From 2e2485ce05bce85bf092ba0752854afa14b92dad Mon Sep 17 00:00:00 2001
From: Xiaolin Tang <tangxiaolin@loongson.cn>
Date: Wed, 23 Nov 2022 11:45:00 +0800
Subject: Use GCC builtins for logb functions if desired.

This patch is using the corresponding GCC builtin for logbf, logb,
logbl and logbf128 if the USE_FUNCTION_BUILTIN macros are defined to one
in math-use-builtins-function.h.

Co-Authored-By: Xi Ruoyao <xry111@xry111.site>
---
 sysdeps/generic/math-use-builtins-logb.h | 4 ++++
 sysdeps/generic/math-use-builtins.h      | 1 +
 2 files changed, 5 insertions(+)
 create mode 100644 sysdeps/generic/math-use-builtins-logb.h

(limited to 'sysdeps/generic')

diff --git a/sysdeps/generic/math-use-builtins-logb.h b/sysdeps/generic/math-use-builtins-logb.h
new file mode 100644
index 0000000000..e816a7e0a1
--- /dev/null
+++ b/sysdeps/generic/math-use-builtins-logb.h
@@ -0,0 +1,4 @@
+#define USE_LOGB_BUILTIN 0
+#define USE_LOGBF_BUILTIN 0
+#define USE_LOGBL_BUILTIN 0
+#define USE_LOGBF128_BUILTIN 0
diff --git a/sysdeps/generic/math-use-builtins.h b/sysdeps/generic/math-use-builtins.h
index dddeaa4ea8..c59612a878 100644
--- a/sysdeps/generic/math-use-builtins.h
+++ b/sysdeps/generic/math-use-builtins.h
@@ -39,5 +39,6 @@
 #include <math-use-builtins-fabs.h>
 #include <math-use-builtins-lrint.h>
 #include <math-use-builtins-llrint.h>
+#include <math-use-builtins-logb.h>
 
 #endif /* MATH_USE_BUILTINS_H  */
-- 
cgit 1.4.1