12116Sjkh/* Ensure that we don't use 'repnz scasb' in the presence of register globals. */ 22116Sjkh/* { dg-do compile } */ 32116Sjkh/* { dg-options "-O1 -w" } */ 42116Sjkh 52116Sjkhextern __SIZE_TYPE__ strlen (const char *); 62116Sjkhextern void *malloc (__SIZE_TYPE__); 72116Sjkh 82116Sjkhregister int regvar asm("%edi"); 92116Sjkh 102116Sjkhchar * 118870Srgrimesdo_copy (char *str) 122116Sjkh{ 132116Sjkh return malloc (strlen (str) + 1); 142116Sjkh} 152116Sjkh 162116Sjkh/* { dg-final { scan-assembler-not "repnz scasb" } } */ 178870Srgrimes