blob: 87881fb18fc5213f25a17a83fccd95603a502df6 (
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
42
43
44
45
46
47
48
49
50
51
|
/* { dg-do compile } */
/* { dg-options "-mno-speculate-indirect-jumps" } */
/* { dg-warning "'-mno-speculate-indirect-jumps' is deprecated" "" { target *-*-* } 0 } */
/* Test for deliberate misprediction of jump tables. */
void bar (void);
int foo (int x)
{
int a;
switch (x)
{
default:
a = -1;
break;
case 0:
a = x * x;
break;
case 1:
a = x + 1;
break;
case 2:
a = x + x;
break;
case 3:
a = x << 3;
break;
case 4:
a = x >> 1;
break;
case 5:
a = x;
break;
case 6:
a = 0;
break;
case 7:
a = x * x + x;
break;
}
bar();
return a;
}
/* { dg-final { scan-assembler "crset" } } */
/* { dg-final { scan-assembler "beqctr-" } } */
/* { dg-final { scan-assembler {b \$} } } */
|
