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| author | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2020-06-05 14:44:44 +0000 |
|---|---|---|
| committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2020-06-22 11:09:50 -0300 |
| commit | 9dbb3fdfb788129d20a7d456be94157f31f38800 (patch) | |
| tree | 56dee4420c1f7440231eafea1538245f656a61d1 | |
| parent | 3ca05a8e9e8f13d93bd27ceb998075bdcd63d9f9 (diff) | |
| download | glibc-9dbb3fdfb788129d20a7d456be94157f31f38800.tar.gz glibc-9dbb3fdfb788129d20a7d456be94157f31f38800.tar.xz glibc-9dbb3fdfb788129d20a7d456be94157f31f38800.zip | |
riscv: Use sqrt{f} builtin
Checked with a build for riscv64-linux-gnu-rv64imac-lp64 (no builtin support), riscv64-linux-gnu-rv64imafdc-lp64, and riscv64-linux-gnu-rv64imafdc-lp64d.
| -rw-r--r-- | sysdeps/riscv/rvd/e_sqrt.c | 28 | ||||
| -rw-r--r-- | sysdeps/riscv/rvd/math-use-builtins-sqrt.h | 4 | ||||
| -rw-r--r-- | sysdeps/riscv/rvf/e_sqrtf.c | 28 |
3 files changed, 4 insertions, 56 deletions
diff --git a/sysdeps/riscv/rvd/e_sqrt.c b/sysdeps/riscv/rvd/e_sqrt.c deleted file mode 100644 index 7defcb5785..0000000000 --- a/sysdeps/riscv/rvd/e_sqrt.c +++ /dev/null @@ -1,28 +0,0 @@ -/* Double precision floating point square root. RISC-V version. - Copyright (C) 2017-2020 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/>. */ - -#include <math.h> -#include <libm-alias-finite.h> - -double -__ieee754_sqrt (double x) -{ - asm ("fsqrt.d %0, %1" : "=f" (x) : "f" (x)); - return x; -} -libm_alias_finite (__ieee754_sqrt, __sqrt) diff --git a/sysdeps/riscv/rvd/math-use-builtins-sqrt.h b/sysdeps/riscv/rvd/math-use-builtins-sqrt.h new file mode 100644 index 0000000000..e94c915ba6 --- /dev/null +++ b/sysdeps/riscv/rvd/math-use-builtins-sqrt.h @@ -0,0 +1,4 @@ +#define USE_SQRT_BUILTIN 1 +#define USE_SQRTF_BUILTIN 1 +#define USE_SQRTL_BUILTIN 0 +#define USE_SQRTF128_BUILTIN 0 diff --git a/sysdeps/riscv/rvf/e_sqrtf.c b/sysdeps/riscv/rvf/e_sqrtf.c deleted file mode 100644 index 04835e3e53..0000000000 --- a/sysdeps/riscv/rvf/e_sqrtf.c +++ /dev/null @@ -1,28 +0,0 @@ -/* Single precision floating point square root. RISC-V version. - Copyright (C) 2017-2020 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/>. */ - -#include <math.h> -#include <libm-alias-finite.h> - -float -__ieee754_sqrtf (float x) -{ - asm ("fsqrt.s %0, %1" : "=f" (x) : "f" (x)); - return x; -} -libm_alias_finite (__ieee754_sqrtf, __sqrtf) |