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51df260506
glibc/sysdeps
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Joseph Myers 51df260506 Fix x86_64 fma4 pow inappropriate contraction (bug 19003). 
The x86_64 fma4 version of pow fails to disable contraction of
operations other than those explicitly intended to use fma
instructions, so resulting in large ulps errors on processors with
fma4 instructions, as in bug 18104 (165ulp for the test added for that
bug; error originally reported by "blaaa" on #glibc).  This patch adds
$(config-cflags-nofma) for e_pow-fma4.c, corresponding to the use for
e_pow.c in sysdeps/ieee754/dbl-64/Makefile.

Tested for x86_64 on a processor with fma4.

	[BZ #19003]
	* sysdeps/x86_64/fpu/multiarch/Makefile (CFLAGS-e_pow-fma4.c): Add
	$(config-cflags-nofma).
2015-09-24 16:48:32 +00:00
..
aarch64 Regenerate aarch64 libm-test-ulps 2015-09-24 14:22:31 +01:00
alpha Move bits/atomic.h to atomic-machine.h (bug 14912). 2015-09-11 20:00:19 +00:00
arm arm: setjmp/longjmp: fix PIC vs SHARED thinkos 2015-09-18 13:09:57 -04:00
generic Refactor code forcing underflow exceptions. 2015-09-23 22:42:30 +00:00
gnu Add more TCP_* values to netinet/tcp.h. 2015-09-01 13:45:49 +00:00
hppa Rename bits/linkmap.h to linkmap.h (bug 14912). 2015-09-04 19:44:27 +00:00
i386 Use math_narrow_eval more consistently. 2015-09-23 18:14:57 +00:00
ia64 Move bits/atomic.h to atomic-machine.h (bug 14912). 2015-09-11 20:00:19 +00:00
ieee754 Don't use volatile in exp2f. 2015-09-23 22:52:13 +00:00
init_array NPTL: Initializer for .init_array-only configurations. 2015-02-13 13:19:11 -08:00
m68k Make scalbn set errno (bug 6803). 2015-09-16 21:11:00 +00:00
mach Fix vm_page_size visibility 2015-09-21 00:08:51 +02:00
microblaze Move bits/atomic.h to atomic-machine.h (bug 14912). 2015-09-11 20:00:19 +00:00
mips Add more random libm test inputs (mainly for ldbl-128). 2015-09-12 00:01:38 +00:00
nacl NaCl: Do not install <sys/mtio.h>. 2015-09-11 14:16:18 -07:00
nios2 Fixes extern protected data handling testcases elf/tst-protected1a 2015-07-26 05:27:18 -07:00
nptl Use __libc_ptf_call in _longjmp_unwind 2015-09-18 12:22:47 -07:00
posix To fix BZ #18675, use __fstatvfs64 in __fpathconf. 2015-09-09 18:41:25 -07:00
powerpc Move bits/atomic.h to atomic-machine.h (bug 14912). 2015-09-11 20:00:19 +00:00
pthread Move bits/libc-lock.h and bits/libc-lockP.h out of bits/ (bug 14912). 2015-09-08 21:11:03 +00:00
s390 Move bits/atomic.h to atomic-machine.h (bug 14912). 2015-09-11 20:00:19 +00:00
sh Rename bits/linkmap.h to linkmap.h (bug 14912). 2015-09-04 19:44:27 +00:00
sparc Make scalbn set errno (bug 6803). 2015-09-16 21:11:00 +00:00
tile Move bits/atomic.h to atomic-machine.h (bug 14912). 2015-09-11 20:00:19 +00:00
unix Use __libc_ptf_call in _longjmp_unwind 2015-09-18 12:22:47 -07:00
wordsize-32 Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
wordsize-64 Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
x86 Rename bits/linkmap.h to linkmap.h (bug 14912). 2015-09-04 19:44:27 +00:00
x86_64 Fix x86_64 fma4 pow inappropriate contraction (bug 19003). 2015-09-24 16:48:32 +00:00