Commit Graph

30522 Commits

Author SHA1 Message Date
Siddhesh Poyarekar
25e440c6c7 Use do_sin for sin(x) where 0.25 < |x| < 0.855469
The only code looks slightly different from do_sin but on closer
examination, should give exactly the same result.  Drop it in favour
of the do_sin function call.

	* sysdeps/ieee754/dbl-64/s_sin.c (__sin): Use do_sin.
2016-09-02 20:08:41 +05:30
Siddhesh Poyarekar
758e79ec89 Consolidate input partitioning into do_cos and do_sin
All calls to do_cos are preceded by code that partitions x into a
larger double that gives an offset into the sincos table and a smaller
double that is used in a polynomial computation.  Consolidate all of
them into do_cos and do_sin to reduce code duplication.

	* sysdeps/ieee754/dbl-64/s_sin.c (do_cos): Accept X and DX as input
	arguments.  Consolidate input partitioning from callers here.
	(do_cos_slow): Likewise.
	(do_sin): Likewise.
	(do_sin_slow): Likewise.
	(do_sincos_1): Remove the no longer necessary input partitioning.
	(do_sincos_2): Likewise.
	(__sin): Likewise.
	(__cos): Likewise.
	(slow1): Likewise.
	(slow2): Likewise.
	(sloww1): Likewise.
	(sloww2): Likewise.
	(bsloww1): Likewise.
	(bsloww2): Likewise.
	(cslow2): Likewise.
2016-09-02 20:08:41 +05:30
Florian Weimer
9dd87afbf1 vfscanf: Avoid multiple reads of multi-byte character width
This avoids a race condition if the process-global locale is changed
while vfscanf is running.  MB_LEN_MAX is always larger than MB_CUR_MAX,
so we might realloc earlier than necessary (but even MB_CUR_MAX could
be larger than the minimum required space).

The existing length was a bit questionable because str + MB_LEN_MAX
might point past the end of the buffer.
2016-09-02 15:59:34 +02:00
Florian Weimer
326e288b1e vfprintf: Avoid creating a VLA which complicates stack management 2016-09-02 15:36:52 +02:00
Paul E. Murphy
2bad840e9d Remove unneeded stubs for k_rem_pio2l.
This is only used for the float and double variants.

Instead, just add it to the type specific list of files,
and remove all stubs, and remove the declaration from
math_private.h.

I verified x86_64, i486, ia64, m68k, and ppc64 build.
2016-09-01 09:31:06 -05:00
Paul E. Murphy
f306ea1ada Make common fmin implementation generic. 2016-09-01 09:31:05 -05:00
Paul E. Murphy
847c9161c7 Make common fmax implementation generic.
Also update aarch64 to ensure the correct s_fmin.c is included.
The include order favors including the generated copy.
2016-09-01 09:31:05 -05:00
Paul E. Murphy
ee8a49071c Make common nextdown implementation generic.
With the exception of those machines using the ldbl-opt in
an Implies file, this is a trivial transformation.

nextdownl is not subject to the non-trivial versioning rules
of the other generated functions, so to keep things simple,
it is handled as a one-off case in ldbl-opt to preserve the
existing behavior.
2016-09-01 09:31:03 -05:00
Paul E. Murphy
7b7c39450b Make common fdim implementation generic.
The only difference is the usage of math_narrow_eval when
building s_fdiml.c.  This should be harmless for long double,
but I did observe some code generation changes on m68k, but
lack the resources to test it.

Likewise, to more easily support overriding symbol generation,
the aliasing macros are always conditionally defined on their
absence to reduce boilerplate.

I also ran builds for i486, ppc64, sparcv9, aarch64,
s390x and observed no changes to s_fdim* objects.
2016-09-01 09:28:05 -05:00
Florian Weimer
4d728087ef Base <sys/quota.h> on Linux kernel headers [BZ #20525]
Macros which are also defined in <linux/quota.h> are removed, and
<linux/quota.h> is included instead.

