extend.texi (PowerPC Built-in Functions): Rename this subsection.
gcc/ChangeLog: 2018-05-08 Kelvin Nilsen <kelvin@gcc.gnu.org> * doc/extend.texi (PowerPC Built-in Functions): Rename this subsection. (Basic PowerPC Built-in Functions): The new name of the subsection previously known as "PowerPC Built-in Functions". (Basic PowerPC Built-in Functions Available on all Configurations): New subsubsection. (Basic PowerPC Built-in Functions Available on ISA 2.05): New subsubsection. (Basic PowerPC Built-in Functions Available on ISA 2.06): New subsubsection. (Basic PowerPC Built-in Functions Available on ISA 2.07): New subsubsection. (Basic PowerPC Built-in Functions Available on ISA 3.0): New subsubsection. From-SVN: r260048
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Kelvin Nilsen
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@ -1,3 +1,20 @@
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2018-05-08 Kelvin Nilsen <kelvin@gcc.gnu.org>
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* doc/extend.texi (PowerPC Built-in Functions): Rename this
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subsection.
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(Basic PowerPC Built-in Functions): The new name of the
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subsection previously known as "PowerPC Built-in Functions".
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(Basic PowerPC Built-in Functions Available on all Configurations):
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New subsubsection.
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(Basic PowerPC Built-in Functions Available on ISA 2.05): New
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subsubsection.
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(Basic PowerPC Built-in Functions Available on ISA 2.06): New
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subsubsection.
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(Basic PowerPC Built-in Functions Available on ISA 2.07): New
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subsubsection.
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(Basic PowerPC Built-in Functions Available on ISA 3.0): New
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subsubsection.
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2018-05-08 Jakub Jelinek <jakub@redhat.com>
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PR target/85683
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@ -12475,7 +12475,7 @@ instructions, but allow the compiler to schedule those calls.
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* MSP430 Built-in Functions::
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* NDS32 Built-in Functions::
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* picoChip Built-in Functions::
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* PowerPC Built-in Functions::
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* Basic PowerPC Built-in Functions::
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* PowerPC AltiVec/VSX Built-in Functions::
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* PowerPC Hardware Transactional Memory Built-in Functions::
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* PowerPC Atomic Memory Operation Functions::
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@ -15534,11 +15534,16 @@ implementing assertions.
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@end table
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@node PowerPC Built-in Functions
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@subsection PowerPC Built-in Functions
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@node Basic PowerPC Built-in Functions
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@subsection Basic PowerPC Built-in Functions
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The following built-in functions are always available and can be used to
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check the PowerPC target platform type:
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This section describes PowerPC built-in functions that do not require
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the inclusion of any special header files to declare prototypes or
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provide macro definitions. The sections that follow describe
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additional PowerPC built-in functions.
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@node Basic PowerPC Built-in Functions Available on all Configurations
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@subsubsection Basic PowerPC Built-in Functions Available on all Configurations
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@deftypefn {Built-in Function} void __builtin_cpu_init (void)
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This function is a @code{nop} on the PowerPC platform and is included solely
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@ -15643,6 +15648,8 @@ CPU supports the set of compatible performance monitoring events.
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CPU supports the Embedded ISA category.
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@item cellbe
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CPU has a CELL broadband engine.
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@item darn
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CPU supports the @code{darn} (deliver a random number) instruction.
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@item dfp
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CPU has a decimal floating point unit.
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@item dscr
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@ -15659,6 +15666,9 @@ CPU has a floating point unit.
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CPU has hardware transaction memory instructions.
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@item htm-nosc
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Kernel aborts hardware transactions when a syscall is made.
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@item htm-no-suspend
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CPU supports hardware transaction memory but does not support the
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@code{tsuspend.} instruction.
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@item ic_snoop
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CPU supports icache snooping capabilities.
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@item ieee128
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@ -15687,6 +15697,8 @@ CPU supports the old POWER ISA (eg, 601)
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CPU supports 64-bit mode execution.
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@item ppcle
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CPU supports a little-endian mode that uses address swizzling.
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@item scv
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Kernel supports system call vectored.
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@item smt
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CPU support simultaneous multi-threading.
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@item spe
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@ -15718,17 +15730,79 @@ Here is an example:
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@end smallexample
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@end deftypefn
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These built-in functions are available for the PowerPC family of
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The following built-in functions are also available on all PowerPC
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processors:
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@smallexample
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float __builtin_recipdivf (float, float);
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float __builtin_rsqrtf (float);
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double __builtin_recipdiv (double, double);
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double __builtin_rsqrt (double);
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uint64_t __builtin_ppc_get_timebase ();
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unsigned long __builtin_ppc_mftb ();
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double __builtin_unpack_longdouble (long double, int);
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long double __builtin_pack_longdouble (double, double);
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@end smallexample
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The @code{__builtin_ppc_get_timebase} and @code{__builtin_ppc_mftb}
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functions generate instructions to read the Time Base Register. The
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@code{__builtin_ppc_get_timebase} function may generate multiple
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instructions and always returns the 64 bits of the Time Base Register.
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The @code{__builtin_ppc_mftb} function always generates one instruction and
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returns the Time Base Register value as an unsigned long, throwing away
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the most significant word on 32-bit environments.
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@node Basic PowerPC Built-in Functions Available on ISA 2.05
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@subsubsection Basic PowerPC Built-in Functions Available on ISA 2.05
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The basic built-in functions described in this section are
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available on the PowerPC family of processors starting with ISA 2.05
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or later. Unless specific options are explicitly disabled on the
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command line, specifying option @option{-mcpu=power6} has the effect of
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enabling the @option{-mpowerpc64}, @option{-mpowerpc-gpopt},
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@option{-mpowerpc-gfxopt}, @option{-mmfcrf}, @option{-mpopcntb},
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@option{-mfprnd}, @option{-mcmpb}, @option{-mhard-dfp}, and
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@option{-mrecip-precision} options. Specify the
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@option{-maltivec} and @option{-mfpgpr} options explicitly in
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combination with the above options if they are desired.
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The following functions require option @option{-mcmpb}.
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@smallexample
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unsigned long long __builtin_cmpb (unsigned long long int, unsigned long long int);
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unsigned int __builtin_cmpb (unsigned int, unsigned int);
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@end smallexample
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The @code{__builtin_cmpb} function
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performs a byte-wise compare on the contents of its two arguments,
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returning the result of the byte-wise comparison as the returned
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value. For each byte comparison, the corresponding byte of the return
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value holds 0xff if the input bytes are equal and 0 if the input bytes
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are not equal. If either of the arguments to this built-in function
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is wider than 32 bits, the function call expands into the form that
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expects @code{unsigned long long int} arguments
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which is only available on 64-bit targets.
