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| author | Michael Meissner <meissner@linux.vnet.ibm.com> | 2017-09-14 20:44:40 +0000 |
|---|---|---|
| committer | Michael Meissner <meissner@gcc.gnu.org> | 2017-09-14 20:44:40 +0000 |
| commit | 12fca96eb386678706a0d87515c2d3412a67ad4d (patch) | |
| tree | f5c7de514690b6baab1686ec6ea8143b17ee618f /gcc/doc | |
| parent | 8b5865104c57edfc56c5a10bcbcdbaf8b527658f (diff) | |
| download | gcc-12fca96eb386678706a0d87515c2d3412a67ad4d.zip gcc-12fca96eb386678706a0d87515c2d3412a67ad4d.tar.gz gcc-12fca96eb386678706a0d87515c2d3412a67ad4d.tar.bz2 | |
rs6000-builtin.def (BU_FLOAT128_1_HW): New macros to support float128 built-in functions that require the ISA 3.0 hardware.
[gcc]
2017-09-14 Michael Meissner <meissner@linux.vnet.ibm.com>
* config/rs6000/rs6000-builtin.def (BU_FLOAT128_1_HW): New macros
to support float128 built-in functions that require the ISA 3.0
hardware.
(BU_FLOAT128_3_HW): Likewise.
(SQRTF128): Add support for the IEEE 128-bit square root and fma
built-in functions.
(FMAF128): Likewise.
(FMAQ): Likewise.
* config/rs6000/rs6000.c (rs6000_builtin_mask_calculate): Add
support for built-in functions that need the ISA 3.0 IEEE 128-bit
floating point instructions.
(rs6000_invalid_builtin): Likewise.
(rs6000_builtin_mask_names): Likewise.
* config/rs6000/rs6000.h (MASK_FLOAT128_HW): Likewise.
(RS6000_BTM_FLOAT128_HW): Likewise.
(RS6000_BTM_COMMON): Likewise.
* config/rs6000/rs6000.md (fma<mode>4_hw): Add a generator
function.
* doc/extend.texi (RS/6000 built-in functions): Document the
IEEE 128-bit floating point square root and fused multiply-add
built-in functions.
[gcc/testsuite]
2017-09-14 Michael Meissner <meissner@linux.vnet.ibm.com>
* gcc.target/powerpc/abs128-1.c: Use __builtin_fabsf128 instead of
__builtin_fabsq.
* gcc.target/powerpc/float128-5.c: Use __builtin_fabsf128 instead
of __builtin_fabsq. Prevent the test from running on 32-bit.
* gcc.target/powerpc/float128-fma1.c: New test.
* gcc.target/powerpc/float128-fma2.c: Likewise.
* gcc.target/powerpc/float128-sqrt1.c: Likewise.
* gcc.target/powerpc/float128-sqrt2.c: Likewise.
From-SVN: r252771
Diffstat (limited to 'gcc/doc')
| -rw-r--r-- | gcc/doc/extend.texi | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/gcc/doc/extend.texi b/gcc/doc/extend.texi index cd5733e..499a3db 100644 --- a/gcc/doc/extend.texi +++ b/gcc/doc/extend.texi @@ -15339,6 +15339,21 @@ Similar to @code{__builtin_nans}, except the return type is @code{__float128}. @findex __builtin_nansq @end table +The following built-in functions are available on Linux 64-bit systems +that use the ISA 3.0 instruction set. + +@table @code +@item __float128 __builtin_sqrtf128 (__float128) +Similar to @code{__builtin_sqrtf}, except the return and input types +are @code{__float128}. +@findex __builtin_sqrtf128 + +@item __float128 __builtin_fmaf128 (__float128, __float128, __float128) +Similar to @code{__builtin_fma}, except the return and input types are +@code{__float128}. +@findex __builtin_fmaf128 +@end table + The following built-in functions are available for the PowerPC family of processors, starting with ISA 2.05 or later (@option{-mcpu=power6} or @option{-mcmpb}): |