This commit cleans up the definition of fs_to_dq_blocks and struct
dqblock and struct dqinfo, too.
2016-09-01 15:53:13 +02:00
Paul E. Murphy
de6b6d14e9 ldbl-128: Cleanup e_gammal_r.c after _Float128 rename 2016-08-31 17:17:03 -05:00
Paul E. Murphy
15089e046b ldbl-128: Rename 'long double' to '_Float128'
Add a layer of macro indirection for long double files
which need to be built using another typename.  Likewise,
add the L(num) macro used in a later patch to override
real constants.

These macros are only defined through the ldbl-128
math_ldbl.h header, thereby implicitly restricting
these macros to machines which back long double
with an IEEE binary128 format.

Likewise, appropriate changes are made for the few
files which indirectly include such ldbl-128 files.

These changes produce identical binaries for s390x,
aarch64, and ppc64.
2016-08-31 10:38:11 -05:00
Stefan Liebler
e9b424881a S390: Do not set FE_INEXACT with feraiseexcept (FE_OWERFLOW|FE_UNDERFLOW).
On s390 feraiseexcept (FE_OVERFLOW|FE_UNDERFLOW) sets FE_INEXACT, too.
This patch uses z196 zarch load rounded instruction which can suppress
FE_INEXACT exception if gcc has z196 support in used configuration.
Otherwise FE_INEXACT flag is set as before. The gcc support is tested
in a new configure-check.

A comment in fsetexcptflg.c is corrected as new exceptions are not
executed with the next floating-point instruction if fpc is set with
_FPU_SETCW macro. It seems the comment was copied e.g. from
sysdeps/x86_64/fpu/fsetexcptflg.c file.

ChangeLog:

	* config.h.in (HAVE_S390_MIN_Z196_ZARCH_ASM_SUPPORT):
	New undefine.
	* sysdeps/s390/configure.ac: Add test for z196 zarch support.
	* sysdeps/s390/configure: Regenerated.
	* sysdeps/s390/fpu/fraiseexcpt.c (__feraiseexcept): Use ledbra
	instruction for raising over-/underflow if z196 zarch is supported
	by default.
	* sysdeps/s390/fpu/fsetexcptflg.c (fesetexceptflag):
	Correct comment.
2016-08-31 14:54:55 +02:00
Svante Signell
aaf3045480 hurd: Fix adjtime call with OLDDELTA == NULL
* sysdeps/mach/hurd/adjtime.c (__adjtime): When OLDDELTA is NULL, make
it point to a dumb buffer for RPC to fill it.
2016-08-30 23:07:30 +02:00
Siddhesh Poyarekar
9d84d0e51d Use fabs(x) instead of branching on signedness of input to sin and cos
The sin and cos code is inconsistent about its use of fabs to get the
absolute value of X where in some places it conditionalizes the code
while in others it uses fabs.  fabs seems to be a better candidate in
most cases because it avoids a branch.  Similarly there is an attempt
to make it easier for the compiler to emit conditional assignment
instructions (like fcsel on aarch64) where it can, by isolating
conditional assignment constructs from the rest of the expression.

A further benefit of this change is to identify common constructs
across functions and consolidate them in future patches.

	* sysdeps/ieee754/dbl-64/s_sin.c (do_cos_slow): Use ternary
	instead of if/else.
	(do_sin_slow): Likewise.
	(do_sincos_1): Use fabs instead of if/else.
	(do_sincos_2): Likewise.
	(__sin): Likewise.
	(__cos): Likewise.
	(slow2): Likewise.
	(sloww): Likewise.
	(sloww1): Likewise.  Drop argument M.
	(sloww2): Use fabs instead of if/else.
	(bsloww): Likewise.
	(bsloww1): Likewise.
	(bsloww2): Likewise.
2016-08-30 13:01:59 +05:30
Siddhesh Poyarekar
1a822c6184 Add fall through comments
Add fall through comments I had missed writing in previously.
2016-08-30 13:00:29 +05:30
Siddhesh Poyarekar
32efd690bd Consolidate reduce_and_compute code
This patch reshuffles the reduce_and_compute code so that the
structure matches other code structures of the same type elsewhere in
s_sin.c and s_sincos.c.  This is the beginning of an attempt to
consolidate and reduce code duplication in functions in s_sin.c to
make it easier to read and possibly also easier for the compiler to
optimize.

