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authorPaolo Carlini <paolo.carlini@oracle.com>2012-11-24 23:45:45 +0000
committerPaolo Carlini <paolo@gcc.gnu.org>2012-11-24 23:45:45 +0000
commitddffee6824dc069e4a18f572c06ccf5313e41377 (patch)
tree71423d373addab18e0cac37a688d8accf1aa4145
parent40ff695f5cb23ff4313d5a22c5e97f971e4bd65b (diff)
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re PR c++/55446 (array new with size zero vanishes from object code)
/cp 2012-11-24 Paolo Carlini <paolo.carlini@oracle.com> PR c++/55446 * init.c (build_vec_init): Do not early return error_mark_mode when integer_all_onesp (maxindex). /testsuite 2012-11-24 Paolo Carlini <paolo.carlini@oracle.com> PR c++/55446 * g++.dg/init/new41.C: New. From-SVN: r193785
-rw-r--r--gcc/cp/ChangeLog6
-rw-r--r--gcc/cp/init.c3
-rw-r--r--gcc/testsuite/ChangeLog5
-rw-r--r--gcc/testsuite/g++.dg/init/new41.C22
4 files changed, 34 insertions, 2 deletions
diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog
index 95fb0bf..edb45f4 100644
--- a/gcc/cp/ChangeLog
+++ b/gcc/cp/ChangeLog
@@ -1,3 +1,9 @@
+2012-11-24 Paolo Carlini <paolo.carlini@oracle.com>
+
+ PR c++/55446
+ * init.c (build_vec_init): Do not early return error_mark_mode
+ when integer_all_onesp (maxindex).
+
2012-11-23 Jakub Jelinek <jakub@redhat.com>
PR c++/54046
diff --git a/gcc/cp/init.c b/gcc/cp/init.c
index fea50b5..76a31c1b 100644
--- a/gcc/cp/init.c
+++ b/gcc/cp/init.c
@@ -3283,8 +3283,7 @@ build_vec_init (tree base, tree maxindex, tree init,
if (TREE_CODE (atype) == ARRAY_TYPE && TYPE_DOMAIN (atype))
maxindex = array_type_nelts (atype);
- if (maxindex == NULL_TREE || maxindex == error_mark_node
- || integer_all_onesp (maxindex))
+ if (maxindex == NULL_TREE || maxindex == error_mark_node)
return error_mark_node;
if (explicit_value_init_p)
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index f962907..eb23b00 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2012-11-24 Paolo Carlini <paolo.carlini@oracle.com>
+
+ PR c++/55446
+ * g++.dg/init/new41.C: New.
+
2012-11-24 Thomas Koenig <tkoenig@gcc.gnu.org>
PR fortran/55314
diff --git a/gcc/testsuite/g++.dg/init/new41.C b/gcc/testsuite/g++.dg/init/new41.C
new file mode 100644
index 0000000..0559b1d
--- /dev/null
+++ b/gcc/testsuite/g++.dg/init/new41.C
@@ -0,0 +1,22 @@
+// PR c++/55446
+// { dg-do run }
+
+struct S
+{
+ S() { }
+};
+
+int n = 1;
+
+void* operator new[](__SIZE_TYPE__)
+{
+ n = -1;
+ return &n;
+}
+
+int main()
+{
+ new S[0];
+ if (n != -1)
+ __builtin_abort();
+}