AuroraMiddleware/glibc
1
0
Fork 0
mirror of https://sourceware.org/git/glibc.git synced 2024-11-14 01:00:07 +00:00
Code Issues Packages Projects Releases Wiki Activity
f5ee5362bf
glibc/sysdeps/mips
History
Joseph Myers f5ee5362bf Make MIPS soft-fp preserve NaN payloads for NAN2008. 
This corresponds to a patch applied to libgcc.  In glibc it doesn't
actually affect much (only fma, I think).

The MIPS sfp-machine.h files have an _FP_CHOOSENAN implementation
which emulates hardware semantics of not preserving signaling NaN
payloads for an operation with two NaN arguments (although that
doesn't suffice to avoid sNaN payload preservation in any case with
just one NaN argument).

However, those are only hardware semantics in the legacy NaN case; in
the NAN2008 case, the architecture documentation says hardware
preserves payloads in such cases.  Furthermore, this implementation
assumes legacy NaN semantics, so in the NAN2008 case the
implementation actually has the effect of preserving sNaN payloads but
not preserving qNaN payloads, when both should be preserved.

This patch fixes the code just to copy from the first argument.

Tested for mips64 soft-float.

	* sysdeps/mips/mips32/sfp-machine.h (_FP_CHOOSENAN): Always
	preserve NaN payload if [__mips_nan2008].
	* sysdeps/mips/mips64/sfp-machine.h (_FP_CHOOSENAN): Likewise.
2017-01-04 17:15:39 +00:00
..
bits Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
fpu Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
ieee754 Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
include/sys Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
mips32 Make MIPS soft-fp preserve NaN payloads for NAN2008. 2017-01-04 17:15:39 +00:00
mips64 Make MIPS soft-fp preserve NaN payloads for NAN2008. 2017-01-04 17:15:39 +00:00
nptl Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
sys Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
__longjmp.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
abort-instr.h Move mips from ports to libc. 2014-02-10 23:30:21 +00:00
add_n.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
addmul_1.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
atomic-machine.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
backtrace.c Move mips from ports to libc. 2014-02-10 23:30:21 +00:00
bsd-_setjmp.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
bsd-setjmp.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
configure Require autoconf 2.69 2014-09-29 07:53:36 -07:00
configure.ac Move mips from ports to libc. 2014-02-10 23:30:21 +00:00
dl-dtprocnum.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
dl-machine-reject-phdr.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
dl-machine.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
dl-procinfo.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
dl-procinfo.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
dl-tls.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
dl-trampoline.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
fpregdef.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
fpu_control.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
gccframe.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
Implies Move mips from ports to libc. 2014-02-10 23:30:21 +00:00
jmpbuf-unwind.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
ldsodefs.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
libc-tls.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
linkmap.h Rename bits/linkmap.h to linkmap.h (bug 14912). 2015-09-04 19:44:27 +00:00
localplt.data Add localplt.data for MIPS. 2016-11-04 16:40:54 +00:00
lshift.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
machine-gmon.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
Makefile Do not override objects in libc.a in other static libraries [BZ #20452] 2016-08-17 14:57:01 +02:00
math_private.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
math-tests.h Correct MIPS math-tests.h condition for sNaN payload preservation. 2017-01-02 20:28:36 +00:00
memcpy.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
memset.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
memusage.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
mul_1.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
nan-high-order-bit.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
preconfigure Put mips preconfigure code inside mips* case statement. 2014-09-09 10:58:00 -07:00
regdef.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
rshift.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
setjmp_aux.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
setjmp.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
sgidefs.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
sotruss-lib.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
stackinfo.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
start.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
strcmp.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
sub_n.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
submul_1.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tininess.h Move mips from ports to libc. 2014-02-10 23:30:21 +00:00
tls-macros.h MIPS: Only use .set mips* assembler directives when necessary 2015-09-08 16:52:43 +01:00
tst-abi-fp32mod.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tst-abi-fp64amod.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tst-abi-fp64mod.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tst-abi-fpxxmod.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tst-abi-fpxxomod.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tst-abi-interlink.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tst-audit.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tst-mode-switch-1.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tst-mode-switch-2.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tst-mode-switch-3.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00