blob: a8f7aac877373e29dc9a95275fe3aa7ae69d518a (
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
52
53
54
55
56
57
58
59
60
61
62
63
|
module GHC.CmmToAsm.PPC.Cond (
Cond(..),
condNegate,
condUnsigned,
condToSigned,
condToUnsigned,
)
where
import GHC.Prelude
import GHC.Utils.Panic
data Cond
= ALWAYS
| EQQ
| GE
| GEU
| GTT
| GU
| LE
| LEU
| LTT
| LU
| NE
deriving Eq
condNegate :: Cond -> Cond
condNegate ALWAYS = panic "condNegate: ALWAYS"
condNegate EQQ = NE
condNegate GE = LTT
condNegate GEU = LU
condNegate GTT = LE
condNegate GU = LEU
condNegate LE = GTT
condNegate LEU = GU
condNegate LTT = GE
condNegate LU = GEU
condNegate NE = EQQ
-- Condition utils
condUnsigned :: Cond -> Bool
condUnsigned GU = True
condUnsigned LU = True
condUnsigned GEU = True
condUnsigned LEU = True
condUnsigned _ = False
condToSigned :: Cond -> Cond
condToSigned GU = GTT
condToSigned LU = LTT
condToSigned GEU = GE
condToSigned LEU = LE
condToSigned x = x
condToUnsigned :: Cond -> Cond
condToUnsigned GTT = GU
condToUnsigned LTT = LU
condToUnsigned GE = GEU
condToUnsigned LE = LEU
condToUnsigned x = x
|
