[MethodImpl(MethodImplOptions.NoInlining)] // Only called once per thread, no point in inlining.
private static unsafe byte *GetSufficientStackLimit()
{
IntPtr lower, upper;
RuntimeImports.RhGetCurrentThreadStackBounds(out lower, out upper);
// Compute the limit used by EnsureSufficientExecutionStack and cache it on the thread. This minimum
// stack size should be sufficient to allow a typical non-recursive call chain to execute, including
// potential exception handling and garbage collection.
#if BIT64
const int MinExecutionStackSize = 128 * 1024;
#else
const int MinExecutionStackSize = 64 * 1024;
#endif
byte *limit = (((byte *)upper - (byte *)lower > MinExecutionStackSize)) ?
((byte *)lower + MinExecutionStackSize) : ((byte *)upper);
return(t_sufficientStackLimit = limit);
}