * math/libm-test-ufromfp.inc: Likewise. * math/libm-test-ufromfpx.inc: Likewise. * math/libm-test-y0.inc: Likewise. * math/libm-test-y1.inc: Likewise. * math/libm-test-yn.inc: Likewise. * math/README.libm-test: Update.
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-12 15:21:29 +0000