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The following built-in functions are available
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when hardware decimal floating point
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(@option{-mhard-dfp}) is available:
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@smallexample
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_Decimal64 __builtin_ddedpd (int, _Decimal64);
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_Decimal128 __builtin_ddedpdq (int, _Decimal128);
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_Decimal64 __builtin_denbcd (int, _Decimal64);
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_Decimal128 __builtin_denbcdq (int, _Decimal128);
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_Decimal64 __builtin_diex (long long, _Decimal64);
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_Decimal128 _builtin_diexq (long long, _Decimal128);
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_Decimal64 __builtin_dscli (_Decimal64, int);
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_Decimal128 __builtin_dscliq (_Decimal128, int);
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_Decimal64 __builtin_dscri (_Decimal64, int);
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_Decimal128 __builtin_dscriq (_Decimal128, int);
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long long __builtin_dxex (_Decimal64);
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long long __builtin_dxexq (_Decimal128);
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_Decimal128 __builtin_pack_dec128 (unsigned long long, unsigned long long);
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unsigned long long __builtin_unpack_dec128 (_Decimal128, int);
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@end smallexample
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The following functions require @option{-mhard-float},
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@option{-mpowerpc-gfxopt}, and @option{-mpopcntb} options.
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@smallexample
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double __builtin_recipdiv (double, double);
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float __builtin_recipdivf (float, float);
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double __builtin_rsqrt (double);
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float __builtin_rsqrtf (float);
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@end smallexample
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The @code{vec_rsqrt}, @code{__builtin_rsqrt}, and
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@ -15740,43 +15814,85 @@ The @code{__builtin_recipdiv}, and @code{__builtin_recipdivf}
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functions generate multiple instructions to implement division using
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the reciprocal estimate instructions.
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The @code{__builtin_ppc_get_timebase} and @code{__builtin_ppc_mftb}
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functions generate instructions to read the Time Base Register. The
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@code{__builtin_ppc_get_timebase} function may generate multiple
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instructions and always returns the 64 bits of the Time Base Register.
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The @code{__builtin_ppc_mftb} function always generates one instruction and
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returns the Time Base Register value as an unsigned long, throwing away
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the most significant word on 32-bit environments.
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Additional built-in functions are available for the 64-bit PowerPC
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family of processors, for efficient use of 128-bit floating point
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(@code{__float128}) values.
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Previous versions of GCC supported some 'q' builtins for IEEE 128-bit
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floating point. These functions are now mapped into the equivalent
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'f128' builtin functions.
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The following functions require @option{-mhard-float} and
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@option{-mmultiple} options.
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@smallexample
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__builtin_fabsq is mapped into __builtin_fabsf128
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__builtin_copysignq is mapped into __builtin_copysignf128
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__builtin_infq is mapped into __builtin_inff128
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__builtin_huge_valq is mapped into __builtin_huge_valf128
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__builtin_nanq is mapped into __builtin_nanf128
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__builtin_nansq is mapped into __builtin_nansf128
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long double __builtin_pack_longdouble (double, double);
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double __builtin_unpack_longdouble (long double, int);
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@end smallexample
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@node Basic PowerPC Built-in Functions Available on ISA 2.06
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@subsubsection Basic PowerPC Built-in Functions Available on ISA 2.06
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The basic built-in functions described in this section are
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available on the PowerPC family of processors starting with ISA 2.05
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or later. Unless specific options are explicitly disabled on the
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command line, specifying option @option{-mcpu=power7} has the effect of
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enabling all the same options as for @option{-mcpu=power6} in
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addition to the @option{-maltivec}, @option{-mpopcntd}, and
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@option{-mvsx} options.
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The following basic built-in functions require @option{-mpopcntd}:
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@smallexample
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unsigned int __builtin_addg6s (unsigned int, unsigned int);
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long long __builtin_bpermd (long long, long long);
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unsigned int __builtin_cbcdtd (unsigned int);
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unsigned int __builtin_cdtbcd (unsigned int);
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long long __builtin_divde (long long, long long);
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unsigned long long __builtin_divdeu (unsigned long long, unsigned long long);
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int __builtin_divwe (int, int);
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unsigned int __builtin_divweu (unsigned int, unsigned int);
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vector __int128_t __builtin_pack_vector_int128 (long long, long long);
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void __builtin_rs6000_speculation_barrier (void);
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long long __builtin_unpack_vector_int128 (vector __int128_t, signed char);
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@end smallexample
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Of these, the @code{__builtin_divde} and @code{__builtin_divdeu} functions
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require a 64-bit environment.
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The following basic built-in functions, which are also supported on
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x86 targets, require @option{-mfloat128}.
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@smallexample
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__float128 __builtin_fabsq (__float128);
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__float128 __builtin_copysignq (__float128, __float128);
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__float128 __builtin_infq (void);
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__float128 __builtin_huge_valq (void);
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__float128 __builtin_nanq (void);
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__float128 __builtin_nansq (void);
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__float128 __builtin_sqrtf128 (__float128);
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__float128 __builtin_fmaf128 (__float128, __float128, __float128);
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@end smallexample
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@node Basic PowerPC Built-in Functions Available on ISA 2.07
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@subsubsection Basic PowerPC Built-in Functions Available on ISA 2.07
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The basic built-in functions described in this section are
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available on the PowerPC family of processors starting with ISA 2.07
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or later. Unless specific options are explicitly disabled on the
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command line, specifying option @option{-mcpu=power8} has the effect of
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enabling all the same options as for @option{-mcpu=power7} in
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addition to the @option{-mpower8-fusion}, @option{-mpower8-vector},
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@option{-mcrypto}, @option{-mhtm}, @option{-mquad-memory}, and
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@option{-mquad-memory-atomic} options.
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This section intentionally empty.
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@node Basic PowerPC Built-in Functions Available on ISA 3.0
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@subsubsection Basic PowerPC Built-in Functions Available on ISA 3.0
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The basic built-in functions described in this section are
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available on the PowerPC family of processors starting with ISA 3.0
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or later. Unless specific options are explicitly disabled on the
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command line, specifying option @option{-mcpu=power9} has the effect of
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enabling all the same options as for @option{-mcpu=power8} in
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addition to the @option{-misel} option.
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The following built-in functions are available on Linux 64-bit systems
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that use the ISA 3.0 instruction set.
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that use the ISA 3.0 instruction set (@option{-mcpu=power9}):
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@table @code
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@item __float128 __builtin_sqrtf128 (__float128)
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Perform a 128-bit IEEE floating point square root operation.
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@findex __builtin_sqrtf128
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@item __float128 __builtin_fmaf128 (__float128, __float128, __float128)
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Perform a 128-bit IEEE floating point fused multiply and add operation.
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@findex __builtin_fmaf128
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@item __float128 __builtin_addf128_round_to_odd (__float128, __float128)
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Perform a 128-bit IEEE floating point add using round to odd as the
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rounding mode.
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@ -15802,7 +15918,7 @@ Perform a 128-bit IEEE floating point square root using round to odd
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as the rounding mode.
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@findex __builtin_sqrtf128_round_to_odd
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@item __float128 __builtin_fmaf128 (__float128, __float128, __float128)
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@item __float128 __builtin_fmaf128_round_to_odd (__float128, __float128, __float128)
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Perform a 128-bit IEEE floating point fused multiply and add operation
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using round to odd as the rounding mode.
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@findex __builtin_fmaf128_round_to_odd
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@ -15813,78 +15929,26 @@ round to odd as the rounding mode.
