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annotate lib/Target/XCore/XCoreCallingConv.td @ 147:c2174574ed3a

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LLVM 10
author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Wed, 14 Aug 2019 16:55:33 +0900
parents 54457678186b
children
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1 //===- XCoreCallingConv.td - Calling Conventions for XCore -*- tablegen -*-===//
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2 //
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3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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4 // See https://llvm.org/LICENSE.txt for license information.
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5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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6 //
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7 //===----------------------------------------------------------------------===//
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8 // This describes the calling conventions for XCore architecture.
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9 //===----------------------------------------------------------------------===//
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11 //===----------------------------------------------------------------------===//
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12 // XCore Return Value Calling Convention
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13 //===----------------------------------------------------------------------===//
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14 def RetCC_XCore : CallingConv<[
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15 // i32 are returned in registers R0, R1, R2, R3
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16 CCIfType<[i32], CCAssignToReg<[R0, R1, R2, R3]>>,
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18 // Integer values get stored in stack slots that are 4 bytes in
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19 // size and 4-byte aligned.
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20 CCIfType<[i32], CCAssignToStack<4, 4>>
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21 ]>;
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23 //===----------------------------------------------------------------------===//
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24 // XCore Argument Calling Conventions
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25 //===----------------------------------------------------------------------===//
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26 def CC_XCore : CallingConv<[
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27 // Promote i8/i16 arguments to i32.
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28 CCIfType<[i8, i16], CCPromoteToType<i32>>,
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29
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30 // The 'nest' parameter, if any, is passed in R11.
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31 CCIfNest<CCAssignToReg<[R11]>>,
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32
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33 // The first 4 integer arguments are passed in integer registers.
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34 CCIfType<[i32], CCAssignToReg<[R0, R1, R2, R3]>>,
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35
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36 // Integer values get stored in stack slots that are 4 bytes in
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37 // size and 4-byte aligned.
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38 CCIfType<[i32], CCAssignToStack<4, 4>>
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39 ]>;