On Wed, Nov 27, 2019 at 10:03:10AM +0100, Jakub Jelinek wrote:
> and it is just combine subst + simplification that turns it into
> ... (subreg:DI (subreg:V1DI (ne:DI (reg:CCZ 17 flags) (const_int 0 [0])) 0)
> 0) ...
> The restriction that subreg must be of a reg or mem certainly isn't honored
> i
On Tue, Nov 26, 2019 at 07:20:43PM -0600, Segher Boessenkool wrote:
> Hi!
>
> On Wed, Nov 27, 2019 at 12:51:35AM +0100, Jakub Jelinek wrote:
> > As mentioned in the PR, on the following testcase we ICE during combine.
> > We have (subreg:V1DI (ne:DI (reg:CC flags) (const_int 0)) 0) and
>
> A subr
Hi!
On Wed, Nov 27, 2019 at 12:51:35AM +0100, Jakub Jelinek wrote:
> As mentioned in the PR, on the following testcase we ICE during combine.
> We have (subreg:V1DI (ne:DI (reg:CC flags) (const_int 0)) 0) and
A subreg of something that is not a reg (or mem, if your port still does
that) is invali
Hi!
As mentioned in the PR, on the following testcase we ICE during combine.
We have (subreg:V1DI (ne:DI (reg:CC flags) (const_int 0)) 0) and
gen_lowpart_for_combine turns that into (ne:V1DI (reg:CC flags) (const_int 0))
which looks wrong to me, later on the if_then_else simplifications try to
sim
