rt_gccstream/gcc/testsuite/gcc.target/i386/pr11001-memcpy-3.c

24 lines
482 B
C

/* Ensure that we don't use 'rep movX' in the presence of register globals. */
/* { dg-do compile } */
/* { dg-options "-Os -w" } */
extern void *memcpy (void *, const void *, __SIZE_TYPE__);
register int regvar asm("%ecx");
int foo[10];
int bar[10];
char baz[15];
char quux[15];
void
do_copy ()
{
memcpy (foo, bar, sizeof foo);
memcpy (baz, quux, sizeof baz);
}
/* { dg-final { scan-assembler-not "rep movsl" } } */
/* { dg-final { scan-assembler-not "rep movsb" } } */