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GLSL ISA output overwritten with V_NOP since Crimson update

Question asked by lukef on Nov 30, 2015
Latest reply on Dec 14, 2015 by amitbm

It seems that the new Crimson driver has introduced an issue with CodeXL (versions 1.8 and 1.9 tested, both on Windows) - when GLSL code contains a call to texture() or similar, several lines of the ISA code are overwritten with V_NOP.



You can test the issue with any short shader that contains a texture() call - the only output will be lots of V_NOP. With longer shaders that have a lot of non-texture commands, only the first chunk of instructions are overwritten.


I noticed in the CodeXL 1.9 changelog that a fix for an issue that sounds exactly like this was made for Ubuntu. I think the same fix is needed on Windows.