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@findex __builtin_truncf128_round_to_odd
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@end table
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The following built-in functions are available for the PowerPC family
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of processors, starting with ISA 2.05 or later (@option{-mcpu=power6}
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or @option{-mcmpb}):
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@smallexample
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unsigned long long __builtin_cmpb (unsigned long long int, unsigned long long int);
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unsigned int __builtin_cmpb (unsigned int, unsigned int);
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@end smallexample
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The @code{__builtin_cmpb} function
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performs a byte-wise compare on the contents of its two arguments,
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returning the result of the byte-wise comparison as the returned
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value. For each byte comparison, the corresponding byte of the return
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value holds 0xff if the input bytes are equal and 0 if the input bytes
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are not equal. If either of the arguments to this built-in function
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is wider than 32 bits, the function call expands into the form that
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expects @code{unsigned long long int} arguments
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which is only available on 64-bit targets.
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The following built-in functions are available for the PowerPC family
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of processors, starting with ISA 2.06 or later (@option{-mcpu=power7}
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or @option{-mpopcntd}):
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@smallexample
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long __builtin_bpermd (long, long);
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int __builtin_divwe (int, int);
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unsigned int __builtin_divweu (unsigned int, unsigned int);
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long __builtin_divde (long, long);
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unsigned long __builtin_divdeu (unsigned long, unsigned long);
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unsigned int cdtbcd (unsigned int);
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unsigned int cbcdtd (unsigned int);
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unsigned int addg6s (unsigned int, unsigned int);
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void __builtin_rs6000_speculation_barrier (void);
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@end smallexample
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The @code{__builtin_divde} and @code{__builtin_divdeu} functions
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require a 64-bit environment supporting ISA 2.06 or later.
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The following built-in functions are available for the PowerPC family
|
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of processors, starting with ISA 3.0 or later (@option{-mcpu=power9}):
|
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The following additional built-in functions are also available for the
|
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PowerPC family of processors, starting with ISA 3.0 or later:
|
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@smallexample
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long long __builtin_darn (void);
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long long __builtin_darn_raw (void);
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int __builtin_darn_32 (void);
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@end smallexample
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unsigned int scalar_extract_exp (double source);
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unsigned long long int scalar_extract_exp (__ieee128 source);
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The @code{__builtin_darn} and @code{__builtin_darn_raw}
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functions require a
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64-bit environment supporting ISA 3.0 or later.
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The @code{__builtin_darn} function provides a 64-bit conditioned
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random number. The @code{__builtin_darn_raw} function provides a
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64-bit raw random number. The @code{__builtin_darn_32} function
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provides a 32-bit conditioned random number.
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unsigned long long int scalar_extract_sig (double source);
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unsigned __int128 scalar_extract_sig (__ieee128 source);
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double
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scalar_insert_exp (unsigned long long int significand, unsigned long long int exponent);
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double
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scalar_insert_exp (double significand, unsigned long long int exponent);
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ieee_128
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scalar_insert_exp (unsigned __int128 significand, unsigned long long int exponent);
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ieee_128
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scalar_insert_exp (ieee_128 significand, unsigned long long int exponent);
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int scalar_cmp_exp_gt (double arg1, double arg2);
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int scalar_cmp_exp_lt (double arg1, double arg2);
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int scalar_cmp_exp_eq (double arg1, double arg2);
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int scalar_cmp_exp_unordered (double arg1, double arg2);
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bool scalar_test_data_class (float source, const int condition);
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bool scalar_test_data_class (double source, const int condition);
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bool scalar_test_data_class (__ieee128 source, const int condition);
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bool scalar_test_neg (float source);
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bool scalar_test_neg (double source);
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bool scalar_test_neg (__ieee128 source);
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The following additional built-in functions are also available for the
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PowerPC family of processors, starting with ISA 3.0 or later:
|
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|
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@smallexample
|
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int __builtin_byte_in_set (unsigned char u, unsigned long long set);
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int __builtin_byte_in_range (unsigned char u, unsigned int range);
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int __builtin_byte_in_either_range (unsigned char u, unsigned int ranges);
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|
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@ -15909,81 +15973,6 @@ int __builtin_dfp_dtstsfi_ov (unsigned int comparison, _Decimal128 value);
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int __builtin_dfp_dtstsfi_ov_dd (unsigned int comparison, _Decimal64 value);
|
||||
int __builtin_dfp_dtstsfi_ov_td (unsigned int comparison, _Decimal128 value);
|
||||
@end smallexample
|
||||
|
||||
The @code{__builtin_darn} and @code{__builtin_darn_raw}
|
||||
functions require a
|
||||
64-bit environment supporting ISA 3.0 or later.
|
||||
The @code{__builtin_darn} function provides a 64-bit conditioned
|
||||
random number. The @code{__builtin_darn_raw} function provides a
|
||||
64-bit raw random number. The @code{__builtin_darn_32} function
|
||||
provides a 32-bit random number.
|
||||
|
||||
The @code{scalar_extract_exp} and @code{scalar_extract_sig}
|
||||
functions require a 64-bit environment supporting ISA 3.0 or later.
|
||||
The @code{scalar_extract_exp} and @code{scalar_extract_sig} built-in
|
||||
functions return the significand and the biased exponent value
|
||||
respectively of their @code{source} arguments.
|
||||
When supplied with a 64-bit @code{source} argument, the
|
||||
result returned by @code{scalar_extract_sig} has
|
||||
the @code{0x0010000000000000} bit set if the
|
||||
function's @code{source} argument is in normalized form.
|
||||
Otherwise, this bit is set to 0.
|
||||
When supplied with a 128-bit @code{source} argument, the
|
||||
@code{0x00010000000000000000000000000000} bit of the result is
|
||||
treated similarly.
|
||||
Note that the sign of the significand is not represented in the result
|
||||
returned from the @code{scalar_extract_sig} function. Use the
|
||||
@code{scalar_test_neg} function to test the sign of its @code{double}
|
||||
argument.
|
||||
|
||||
The @code{scalar_insert_exp}
|
||||
functions require a 64-bit environment supporting ISA 3.0 or later.
|
||||
When supplied with a 64-bit first argument, the
|
||||
@code{scalar_insert_exp} built-in function returns a double-precision
|
||||
floating point value that is constructed by assembling the values of its
|
||||
@code{significand} and @code{exponent} arguments. The sign of the
|
||||
result is copied from the most significant bit of the
|
||||
@code{significand} argument. The significand and exponent components
|
||||
of the result are composed of the least significant 11 bits of the
|
||||
@code{exponent} argument and the least significant 52 bits of the
|
||||
@code{significand} argument respectively.
|
||||
|
||||
When supplied with a 128-bit first argument, the
|
||||
@code{scalar_insert_exp} built-in function returns a quad-precision
|
||||
ieee floating point value. The sign bit of the result is copied from
|
||||
the most significant bit of the @code{significand} argument.
|
||||
The significand and exponent components of the result are composed of
|
||||
the least significant 15 bits of the @code{exponent} argument and the
|
||||
least significant 112 bits of the @code{significand} argument respectively.
|
||||
|
||||
The @code{scalar_cmp_exp_gt}, @code{scalar_cmp_exp_lt},
|
||||
@code{scalar_cmp_exp_eq}, and @code{scalar_cmp_exp_unordered} built-in
|
||||
functions return a non-zero value if @code{arg1} is greater than, less
|
||||
than, equal to, or not comparable to @code{arg2} respectively. The
|
||||
arguments are not comparable if one or the other equals NaN (not a
|
||||
number).
