Fix compilation error in ILP32.

gcc/testsuite/ChangeLog:
	* g++.dg/pr100574.C: Use size_t as operator new argument type.

gcc/testsuite/g++.dg/pr100574.C

@@ -0,0 +1,64 @@
+/* PR middle-end/100574 - ICE: in size_remaining, at builtins.c:413 with
+   -O3 -ftracer -fno-tree-dominator-opts -fno-tree-fre
+   { dg-do compile { target c++11 } }
+   { dg-options "-O3 -ftracer -fno-tree-dominator-opts -fno-tree-fre" } */
+
+void *operator new (__SIZE_TYPE__, void *__p) { return __p; }
+
+template <typename> struct allocator_traits;
+template <typename> class allocator {};
+template <typename _Tp> struct allocator_traits<allocator<_Tp> >
+{
+  using allocator_type = allocator<_Tp>;
+  using pointer = _Tp *;
+  using size_type = long;
+  template <typename _Up> using rebind_alloc = allocator<_Up>;
+  static pointer allocate(allocator_type, size_type);
+  template <typename _Up> static void construct(_Up __p) { new (__p) _Up(); }
+};
+
+struct __alloc_traits : allocator_traits<allocator<char>> {
+  struct rebind {
+    typedef rebind_alloc<char> other;
+  };
+};
+
+struct _Vector_base {
+  struct : __alloc_traits::rebind::other {
+  } _M_impl;
+  long _M_allocate___n;
+};
+
+template <typename, typename = char> class vector : _Vector_base {
+  long max_size();
+public:
+  void push_back() { _M_realloc_insert(); }
+  template <typename...> void _M_realloc_insert();
+};
+
+template <typename _Tp, typename _Alloc>
+template <typename...>
+void vector<_Tp, _Alloc>::_M_realloc_insert() {
+  __alloc_traits::pointer __trans_tmp_5;
+  long __len(__len || max_size()), __elems_before;
+  __trans_tmp_5 = _M_allocate___n
+    ? __alloc_traits::allocate(_M_impl, _M_allocate___n)
+    : __alloc_traits::pointer();
+  __alloc_traits::construct(__trans_tmp_5 + __elems_before);
+}
+
+enum { MIDIST_PITCHBEND };
+struct DataBlock {
+  vector<char> data;
+};
+
+char ReadTrackChunk_status;
+
+void ReadTrackChunk()
+{
+  DataBlock block;
+  while (!0)
+    switch (ReadTrackChunk_status)
+    case MIDIST_PITCHBEND:
+      block.data.push_back();
+}