1 /* { dg-do compile } */ 2 /* { dg-require-effective-target arm_thumb2_ok } */ 3 /* { dg-options "-mthumb -Os" } */ 4 /* { dg-final { scan-assembler "push\t.*r8" } } */ 5 /* { dg-final { scan-assembler-not "push\t*r3" } } */ 6 7 extern int hist_verify; 8 extern char *pre_process_line (char*); 9 extern char* savestring1 (char*, char*, int, int); 10 extern char* str_cpy (char*, char*); 11 extern int str_len (char*); 12 extern char* x_malloc (int); 13 #define savestring(x) (char *)str_cpy (x_malloc (1 + str_len (x)), (x)) 14 15 char * history_expand_line_internal(char * line)16history_expand_line_internal (char* line) 17 { 18 char *new_line; 19 int old_verify; 20 21 old_verify = hist_verify; 22 hist_verify = 0; 23 new_line = pre_process_line (line); 24 hist_verify = old_verify; 25 /* Two tail calls here, but r3 is used to pass values. */ 26 return (new_line == line) ? savestring (line) : 27 savestring1 (new_line, line, 0, old_verify+1); 28 } 29