glibc/sysdeps
Joseph Myers e2c631384a Fix ldbl-128ibm fmodl handling of subnormal results (bug 19595).
The ldbl-128ibm implementation of fmodl has completely bogus logic for
subnormal results (in this context, that means results for which the
result is in the subnormal range for double, not results with absolute
value below LDBL_MIN), based on code used for ldbl-128 that is correct
in that case but incorrect in the ldbl-128ibm use.  This patch fixes
it to convert the mantissa into the correct form expected by
ldbl_insert_mantissa, removing the other cases of the code that were
incorrect and in one case unreachable for ldbl-128ibm.  A correct
exponent value is then passed to ldbl_insert_mantissa to reflect the
shifted result.

Tested for powerpc.

	[BZ #19595]
	* sysdeps/ieee754/ldbl-128ibm/e_fmodl.c (__ieee754_fmodl): Use
	common logic for all cases of shifting subnormal results.  Do not
	insert sign bit in shifted mantissa.  Always pass -1023 as biased
	exponent to ldbl_insert_mantissa in subnormal case.
2016-02-18 22:42:06 +00:00
..
aarch64 Add _STRING_INLINE_unaligned and string_private.h 2016-02-18 14:55:29 -02:00
alpha Update Alpha libm-test-ulps 2016-01-25 10:43:41 -08:00
arm Fix ulps regeneration for *-finite tests. 2016-01-19 21:42:58 +00:00
generic Add _STRING_INLINE_unaligned and string_private.h 2016-02-18 14:55:29 -02:00
gnu Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
hppa hppa: fix dladdr [BZ #19415] 2016-01-08 02:19:26 -05:00
i386 Make shebang interpreter directives consistent 2016-01-07 04:03:21 -05:00
ia64 Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
ieee754 Fix ldbl-128ibm fmodl handling of subnormal results (bug 19595). 2016-02-18 22:42:06 +00:00
init_array Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
m68k Add _STRING_INLINE_unaligned and string_private.h 2016-02-18 14:55:29 -02:00
mach Update copyright dates committed in 2016 2016-01-06 14:03:10 -08:00
microblaze Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
mips Fix MIPS64 memcpy regression. 2016-01-28 01:52:05 +00:00
nacl NaCl: Fix unused variable errors in lowlevellock-futex.h macros. 2016-01-20 13:57:14 -08:00
nios2 Maintainence patch for nios2: update ULPS file and localplt.data changes. 2016-01-21 22:58:03 -08:00
nptl New pthread_barrier algorithm to fulfill barrier destruction requirements. 2016-01-15 21:20:34 +01:00
posix Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
powerpc powerpc: Regenerate libm-test-ulps 2016-02-04 16:40:54 -02:00
pthread Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
s390 Add _STRING_INLINE_unaligned and string_private.h 2016-02-18 14:55:29 -02:00
sh Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
sparc Add _STRING_INLINE_unaligned and string_private.h 2016-02-18 14:55:29 -02:00
tile Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
unix Fix MIPS mmap negative offset handling for consistency (bug 19550). 2016-02-01 18:20:21 +00:00
wordsize-32 Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
wordsize-64 Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
x86 Add _STRING_INLINE_unaligned and string_private.h 2016-02-18 14:55:29 -02:00
x86_64 Use PIC relocation in ALIAS_IMPL 2016-02-17 14:23:32 -08:00