qiurui
/
glibc
mirror of git://sourceware.org/git/glibc.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity
glibc/sysdeps/generic
History
Szabolcs Nagy 347a5b592c math: Fix float conversion regressions with gcc-12 [BZ #28713] 
Converting double precision constants to float is now affected by the
runtime dynamic rounding mode instead of being evaluated at compile
time with default rounding mode (except static object initializers).

This can change the computed result and cause performance regression.
The known correctness issues (increased ulp errors) are already fixed,
this patch fixes remaining cases of unnecessary runtime conversions.

Add float M_* macros to math.h as new GNU extension API.  To avoid
conversions the new M_* macros are used and instead of casting double
literals to float, use float literals (only required if the conversion
is inexact).

The patch was tested on aarch64 where the following symbols had new
spurious conversion instructions that got fixed:

  __clog10f
  __gammaf_r_finite@GLIBC_2.17
  __j0f_finite@GLIBC_2.17
  __j1f_finite@GLIBC_2.17
  __jnf_finite@GLIBC_2.17
  __kernel_casinhf
  __lgamma_negf
  __log1pf
  __y0f_finite@GLIBC_2.17
  __y1f_finite@GLIBC_2.17
  cacosf
  cacoshf
  casinhf
  catanf
  catanhf
  clogf
  gammaf_positive

Fixes bug 28713.