	* sysdeps/ieee754/dbl-64/s_sin.c (reduce_and_compute):
	Consolidate switch cases 0 and 2.
2016-08-30 12:51:39 +05:30
Paul E. Murphy
feb62ddacb Convert remaining complex function to generated files
Convert cpow, clog, clog10, cexp, csqrt, and cproj functions
into generated templates.  Note, ldbl-opt still retains
s_clog10l.c as the aliasing rules are non-trivial.
2016-08-29 12:43:38 -05:00
Paul E. Murphy
1dbc54f61e Prepare to convert remaining _Complex functions
This patch has no function changes, except to
ensure the git history correctly tracks the
changes to convert the double version of these
functions into a templated version.
2016-08-29 11:55:41 -05:00
Paul E. Murphy
d47d27d6c0 sparcv9: Restore fdiml@GLIBC_2.1
Use s_fdim.c from sysdeps/ieee754/ldbl-opt/ instead of
math/ to ensure a compat symbol for fdiml is created.
2016-08-29 11:54:45 -05:00
Joseph Myers
780257d48d Add fetestexceptflag.
TS 18661-1 defines an fetestexceptflag function to test the exception
state saved in an fexcept_t object by fegetexceptflag.

This patch implements this function for glibc.  Almost all
architectures save exception state in such a way that it can be
directly ANDed with exception flag bits, so rather than having lots of
fetestexceptflag implementations that all do the same thing, the math/
implementation is made to use this generic logic (which is also OK in
the fallback case where FE_ALL_EXCEPT is zero).  The only architecture
that seems to need anything different is s390.

(fegetexceptflag and fesetexceptflag use abbreviated filenames
fgetexcptflg.c and fsetexcptflg.c.  Because we are no longer concerned
by 14-character filename limits, fetestexceptflag uses the obvious
filename fetestexceptflag.c.)

The NEWS entry is intended to be expanded along the lines given in
<https://sourceware.org/ml/libc-alpha/2016-08/msg00356.html> when
fegetmode and fesetmode are added.

Tested for x86_64, x86, mips64 and powerpc.

	* math/fetestexceptflag.c: New file.
	* sysdeps/s390/fpu/fetestexceptflag.c: Likewise.  Comment by
	Stefan Liebler.
	* math/fenv.h [__GLIBC_USE (IEC_60559_BFP_EXT)]
	(fetestexceptflag): New function declaration.
	* manual/arith.texi (fetestexceptflag): Document function.
	* math/Versions (fetestexceptflag): New libm symbol at version
	GLIBC_2.25.
	* math/Makefile (libm-support): Add fetestexceptflag.
	(tests): Add test-fetestexceptflag.
	* math/test-fetestexceptflag.c: New file.
	* sysdeps/nacl/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/aarch64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/alpha/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/arm/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/hppa/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/nios2/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sh/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/tile/tilepro/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Likewise.
2016-08-29 11:47:21 +00:00
Florian Weimer
ef4f97648d malloc: Simplify static malloc interposition [BZ #20432]
Existing interposed mallocs do not define the glibc-internal
fork callbacks (and they should not), so statically interposed
mallocs lead to link failures because the strong reference from
fork pulls in glibc's malloc, resulting in multiple definitions
of malloc-related symbols.
2016-08-26 23:20:41 +02:00
Adhemerval Zanella
21e79af4cf Fix test-skeleton C99 designed initialization
ISO C forbids empty initializer braces (6.7.9 initializer-list must
contain at least one initializer). However GCC allows it, generating
a warning depending of the version.

With GCC 4.8 on ARM I noticed tst-initializers1.c fails to build with:

In file included from tst-initializers1.c:60:0:
../test-skeleton.c: In function 'delayed_exit_thread':
../test-skeleton.c:687:10: error: missing initializer for field 'tv_sec' of 'struct timespec' [-Werror=missing-field-initializers]
   struct timespec remaining = {}

While with GCC 5.1 the same warning is just spilled with -pedantic.
To be safe this patch just zero initialize the struct as expected.

