[PATCH] libgcc/config/arm/fp16.c: Add missing prototypes

[Christophe Lyon]

This patch adds the missing prototypes for the fonctions defined in fp16.c, to avoid these warnings during the build:
/libgcc/config/arm/fp16.c:169:1: warning: no previous prototype for '__gnu_h2f_internal' [-Wmissing-prototypes]
/libgcc/config/arm/fp16.c:194:1: warning: no previous prototype for '__gnu_f2h_ieee' [-Wmissing-prototypes]
/libgcc/config/arm/fp16.c:200:1: warning: no previous prototype for '__gnu_h2f_ieee' [-Wmissing-prototypes]
/libgcc/config/arm/fp16.c:206:1: warning: no previous prototype for '__gnu_f2h_alternative' [-Wmissing-prototypes]
/libgcc/config/arm/fp16.c:212:1: warning: no previous prototype for '__gnu_h2f_alternative' [-Wmissing-prototypes]
/libgcc/config/arm/fp16.c:218:1: warning: no previous prototype for '__gnu_d2h_ieee' [-Wmissing-prototypes]
/libgcc/config/arm/fp16.c:224:1: warning: no previous prototype for '__gnu_d2h_alternative' [-Wmissing-prototypes]

2020-09-11  Torbjörn SVENSSON  <torbjorn.svensson@st.com>
	Christophe Lyon  <christophe.lyon@linaro.org>

	libgcc/
	* config/arm/fp16.c (__gnu_h2f_internal, __gnu_f2h_ieee)
	(__gnu_h2f_ieee, __gnu_f2h_alternative, __gnu_h2f_alternative)
	(__gnu_d2h_ieee, __gnu_d2h_alternative): Add missing prototypes.
---
 libgcc/config/arm/fp16.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/libgcc/config/arm/fp16.c b/libgcc/config/arm/fp16.c
index e8f7afb..3d1d8f4 100644
--- a/libgcc/config/arm/fp16.c
+++ b/libgcc/config/arm/fp16.c
@@ -52,6 +52,15 @@ binary64 =
   52     /* significand.  */
 };
 
+/* Function prototypes */
+unsigned int __gnu_h2f_internal(unsigned short a, int ieee);
+unsigned short __gnu_f2h_ieee(unsigned int a);
+unsigned int __gnu_h2f_ieee(unsigned short a);
+unsigned short __gnu_f2h_alternative(unsigned int x);
+unsigned int __gnu_h2f_alternative(unsigned short a);
+unsigned short __gnu_d2h_ieee (unsigned long long a);
+unsigned short __gnu_d2h_alternative (unsigned long long x);
+
 static inline unsigned short
 __gnu_float2h_internal (const struct format* fmt,
 			unsigned long long a, int ieee)
-- 
2.7.4