[7/9] LoongArch: Use __builtin_logb{,f} with GCC >= 13

Message ID 20221118112912.2501774-8-tangxiaolin@loongson.cn
State Committed
Commit 13c549f49705d10105b16706124077e07068a936
Headers
Series LoongArch: Use builtins with GCC >= 13 |

Commit Message

Xiaolin Tang Nov. 18, 2022, 11:29 a.m. UTC
  GCC 13 compiles these built-ins instead of generic
implementation for function logb.

Link: https://gcc.gnu.org/r13-3922
Co-Authored-By: Xi Ruoyao <xry111@xry111.site>
---
 sysdeps/loongarch/fpu/math-use-builtins-logb.h | 10 ++++++++++
 1 file changed, 10 insertions(+)
 create mode 100644 sysdeps/loongarch/fpu/math-use-builtins-logb.h
  

Patch

diff --git a/sysdeps/loongarch/fpu/math-use-builtins-logb.h b/sysdeps/loongarch/fpu/math-use-builtins-logb.h
new file mode 100644
index 0000000000..b1c3f30dc4
--- /dev/null
+++ b/sysdeps/loongarch/fpu/math-use-builtins-logb.h
@@ -0,0 +1,10 @@ 
+#if __GNUC_PREREQ (13, 0)
+# define USE_LOGB_BUILTIN 1
+# define USE_LOGBF_BUILTIN 1
+#else
+# define USE_LOGB_BUILTIN 0
+# define USE_LOGBF_BUILTIN 0
+#endif
+
+#define USE_LOGBL_BUILTIN 0
+#define USE_LOGBF128_BUILTIN 0