Joseph Myers f11e220d2d Refactor FP_FAST_* into bits/fp-fast.h. ... Continuing the refactoring of bits/mathdef.h, this patch moves the FP_FAST_* definitions into a new bits/fp-fast.h header. Currently this is only for FP_FAST_FMA*, but in future it would be the appropriate place for the FP_FAST_* macros from TS 18661-1 as well. The generic bits/mathdef.h header defines these macros based on whether the compiler defines __FP_FAST_*. Most architecture-specific headers, however, fail to do so, meaning that if the architecture (or some particular processors) does in fact have fused operations, and GCC knows to use them inline, the FP_FAST_* macros will still not be defined. By refactoring, this patch causes the generic version (based on __FP_FAST_*) to be used in more cases, and so the macro definitions to be more accurate. Architectures that already defined some or all of these macros other than based on the predefines have their own versions of fp-fast.h, which are arranged so they define FP_FAST_* if either the architecture-specific conditions are true or __FP_FAST_* are defined. After this refactoring, various bits/mathdef.h headers for architectures with long double = double are semantically identical to the generic version. The patch removes those headers that are redundant. (In fact two of the four removed were already redundant before this patch because they did use __FP_FAST_*.) Tested for x86_64 and x86, and compilation-only with build-many-glibcs.py. * bits/fp-fast.h: New file. * sysdeps/aarch64/bits/fp-fast.h: Likewise. * sysdeps/powerpc/bits/fp-fast.h: Likewise. * math/Makefile (headers): Add bits/fp-fast.h. * math/math.h: Include <bits/fp-fast.h>. * bits/mathdef.h (FP_FAST_FMA): Remove. (FP_FAST_FMAF): Likewise. (FP_FAST_FMAL): Likewise. * sysdeps/aarch64/bits/mathdef.h (FP_FAST_FMA): Likewise. (FP_FAST_FMAF): Likewise. * sysdeps/powerpc/bits/mathdef.h (FP_FAST_FMA): Likewise. (FP_FAST_FMAF): Likewise. * sysdeps/x86/bits/mathdef.h (FP_FAST_FMA): Likewise. (FP_FAST_FMAF): Likewise. (FP_FAST_FMAL): Likewise. * sysdeps/arm/bits/mathdef.h: Remove file. * sysdeps/hppa/fpu/bits/mathdef.h: Likewise. * sysdeps/sh/sh4/bits/mathdef.h: Likewise. * sysdeps/tile/bits/mathdef.h: Likewise.		2016-11-29 01:45:00 +00:00
..
bits	Refactor FP_FAST_* into bits/fp-fast.h.	2016-11-29 01:45:00 +00:00
nptl	Remove cached PID/TID in clone	2016-11-24 19:38:51 -02:00
tilegx	Define wordsize.h macros everywhere	2016-11-04 09:37:44 -07:00
tilepro	Make sure tilepro uses kernel atomics fo atomic_store	2016-11-10 20:08:24 -05:00
__longjmp.S
__tls_get_addr.S
_mcount.S
abort-instr.h
atomic-machine.h
backtrace.c
bsd-_setjmp.S
bsd-setjmp.S
bzero.S
configure
configure.ac
crti.S
crtn.S
dl-lookupcfg.h
dl-machine.h
dl-runtime.c
dl-start.S
dl-tls.c
dl-tls.h
dl-trampoline.S
ffs.c
ffsll.c
gccframe.h
Implies
jmpbuf-offsets.h
jmpbuf-unwind.h
ldsodefs.h
libm-test-ulps
libm-test-ulps-name	Do not hardcode platform names in manual/libm-err-tab.pl (bug 14139).	2016-11-04 16:49:06 +00:00
machine-gmon.h
Makefile
math_private.h
math-tests.h	tile: create new math-tests.h header	2016-11-18 13:34:47 -05:00
memcmp.c
memcopy.h
preconfigure
s_fma.c
s_fmaf.c
setjmp.S
sfp-machine.h
sotruss-lib.c
stackguard-macros.h
stackinfo.h
start.S
sysdep.h
tls-macros.h
tst-audit.h
Versions
wordcopy.c