Tested on armhf.

	* test-skeleton.c (delayed_exit_thread): Add initializer on struct
	timespec C99 designated initialization.
2016-08-26 17:33:47 -03:00
Florian Weimer
5a7ac040ef Correct incorrect bug number in changelog 2016-08-26 19:43:29 +02:00
Florian Weimer
7e625f7e85 nptl: Avoid expected SIGALRM in most tests [BZ #20432]
Before this change, several tests did not detect early deadlocks
because they used SIGALRM as the expected signal, and they ran
for the full default TIMEOUT seconds.

This commit adds a new delayed_exit function to the test skeleton,
along with several error-checking wrappers to pthread functions.
Additional error checking is introduced into several tests.
2016-08-26 19:40:17 +02:00
H.J. Lu
0ac8ee53e8 X86-64: Correct CFA in _dl_runtime_resolve
When stack is re-aligned in _dl_runtime_resolve, there is no need to
adjust CFA when allocating register save area on stack.

	* sysdeps/x86_64/dl-trampoline.h (_dl_runtime_resolve): Don't
	adjust CFA when allocating register save area on re-aligned
	stack.
2016-08-26 08:57:54 -07:00
Florian Weimer
6e263a27c4 string: More tests for strcmp, strcasecmp, strncmp, strncasecmp 2016-08-26 14:28:46 +02:00
Mark Wielaard
9d6861b8c3 Reduce memory size of tsearch red-black tree.
A tsearch red-black tree node contains 3 pointers (key, left, right)
and 1 bit to hold the red-black flag. When allocating new nodes
this 1 bit is expanded to a full word. Causing the overhead per node
to be 3 times the key size.

We can reduce this overhead to just 2 times the key size.
malloc returns naturally aligned memory. All nodes are internally
allocated with malloc and the left/right node pointers are used
as implementation details. So we can use the low bits of the
left/right node pointers to store extra information.

Replace all direct accesses of the struct node_t node pointers and
red-black value with defines that take care of the red-black flag in
the low bit of the (left) node pointer. This reduces the size of the
nodes on 32-bit systems from 16 to 12 bytes and on 64-bit systems
from 32 to 24 bytes.

Also fix a call to CHECK_TREE so the code can be build (and tested)
with DEBUGGING defined again.

V2 changes:

- Add assert after malloc to catch any odd pointers from bad
  interposed mallocs.
- Rename implementation flag to USE_MALLOC_LOW_BIT.

ChangeLog:

       * misc/tsearch.c (struct node_t): Reduce to 3 pointers if
       USE_MALLOC_LOW_BIT.  Define pointer/value accessors.
       (check_tree_recurse): Use newly defined accessors.
       (check_tree): Likewise.
       (maybe_split_for_insert): Likewise.
       (__tfind): Likewise.
       (__tdelete): Likewise.
       (trecurse): Likewise.
       (tdestroy_recurse): Likewise.
       (__tsearch): Likewise. And add asserts for malloc alignment.
       (__twalk): Cast root to node in case CHECK_TREE is defined.
2016-08-25 23:48:05 +02:00
Ernestas Kulik
7ed2b54451 localedata: lt_LT: use hyphens in d_fmt [BZ #20497]
The standard currently in effect (LST ISO 8601:1997) mandates the use
of hyphens (as opposed to full stops, currently) in date formats.  It
also matches current CLDR data (v29), Wikipedia's & Wikia's settings,
and Microsoft's Lithuanian Style Guide.
2016-08-24 16:07:02 -04:00
Samuel Thibault
66abf9bfbe mach: Add more allowed external headers
* scripts/check-local-headers.sh (exclude): Add mach_debug/.
2016-08-21 03:24:55 +02:00
Paul E. Murphy
d5602cebf1 Convert _Complex tangent functions to generated code
This converts s_c{,a}tan{,h}{f,,l} into a single
templated file c{,a}tan{,h}_template.c with the
exception of alpha.
2016-08-19 16:47:31 -05:00
Paul E. Murphy
f6d3a72eca Prepare to convert _Complex tangent functions
This patch has no function changes, except to
ensure the git history correctly tracks the
changes to convert the double version of these
functions into a templated version.
2016-08-19 16:47:14 -05:00
Paul E. Murphy
c50eee19c4 Convert _Complex sine functions to generated code
Refactor s_c{,a}sin{,h}{f,,l} into a single templated
macro.
2016-08-19 16:46:41 -05:00
Paul E. Murphy
ffb84f5e19 Prepare to convert _Complex sine functions
This patch has no function changes, except to
ensure the git history correctly tracks the
changes to convert the double version of these
functions into a templated version.
2016-08-19 16:12:36 -05:00
H.J. Lu
a6f20b6763 X86: Change bit_YMM_state to (1 << 2)
All other state bits, except for bit_YMM_state, are defined as (1 << N).
This patch changes bit_YMM_state from (2 << 1) to (1 << 2).

