https://bugs.freedesktop.org/show_bug.cgi?id=95085

--- Comment #17 from Marek Olšák maraeo@gmail.com --- FYI, the DX10_CLAMP shader bit flushes NaNs to 0. All other floating-point shader opcodes flush denorms to 0. 32-bit denorms can be enabled with a significant performance cost by setting conf->float_mode (see how it's done for FP64).