1 files changed, 40 insertions, 0 deletions
diff --git a/compat/fpu.hpp b/compat/fpu.hpp
new file mode 100644
index 00000000..1b3776f9
--- /dev/null
+++ b/compat/fpu.hpp
@@ -0,0 +1,40 @@
+#pragma once
+#include "arch.hpp"
+
+#ifdef __MINGW32__
+extern "C" __declspec(dllimport) unsigned __cdecl _controlfp(unsigned, unsigned);
+#endif
+
+static inline void set_fp_mask()
+{
+#if defined FLOORMAT_ARCH_DENORM_DAZ
+    _MM_SET_DENORMALS_ZERO_MODE(_MM_DENORMALS_ZERO_ON);
+#elif defined FLOORMAT_ARCH_DENORM_FTZ
+    _MM_SET_FLUSH_ZERO_MODE(_MM_FLUSH_ZERO_ON);
+#endif
+
+#ifdef FLOORMAT_ARCH_FPU_MASK
+    _MM_SET_EXCEPTION_MASK(_MM_MASK_MASK);
+#endif
+
+#ifdef __APPLE__
+    fesetenv(FE_DFL_DISABLE_SSE_DENORMS_ENV);
+#endif
+
+#ifdef _WIN32
+#   ifdef __clang__
+#       pragma clang diagnostic push
+#       pragma clang diagnostic ignored "-Wreserved-id-macro"
+#   endif
+#   ifndef _DN_FLUSH
+#       define _DN_FLUSH 0x01000000
+#   endif
+#   ifndef _MCW_DN
+#       define _MCW_DN 0x03000000
+#   endif
+#   ifdef __clang__
+#       pragma clang diagnostic pop
+#   endif
+    _controlfp(_DN_FLUSH, _MCW_DN);
+#endif
+}