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1 //===--- BlackfinCallingConv.td - Calling Conventions ------*- tablegen -*-===//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 //
10 // This describes the calling conventions for the Blackfin architectures.
11 //
12 //===----------------------------------------------------------------------===//
13
14 // Blackfin C Calling convention.
15 def CC_Blackfin : CallingConv<[
16   CCIfType<[i16], CCPromoteToType<i32>>,
17   CCIfSRet<CCAssignToReg<[P0]>>,
18   CCAssignToReg<[R0, R1, R2]>,
19   CCAssignToStack<4, 4>
20 ]>;
21
22 //===----------------------------------------------------------------------===//
23 // Return Value Calling Conventions
24 //===----------------------------------------------------------------------===//
25
26 // Blackfin C return-value convention.
27 def RetCC_Blackfin : CallingConv<[
28   CCIfType<[i16], CCPromoteToType<i32>>,
29   CCAssignToReg<[R0, R1]>
30 ]>;