Hi, I'm working on a gcc backend, we need to use the information of the allocated hardware register to generate the code from builtin functions. But at the context in ix86_expand_builtin, where I could get the operands which the registers are pseudo registers (REGNO(op)>FIRST_PSEUDO_REGISTER).
Do you know where could I get the information of the hardware register and generate assemble code from there? Thanks, Feng
