[committed 09/12] d: Clarify comment for generating static array assignment with literal.

[Iain Buclaw via Gcc-patches]

The code block is done as an optimization to elide a call to the runtime
library helpers _d_arrayctor or _d_arrayassign.

gcc/d/ChangeLog:

        * expr.cc (ExprVisitor::visit (AssignExp *)): Clarify comment
          for generating static array assignment with literal.
---
 gcc/d/expr.cc | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/gcc/d/expr.cc b/gcc/d/expr.cc
index 85269c6b2be..76c1e613e77 100644
--- a/gcc/d/expr.cc
+++ b/gcc/d/expr.cc
@@ -1163,9 +1163,9 @@ public:
        bool destructor = needs_dtor (etype);
        bool lvalue = lvalue_p (e->e2);
 
-       /* Even if the elements in rhs are all rvalues and don't have
-          to call postblits, this assignment should call dtors on old
-          assigned elements.  */
+       /* Optimize static array assignment with array literal.  Even if the
+          elements in rhs are all rvalues and don't have to call postblits,
+          this assignment should call dtors on old assigned elements.  */
        if ((!postblit && !destructor)
            || (e->op == TOKconstruct && e->e2->op == TOKarrayliteral)
            || (e->op == TOKconstruct && !lvalue && postblit)
-- 
2.30.2