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authorupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
committerupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
commit554fd8c5195424bdbcabf5de30fdc183aba391bd (patch)
tree976dc5ab7fddf506dadce60ae936f43f58787092 /gcc/testsuite/g++.dg/opt/temp2.C
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Diffstat (limited to 'gcc/testsuite/g++.dg/opt/temp2.C')
-rw-r--r--gcc/testsuite/g++.dg/opt/temp2.C62
1 files changed, 62 insertions, 0 deletions
diff --git a/gcc/testsuite/g++.dg/opt/temp2.C b/gcc/testsuite/g++.dg/opt/temp2.C
new file mode 100644
index 000000000..35520a242
--- /dev/null
+++ b/gcc/testsuite/g++.dg/opt/temp2.C
@@ -0,0 +1,62 @@
+// { dg-do run }
+
+// Copyright (C) 2006 Free Software Foundation, Inc.
+
+// Originally from PR 16681, found also in init/array15.C
+// This variant of the testcase verifies that we do not create
+// a temporary on the stack, which is PR 27620.
+
+int i;
+
+extern "C"
+void *memcpy (void *dest, const void *src, __SIZE_TYPE__ n)
+{
+ char *d = (char *) dest;
+ const char *s = (const char *) src;
+ while (n--)
+ d[n] = s[n];
+ ++i;
+ return dest;
+}
+
+struct foo {
+ unsigned char buffer[41112];
+ foo() ;
+ bool check () const;
+};
+
+foo::foo ()
+ : buffer()
+{}
+
+bool foo::check () const
+{
+ for (unsigned ix = sizeof (buffer); ix--;)
+ if (buffer[ix])
+ return false;
+ return true;
+}
+
+void *operator new (__SIZE_TYPE__ size, void *p)
+{
+ return p;
+}
+
+char heap[50000];
+
+int main ()
+{
+ for (unsigned ix = sizeof (heap); ix--;)
+ heap[ix] = ix;
+
+ i = 0;
+ foo *f = new (heap) foo ();
+
+ if (i != 0)
+ return 1;
+ if (!f->check ())
+ return 1;
+ return 0;
+}
+
+