|
||||
|
||||
The @code{scalar_test_data_class} built-in function returns 1
|
||||
if any of the condition tests enabled by the value of the
|
||||
@code{condition} variable are true, and 0 otherwise. The
|
||||
@code{condition} argument must be a compile-time constant integer with
|
||||
value not exceeding 127. The
|
||||
@code{condition} argument is encoded as a bitmask with each bit
|
||||
enabling the testing of a different condition, as characterized by the
|
||||
following:
|
||||
@smallexample
|
||||
0x40 Test for NaN
|
||||
0x20 Test for +Infinity
|
||||
0x10 Test for -Infinity
|
||||
0x08 Test for +Zero
|
||||
0x04 Test for -Zero
|
||||
0x02 Test for +Denormal
|
||||
0x01 Test for -Denormal
|
||||
@end smallexample
|
||||
|
||||
The @code{scalar_test_neg} built-in function returns 1 if its
|
||||
@code{source} argument holds a negative value, 0 otherwise.
|
||||
|
||||
The @code{__builtin_byte_in_set} function requires a
|
||||
64-bit environment supporting ISA 3.0 or later. This function returns
|
||||
a non-zero value if and only if its @code{u} argument exactly equals one of
|
||||
|
|
@ -16034,240 +16023,7 @@ The @code{__builtin_dfp_dtstsfi_ov_dd} and
|
|||
require that the type of the @code{value} argument be
|
||||
@code{__Decimal64} and @code{__Decimal128} respectively.
|
||||
|
||||
The following built-in functions are also available for the PowerPC family
|
||||
of processors, starting with ISA 3.0 or later
|
||||
(@option{-mcpu=power9}). These string functions are described
|
||||
separately in order to group the descriptions closer to the function
|
||||
prototypes:
|
||||
@smallexample
|
||||
int vec_all_nez (vector signed char, vector signed char);
|
||||
int vec_all_nez (vector unsigned char, vector unsigned char);
|
||||
int vec_all_nez (vector signed short, vector signed short);
|
||||
int vec_all_nez (vector unsigned short, vector unsigned short);
|
||||
int vec_all_nez (vector signed int, vector signed int);
|
||||
int vec_all_nez (vector unsigned int, vector unsigned int);
|
||||
|
||||
int vec_any_eqz (vector signed char, vector signed char);
|
||||
int vec_any_eqz (vector unsigned char, vector unsigned char);
|
||||
int vec_any_eqz (vector signed short, vector signed short);
|
||||
int vec_any_eqz (vector unsigned short, vector unsigned short);
|
||||
int vec_any_eqz (vector signed int, vector signed int);
|
||||
int vec_any_eqz (vector unsigned int, vector unsigned int);
|
||||
|
||||
vector bool char vec_cmpnez (vector signed char arg1, vector signed char arg2);
|
||||
vector bool char vec_cmpnez (vector unsigned char arg1, vector unsigned char arg2);
|
||||
vector bool short vec_cmpnez (vector signed short arg1, vector signed short arg2);
|
||||
vector bool short vec_cmpnez (vector unsigned short arg1, vector unsigned short arg2);
|
||||
vector bool int vec_cmpnez (vector signed int arg1, vector signed int arg2);
|
||||
vector bool int vec_cmpnez (vector unsigned int, vector unsigned int);
|
||||
|
||||
vector signed char vec_cnttz (vector signed char);
|
||||
vector unsigned char vec_cnttz (vector unsigned char);
|
||||
vector signed short vec_cnttz (vector signed short);
|
||||
vector unsigned short vec_cnttz (vector unsigned short);
|
||||
vector signed int vec_cnttz (vector signed int);
|
||||
vector unsigned int vec_cnttz (vector unsigned int);
|
||||
vector signed long long vec_cnttz (vector signed long long);
|
||||
vector unsigned long long vec_cnttz (vector unsigned long long);
|
||||
|
||||
signed int vec_cntlz_lsbb (vector signed char);
|
||||
signed int vec_cntlz_lsbb (vector unsigned char);
|
||||
|
||||
signed int vec_cnttz_lsbb (vector signed char);
|
||||
signed int vec_cnttz_lsbb (vector unsigned char);
|
||||
|
||||
unsigned int vec_first_match_index (vector signed char, vector signed char);
|
||||
unsigned int vec_first_match_index (vector unsigned char,
|
||||
vector unsigned char);
|
||||
unsigned int vec_first_match_index (vector signed int, vector signed int);
|
||||
unsigned int vec_first_match_index (vector unsigned int, vector unsigned int);
|
||||
unsigned int vec_first_match_index (vector signed short, vector signed short);
|
||||
unsigned int vec_first_match_index (vector unsigned short,
|
||||
vector unsigned short);
|
||||
unsigned int vec_first_match_or_eos_index (vector signed char,
|
||||
vector signed char);
|
||||
unsigned int vec_first_match_or_eos_index (vector unsigned char,
|
||||
vector unsigned char);
|
||||
unsigned int vec_first_match_or_eos_index (vector signed int,
|
||||
vector signed int);
|
||||
unsigned int vec_first_match_or_eos_index (vector unsigned int,
|
||||
vector unsigned int);
|
||||
unsigned int vec_first_match_or_eos_index (vector signed short,
|
||||
vector signed short);
|
||||
unsigned int vec_first_match_or_eos_index (vector unsigned short,
|
||||
vector unsigned short);
|
||||
unsigned int vec_first_mismatch_index (vector signed char,
|
||||
vector signed char);
|
||||
unsigned int vec_first_mismatch_index (vector unsigned char,
|
||||
vector unsigned char);
|
||||
unsigned int vec_first_mismatch_index (vector signed int,
|
||||
vector signed int);
|
||||
unsigned int vec_first_mismatch_index (vector unsigned int,
|
||||
vector unsigned int);
|
||||
unsigned int vec_first_mismatch_index (vector signed short,
|
||||
vector signed short);
|
||||
unsigned int vec_first_mismatch_index (vector unsigned short,
|
||||
vector unsigned short);
|
||||
unsigned int vec_first_mismatch_or_eos_index (vector signed char,
|
||||
vector signed char);
|
||||
unsigned int vec_first_mismatch_or_eos_index (vector unsigned char,
|
||||
vector unsigned char);
|
||||
unsigned int vec_first_mismatch_or_eos_index (vector signed int,
|
||||
vector signed int);
|
||||
unsigned int vec_first_mismatch_or_eos_index (vector unsigned int,
|
||||
vector unsigned int);
|
||||
unsigned int vec_first_mismatch_or_eos_index (vector signed short,
|
||||
vector signed short);
|
||||
unsigned int vec_first_mismatch_or_eos_index (vector unsigned short,
|
||||
vector unsigned short);
|
||||
|
||||
vector unsigned short vec_pack_to_short_fp32 (vector float, vector float);
|
||||
|
||||
vector signed char vec_xl_be (signed long long, signed char *);
|
||||
vector unsigned char vec_xl_be (signed long long, unsigned char *);
|
||||
vector signed int vec_xl_be (signed long long, signed int *);
|
||||
vector unsigned int vec_xl_be (signed long long, unsigned int *);
|
||||
vector signed __int128 vec_xl_be (signed long long, signed __int128 *);
