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632a6cbe44
glibc/sysdeps/unix/sysv/linux/alpha
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Joseph Myers 632a6cbe44 Add narrowing divide functions. 
This patch adds the narrowing divide functions from TS 18661-1 to
glibc's libm: fdiv, fdivl, ddivl, f32divf64, f32divf32x, f32xdivf64
for all configurations; f32divf64x, f32divf128, f64divf64x,
f64divf128, f32xdivf64x, f32xdivf128, f64xdivf128 for configurations
with _Float64x and _Float128; __nldbl_ddivl for ldbl-opt.

The changes are mostly essentially the same as for the other narrowing
functions, so the description of those generally applies to this patch
as well.

Tested for x86_64, x86, mips64 (all three ABIs, both hard and soft
float) and powerpc, and with build-many-glibcs.py.

	* math/Makefile (libm-narrow-fns): Add div.
	(libm-test-funcs-narrow): Likewise.
	* math/Versions (GLIBC_2.28): Add narrowing divide functions.
	* math/bits/mathcalls-narrow.h (div): Use __MATHCALL_NARROW.
	* math/gen-auto-libm-tests.c (test_functions): Add div.
	* math/math-narrow.h (CHECK_NARROW_DIV): New macro.
	(NARROW_DIV_ROUND_TO_ODD): Likewise.
	(NARROW_DIV_TRIVIAL): Likewise.
	* sysdeps/ieee754/float128/float128_private.h (__fdivl): New
	macro.
	(__ddivl): Likewise.
	* sysdeps/ieee754/ldbl-opt/Makefile (libnldbl-calls): Add fdiv and
	ddiv.
	(CFLAGS-nldbl-ddiv.c): New variable.
	(CFLAGS-nldbl-fdiv.c): Likewise.
	* sysdeps/ieee754/ldbl-opt/Versions (GLIBC_2.28): Add
	__nldbl_ddivl.
	* sysdeps/ieee754/ldbl-opt/nldbl-compat.h (__nldbl_ddivl): New
	prototype.
	* manual/arith.texi (Misc FP Arithmetic): Document fdiv, fdivl,
	ddivl, fMdivfN, fMdivfNx, fMxdivfN and fMxdivfNx.
	* math/auto-libm-test-in: Add tests of div.
	* math/auto-libm-test-out-narrow-div: New generated file.
	* math/libm-test-narrow-div.inc: New file.
	* sysdeps/i386/fpu/s_f32xdivf64.c: Likewise.
	* sysdeps/ieee754/dbl-64/s_f32xdivf64.c: Likewise.
	* sysdeps/ieee754/dbl-64/s_fdiv.c: Likewise.
	* sysdeps/ieee754/float128/s_f32divf128.c: Likewise.
	* sysdeps/ieee754/float128/s_f64divf128.c: Likewise.
	* sysdeps/ieee754/float128/s_f64xdivf128.c: Likewise.
	* sysdeps/ieee754/ldbl-128/s_ddivl.c: Likewise.
	* sysdeps/ieee754/ldbl-128/s_f64xdivf128.c: Likewise.
	* sysdeps/ieee754/ldbl-128/s_fdivl.c: Likewise.
	* sysdeps/ieee754/ldbl-128ibm/s_ddivl.c: Likewise.
	* sysdeps/ieee754/ldbl-128ibm/s_fdivl.c: Likewise.
	* sysdeps/ieee754/ldbl-96/s_ddivl.c: Likewise.
	* sysdeps/ieee754/ldbl-96/s_fdivl.c: Likewise.
	* sysdeps/ieee754/ldbl-opt/nldbl-ddiv.c: Likewise.
	* sysdeps/ieee754/ldbl-opt/nldbl-fdiv.c: Likewise.
	* sysdeps/ieee754/soft-fp/s_ddivl.c: Likewise.
	* sysdeps/ieee754/soft-fp/s_fdiv.c: Likewise.
	* sysdeps/ieee754/soft-fp/s_fdivl.c: Likewise.
	* sysdeps/powerpc/fpu/libm-test-ulps: Update.
	* sysdeps/mach/hurd/i386/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/aarch64/libm.abilist: Likewise.
	* 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/riscv/rv64/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/x86_64/64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Likewise.
2018-05-17 00:40:52 +00:00
..
alpha
alphaev6/fpu
alphaev67/fpu
bits Define XTABS to TAB3 on alpha to match Linux 4.16. 2018-04-20 19:52:02 +00:00
fpu
sys Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
____longjmp_chk.S Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
a.out.h
adjtime.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
aio_cancel.c
brk.S Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
c++-types.data
clone.S alpha/clone.S: Invoke .set noat/.set at around explicit uses of $at 2018-03-10 15:17:18 -05:00
configure
configure.ac
dl-auxv.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
dl-brk.S
dl-fxstatat64.c
dl-support.c
dl-sysdep.c
fraiseexcpt.S Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
fstatfs64.c
fstatvfs64.c
fstatvfs.c
fxstat.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
fxstatat.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
getclktck.c
getcontext.S Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
getdents64.c Consolidate Linux getdents{64} implementation 2018-04-19 08:49:52 -03:00
