From: Iain Buclaw <ibuclaw@gdcproject.org>
Date: Mon, 26 Jul 2021 17:22:48 +0000 (+0200)
Subject: d: Clarify comment for generating static array assignment with literal.
X-Git-Tag: basepoints/gcc-13~5693
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=c18db639a31b9d651b3b997fee331106b25789ef;p=thirdparty%2Fgcc.git

d: Clarify comment for generating static array assignment with literal.

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.
---

diff --git a/gcc/d/expr.cc b/gcc/d/expr.cc
index 85269c6b2bec..76c1e613e77f 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)