|
||||
vector unsigned __int128 vec_xl_be (signed long long, unsigned __int128 *);
|
||||
vector signed long long vec_xl_be (signed long long, signed long long *);
|
||||
vector unsigned long long vec_xl_be (signed long long, unsigned long long *);
|
||||
vector signed short vec_xl_be (signed long long, signed short *);
|
||||
vector unsigned short vec_xl_be (signed long long, unsigned short *);
|
||||
vector double vec_xl_be (signed long long, double *);
|
||||
vector float vec_xl_be (signed long long, float *);
|
||||
|
||||
vector signed char vec_xl_len (signed char *addr, size_t len);
|
||||
vector unsigned char vec_xl_len (unsigned char *addr, size_t len);
|
||||
vector signed int vec_xl_len (signed int *addr, size_t len);
|
||||
vector unsigned int vec_xl_len (unsigned int *addr, size_t len);
|
||||
vector signed __int128 vec_xl_len (signed __int128 *addr, size_t len);
|
||||
vector unsigned __int128 vec_xl_len (unsigned __int128 *addr, size_t len);
|
||||
vector signed long long vec_xl_len (signed long long *addr, size_t len);
|
||||
vector unsigned long long vec_xl_len (unsigned long long *addr, size_t len);
|
||||
vector signed short vec_xl_len (signed short *addr, size_t len);
|
||||
vector unsigned short vec_xl_len (unsigned short *addr, size_t len);
|
||||
vector double vec_xl_len (double *addr, size_t len);
|
||||
vector float vec_xl_len (float *addr, size_t len);
|
||||
|
||||
vector unsigned char vec_xl_len_r (unsigned char *addr, size_t len);
|
||||
|
||||
void vec_xst_len (vector signed char data, signed char *addr, size_t len);
|
||||
void vec_xst_len (vector unsigned char data, unsigned char *addr, size_t len);
|
||||
void vec_xst_len (vector signed int data, signed int *addr, size_t len);
|
||||
void vec_xst_len (vector unsigned int data, unsigned int *addr, size_t len);
|
||||
void vec_xst_len (vector unsigned __int128 data, unsigned __int128 *addr, size_t len);
|
||||
void vec_xst_len (vector signed long long data, signed long long *addr, size_t len);
|
||||
void vec_xst_len (vector unsigned long long data, unsigned long long *addr, size_t len);
|
||||
void vec_xst_len (vector signed short data, signed short *addr, size_t len);
|
||||
void vec_xst_len (vector unsigned short data, unsigned short *addr, size_t len);
|
||||
void vec_xst_len (vector signed __int128 data, signed __int128 *addr, size_t len);
|
||||
void vec_xst_len (vector double data, double *addr, size_t len);
|
||||
void vec_xst_len (vector float data, float *addr, size_t len);
|
||||
|
||||
void vec_xst_len_r (vector unsigned char data, unsigned char *addr, size_t len);
|
||||
|
||||
signed char vec_xlx (unsigned int index, vector signed char data);
|
||||
unsigned char vec_xlx (unsigned int index, vector unsigned char data);
|
||||
signed short vec_xlx (unsigned int index, vector signed short data);
|
||||
unsigned short vec_xlx (unsigned int index, vector unsigned short data);
|
||||
signed int vec_xlx (unsigned int index, vector signed int data);
|
||||
unsigned int vec_xlx (unsigned int index, vector unsigned int data);
|
||||
float vec_xlx (unsigned int index, vector float data);
|
||||
|
||||
signed char vec_xrx (unsigned int index, vector signed char data);
|
||||
unsigned char vec_xrx (unsigned int index, vector unsigned char data);
|
||||
signed short vec_xrx (unsigned int index, vector signed short data);
|
||||
unsigned short vec_xrx (unsigned int index, vector unsigned short data);
|
||||
signed int vec_xrx (unsigned int index, vector signed int data);
|
||||
unsigned int vec_xrx (unsigned int index, vector unsigned int data);
|
||||
float vec_xrx (unsigned int index, vector float data);
|
||||
@end smallexample
|
||||
|
||||
The @code{vec_all_nez}, @code{vec_any_eqz}, and @code{vec_cmpnez}
|
||||
perform pairwise comparisons between the elements at the same
|
||||
positions within their two vector arguments.
|
||||
The @code{vec_all_nez} function returns a
|
||||
non-zero value if and only if all pairwise comparisons are not
|
||||
equal and no element of either vector argument contains a zero.
|
||||
The @code{vec_any_eqz} function returns a
|
||||
non-zero value if and only if at least one pairwise comparison is equal
|
||||
or if at least one element of either vector argument contains a zero.
|
||||
The @code{vec_cmpnez} function returns a vector of the same type as
|
||||
its two arguments, within which each element consists of all ones to
|
||||
denote that either the corresponding elements of the incoming arguments are
|
||||
not equal or that at least one of the corresponding elements contains
|
||||
zero. Otherwise, the element of the returned vector contains all zeros.
|
||||
|
||||
The @code{vec_cntlz_lsbb} function returns the count of the number of
|
||||
consecutive leading byte elements (starting from position 0 within the
|
||||
supplied vector argument) for which the least-significant bit
|
||||
equals zero. The @code{vec_cnttz_lsbb} function returns the count of
|
||||
the number of consecutive trailing byte elements (starting from
|
||||
position 15 and counting backwards within the supplied vector
|
||||
argument) for which the least-significant bit equals zero.
|
||||
|
||||
The @code{vec_xl_len} and @code{vec_xst_len} functions require a
|
||||
64-bit environment supporting ISA 3.0 or later. The @code{vec_xl_len}
|
||||
function loads a variable length vector from memory. The
|
||||
@code{vec_xst_len} function stores a variable length vector to memory.
|
||||
With both the @code{vec_xl_len} and @code{vec_xst_len} functions, the
|
||||
@code{addr} argument represents the memory address to or from which
|
||||
data will be transferred, and the
|
||||
@code{len} argument represents the number of bytes to be
|
||||
transferred, as computed by the C expression @code{min((len & 0xff), 16)}.
|
||||
If this expression's value is not a multiple of the vector element's
|
||||
size, the behavior of this function is undefined.
|
||||
In the case that the underlying computer is configured to run in
|
||||
big-endian mode, the data transfer moves bytes 0 to @code{(len - 1)} of
|
||||
the corresponding vector. In little-endian mode, the data transfer
|
||||
moves bytes @code{(16 - len)} to @code{15} of the corresponding
|
||||
vector. For the load function, any bytes of the result vector that
|
||||
are not loaded from memory are set to zero.
|
||||
The value of the @code{addr} argument need not be aligned on a
|
||||
multiple of the vector's element size.
