improve i386 inline syscall asm on non-broken compilers

[musl] / src / internal / libm.h

diff --git a/src/internal/libm.h b/src/internal/libm.h
index 98bf5c6..b5bd26b 100644 (file)
--- a/src/internal/libm.h
+++ b/src/internal/libm.h
@@ -64,6 +64,13 @@ union ldshape {
 /* Support signaling NaNs.  */
 #define WANT_SNAN 0
 
+#if WANT_SNAN
+#error SNaN is unsupported
+#else
+#define issignalingf_inline(x) 0
+#define issignaling_inline(x) 0
+#endif
+
 #ifndef TOINT_INTRINSICS
 #define TOINT_INTRINSICS 0
 #endif
@@ -147,7 +154,8 @@ static inline long double fp_barrierl(long double x)
 #define fp_force_evalf fp_force_evalf
 static inline void fp_force_evalf(float x)
 {
-       volatile float y = x;
+       volatile float y;
+       y = x;
 }
 #endif
 
@@ -155,7 +163,8 @@ static inline void fp_force_evalf(float x)
 #define fp_force_eval fp_force_eval
 static inline void fp_force_eval(double x)
 {
-       volatile double y = x;
+       volatile double y;
+       y = x;
 }
 #endif
 
@@ -163,7 +172,8 @@ static inline void fp_force_eval(double x)
 #define fp_force_evall fp_force_evall
 static inline void fp_force_evall(long double x)
 {
-       volatile long double y = x;
+       volatile long double y;
+       y = x;
 }
 #endif