Re: combine two load insns

[Ian Lance Taylor <iant at google dot com>]

Paul Koning <paul_koning@Dell.com> writes:

> This probably has been discussed at length in the past, but as a
> relative newcomer I'll make this observation...  I wonder how much is
> lost by GCC's insistence that multi-register values must be in
> adjacent registers.  Obviously that's hard to change (the registers
> would have to be explicitly listed instead of implied by the first
> register number).  And in some cases it is actually required.  But in
> many cases, it's not (in some machines, never).  And I would think
> that register allocation could benefit from not having such a
> restriction.  The item in question here is just one example.

You may want to look at the lower-subreg pass.

Ian