"James Miller" <[email protected]> wrote in message news:[email protected]... > Out of curiosity, what does -profile do that could cause this bug? > Seems like an odd cause, since in my specific case, I don't even get > an error, just crazy values, -2^31 to ~10^38, in later calculations > > -- > James Miller
IIRC the code that actually does -profile is in the backend, and is done with very low-level calls. Inserting calls can change the register usage patterns, interfere with cse elimination, etc. I assume this is what is happening, and with x64 and doubles that mean xmm codegen, which is still relatively new and buggy. Could you post the disassembly? (with intel syntax please) It might be possible to work around it by changing the calling convention of uniform and/or the functions it calls.
