Paul A. Clarke 3db85a9814 powerpc: Use faster means to access FPSCR when possible in some cases ... Using 'mffs' instruction to read the Floating Point Status Control Register (FPSCR) can force a processor flush in some cases, with undesirable performance impact. If the values of the bits in the FPSCR which force the flush are not needed, an instruction that is new to POWER9 (ISA version 3.0), 'mffsl' can be used instead. Cases included: get_rounding_mode, fegetround, fegetmode, fegetexcept. * sysdeps/powerpc/bits/fenvinline.h (__fegetround): Use __fegetround_ISA300() or __fegetround_ISA2() as appropriate. (__fegetround_ISA300) New. (__fegetround_ISA2) New. * sysdeps/powerpc/fpu_control.h (IS_ISA300): New. (_FPU_MFFS): Move implementation... (_FPU_GETCW): Here. (_FPU_MFFSL): Move implementation.... (_FPU_GET_RC_ISA300): Here. New. (_FPU_GET_RC): Use _FPU_GET_RC_ISA300() or _FPU_GETCW() as appropriate. * sysdeps/powerpc/fpu/fenv_libc.h (fegetenv_status_ISA300): New. (fegetenv_status): New. * sysdeps/powerpc/fpu/fegetmode.c (fegetmode): Use fegetenv_status() instead of fegetenv_register(). * sysdeps/powerpc/fpu/fegetexcept.c (__fegetexcept): Likewise. Reviewed-by: Tulio Magno Quites Machado Filho <tuliom@linux.ibm.com>		2019-06-30 08:40:44 -03:00
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bits	powerpc: Use faster means to access FPSCR when possible in some cases	2019-06-30 08:40:44 -03:00
fpu	powerpc: Use faster means to access FPSCR when possible in some cases	2019-06-30 08:40:44 -03:00
nofpu
nptl
power4	powerpc: Remove power4 mpa optimization	2019-04-29 08:43:03 -03:00
power5+/fpu
power6	powerpc: Use generic wcsrchr optimization	2019-04-04 16:01:14 +07:00
power7/fpu
powerpc32	powerpc: Refactor powerpc32 lround/lroundf/llround/llroundf	2019-06-26 14:32:45 -03:00
powerpc64	powerpc: Use generic e_expf	2019-06-26 14:33:58 -03:00
sys/platform
abort-instr.h
atomic-machine.h
cpu-features.c
cpu-features.h
dl-procinfo.c
dl-procinfo.h
dl-tls.c
dl-tls.h
dl-tunables.list
ffs.c
fpu_control.h	powerpc: Use faster means to access FPSCR when possible in some cases	2019-06-30 08:40:44 -03:00
gccframe.h
hwcapinfo.c
hwcapinfo.h
ifunc-sel.h
jmpbuf-offsets.h
jmpbuf-unwind.h
ldsodefs.h
libc-tls.c
locale-defines.sym
longjmp.c
machine-gmon.h
Makefile	powerpc: Fix build failures with current GCC	2019-05-30 11:10:48 -03:00
math-tests-snan-cast.h
memusage.h
mod-tlsopt-powerpc.c
mp_clz_tab.c
novmx-longjmp.c
novmx-sigjmp.c
novmxsetjmp.h
preconfigure	Remove support for PowerPC SPE extension (powerpc*-*-*gnuspe*).	2019-05-22 10:05:40 -04:00
rtld-global-offsets.sym
sched_cpucount.c
sigjmp.c
sotruss-lib.c
stackinfo.h
sysdep.h
test-arith.c
test-arithf.c
test-get_hwcap-static.c
test-get_hwcap.c
test-gettimebase.c
tls-macros.h
tst-set_ppr.c
tst-stack-align.h
tst-tlsifunc-static.c
tst-tlsifunc.c
tst-tlsopt-powerpc.c
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