|
||||
|
||||
The @code{vec_xlx} and @code{vec_xrx} functions extract the single
|
||||
element selected by the @code{index} argument from the vector
|
||||
represented by the @code{data} argument. The @code{index} argument
|
||||
always specifies a byte offset, regardless of the size of the vector
|
||||
element. With @code{vec_xlx}, @code{index} is the offset of the first
|
||||
byte of the element to be extracted. With @code{vec_xrx}, @code{index}
|
||||
represents the last byte of the element to be extracted, measured
|
||||
from the right end of the vector. In other words, the last byte of
|
||||
the element to be extracted is found at position @code{(15 - index)}.
|
||||
There is no requirement that @code{index} be a multiple of the vector
|
||||
element size. However, if the size of the vector element added to
|
||||
@code{index} is greater than 15, the content of the returned value is
|
||||
undefined.
|
||||
|
||||
The following built-in functions are available for the PowerPC family
|
||||
of processors when hardware decimal floating point
|
||||
(@option{-mhard-dfp}) is available:
|
||||
@smallexample
|
||||
long long __builtin_dxex (_Decimal64);
|
||||
long long __builtin_dxexq (_Decimal128);
|
||||
_Decimal64 __builtin_ddedpd (int, _Decimal64);
|
||||
_Decimal128 __builtin_ddedpdq (int, _Decimal128);
|
||||
_Decimal64 __builtin_denbcd (int, _Decimal64);
|
||||
_Decimal128 __builtin_denbcdq (int, _Decimal128);
|
||||
_Decimal64 __builtin_diex (long long, _Decimal64);
|
||||
_Decimal128 _builtin_diexq (long long, _Decimal128);
|
||||
_Decimal64 __builtin_dscli (_Decimal64, int);
|
||||
_Decimal128 __builtin_dscliq (_Decimal128, int);
|
||||
_Decimal64 __builtin_dscri (_Decimal64, int);
|
||||
_Decimal128 __builtin_dscriq (_Decimal128, int);
|
||||
unsigned long long __builtin_unpack_dec128 (_Decimal128, int);
|
||||
_Decimal128 __builtin_pack_dec128 (unsigned long long, unsigned long long);
|
||||
@end smallexample
|
||||
|
||||
The following built-in functions are available for the PowerPC family
|
||||
of processors when the Vector Scalar (vsx) instruction set is
|
||||
available:
|
||||
@smallexample
|
||||
unsigned long long __builtin_unpack_vector_int128 (vector __int128_t, int);
|
||||
vector __int128_t __builtin_pack_vector_int128 (unsigned long long,
|
||||
unsigned long long);
|
||||
@end smallexample
|
||||
|
||||
@node PowerPC AltiVec/VSX Built-in Functions
|
||||
@subsection PowerPC AltiVec Built-in Functions
|
||||
|
|
@ -19040,6 +18796,312 @@ int __builtin_bcdsub_gt (vector __int128_t, vector __int128_t);
|
|||
int __builtin_bcdsub_ov (vector __int128_t, vector __int128_t);
|
||||
@end smallexample
|
||||
|
||||
The following additional built-in functions are also available for the
|
||||
PowerPC family of processors, starting with ISA 3.0
|
||||
(@option{-mcpu=power9}) or later:
|
||||
@smallexample
|
||||
unsigned int scalar_extract_exp (double source);
|
||||
unsigned long long int scalar_extract_exp (__ieee128 source);
|
||||
|
||||
unsigned long long int scalar_extract_sig (double source);
|
||||
unsigned __int128 scalar_extract_sig (__ieee128 source);
|
||||
|
||||
double
|
||||
scalar_insert_exp (unsigned long long int significand, unsigned long long int exponent);
|
||||
double
|
||||
scalar_insert_exp (double significand, unsigned long long int exponent);
|
||||
|
||||
ieee_128
|
||||
scalar_insert_exp (unsigned __int128 significand, unsigned long long int exponent);
|
||||
ieee_128
|
||||
scalar_insert_exp (ieee_128 significand, unsigned long long int exponent);
|
||||
|
||||
int scalar_cmp_exp_gt (double arg1, double arg2);
|
||||
int scalar_cmp_exp_lt (double arg1, double arg2);
|
||||
int scalar_cmp_exp_eq (double arg1, double arg2);
|
||||
int scalar_cmp_exp_unordered (double arg1, double arg2);
|
||||
|
||||
bool scalar_test_data_class (float source, const int condition);
|
||||
bool scalar_test_data_class (double source, const int condition);
|
||||
bool scalar_test_data_class (__ieee128 source, const int condition);
|
||||
|
||||
bool scalar_test_neg (float source);
|
||||
bool scalar_test_neg (double source);
|
||||
bool scalar_test_neg (__ieee128 source);
|
||||
@end smallexample
|
||||
|
||||
The @code{scalar_extract_exp} and @code{scalar_extract_sig}
|
||||
functions require a 64-bit environment supporting ISA 3.0 or later.
|
||||
The @code{scalar_extract_exp} and @code{scalar_extract_sig} built-in
|
||||
functions return the significand and the biased exponent value
|
||||
respectively of their @code{source} arguments.
|
||||
When supplied with a 64-bit @code{source} argument, the
|
||||
result returned by @code{scalar_extract_sig} has
|
||||
the @code{0x0010000000000000} bit set if the
|
||||
function's @code{source} argument is in normalized form.
|
||||
Otherwise, this bit is set to 0.
|
||||
When supplied with a 128-bit @code{source} argument, the
|
||||
@code{0x00010000000000000000000000000000} bit of the result is
|
||||
treated similarly.
|
||||
Note that the sign of the significand is not represented in the result
|
||||
returned from the @code{scalar_extract_sig} function. Use the
|
||||
@code{scalar_test_neg} function to test the sign of its @code{double}
|
||||
argument.
|
||||
|
||||
The @code{scalar_insert_exp}
|
||||
functions require a 64-bit environment supporting ISA 3.0 or later.
|
||||
When supplied with a 64-bit first argument, the
|
||||
@code{scalar_insert_exp} built-in function returns a double-precision
|
||||
floating point value that is constructed by assembling the values of its
|
||||
@code{significand} and @code{exponent} arguments. The sign of the
|
||||
result is copied from the most significant bit of the
|
||||
@code{significand} argument. The significand and exponent components
|
||||
of the result are composed of the least significant 11 bits of the
|
||||
@code{exponent} argument and the least significant 52 bits of the
|
||||
@code{significand} argument respectively.
|
||||
|
||||
When supplied with a 128-bit first argument, the
|
||||
@code{scalar_insert_exp} built-in function returns a quad-precision
|
||||
ieee floating point value. The sign bit of the result is copied from
|
||||
the most significant bit of the @code{significand} argument.
|
||||
The significand and exponent components of the result are composed of
|
||||
the least significant 15 bits of the @code{exponent} argument and the
|
||||
least significant 112 bits of the @code{significand} argument respectively.
|
||||
|
||||
The @code{scalar_cmp_exp_gt}, @code{scalar_cmp_exp_lt},
|
||||
@code{scalar_cmp_exp_eq}, and @code{scalar_cmp_exp_unordered} built-in
|
||||
functions return a non-zero value if @code{arg1} is greater than, less
|
||||
than, equal to, or not comparable to @code{arg2} respectively. The
|
||||
arguments are not comparable if one or the other equals NaN (not a
|
||||
number).
