Adding missing math functions for mac osx compatiblity.

[git-p4: depot-paths = "//depot/gpgpu_sim_research/fermi/distribution/": change = 13558]

1 files changed, 14 insertions, 0 deletions

diff --git a/src/cuda-sim/cuda-math.h b/src/cuda-sim/cuda-math.h
index e9f2895..b4502a1 100644
--- a/src/cuda-sim/cuda-math.h
+++ b/src/cuda-sim/cuda-math.h
@@ -334,6 +334,20 @@ float __powf(float a, float b)
    return powf(a, b);
 }
 
+// math functions missing in Mac OSX GCC
+#ifdef __APPLE__
+int isnanf(float a) 
+{
+   return (isnan(a)); 
+}
+
+int __signbitd(double d)
+{
+   unsigned long long int u = *((unsigned long long int*)&d); 
+   return ((u & 0x8000000000000000ULL) != 0);
+}
+#endif 
+
 #undef __CUDACC__
 #define __CUDA_INTERNAL_COMPILATION__
 #include <math_functions.h>