SparcCallingConv.td revision 875314bb529c9208e9e8dedec90f1e4a966442e9 
1//===- SparcCallingConv.td - Calling Conventions Sparc -----*- 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 Sparc architectures.
11//
12//===----------------------------------------------------------------------===//
13
14//===----------------------------------------------------------------------===//
15// Return Value Calling Conventions
16//===----------------------------------------------------------------------===//
17
18// Sparc 32-bit C return-value convention.
19def RetCC_Sparc32 : CallingConv<[
20  CCIfType<[i32], CCAssignToReg<[I0, I1, I2, I3, I4, I5]>>,
21  CCIfType<[f32], CCAssignToReg<[F0, F1, F2, F3]>>,
22  CCIfType<[f64], CCAssignToReg<[D0, D1]>>
23]>;
24
25// Sparc 32-bit C Calling convention.
26def CC_Sparc32 : CallingConv<[
27  // All arguments get passed in integer registers if there is space.
28  CCIfType<[i32, f32, f64], CCAssignToReg<[I0, I1, I2, I3, I4, I5]>>,
29  
30  // Alternatively, they are assigned to the stack in 4-byte aligned units.
31  CCAssignToStack<4, 4>
32]>;
33