|
||||
|
||||
The @code{scalar_test_data_class} built-in function returns 1
|
||||
if any of the condition tests enabled by the value of the
|
||||
@code{condition} variable are true, and 0 otherwise. The
|
||||
@code{condition} argument must be a compile-time constant integer with
|
||||
value not exceeding 127. The
|
||||
@code{condition} argument is encoded as a bitmask with each bit
|
||||
enabling the testing of a different condition, as characterized by the
|
||||
following:
|
||||
@smallexample
|
||||
0x40 Test for NaN
|
||||
0x20 Test for +Infinity
|
||||
0x10 Test for -Infinity
|
||||
0x08 Test for +Zero
|
||||
0x04 Test for -Zero
|
||||
0x02 Test for +Denormal
|
||||
0x01 Test for -Denormal
|
||||
@end smallexample
|
||||
|
||||
The @code{scalar_test_neg} built-in function returns 1 if its
|
||||
@code{source} argument holds a negative value, 0 otherwise.
|
||||
|
||||
The following built-in functions are also available for the PowerPC family
|
||||
of processors, starting with ISA 3.0 or later
|
||||
(@option{-mcpu=power9}). These string functions are described
|
||||
separately in order to group the descriptions closer to the function
|
||||
prototypes:
|
||||
@smallexample
|
||||
int vec_all_nez (vector signed char, vector signed char);
|
||||
int vec_all_nez (vector unsigned char, vector unsigned char);
|
||||
int vec_all_nez (vector signed short, vector signed short);
|
||||
int vec_all_nez (vector unsigned short, vector unsigned short);
|
||||
int vec_all_nez (vector signed int, vector signed int);
|
||||
int vec_all_nez (vector unsigned int, vector unsigned int);
|
||||
|
||||
int vec_any_eqz (vector signed char, vector signed char);
|
||||
int vec_any_eqz (vector unsigned char, vector unsigned char);
|
||||
int vec_any_eqz (vector signed short, vector signed short);
|
||||
int vec_any_eqz (vector unsigned short, vector unsigned short);
|
||||
int vec_any_eqz (vector signed int, vector signed int);
|
||||
int vec_any_eqz (vector unsigned int, vector unsigned int);
|
||||
|
||||
vector bool char vec_cmpnez (vector signed char arg1, vector signed char arg2);
|
||||
vector bool char vec_cmpnez (vector unsigned char arg1, vector unsigned char arg2);
|
||||
vector bool short vec_cmpnez (vector signed short arg1, vector signed short arg2);
|
||||
vector bool short vec_cmpnez (vector unsigned short arg1, vector unsigned short arg2);
|
||||
vector bool int vec_cmpnez (vector signed int arg1, vector signed int arg2);
|
||||
vector bool int vec_cmpnez (vector unsigned int, vector unsigned int);
|
||||
|
||||
vector signed char vec_cnttz (vector signed char);
|
||||
vector unsigned char vec_cnttz (vector unsigned char);
|
||||
vector signed short vec_cnttz (vector signed short);
|
||||
vector unsigned short vec_cnttz (vector unsigned short);
|
||||
vector signed int vec_cnttz (vector signed int);
|
||||
vector unsigned int vec_cnttz (vector unsigned int);
|
||||
vector signed long long vec_cnttz (vector signed long long);
|
||||
vector unsigned long long vec_cnttz (vector unsigned long long);
|
||||
|
||||
signed int vec_cntlz_lsbb (vector signed char);
|
||||
signed int vec_cntlz_lsbb (vector unsigned char);
|
||||
|
||||
signed int vec_cnttz_lsbb (vector signed char);
|
||||
signed int vec_cnttz_lsbb (vector unsigned char);
|
||||
|
||||
unsigned int vec_first_match_index (vector signed char, vector signed char);
|
||||
unsigned int vec_first_match_index (vector unsigned char,
|
||||
vector unsigned char);
|
||||
unsigned int vec_first_match_index (vector signed int, vector signed int);
|
||||
unsigned int vec_first_match_index (vector unsigned int, vector unsigned int);
|
||||
unsigned int vec_first_match_index (vector signed short, vector signed short);
|
||||
unsigned int vec_first_match_index (vector unsigned short,
|
||||
vector unsigned short);
|
||||
unsigned int vec_first_match_or_eos_index (vector signed char,
|
||||
vector signed char);
|
||||
unsigned int vec_first_match_or_eos_index (vector unsigned char,
|
||||
vector unsigned char);
|
||||
unsigned int vec_first_match_or_eos_index (vector signed int,
|
||||
vector signed int);
|
||||
unsigned int vec_first_match_or_eos_index (vector unsigned int,
|
||||
vector unsigned int);
|
||||
unsigned int vec_first_match_or_eos_index (vector signed short,
|
||||
vector signed short);
|
||||
unsigned int vec_first_match_or_eos_index (vector unsigned short,
|
||||
vector unsigned short);
|
||||
unsigned int vec_first_mismatch_index (vector signed char,
|
||||
vector signed char);
|
||||
unsigned int vec_first_mismatch_index (vector unsigned char,
|
||||
vector unsigned char);
|
||||
unsigned int vec_first_mismatch_index (vector signed int,
|
||||
vector signed int);
|
||||
unsigned int vec_first_mismatch_index (vector unsigned int,
|
||||
vector unsigned int);
|
||||
unsigned int vec_first_mismatch_index (vector signed short,
|
||||
vector signed short);
|
||||
unsigned int vec_first_mismatch_index (vector unsigned short,
|
||||
vector unsigned short);
|
||||
unsigned int vec_first_mismatch_or_eos_index (vector signed char,
|
||||
vector signed char);
|
||||
unsigned int vec_first_mismatch_or_eos_index (vector unsigned char,
|
||||
vector unsigned char);
|
||||
unsigned int vec_first_mismatch_or_eos_index (vector signed int,
|
||||
vector signed int);
|
||||
unsigned int vec_first_mismatch_or_eos_index (vector unsigned int,
|
||||
vector unsigned int);
|
||||
unsigned int vec_first_mismatch_or_eos_index (vector signed short,
|
||||
vector signed short);
|
||||
unsigned int vec_first_mismatch_or_eos_index (vector unsigned short,
|
||||
vector unsigned short);
|
||||
|
||||
vector unsigned short vec_pack_to_short_fp32 (vector float, vector float);
|
||||
|
||||
vector signed char vec_xl_be (signed long long, signed char *);
|
||||
vector unsigned char vec_xl_be (signed long long, unsigned char *);
|
||||
vector signed int vec_xl_be (signed long long, signed int *);
|
||||
vector unsigned int vec_xl_be (signed long long, unsigned int *);
|
||||
vector signed __int128 vec_xl_be (signed long long, signed __int128 *);
|
||||
vector unsigned __int128 vec_xl_be (signed long long, unsigned __int128 *);
|
||||
vector signed long long vec_xl_be (signed long long, signed long long *);
|
||||
vector unsigned long long vec_xl_be (signed long long, unsigned long long *);
|
||||
vector signed short vec_xl_be (signed long long, signed short *);
|
||||
vector unsigned short vec_xl_be (signed long long, unsigned short *);
|
||||
vector double vec_xl_be (signed long long, double *);
|
||||
vector float vec_xl_be (signed long long, float *);
|
||||
|
||||
vector signed char vec_xl_len (signed char *addr, size_t len);
|
||||
vector unsigned char vec_xl_len (unsigned char *addr, size_t len);
|
||||
vector signed int vec_xl_len (signed int *addr, size_t len);
