gcc/testsuite/g++.dg/tree-ssa/ldist-1.C

   1 /* { dg-do compile } */
   2 /* { dg-options "-O3 -fdump-tree-ldist-details" } */
   3
   4 #include <new>
   5 struct T {
   6     int* p;
   7     T(T const&t):p(t.p){}
   8 };
   9 void f(T*__restrict a,T*__restrict b){
  10     for(int i=0;i<1024;++i){
  11         new(a+i)T(b[i]);
  12         b[i].~T();
  13     }
  14 }
  15
  16 /* { dg-final { scan-tree-dump "generated memcpy" "ldist" } } */