[Bug tree-optimization/85712] [8/9 Regression] ICE in all_phi_incrs_profitable_1 at gcc/gimple-ssa-strength-reduction.c:3479

[wschmidt at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85712

Bill Schmidt <wschmidt at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED

--- Comment #5 from Bill Schmidt <wschmidt at gcc dot gnu.org> ---
Whoops, forgot the PR line in the ChangeLog.  r260608 committed to trunk:

2018-05-23  Bill Schmidt  <wschm...@linux.ibm.com>

        PR tree-optimization/85712
        * gimple-ssa-strength-reduction.c (struct slsr_cand_d): Add
        first_interp field.
        (alloc_cand_and_find_basis): Initialize first_interp field.
        (slsr_process_mul): Modify first_interp field.
        (slsr_process_add): Likewise.
        (slsr_process_cast): Modify first_interp field for each new
        interpretation.
        (slsr_process_copy): Likewise.
        (dump_candidate): Dump first_interp field.
        (replace_mult_candidate): Process all interpretations, not just
        subsequent ones.
        (replace_rhs_if_not_dup): Likewise.
        (replace_one_candidate): Likewise.

Backports coming next week.  Thanks for the analysis, Richard!