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Continuing the move to use, within libm, public names for libm
functions that can be inlined as built-in functions on many
architectures, this patch moves calls to __copysign functions to call
the corresponding copysign names instead, with asm redirection to
__copysign when the calls are not inlined (all cases are inlined
except for IBM long double for powerpc soft-float / e500v1). This
eliminates the need for an inline function defining __copysign in
terms of __builtin_copysign.
Tested for x86_64, and with build-many-glibcs.py.
* include/math.h [!_ISOMAC && !(__FINITE_MATH_ONLY__ &&
__FINITE_MATH_ONLY__ > 0) && !NO_MATH_REDIRECT]
(MATH_REDIRECT_BINARY_ARGS): New macro.
[!_ISOMAC && !(__FINITE_MATH_ONLY__ && __FINITE_MATH_ONLY__ > 0)
&& !NO_MATH_REDIRECT] (copysign): Redirect using MATH_REDIRECT.
* sysdeps/alpha/fpu/s_copysign.c: Define NO_MATH_REDIRECT before
header inclusion.
* sysdeps/alpha/fpu/s_copysignf.c: Likewise.
* sysdeps/ieee754/dbl-64/s_copysign.c: Likewise.
* sysdeps/ieee754/float128/s_copysignf128.c: Likewise.
* sysdeps/ieee754/flt-32/s_copysignf.c: Likewise.
* sysdeps/ieee754/ldbl-128/s_copysignl.c: Likewise.
* sysdeps/ieee754/ldbl-128ibm/s_copysignl.c: Likewise.
* sysdeps/ieee754/ldbl-96/s_copysignl.c: Likewise.
* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_copysign.c:
Likewise.
* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_copysignf.c:
Likewise.
* sysdeps/powerpc/powerpc64/fpu/multiarch/s_copysign.c: Likewise.
* sysdeps/powerpc/powerpc64/fpu/multiarch/s_copysignf.c: Likewise.
* sysdeps/riscv/rvd/s_copysign.c: Likewise.
* sysdeps/riscv/rvf/s_copysignf.c: Likewise.
* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_copysign.c:
Likewise.
* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_copysignf.c:
Likewise.
* sysdeps/generic/math_private_calls.h
[!__MATH_DECLARING_LONG_DOUBLE || !NO_LONG_DOUBLE] (__copysign):
Do not declare and define as an inline function.
* math/divtc3.c (__divtc3): Use copysign functions instead of
__copysign variants.
* math/multc3.c (__multc3): Likewise.
* sysdeps/generic/math-type-macros.h (M_COPYSIGN): Likewise.
* sysdeps/ieee754/dbl-64/e_atan2.c (signArctan2): Likewise.
* sysdeps/ieee754/dbl-64/e_atanh.c (__ieee754_atanh): Likewise.
* sysdeps/ieee754/dbl-64/e_gamma_r.c (__ieee754_gamma_r):
Likewise.
* sysdeps/ieee754/dbl-64/e_jn.c (__ieee754_jn): Likewise.
(__ieee754_yn): Likewise.
* sysdeps/ieee754/dbl-64/s_asinh.c (__asinh): Likewise.
* sysdeps/ieee754/dbl-64/s_atan.c (__signArctan): Likewise.
* sysdeps/ieee754/dbl-64/s_scalbln.c (__scalbln): Likewise.
* sysdeps/ieee754/dbl-64/s_scalbn.c (__scalbn): Likewise.
* sysdeps/ieee754/dbl-64/s_sin.c (do_sin): Likewise.
(__sin): Likewise.
* sysdeps/ieee754/dbl-64/s_sincos.c (__sincos): Likewise.
* sysdeps/ieee754/dbl-64/wordsize-64/s_nearbyint.c (__nearbyint):
Likewise.
* sysdeps/ieee754/dbl-64/wordsize-64/s_scalbln.c (__scalbln):
Likewise.
* sysdeps/ieee754/dbl-64/wordsize-64/s_scalbn.c (__scalbn):
Likewise.
* sysdeps/ieee754/flt-32/e_atanhf.c (__ieee754_atanhf): Likewise.
* sysdeps/ieee754/flt-32/e_gammaf_r.c (__ieee754_gammaf_r):
Likewise.
* sysdeps/ieee754/flt-32/e_jnf.c (__ieee754_jnf): Likewise.
(__ieee754_ynf): Likewise.
* sysdeps/ieee754/flt-32/s_asinhf.c (__asinhf): Likewise.
* sysdeps/ieee754/flt-32/s_scalbnf.c (__scalbnf): Likewise.
* sysdeps/ieee754/k_standard.c (__kernel_standard): Likewise.
* sysdeps/ieee754/ldbl-128/e_gammal_r.c (__ieee754_gammal_r):
Likewise.
* sysdeps/ieee754/ldbl-128/e_jnl.c (__ieee754_jnl): Likewise.
(__ieee754_ynl): Likewise.
* sysdeps/ieee754/ldbl-128/s_scalblnl.c (__scalblnl): Likewise.
* sysdeps/ieee754/ldbl-128/s_scalbnl.c (__scalbnl): Likewise.
* sysdeps/ieee754/ldbl-128ibm/e_gammal_r.c (__ieee754_gammal_r):
Likewise.
* sysdeps/ieee754/ldbl-128ibm/e_jnl.c (__ieee754_jnl): Likewise.
(__ieee754_ynl): Likewise.
* sysdeps/ieee754/ldbl-128ibm/s_fmal.c (__fmal): Likewise.
* sysdeps/ieee754/ldbl-128ibm/s_scalblnl.c (__scalblnl): Likewise.
* sysdeps/ieee754/ldbl-128ibm/s_scalbnl.c (__scalbnl): Likewise.
* sysdeps/ieee754/ldbl-96/e_gammal_r.c (__ieee754_gammal_r):
Likewise.
* sysdeps/ieee754/ldbl-96/e_jnl.c (__ieee754_jnl): Likewise.
(__ieee754_ynl)
* sysdeps/ieee754/ldbl-96/s_asinhl.c (__asinhl): Likewise.
* sysdeps/ieee754/ldbl-96/s_scalblnl.c (__scalblnl): Likewise.
* sysdeps/ieee754/ldbl-opt/nldbl-copysign.c (copysignl): Likewise.
* sysdeps/powerpc/power5+/fpu/s_modf.c (__modf): Likewise.
* sysdeps/powerpc/power5+/fpu/s_modff.c (__modff): Likewise.
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This runs the attached sed script against these files using
a regex which aggressively matches long double literals
when not obviously part of a comment.
Likewise, 5 digit or less integral constants are replaced
with integer constants, excepting the two cases of 0 used
in large tables, which are also the only integral values
of the form x.0*E0L encountered within these converted
files.
Likewise, -L(x) is transformed into L(-x).
Naturally, the script has a few minor hiccups which are
more clearly remedied via the attached fixup patch. Such
hiccups include, context-sensitive promotion to a real
type, and munging constants inside harder to detect
comment blocks.
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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.
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Errno is not set and the testcases will fail.
Now the scalbln-aliases are removed in i386/m68
and the wrappers are used when calling the scalbln-functions.
On ia64 only scalblnf has its own implementation.
For scalbln and scalblnl the ieee754/dbl-64 and ieee754/ldbl-96 are used, thus
the wrappers are needed, too.
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Entire tree edited via find | grep | sed.
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