GPU Math: Suppress compiler warnings about NaN in ffast-math

Author: davidrohr

GPU/Common/GPUCommonMath.h

@@ -99,7 +99,12 @@ class GPUCommonMath
   GPUhdi() static float Remainderf(float x, float y);
   GPUd() constexpr static bool Finite(float x);
   GPUd() constexpr static bool IsNaN(float x);
+#pragma GCC diagnostic push
+#if defined(__FAST_MATH__) && defined(__clang__)
+#pragma GCC diagnostic ignored "-Wnan-infinity-disabled"
+#endif
   GPUd() constexpr static float QuietNaN() { return GPUCA_CHOICE(std::numeric_limits<float>::quiet_NaN(), __builtin_nanf(""), nan(0u)); }
+#pragma GCC diagnostic pop
   GPUd() constexpr static uint32_t Clz(uint32_t val);
   GPUd() constexpr static uint32_t Popcount(uint32_t val);
 

GPU/GPUTracking/Definitions/GPULogging.h

@@ -28,7 +28,12 @@
   #define GPUFatal(...)
 #elif defined(GPUCA_STANDALONE) && !defined(GPUCA_GPUCODE_DEVICE) && !defined(GPUCA_NO_FMT)
   #include <cstdio>
+  #pragma GCC diagnostic push
+  #if defined(__FAST_MATH__) && defined(__clang__)
+  #pragma GCC diagnostic ignored "-Wnan-infinity-disabled"
+  #endif
   #include <fmt/printf.h>
+  #pragma GCC diagnostic pop
   #define GPUInfo(string, ...)                 \
     {                                          \
       fmt::printf(string "\n", ##__VA_ARGS__); \