[Bug target/112970] New: LoongArch: Suboptimal code when the address and the value of an array element are both used

[xry111 at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112970

            Bug ID: 112970
           Summary: LoongArch: Suboptimal code when the address and the
                    value of an array element are both used
           Product: gcc
           Version: 14.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: xry111 at gcc dot gnu.org
  Target Milestone: ---

int d[2];
struct r { int *p, v; };
struct r test() { return (struct r){&d[1], d[1]}; }

is compiled to:

        la.local        $r12,.LANCHOR0
        ld.wu   $r5,$r12,4
        la.local        $r4,.LANCHOR0+4

But it's better to be:

        la.local        $r4,.LANCHOR0+4
        ld.wu   $r5,$r4,0