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)16 history_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