	* sysdeps/x86/cpu-features.h (bit_YMM_state): Set to (1 << 2).
2016-08-19 13:32:34 -07:00
Paul E. Murphy
4482ff226e Merge common usage of mul_split function
A number of files share identical code for the
mul_split function.

This moves the duplicated function mul_split into its
own header, and refactors the fma usage into a single
selection macro.  Likewise, mul_split when used by a
long double implementation is renamed mul_splitl for
clarity.
2016-08-19 11:29:43 -05:00
Paul E. Murphy
01ee387015 Convert _Complex cosine functions to generated code
This is fairly straight fowards.  m68k overrides are
updated to use the framework, and thus are simplified
a bit.
2016-08-19 11:28:55 -05:00
Paul E. Murphy
281f5073e5 Prepare to convert _Complex cosine functions
This patch has no function changes, except to
ensure the git history correctly tracks the
changes to convert the double version of these
functions into a templated version.
2016-08-19 11:28:17 -05:00
Paul E. Murphy
466929465e Add tst-wcstod-round
This extends tst-strtod-round with a few trivial changes
to also test the wide character variants of strto* using
similar macros to other shared tests.
2016-08-19 11:17:07 -05:00
Zack Weinberg
d3bf0bade6 Add tests for fortification of bcopy and bzero.
* debug/tst-chk1.c: Add tests for fortification of bcopy and bzero.
2016-08-19 09:04:35 -04:00
Torvald Riegel
6f9d4f595e Fix incorrect double-checked locking related to _res_hconf.initialized.
_res_hconf.initialized was not suitable for use in a multi-threaded
environment due to the lack of atomics and memory barriers.  Use of it was
also unnecessary because _res_hconf_init did the right thing by using
__libc_once.  This patch fixes the glibc-internal uses by just calling
_res_hconf_init unconditionally, and switches to a release MO atomic store
for _res_hconf.initialized to fix the glibc side of the synchronization
problem (which will maintain backward compatibility, but cannot fix the
lack of acquire MO on any glibc-external loads).

	[BZ #20477]
	* resolv/res_hconf.c (do_init): Use atomic access.
	* resolv/res_hconf.h: Add comments.
	* nscd/aicache.c (addhstaiX): Call _res_hconf_init unconditionally.
	* nss/getXXbyYY_r.c (REENTRANT_NAME): Likewise.
	* sysdeps/posix/getaddrinfo.c (gaih_inet): Likewise.
2016-08-18 20:53:37 +02:00
Stefan Liebler
b65f0b7b2e Get rid of array-bounds warning in __kernel_rem_pio2[f] with gcc 6.1 -O3.
On s390x I get the following werror when build with gcc 6.1 (or current gcc head) and -O3:
../sysdeps/ieee754/dbl-64/k_rem_pio2.c: In function ‘__kernel_rem_pio2’:
../sysdeps/ieee754/dbl-64/k_rem_pio2.c:254:18: error: array subscript is below array bounds [-Werror=array-bounds]
    for (k = 1; iq[jk - k] == 0; k++)
                ~~^~~~~~~~
I get the same error with sysdeps/ieee754/flt-32/k_rem_pio2f.c.

This patch adds DIAG_* macros around it.

