1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
|
/* PR 5878.
We ICEd in verify_local_live_at_start because we incorrectly forced
the PIC register live between BAR and BAZ. We did this because the
definition of PIC_OFFSET_TABLE_REGNUM was incorrectly not INVALID_REGNUM
when !flag_pic for most targets. */
/* { dg-do run } */
/* { dg-options "-O -fno-pic" } */
/* { dg-require-effective-target nonlocal_goto } */
extern void abort (void);
#if defined(__alpha__)
/* PIC register is $29, but is used even without -fpic. */
#elif defined(__arc__)
# define PIC_REG "26"
#elif defined(__arm__)
# define PIC_REG "9"
#elif defined(AVR)
/* No pic register. */
#elif defined(__cris__)
# define PIC_REG "0"
#elif defined(__epiphany__)
#define PIC_REG "r28"
#elif defined(__fr30__)
/* No pic register. */
#elif defined(__H8300__) || defined(__H8300H__) || defined(__H8300S__)
/* No pic register. */
#elif defined(_IBMR2)
/* No pic register. */
#elif defined(__i386__)
# define PIC_REG "ebx"
#elif defined(__ia64__)
/* PIC register is r1, but is used even without -fpic. */
#elif defined(__lm32__)
/* No pic register. */
#elif defined(__M32R__)
/* No pic register. */
#elif defined(__m68k__)
# define PIC_REG "a5"
#elif defined(__mc68hc1x__)
/* No pic register. */
#elif defined(__mcore__)
/* No pic register. */
#elif defined(__MICROBLAZE__)
# define PIC_REG "r20"
#elif defined(__mips__)
/* PIC register is $28, but is used even without -fpic. */
#elif defined(__MMIX__)
/* No pic register. */
#elif defined(__mn10300__)
/* No pic register. */
#elif defined(__moxie__)
/* No pic register. */
#elif defined(__nds32__)
/* No pic register. */
#elif defined(__nios2__)
/* No pic register. */
#elif defined(__hppa__)
/* PIC register is %r27 or %r19, but is used even without -fpic. */
#elif defined(__pdp11__)
/* No pic register. */
#elif defined(__powerpc__) || defined(__PPC__) || defined(__POWERPC__) || defined (__ppc)
# ifdef __MACH__
# define PIC_REG "31"
# else
# define PIC_REG "30"
# endif
#elif defined(__riscv)
/* No pic register. */
#elif defined(__RX__)
/* No pic register. */
#elif defined(__s390__)
# define PIC_REG "12"
#elif defined(__sparc__)
# define PIC_REG "l7"
#elif defined(__tile__)
# define PIC_REG "r51"
#elif defined(__TMS320C6X__)
# define PIC_REG "B14"
#elif defined(__v850)
/* No pic register. */
#elif defined(__vax__)
/* No pic register. */
#elif defined(__VISIUM__)
/* No pic register. */
#elif defined(__xstormy16__)
/* No pic register. */
#elif defined(__XTENSA__)
/* No pic register. */
#elif defined(__sh__)
# define PIC_REG "r12"
#elif defined(__x86_64__)
/* No pic register. */
#elif defined(__m32c__)
/* No pic register. */
#elif defined(__SPU__)
# define PIC_REG "126"
#elif defined (__frv__)
# ifdef __FRV_FDPIC__
# define PIC_REG "gr15"
# else
# define PIC_REG "gr17"
#endif
#elif defined (__aarch64__)
/* No pic register -- yet. */
#elif defined(__RL78__)
/* No pic register. */
#elif defined(__MSP430__)
/* No pic register. */
#elif defined (__nvptx__)
/* No pic register. */
#else
# error "Modify the test for your target."
#endif
#if defined PIC_REG && !defined __PIC__ && !defined __pic__
register void *reg __asm__(PIC_REG);
#else
/* We really need a global register variable set to the PIC register
to expose the bug. Oh well, let the test case not fail. */
static void *reg;
#endif
void * __attribute__((noinline))
dummy (void *x)
{
return x;
}
void
f (void)
{
goto *dummy (&&bar);
for (;;)
{
foo:
reg = (void *) 1;
if (!reg)
goto baz;
reg = &&foo;
}
bar:
baz:
reg = 0;
}
int
main()
{
void *old_reg = reg;
reg = (void *) 1;
f ();
/* Additionally test that the prologue/epilogue properly does *not*
save and restore global registers. Not possible when the PIC
register is in a register window, of course. On Darwin, you can't
call library routines from non-PIC code. */
#if !defined (__sparc__) && !defined(__MACH__)
if (reg)
abort ();
#endif
reg = old_reg;
return 0;
}
|
