From d204bee388d74a6895da15a1027a64a8c4ea4fbb Mon Sep 17 00:00:00 2001 From: Mikael Morin Date: Sun, 7 Jul 2024 11:00:51 +0200 Subject: [PATCH] fortran: Remove useless nested end of scalarization chain handling Remove the special handling of end of nested scalarization chains, which advanced the chain to an element of a parent chain when the current one was reaching its end. That handling was superfluous as nested chains correspond to nested scalarizations of subexpressions and the scalarizations don't extend beyond their associated subexpression and don't use any scalarisation element from the parent expression. No change of behaviour, as the GFC_SE struct is supposed to be in its final state anyway when the last element from the chain has been consumed. gcc/fortran/ChangeLog: * trans-expr.cc (gfc_advance_se_ss_chain): Don't use an element from the parent scalarization chain when the current chain reaches its end. --- gcc/fortran/trans-expr.cc | 11 +---------- 1 file changed, 1 insertion(+), 10 deletions(-) diff --git a/gcc/fortran/trans-expr.cc b/gcc/fortran/trans-expr.cc index f1dfac4a2be..07e28a9f7a8 100644 --- a/gcc/fortran/trans-expr.cc +++ b/gcc/fortran/trans-expr.cc @@ -2044,7 +2044,6 @@ void gfc_advance_se_ss_chain (gfc_se * se) { gfc_se *p; - gfc_ss *ss; gcc_assert (se != NULL && se->ss != NULL && se->ss != gfc_ss_terminator); @@ -2056,15 +2055,7 @@ gfc_advance_se_ss_chain (gfc_se * se) gcc_assert (p->parent == NULL || p->parent->ss == p->ss || p->parent->ss->nested_ss == p->ss); - /* If we were in a nested loop, the next scalarized expression can be - on the parent ss' next pointer. Thus we should not take the next - pointer blindly, but rather go up one nest level as long as next - is the end of chain. */ - ss = p->ss; - while (ss->next == gfc_ss_terminator && ss->parent != NULL) - ss = ss->parent; - - p->ss = ss->next; + p->ss = p->ss->next; p = p->parent; } -- 2.47.2