|
||||
vector unsigned int vec_xl_len (unsigned int *addr, size_t len);
|
||||
vector signed __int128 vec_xl_len (signed __int128 *addr, size_t len);
|
||||
vector unsigned __int128 vec_xl_len (unsigned __int128 *addr, size_t len);
|
||||
vector signed long long vec_xl_len (signed long long *addr, size_t len);
|
||||
vector unsigned long long vec_xl_len (unsigned long long *addr, size_t len);
|
||||
vector signed short vec_xl_len (signed short *addr, size_t len);
|
||||
vector unsigned short vec_xl_len (unsigned short *addr, size_t len);
|
||||
vector double vec_xl_len (double *addr, size_t len);
|
||||
vector float vec_xl_len (float *addr, size_t len);
|
||||
|
||||
vector unsigned char vec_xl_len_r (unsigned char *addr, size_t len);
|
||||
|
||||
void vec_xst_len (vector signed char data, signed char *addr, size_t len);
|
||||
void vec_xst_len (vector unsigned char data, unsigned char *addr, size_t len);
|
||||
void vec_xst_len (vector signed int data, signed int *addr, size_t len);
|
||||
void vec_xst_len (vector unsigned int data, unsigned int *addr, size_t len);
|
||||
void vec_xst_len (vector unsigned __int128 data, unsigned __int128 *addr, size_t len);
|
||||
void vec_xst_len (vector signed long long data, signed long long *addr, size_t len);
|
||||
void vec_xst_len (vector unsigned long long data, unsigned long long *addr, size_t len);
|
||||
void vec_xst_len (vector signed short data, signed short *addr, size_t len);
|
||||
void vec_xst_len (vector unsigned short data, unsigned short *addr, size_t len);
|
||||
void vec_xst_len (vector signed __int128 data, signed __int128 *addr, size_t len);
|
||||
void vec_xst_len (vector double data, double *addr, size_t len);
|
||||
void vec_xst_len (vector float data, float *addr, size_t len);
|
||||
|
||||
void vec_xst_len_r (vector unsigned char data, unsigned char *addr, size_t len);
|
||||
|
||||
signed char vec_xlx (unsigned int index, vector signed char data);
|
||||
unsigned char vec_xlx (unsigned int index, vector unsigned char data);
|
||||
signed short vec_xlx (unsigned int index, vector signed short data);
|
||||
unsigned short vec_xlx (unsigned int index, vector unsigned short data);
|
||||
signed int vec_xlx (unsigned int index, vector signed int data);
|
||||
unsigned int vec_xlx (unsigned int index, vector unsigned int data);
|
||||
float vec_xlx (unsigned int index, vector float data);
|
||||
|
||||
signed char vec_xrx (unsigned int index, vector signed char data);
|
||||
unsigned char vec_xrx (unsigned int index, vector unsigned char data);
|
||||
signed short vec_xrx (unsigned int index, vector signed short data);
|
||||
unsigned short vec_xrx (unsigned int index, vector unsigned short data);
|
||||
signed int vec_xrx (unsigned int index, vector signed int data);
|
||||
unsigned int vec_xrx (unsigned int index, vector unsigned int data);
|
||||
float vec_xrx (unsigned int index, vector float data);
|
||||
@end smallexample
|
||||
|
||||
The @code{vec_all_nez}, @code{vec_any_eqz}, and @code{vec_cmpnez}
|
||||
perform pairwise comparisons between the elements at the same
|
||||
positions within their two vector arguments.
|
||||
The @code{vec_all_nez} function returns a
|
||||
non-zero value if and only if all pairwise comparisons are not
|
||||
equal and no element of either vector argument contains a zero.
|
||||
The @code{vec_any_eqz} function returns a
|
||||
non-zero value if and only if at least one pairwise comparison is equal
|
||||
or if at least one element of either vector argument contains a zero.
|
||||
The @code{vec_cmpnez} function returns a vector of the same type as
|
||||
its two arguments, within which each element consists of all ones to
|
||||
denote that either the corresponding elements of the incoming arguments are
|
||||
not equal or that at least one of the corresponding elements contains
|
||||
zero. Otherwise, the element of the returned vector contains all zeros.
|
||||
|
||||
The @code{vec_cntlz_lsbb} function returns the count of the number of
|
||||
consecutive leading byte elements (starting from position 0 within the
|
||||
supplied vector argument) for which the least-significant bit
|
||||
equals zero. The @code{vec_cnttz_lsbb} function returns the count of
|
||||
the number of consecutive trailing byte elements (starting from
|
||||
position 15 and counting backwards within the supplied vector
|
||||
argument) for which the least-significant bit equals zero.
|
||||
|
||||
The @code{vec_xl_len} and @code{vec_xst_len} functions require a
|
||||
64-bit environment supporting ISA 3.0 or later. The @code{vec_xl_len}
|
||||
function loads a variable length vector from memory. The
|
||||
@code{vec_xst_len} function stores a variable length vector to memory.
|
||||
With both the @code{vec_xl_len} and @code{vec_xst_len} functions, the
|
||||
@code{addr} argument represents the memory address to or from which
|
||||
data will be transferred, and the
|
||||
@code{len} argument represents the number of bytes to be
|
||||
transferred, as computed by the C expression @code{min((len & 0xff), 16)}.
|
||||
If this expression's value is not a multiple of the vector element's
|
||||
size, the behavior of this function is undefined.
|
||||
In the case that the underlying computer is configured to run in
|
||||
big-endian mode, the data transfer moves bytes 0 to @code{(len - 1)} of
|
||||
the corresponding vector. In little-endian mode, the data transfer
|
||||
moves bytes @code{(16 - len)} to @code{15} of the corresponding
|
||||
vector. For the load function, any bytes of the result vector that
|
||||
are not loaded from memory are set to zero.
|
||||
The value of the @code{addr} argument need not be aligned on a
|
||||
multiple of the vector's element size.
|
||||
|
||||
The @code{vec_xlx} and @code{vec_xrx} functions extract the single
|
||||
element selected by the @code{index} argument from the vector
|
||||
represented by the @code{data} argument. The @code{index} argument
|
||||
always specifies a byte offset, regardless of the size of the vector
|
||||
element. With @code{vec_xlx}, @code{index} is the offset of the first
|
||||
byte of the element to be extracted. With @code{vec_xrx}, @code{index}
|
||||
represents the last byte of the element to be extracted, measured
|
||||
from the right end of the vector. In other words, the last byte of
|
||||
the element to be extracted is found at position @code{(15 - index)}.
|
||||
There is no requirement that @code{index} be a multiple of the vector
|
||||
element size. However, if the size of the vector element added to
|
||||
@code{index} is greater than 15, the content of the returned value is
|
||||
undefined.
|
||||
|
||||
If the ISA 3.0 instruction set additions (@option{-mcpu=power9})
|
||||
are available:
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue