mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-10-22 20:43:44 +02:00
7fc741759e
Add the ARC backend as an experimental target to lib/Target. Reviewed at: https://reviews.llvm.org/D36331 llvm-svn: 311667
42 lines
1.7 KiB
TableGen
42 lines
1.7 KiB
TableGen
//===- 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)>;
|