blob: 3def90c4c7c894d5fb87fbed9ac091da38b9f41b (
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
|
/* Skip on MIPS, where LOGICAL_OP_NON_SHORT_CIRCUIT inhibits the setcc
optimizations that expose the VRP opportunity. */
/* Skip on S/390 and avr. Lower values in BRANCH_COST lead to two conditional
jumps when evaluating an && condition. VRP is not able to optimize
this. */
/* { dg-do compile { target { ! "mips*-*-* s390*-*-* avr-*-* mn10300-*-*" } } } */
/* { dg-options "-O2 -fdump-tree-vrp -fdump-tree-dom" } */
/* { dg-options "-O2 -fdump-tree-vrp -fdump-tree-dom -march=i586" { target { i?86-*-* && ilp32 } } } */
int h(int x, int y)
{
if ((x >= 0 && x <= 1) && (y >= 0 && y <= 1))
return x && y;
else
return -1;
}
int g(int x, int y)
{
if ((x >= 0 && x <= 1) && (y >= 0 && y <= 1))
return x || y;
else
return -1;
}
int f(int x)
{
if (x != 0 && x != 1)
return -2;
else
return !x;
}
/* Test that x and y are never compared to 0 -- they're always known to be
0 or 1. */
/* { dg-final { scan-tree-dump-times "\[xy\]\[^ \]* !=" 0 "vrp1" } } */
/* This one needs more copy propagation that only happens in dom1. */
/* { dg-final { scan-tree-dump-times "x\[^ \]* & y" 1 "dom1" } } */
/* { dg-final { scan-tree-dump-times "x\[^ \]* & y" 1 "vrp1" { xfail *-*-* } } } */
/* These two are fully simplified by VRP. */
/* { dg-final { scan-tree-dump-times "x\[^ \]* \[|\] y" 1 "vrp1" } } */
/* { dg-final { scan-tree-dump-times "x\[^ \]* \\^ 1" 1 "vrp1" } } */
/* { dg-final { cleanup-tree-dump "vrp\[0-9\]" } } */
/* { dg-final { cleanup-tree-dump "dom\[0-9\]" } } */
|
