Peter Maydell writes: > On 11 January 2016 at 20:16, Lluís Vilanova <vilan...@ac.upc.edu> wrote: >> Great! I implemented a similar thing long time ago. In my case the machinery >> is >> completely hidden under the concept of "value promises" in TCG (i.e., the >> user >> does not need to know about TCG internals like tcg_op_buf_count): >> >> // create promise >> TCGv_promise_i32 imm_p; >> TCGv_i32 imm = tcg_const_promise_i32(&imm_p); // akin to tcg_const_i32() >> ... >> // operate with promised immediate 'imm' >> ... >> // resolve promised value >> tcg_set_promise_i32(imm_p, resolved_value);
> I think this is definitely a nicer API if we're going to > have more than a very few uses -- gen_icount kind of gets > away with looking under the hood of the tcg data structures > because it's a sort of internal thing itself, but wider > use would definitely benefit from a more formal API. If this is not time-critical, I can prepare an updated patch by Friday, or let Edgar do it. Both are fine by me. Cheers, Lluis