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
|
//=- TriCoreCallingConv.td - Calling Conventions for TriCore -*- tablegen -*-=//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// This describes the calling conventions for TriCore architecture.
//===----------------------------------------------------------------------===//
//===----------------------------------------------------------------------===//
// CCDelegate implemented form TriCore LLVM Thesis
//===----------------------------------------------------------------------===//
//def CC_TriCore_StackModel : CallingConv<[
//CCAssignToStack<4, 4>
//]>;
//===----------------------------------------------------------------------===//
// TriCore Return Value Calling Convention
//===----------------------------------------------------------------------===//
def RetCC_TriCore : CallingConv<[
// Promote i8/i16 arguments to i32.
CCIfType<[i8, i16], CCPromoteToType<i32>>,
// i32 are returned in registers D2
CCIfType<[i32], CCAssignToReg<[D2]>>,
// Integer values get stored in stack slots that are 4 bytes in
// size and 4-byte aligned.
CCIfType<[i32], CCAssignToStack<4, 4>>
]>;
//===----------------------------------------------------------------------===//
// TriCore Argument Calling Conventions
//===----------------------------------------------------------------------===//
def CC_TriCore : CallingConv<[
// Promote i8/i16 arguments to i32.
CCIfType<[i8, i16], CCPromoteToType<i32>>,
// The first 4 integer arguments are passed in integer registers.
// CCIfType<[i32], CCAssignToReg<[D4, D5, D6, D7]>>,
//CCIfType<[i32], CCAssignToReg<[A4, A5, A6, A7]>>,
// Pointer arguments are handled inside TriCoreIselLowering, because
// LLVM lowers i32** type into i32, hence there is no way to distingusish
// beetwen a pointer type and an integer type.
//CCDelegateTo<CC_TriCore_StackModel>
// Integer values get stored in stack slots that are 4 bytes in
// size and 4-byte aligned.
CCIfType<[i32], CCAssignToStack<4, 4>>
]>;
//def CC_Save : CalleeSavedRegs<(add R4, R5, R6, R7, R8, R9)>;
|