getdents.c Consolidate Linux getdents{64} implementation 2018-04-19 08:49:52 -03:00
gethostname.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
getrlimit64.c Alpha: Fix the RLIM_INFINITY and RLIM64_INFINITY constants 2018-01-05 20:34:10 +01:00
getsysstats.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
glob-lstat-compat.c posix: Add compat glob symbol to not follow dangling symbols 2017-09-25 18:04:16 -07:00
globfree.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
ieee_get_fp_control.S Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
ieee_set_fp_control.S Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
Implies
internal_statvfs64.c
ioperm.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
ipc_priv.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
jmp_buf-macros.h Add jmp_buf-macros.h 2017-11-09 05:10:03 -08:00
kernel_sigaction.h linux: Consolidate sigaction implementation 2018-04-05 17:09:50 -03:00
kernel_stat.h
kernel_sysinfo.h
kernel_termios.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
kernel-features.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
ld.abilist Ignore absolute symbols in ABI tests. 2018-05-04 15:46:32 +00:00
libanl.abilist Ignore absolute symbols in ABI tests. 2018-05-04 15:46:32 +00:00
libBrokenLocale.abilist Ignore absolute symbols in ABI tests. 2018-05-04 15:46:32 +00:00
libc.abilist Ignore absolute symbols in ABI tests. 2018-05-04 15:46:32 +00:00
libcrypt.abilist Ignore absolute symbols in ABI tests. 2018-05-04 15:46:32 +00:00
libdl.abilist Ignore absolute symbols in ABI tests. 2018-05-04 15:46:32 +00:00
libm.abilist Add narrowing divide functions. 2018-05-17 00:40:52 +00:00
libnsl.abilist Ignore absolute symbols in ABI tests. 2018-05-04 15:46:32 +00:00
libpthread.abilist Ignore absolute symbols in ABI tests. 2018-05-04 15:46:32 +00:00
libresolv.abilist Ignore absolute symbols in ABI tests. 2018-05-04 15:46:32 +00:00
librt.abilist Ignore absolute symbols in ABI tests. 2018-05-04 15:46:32 +00:00
libthread_db.abilist Ignore absolute symbols in ABI tests. 2018-05-04 15:46:32 +00:00
libutil.abilist Ignore absolute symbols in ABI tests. 2018-05-04 15:46:32 +00:00
localplt.data ld.so: Introduce struct dl_exception 2017-08-10 16:54:57 +02:00
lxstat.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
makecontext.S Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
Makefile posix: Fix compat glob code on s390 and alpha 2017-09-13 09:24:12 -03:00
nldbl-abi.h
oldglob.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
pipe.S
pt-vfork.S Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
register-dump.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
rt_sigaction.S Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
select.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
setcontext.S Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
setfpucw.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
setrlimit64.c Alpha: Fix the RLIM_INFINITY and RLIM64_INFINITY constants 2018-01-05 20:34:10 +01:00
shlib-versions
sigaction.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
sigcontextinfo.h Remove unused frame.h header, sigcontextinfo.h macros. 2018-03-22 16:40:51 +00:00
sigprocmask.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
sizes.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
statfs64.c
statvfs64.c
statvfs.c
swapcontext.S Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
syscall.S Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
syscalls.list
sysconf.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
sysdep.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
timer_create.c
timer_delete.c
timer_getoverr.c
timer_gettime.c
timer_settime.c
ucontext-offsets.sym Fix mcontext_t sigcontext namespace (bug 21457). 2017-08-30 22:02:04 +00:00
Versions Alpha: Fix the RLIM_INFINITY and RLIM64_INFINITY constants 2018-01-05 20:34:10 +01:00
vfork.S Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
wordexp.c
xstat.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
xstatconv.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
xstatconv.h Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00