ChangeLog:

	* sysdeps/ieee754/dbl-64/k_rem_pio2.c (__kernel_rem_pio2):
	Use DIAG_*_NEEDS_COMMENT macro to get rid of array-bounds warning.
	* sysdeps/ieee754/flt-32/k_rem_pio2f.c (__kernel_rem_pio2f):
	Likewise.
2016-08-18 12:20:35 +02:00
Florian Weimer
2c820533c6 argp: Do not override GCC keywords with macros [BZ #16907]
glibc provides fallback definitions already.  It is not necessary to
suppress warnings for unknown attributes because GCC does this
automatically for system headers.

This commit does not sync with gnulib because gnulib has started to use
_GL_* macros in the header file, which are arguably in the gnulib
implementation space and not suitable for an installed glibc header
file.
2016-08-18 11:15:42 +02:00
Paul E. Murphy
ee19f1de0d ldbl-128: Remove unused sqrtl declaration in e_asinl.c
This did not alter compilation for s390x and aarch64
targets.
2016-08-17 14:06:54 -05:00
Paul E. Murphy
ce6698ea0a Support for type-generic libm function implementations libm
This defines a new classes of libm objects.  The
<func>_template.c file which is used in conjunction
with the new makefile hooks to derive variants for
each type supported by the target machine.

The headers math-type-macros-TYPE.h are used to supply
macros to a common implementation of a function in
a file named FUNC_template.c and glued togethor via
a generated file matching existing naming in the
build directory.

This has the properties of preserving the existing
override mechanism and not requiring any arcane
build system twiddling.  Likewise, it enables machines
to override these files without any additional work.

I have verified the built objects for ppc64, x86_64,
alpha, arm, and m68k do not change in any meaningful
way with these changes using the Fedora cross toolchains.
I have verified the x86_64 and ppc64 changes still run.
2016-08-17 14:06:03 -05:00
Florian Weimer
1f645571d2 nptl/tst-once5: Reduce time to expected failure 2016-08-17 16:14:02 +02:00
Florian Weimer
d9067fca40 Do not override objects in libc.a in other static libraries [BZ #20452]
With this change, we no longer add sysdep.o and similar objects which
are present in libc.a to other static libraries.
2016-08-17 14:57:01 +02:00
Joseph Myers
c20809709a Fix soft-fp extended.h unpacking (GCC bug 77265).
soft-fp unpacking for x86 "extended" fails to clear the implicit
mantissa high bit that is explicit in that format, resulting in
problems for operations that expect this bit to be clear in raw
unpacked values.  Specifically, the code for this format is used only
for conversions to and from TFmode (__float128) in libgcc, where this
issue results in GCC bug 77265, extension of long double infinity to
__float128 wrongly produces a NaN.

This patch fixes this by always masking out the implicit bit on
unpacking, so that the results of unpacking meet the expectations of
the rest of the soft-fp code for a normal IEEE format.

Tested for x86_64 in libgcc in conjunction with a GCC testcase for
this issue (this code isn't used in glibc, only in libgcc).

	* soft-fp/extended.h [_FP_W_TYPE_SIZE < 64] (FP_UNPACK_RAW_E):
	Mask implicit bit out of unpacked value.
	[_FP_W_TYPE_SIZE < 64] (FP_UNPACK_RAW_EP): Likewise.
	[_FP_W_TYPE_SIZE >= 64] (FP_UNPACK_RAW_E): Likewise.
	[_FP_W_TYPE_SIZE >= 64] (FP_UNPACK_RAW_EP): Likewise.
2016-08-16 17:11:46 +00:00
Joseph Myers
8b7d13322a Add fesetexcept: sparc.
This patch adds a SPARC version of fesetexcept.  Untested.

	* sysdeps/sparc/fpu/fesetexcept.c: New file.
2016-08-16 16:25:57 +00:00
Joseph Myers
3292b26b54 Add fesetexcept: sh.
This patch adds an SH version of fesetexcept.  Untested.

	* sysdeps/sh/sh4/fpu/fesetexcept.c: New file.
2016-08-16 16:25:10 +00:00