rt_gccstream/gcc/testsuite/gcc.dg/nrv2.c

26 lines
411 B
C

/* Test that the tree_nrv pass works by making sure that we don't generate
a memcpy. Throw in a bit of control flow to make its job a bit harder. */
/* { dg-options "-O" } */
struct A { int i[100]; };
int b;
struct A f ()
{
struct A a;
if (b)
{
a.i[0] = 42;
return a;
}
else
{
a.i[42] = 1;
return a;
}
}
/* { dg-final { scan-assembler-not "memcpy" } } */