https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91512
--- Comment #7 from Richard Biener <rguenth at gcc dot gnu.org> ---
(In reply to Sunil Pandey from comment #4)
> Actually it is spec cpu 2017 521.wrf benchmark getting this problem while
> compiling. Compilation taking forever, you can see while compiling file
> module_first_rk_step_part1.fppized.f90 as a representative.
Note this file contains a single function which (besides USEing quite a number
of modules...) has only function calls involving a lot of parameters
effectively forwarding parameters from the function. Thus
SUBROUTINE foo (psim, ..., ims, ime, jms, jme)
REAL ,DIMENSION(ims:ime,jms:jme), INTENT(INOUT) :: psim
call sub1 (PSIM=psim, ...)
call sub2 (PSIM=psim, ...)
END SUBROUTINE
with a _lot_ of arrays being passed through. A simple testcase like
SUBROUTINE sub1 (psim, ims, ime, jms, jme)
REAL ,DIMENSION(ims:ime,jms:jme), INTENT(INOUT) :: psim
END SUBROUTINE
SUBROUTINE foo (psim, ims, ime, jms, jme)
REAL ,DIMENSION(ims:ime,jms:jme), INTENT(INOUT) :: psim
call sub1 (psim, ims, ime, jms, jme)
END SUBROUTINE
doesn't show any extra loops generated though, so I'm not sure what to
look after.
