Instruction bundling on IA64 and the Intel Assembler

[Zack Weinberg]

kenner@vlsi1.ultra.nyu.edu (Richard Kenner) writes:

>     Always print "{.whatever" in the bundle_selector output template;
>     then, whenever bundling() goes to emit a bundle_selector, have it also
>     look three insns ahead and emit an "}" insn.  I think this will always
>     be right, not interfere with labels and directives, and shouldn't
>     require you to comprehend this problem function.
>
> It still requires *some* comprehension because it's not completely clear
> when those three insns are written out (consider nops).

NOPs have to be considered when determining bundle boundaries, so I think
that the naive three-insns-farther approach will be correct.  (Must
not count things which are not INSN/JUMP_INSN/CALL_INSN of course.)

> However, that still doesn't address part of Geert's comment

... because I have nothing to add to that part.

zw