Reviewed-by: Paul Zimmermann <Paul.Zimmermann@inria.fr>
 		2022-01-10 14:27:17 +00:00
..
net Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
netinet Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
nfs Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
sys ttydefaults.h: Fix CSTATUS to control-t 2022-01-07 00:23:05 +01:00
Makefile Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
_G_config.h Post-cleanup 2: minimize _G_config.h. 2018-02-07 10:10:32 -05:00
_itoa.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
a.out.h
…
abort-instr.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
adaptive_spin_count.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
aio_misc.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
allocalim.h
…
arch-fd_to_filename.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
asm-syntax.h
…
atomic-machine.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
c++-types.data
…
confstr.h
…
crti.S Introduce <elf-initfini.h> and ELF_INITFINI for all architectures 2020-02-18 15:12:25 +01:00
crtn.S Introduce <elf-initfini.h> and ELF_INITFINI for all architectures 2020-02-18 15:12:25 +01:00
device-nrs.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
dirstream.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
dl-auxv.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
dl-cache.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
dl-debug.h elf: Add <dl-debug.h> 2022-01-03 05:16:03 -08:00
dl-dtprocnum.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
dl-dtv.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
dl-execve.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
dl-fcntl.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
dl-fileid.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
dl-fixup-attribute.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
dl-fptr.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
dl-hash.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
dl-hwcap-check.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
dl-irel.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
dl-isa-level.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
dl-librecon.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
dl-lookupcfg.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
dl-machine-rel.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
dl-machine.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
dl-minimal-malloc.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
dl-mman.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
dl-osinfo.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
dl-procinfo.c
…
dl-procinfo.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
dl-procruntime.c ld.so: Add architecture specific fields 2017-11-13 08:02:52 -08:00
dl-prop.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
dl-protected.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
dl-relocate-ld.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
dl-sysdep.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
dl-tls.h
…
dl-unistd.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
dl-vdso-setup.c elf: Move vDSO setup to rtld (BZ#24967) 2020-01-03 11:22:07 -03:00
dl-vdso-setup.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
dl-vdso.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
dwarf2.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
elf-initfini.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
elf-read-prop.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
elf_machine_sym_no_match.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
elide.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
eloop-threshold.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
entry.h
…
errqueue.h
…
fd_to_filename.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
features-time64.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
fenv_private.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
fips-private.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
fix-fp-int-compare-invalid.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
fix-fp-int-convert-overflow.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
fix-int-fp-convert-zero.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
float128-abi.h Move some float128 symbol version definitions. 2017-10-16 22:04:42 +00:00
fork.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
fpu_control.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
framestate.c Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
gcc-compat.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
gccframe.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
get-rounding-mode.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
gmp-mparam.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
hp-timing-common.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
hp-timing.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
ifreq.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
ifunc-init.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
ifunc-sel.h
…
internal-signals.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
intr-msg.h
…
ld.abilist
…
ldbl-classify-compat.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
ldconfig.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
ldsodefs.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
libBrokenLocale.abilist
…
libanl.abilist
…
libc-lock.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
libc-mmap.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
libc-mtag.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
libc-start.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
libc-symver.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
libc-tsd.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
libc.abilist Make sysdeps/generic/libc.abilist empty 2021-05-13 21:28:17 +00:00
libc_malloc_debug.abilist Move malloc hooks into a compat DSO 2021-07-22 18:37:59 +05:30
libc_start_call_main.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
libcrypt.abilist
…
libdl.abilist
…
libm-alias-double.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
libm-alias-float.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
libm-alias-float128.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
libm-alias-ldouble.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
libm-test-ulps Replace gen-libm-test.pl with gen-libm-test.py. 2018-08-09 15:34:12 +00:00
libm-test-ulps-name
…
libm.abilist
…
libnsl.abilist
…
libnss_compat.abilist
…
libnss_db.abilist
…
libnss_dns.abilist
…
libnss_files.abilist
…
libnss_hesiod.abilist
…
libnss_nis.abilist
…
libnss_nisplus.abilist
…
libpthread.abilist
…
libresolv.abilist
…
librt.abilist
…
libutil.abilist
…
link_map.h Initial support for GNU_PROPERTY_1_NEEDED 2021-10-07 10:26:08 -07:00
linkmap.h
…
local-setxid.h
…
localplt.data mtrace: Wean away from malloc hooks 2021-07-22 18:38:06 +05:30
machine-gmon.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
machine-lock.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
machine-sp.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
malloc-alignment.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
malloc-hugepages.c Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
malloc-hugepages.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
malloc-machine.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
malloc-size.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
malloc-sysdep.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
math-barriers.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
math-nan-payload-double.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
math-nan-payload-float.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
math-narrow-alias-float128.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
math-narrow-alias.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
math-tests-arch.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
math-tests-exceptions.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
math-tests-rounding.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
math-tests-snan-cast.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
math-tests-snan-payload.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
math-tests-snan.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
math-tests-trap-force.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
math-tests-trap.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
math-tests.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
math-type-macros-double.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
math-type-macros-float.h math: Fix float conversion regressions with gcc-12 [BZ #28713] 2022-01-10 14:27:17 +00:00
math-type-macros-float128.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
math-type-macros-ldouble.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
math-type-macros.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
math-use-builtins-ceil.h math: Decompose math-use-builtins.h 2020-06-22 11:09:45 -03:00
math-use-builtins-copysign.h math: Decompose math-use-builtins.h 2020-06-22 11:09:45 -03:00
math-use-builtins-floor.h math: Decompose math-use-builtins.h 2020-06-22 11:09:45 -03:00
math-use-builtins-fma.h math: Decompose math-use-builtins.h 2020-06-22 11:09:45 -03:00
math-use-builtins-fmax.h math: Add math-use-builtinds-fmax.h 2021-12-13 09:08:07 -03:00
math-use-builtins-fmin.h math: Add math-use-builtinds-fmin.h 2021-12-13 10:08:43 -03:00
math-use-builtins-nearbyint.h math: Decompose math-use-builtins.h 2020-06-22 11:09:45 -03:00
math-use-builtins-rint.h math: Decompose math-use-builtins.h 2020-06-22 11:09:45 -03:00
math-use-builtins-round.h math: Decompose math-use-builtins.h 2020-06-22 11:09:45 -03:00
math-use-builtins-roundeven.h Use GCC builtins for roundeven functions if desired. 2021-06-27 07:56:57 -07:00
math-use-builtins-sqrt.h math: Decompose math-use-builtins.h 2020-06-22 11:09:45 -03:00
math-use-builtins-trunc.h math: Decompose math-use-builtins.h 2020-06-22 11:09:45 -03:00
math-use-builtins.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
math_ldbl.h
…
math_ldbl_opt.h Use PRINTF_LDBL_IS_DBL instead of __ldbl_is_dbl. 2018-12-05 18:15:43 -02:00
math_private.h math: Remove mpa files [BZ #15267] 2021-03-11 14:26:36 +00:00
math_private_calls.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
memcopy.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
mmap_info.h posix: Fix large mmap64 offset for mips64n32 (BZ#24699) 2019-07-10 16:52:50 -03:00
nan-high-order-bit.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
not-cancel.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
not-errno.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
nscd-types.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
pagecopy.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
paths.h
…
profil-counter.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
pty-private.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
rtld-lowlevel.h
…
rtld_static_init.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
safe-fatal.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
set-hooks-arch.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
setjmpP.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
sigcontextinfo.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
siglist-compat.c signal: Move sys_siglist to a compat symbol 2020-07-07 14:10:58 -03:00
siglist-compat.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
siglist.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
sigset-cvt-mask.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
sigsetops.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
single-thread.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
spawn_int_def.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
stackguard-macros.h
…
stackinfo.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
stap-probe-machine.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
startup.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
stdio-lock.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
string_private.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
struct_stat_time64.h linux: Add {f}stat{at} y2038 support 2020-10-09 17:02:07 -03:00
symbol-hacks.h Disable symbol hack in libc_nonshared.a 2021-09-27 07:46:25 -07:00
sysdep-cancel.h nptl: Remove tst-cancel-wrappers test and related macros 2019-01-03 18:38:08 -02:00
sysdep.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
thread_state.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
time-clockid.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
time64-compat.h y2038: Add support for 64-bit time on legacy ABIs 2021-06-15 10:42:11 -03:00
tininess.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
tls-internal-struct.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
tls-internal.c Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
tls-internal.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
tls-setup.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
tls.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
tst-audit.h
…
tst-file-align.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
tst-stack-align.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
unsecvars.h
…
unwind-arch.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
unwind-dw2-fde-glibc.c Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
unwind-dw2-fde.c Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
unwind-dw2-fde.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
unwind-dw2.c Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
unwind-link.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
unwind-pe.c
…
unwind-pe.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
unwind-resume.c Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
unwind-resume.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
unwind.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
utmp-equal.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
xstatver.h Remove mknod wrapper functions, move them to symbols 2020-10-09 17:02:06 -03:00