[PATCH] LoongArch: Use __builtin_{fmax,fmaxf,fmin,fminf} with GCC >= 13

Xi Ruoyao xry111@xry111.site
Sat Aug 20 08:43:44 GMT 2022


GCC 13 compiles these built-ins to {fmax,fmin}.{s/d} instruction, use
them instead of the generic implementation.

Link: https://gcc.gnu.org/r13-2085
Signed-off-by: Xi Ruoyao <xry111@xry111.site>
---
 sysdeps/loongarch/fpu/math-use-builtins-fmax.h | 10 ++++++++++
 sysdeps/loongarch/fpu/math-use-builtins-fmin.h | 10 ++++++++++
 2 files changed, 20 insertions(+)
 create mode 100644 sysdeps/loongarch/fpu/math-use-builtins-fmax.h
 create mode 100644 sysdeps/loongarch/fpu/math-use-builtins-fmin.h

diff --git a/sysdeps/loongarch/fpu/math-use-builtins-fmax.h b/sysdeps/loongarch/fpu/math-use-builtins-fmax.h
new file mode 100644
index 0000000000..5d22567bd3
--- /dev/null
+++ b/sysdeps/loongarch/fpu/math-use-builtins-fmax.h
@@ -0,0 +1,10 @@
+#if __GNUC_PREREQ (13, 0)
+# define USE_FMAX_BUILTIN 1
+# define USE_FMAXF_BUILTIN 1
+#else
+# define USE_FMAX_BUILTIN 0
+# define USE_FMAXF_BUILTIN 0
+#endif
+
+#define USE_FMAXL_BUILTIN 0
+#define USE_FMAXF128_BUILTIN 0
diff --git a/sysdeps/loongarch/fpu/math-use-builtins-fmin.h b/sysdeps/loongarch/fpu/math-use-builtins-fmin.h
new file mode 100644
index 0000000000..4d28b41c0d
--- /dev/null
+++ b/sysdeps/loongarch/fpu/math-use-builtins-fmin.h
@@ -0,0 +1,10 @@
+#if __GNUC_PREREQ (13, 0)
+# define USE_FMIN_BUILTIN 1
+# define USE_FMINF_BUILTIN 1
+#else
+# define USE_FMIN_BUILTIN 0
+# define USE_FMINF_BUILTIN 0
+#endif
+
+#define USE_FMINL_BUILTIN 0
+#define USE_FMINF128_BUILTIN 0
-- 
2.37.0




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