search for: callimm

Hi, Is it possible to dynamically define implicit defs for some instructions? Concretely, I'd like to define a register for a return value of a call in a dynamic way, instead of using current static approach looking like: let Defs = [R0] in def CALLimm : I<...>; The reason for this wish is that some of the calling conventions on my target use different sets of physical registers for their return values. Therefore I cannot describe it by one static set of regs, as shown above. By looking into LLVM code, I've found how to force some ar...

> On Tue, 10 Oct 2006, Roman Levenstein wrote: > >>> such a call instruction? > >> > >> Why not just make the asm string be "call __fsub64"? > > > > Well, of course it would be the best solution. But the interesting > part > > is that I need to generate the machine code directly because for > > different reasons use of a system