[v4] MIPSr6/math: Use builtin fma and fmaf
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Commit Message
From: YunQiang Su <syq@gcc.gnu.org>
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>
---
sysdeps/mips/fpu/math-use-builtins-fma.h | 35 ++++++++++++++++++++++++
1 file changed, 35 insertions(+)
create mode 100644 sysdeps/mips/fpu/math-use-builtins-fma.h
new file mode 100644
@@ -0,0 +1,35 @@
+/* Test that malloc uses mmap when sbrk or brk fails.
+ 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. */
+
+#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