From: Jakub Jelinek <jakub@redhat.com>
Date: Fri, 14 Jan 2005 23:51:38 +0000 (+0100)
Subject: re PR c++/19263 (wrong-code: explicit initialization of v8qi miscompiled)
X-Git-Tag: releases/gcc-3.4.4~312
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=56521b1856a55d3755257c9396a75c97c84c0ae1;p=thirdparty%2Fgcc.git

re PR c++/19263 (wrong-code: explicit initialization of v8qi miscompiled)

	PR c++/19263
	* typeck2.c (split_nonconstant_init_1) <case VECTOR_TYPE>: Put a copy
	of CONSTRUCTOR's node into MODIFY_EXPR, as the original is modified.
	Store code to *pcode.

	* g++.dg/init/vector1.C: New test.

From-SVN: r93674
---

diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog
index 0d0051ea2db2..e31e6db6f9b7 100644
--- a/gcc/cp/ChangeLog
+++ b/gcc/cp/ChangeLog
@@ -1,3 +1,10 @@
+2005-01-15  Jakub Jelinek  <jakub@redhat.com>
+
+	PR c++/19263
+	* typeck2.c (split_nonconstant_init_1) <case VECTOR_TYPE>: Put a copy
+	of CONSTRUCTOR's node into MODIFY_EXPR, as the original is modified.
+	Store code to *pcode.
+
 2004-12-28  Jakub Jelinek  <jakub@redhat.com>
 
 	PR c++/18384, c++/18327
diff --git a/gcc/cp/typeck2.c b/gcc/cp/typeck2.c
index f11dbe19850d..780c3e7abe4d 100644
--- a/gcc/cp/typeck2.c
+++ b/gcc/cp/typeck2.c
@@ -348,9 +348,11 @@ split_nonconstant_init_1 (tree dest, tree init, tree *pcode)
     case VECTOR_TYPE:
       if (!initializer_constant_valid_p (init, type))
 	{
+	  tree cons = copy_node (init);
 	  CONSTRUCTOR_ELTS (init) = NULL;
-	  code = build (MODIFY_EXPR, type, dest, init);
+	  code = build (MODIFY_EXPR, type, dest, cons);
 	  code = build_stmt (EXPR_STMT, code);
+	  *pcode = code;
 	  pcode = &TREE_CHAIN (code);
 	}
       break;
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 382711907d34..82cf8659c0f8 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2005-01-15  Jakub Jelinek  <jakub@redhat.com>
+
+	PR c++/19263
+	* g++.dg/init/vector1.C: New test.
+
 2005-01-07  Jakub Jelinek  <jakub@redhat.com>
 
 	* gcc.c-torture/execute/20050107-1.c: New test.