1 /* Test for reload failing to eliminate from argp to sp. */
2 /* { dg-do run { target i?86-*-* } } */
3 /* { dg-skip-if "" { i?86-*-* } { "-m64" "-fpic" "-fPIC" } { "" } } */
4 /* { dg-options "-O2 -fomit-frame-pointer" } */
6 static int ustrsize (const char *s);
7 static int (*ucwidth) (int c);
8 static int (*ugetxc) (const char **s);
9 static int (*usetc) (char *s, int c);
11 char *ustrzcat(char *dest, int size, const char *src)
13 int pos = ustrsize(dest);
16 size -= pos + ucwidth(0);
18 while ((c = ugetxc(&src)) != 0) {
23 pos += usetc(dest+pos, c);
31 static int __attribute__((noinline))
32 ustrsize (const char *s)
44 ugetxc_ (const char **s)
50 usetc_ (char *s, int c)
62 /* ??? It is impossible to explicitly modify the hard frame pointer.
63 This will run afoul of code in flow.c that declines to mark regs
64 in eliminate_regs in regs_ever_used. Apparently, we have to wait
65 for reload to decide that it won't need a frame pointer before a
66 variable can be allocated to %ebp.
68 So save, restore, and clobber %ebp by hand. */
70 asm ("pushl %%ebp\n\t"
78 : : "i"(ustrzcat) : "memory" );