From: "Andreas K. Hüttel" <dilfridge@gentoo.org>
To: libc-alpha@sourceware.org
Cc: "YunQiang Su" <syq@gcc.gnu.org>,
"Adhemerval Zanella" <adhemerval.zanella@linaro.org>,
"Philippe Mathieu-Daudé" <philmd@linaro.org>
Subject: [COMMITTED] MIPSr6/math: Use builtin fma and fmaf
Date: Mon, 24 Jun 2024 19:45:11 +0200 [thread overview]
Message-ID: <20240624174605.17406-1-dilfridge@gentoo.org> (raw)
In-Reply-To: <CAKcpw6XZcbhcyLA53FYiH=+J-tD2X8yOXPmpYRTzJcj8ZitFag@mail.gmail.com>
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>
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
---
sysdeps/mips/fpu/math-use-builtins-fma.h | 13 +++++++++++++
1 file changed, 13 insertions(+)
create mode 100644 sysdeps/mips/fpu/math-use-builtins-fma.h
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 0000000000..af8c1f95ff
--- /dev/null
+++ b/sysdeps/mips/fpu/math-use-builtins-fma.h
@@ -0,0 +1,13 @@
+#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
--
2.44.2
next prev parent reply other threads:[~2024-06-24 17:46 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-06-04 1:31 [PATCH v3] " YunQiang Su
2024-06-04 18:00 ` Adhemerval Zanella Netto
2024-06-05 15:15 ` Maciej W. Rozycki
2024-06-05 15:26 ` YunQiang Su
2024-06-08 14:17 ` Maciej W. Rozycki
2024-06-09 6:43 ` YunQiang Su
2024-06-14 12:42 ` Adhemerval Zanella Netto
2024-06-14 13:06 ` Maciej W. Rozycki
2024-06-14 1:35 ` YunQiang Su
2024-06-24 17:45 ` Andreas K. Hüttel [this message]
2024-06-24 22:55 ` [COMMITTED] " Maciej W. Rozycki
2024-06-24 22:57 ` Andreas K. Huettel
2024-06-24 23:08 ` [REVERT] Revert "MIPSr6/math: Use builtin fma and fmaf" Andreas K. Hüttel
2024-06-06 7:07 ` [PATCH v3] MIPSr6/math: Use builtin fma and fmaf Philippe Mathieu-Daudé
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