rt_gccstream/gcc/testsuite/gcc.dg/tree-ssa/asm-1.c

18 lines
428 B
C

/* Make sure that gcc understands that an in/out operand is a use as well
as a def. */
/* { dg-do compile } */
/* { dg-options "-O -fdump-tree-optimized" } */
void f()
{
int i = 42;
int j = 63;
asm ("": "=m"(i), "+r"(j) : "m"(i));
}
/* { dg-final { scan-tree-dump-times "42" 1 "optimized" } } */
/* { dg-final { scan-tree-dump-times "63" 1 "optimized" } } */
/* { dg-final { cleanup-tree-dump "optimized" } } */