1 /* Test for reload failing to eliminate from argp to sp. */
2 /* { dg-do run { target i?86-*-* } } */
3 /* { dg-options "-O2 -fomit-frame-pointer" } */
5 static int ustrsize (const char *s
);
6 static int (*ucwidth
) (int c
);
7 static int (*ugetxc
) (const char **s
);
8 static int (*usetc
) (char *s
, int c
);
10 char *ustrzcat(char *dest
, int size
, const char *src
)
12 int pos
= ustrsize(dest
);
15 size
-= pos
+ ucwidth(0);
17 while ((c
= ugetxc(&src
)) != 0) {
22 pos
+= usetc(dest
+pos
, c
);
30 static int __attribute__((noinline
))
31 ustrsize (const char *s
)
43 ugetxc_ (const char **s
)
49 usetc_ (char *s
, int c
)
61 /* ??? It is impossible to explicitly modify the hard frame pointer.
62 This will run afoul of code in flow.c that declines to mark regs
63 in eliminate_regs in regs_ever_used. Apparently, we have to wait
64 for reload to decide that it won't need a frame pointer before a
65 variable can be allocated to %ebp.
67 So save, restore, and clobber %ebp by hand. */
69 asm ("pushl %%ebp\n\t"