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
|
//===- ARCCallingConv.td - Calling Conventions for ARC -----*- 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 ARC architecture.
//===----------------------------------------------------------------------===//
//===----------------------------------------------------------------------===//
// ARC Return Value Calling Convention
//===----------------------------------------------------------------------===//
def RetCC_ARC : CallingConv<[
// i32 are returned in registers R0, R1, R2, R3
CCIfType<[i32, i64], CCAssignToReg<[R0, R1, R2, R3]>>,
// Integer values get stored in stack slots that are 4 bytes in
// size and 4-byte aligned.
CCIfType<[i64], CCAssignToStack<8, 4>>,
CCIfType<[i32], CCAssignToStack<4, 4>>
]>;
//===----------------------------------------------------------------------===//
// ARC Argument Calling Conventions
//===----------------------------------------------------------------------===//
def CC_ARC : CallingConv<[
// Promote i8/i16 arguments to i32.
CCIfType<[i8, i16], CCPromoteToType<i32>>,
// The first 8 integer arguments are passed in integer registers.
CCIfType<[i32, i64], CCAssignToReg<[R0, R1, R2, R3, R4, R5, R6, R7]>>,
// Integer values get stored in stack slots that are 4 bytes in
// size and 4-byte aligned.
CCIfType<[i64], CCAssignToStack<8, 4>>,
CCIfType<[i32], CCAssignToStack<4, 4>>
]>;
def CSR_ARC : CalleeSavedRegs<(add (sequence "R%u", 13, 25), GP, FP)>;
|
