[PATCH] Fix ICE on invalid inline asm with "X" constraint and non-zero CONST_VECTOR (PR inline-asm/84625)

[Jakub Jelinek]

On Fri, Mar 02, 2018 at 08:19:40AM +0100, Uros Bizjak wrote:
> On Fri, Mar 2, 2018 at 8:16 AM, Uros Bizjak <ubizjak@gmail.com> wrote:
> > On Fri, Mar 2, 2018 at 12:10 AM, Jakub Jelinek <jakub@redhat.com> wrote:
> >> Hi!
> >>
> >> Assertions are only useful when inline asm is not involved, otherwise users
> >> can write anything they want.
> 
> IIRC, we can also handle { -1, -1, ... , -1 } in certain cases, but I
> don't think it is worth to complicate here.

We can handle that as whole instruction special-casing all ones
CONST_VECTOR, sure, but as an operand in inline-asm?

Even the { 0, 0, ... , 0 } case is weird, we print it just as 0, dunno
where exactly it would make sense, but we were doing that in the past
already.

	Jakub