re PR c++/38705 (ICE: canonical types differ for identical types const int and const AlpsNodeIndex_t)

	PR c++/38705
	* builtins.c (fold_builtin_memory_op): Give up if either operand
	is volatile.  Set srctype or desttype to non-qualified version
	of the other type.

	* g++.dg/torture/pr38705.C: New test.

From-SVN: r143029

1 files changed, 27 insertions, 0 deletions

diff --git a/gcc/testsuite/g++.dg/torture/pr38705.C b/gcc/testsuite/g++.dg/torture/pr38705.C
new file mode 100644
index 0000000..8058d3a
--- /dev/null
+++ b/gcc/testsuite/g++.dg/torture/pr38705.C
@@ -0,0 +1,27 @@
+// PR c++/38705
+// { dg-do compile }
+
+typedef int T;
+typedef __SIZE_TYPE__ size_t;
+extern "C" void *memcpy (void *, const void *, size_t);
+
+void
+foo (char *p, const int q)
+{
+  memcpy (p, &q, sizeof (int));
+}
+
+struct S
+{
+  T t;
+  int u;
+  int bar () const;
+  template <class T> void foo (const T &x) const {}
+};
+
+int
+S::bar () const
+{
+  foo (u);
+  foo (t);
+}