On Tue, Jan 15, 2019 at 10:58:33PM +0100, Thomas Koenig wrote: > > the attached patch fixes a missed optimization where a substring equal > in length to the original variable currently leads to an unneeded > temporary. > > Regression-tested. OK for trunk?
Yes. See below. > > 2019-01-15 Thomas Koenig <tkoe...@gcc.gnu.org> > > PR fortran/43072 > * resolve.c (resolve_array_ref): Add equal_length argument; set it > if the length of the substring equals that of the orignal > variable. > (resolve_ref): Remove the substring if it is equal in length > length to the original variable, unless it is an EXPR_SUBSTRING). in length length? -- Steve
