blob: f75469d8ef843faa78a4b0b3e2c2eb256a0ffa12 (
plain)
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
|
/* { dg-do compile } */
/* { dg-options "-fgimple -O -Wmaybe-uninitialized" } */
unsigned int __GIMPLE (ssa,startwith("uninit1"))
foo (unsigned int v)
{
unsigned int undef; /* { dg-bogus "may be used uninitialized" } */
unsigned int _2;
unsigned int _9;
unsigned int _10;
__BB(2):
if (v_4(D) != 100u)
goto __BB3;
else
goto __BB4;
__BB(3):
undef_8 = 8u; // 'undef' is defined conditionally (under 'v != 100' predicate)
goto __BB4;
__BB(4):
// An undef value flows into a phi.
undef_1 = __PHI (__BB2: undef_5(D), __BB3: undef_8);
if (v_4(D) < 100u)
goto __BB5;
else
goto __BB6;
__BB(5):
_9 = undef_1; // The phi value is used here (under 'v < 100' predicate).
goto __BB7;
__BB(6):
_10 = v_4(D);
goto __BB7;
__BB(7):
_2 = __PHI (__BB5: _9, __BB6: _10);
return _2;
}
|
