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| author | YunQiang Su <syq@gcc.gnu.org> | 2024-06-21 00:07:56 +0800 |
|---|---|---|
| committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2024-07-01 14:52:30 -0300 |
| commit | 9d0e9c8a138fe25e58fdfc21c2e000425579d9a8 (patch) | |
| tree | bea056bb5ca064f055f1a8ea6acfdd28ef27ec85 | |
| parent | 018f0fc3b818d4d1460a4e2384c24802504b1d20 (diff) | |
| download | glibc-9d0e9c8a138fe25e58fdfc21c2e000425579d9a8.zip glibc-9d0e9c8a138fe25e58fdfc21c2e000425579d9a8.tar.gz glibc-9d0e9c8a138fe25e58fdfc21c2e000425579d9a8.tar.bz2 | |
MIPSr6/math: Use builtin fma and fmaf
MIPSr6 has MADDF.s/MADDF.d instructions, which are fused.
In MIPS ISA, double support can be subsetted. Only FMAF is enabled
for this case.
* sysdeps/mips/fpu/math-use-builtins-fma.h
Signed-off-by: YunQiang Su <syq@gcc.gnu.org>
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
| -rw-r--r-- | sysdeps/mips/fpu/math-use-builtins-fma.h | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/sysdeps/mips/fpu/math-use-builtins-fma.h b/sysdeps/mips/fpu/math-use-builtins-fma.h new file mode 100644 index 0000000..57108f9 --- /dev/null +++ b/sysdeps/mips/fpu/math-use-builtins-fma.h @@ -0,0 +1,36 @@ +/* Copyright (C) 2024 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <https://www.gnu.org/licenses/>. */ + +/* MIPSr6 has MADDF.s/MADDF.d instructions, which are fused. In MIPS + ISA, double support can be subsetted. Only FMAF is enabled for this + case. */ + +#include <sysdep.h> + +#if __mips_isa_rev >= 6 +# ifdef __mips_single_float +# define USE_FMA_BUILTIN 0 +# else +# define USE_FMA_BUILTIN 1 +# endif +# define USE_FMAF_BUILTIN 1 +#else +# define USE_FMA_BUILTIN 0 +# define USE_FMAF_BUILTIN 0 +#endif +#define USE_FMAL_BUILTIN 0 +#define USE_FMAF128_BUILTIN 0 |