Hello world, using the combined superpowers of Captain Obvious and Lieutenant Simple, I have committed the attached patch, which fixes a regression, as r266251, after regression-testing. I will backport to 8 and 7 in the next few days.
Regards Thomas 2018-11-18 Thomas Koenig <tkoe...@gcc.gnu.org> PR fortran/88073 * frontend-passes.c (combine_array_constructor): Do not do anything if in a WHERE statement. 2018-11-18 Thomas Koenig <tkoe...@gcc.gnu.org> PR fortran/88073 * gfortran.dg/where_7.f90: New test.
Index: frontend-passes.c =================================================================== --- frontend-passes.c (Revision 266250) +++ frontend-passes.c (Arbeitskopie) @@ -1773,6 +1773,10 @@ combine_array_constructor (gfc_expr *e) if (iterator_level > 0) return false; + /* WHERE also doesn't work. */ + if (in_where > 0) + return false; + op1 = e->value.op.op1; op2 = e->value.op.op2;
! { dg-do compile } ! { dg-options "-ffrontend-optimize" } ! PR fortran/88073 - this used to ICE with front-end optimization ! Original test case by 'mecej4' Subroutine tfu (n, x, f) Implicit None Integer, Parameter :: double = Kind (0.d0) Integer, Intent (In) :: n Real (double), Intent (Out) :: f Real (double), Intent (In) :: x (n) Integer :: j Logical, Dimension(n) :: l1v, l2v, l3v ! l3v = .False. l2v = .False. l1v = (/ (j, j=1, n) /) == 1 Where ( .Not. (l1v)) l2v = (/ (j, j=1, n) /) == n End Where Where ( .Not. l1v) l3v = .Not. l2v End Where f = sum (x(1:n), mask=l3v) Return end subroutine tfu