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llvm-mirror/lib/Target/MSP430/MSP430CallingConv.td
Chandler Carruth ae65e281f3 Update the file headers across all of the LLVM projects in the monorepo
to reflect the new license.

We understand that people may be surprised that we're moving the header
entirely to discuss the new license. We checked this carefully with the
Foundation's lawyer and we believe this is the correct approach.

Essentially, all code in the project is now made available by the LLVM
project under our new license, so you will see that the license headers
include that license only. Some of our contributors have contributed
code under our old license, and accordingly, we have retained a copy of
our old license notice in the top-level files in each project and
repository.

llvm-svn: 351636
2019-01-19 08:50:56 +00:00

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1.5 KiB
TableGen

//==- MSP430CallingConv.td - Calling Conventions for MSP430 -*- tablegen -*-==//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
// This describes the calling conventions for MSP430 architecture.
//===----------------------------------------------------------------------===//
//===----------------------------------------------------------------------===//
// MSP430 Return Value Calling Convention
//===----------------------------------------------------------------------===//
def RetCC_MSP430 : CallingConv<[
// i8 are returned in registers R12B, R13B, R14B, R15B
CCIfType<[i8], CCAssignToReg<[R12B, R13B, R14B, R15B]>>,
// i16 are returned in registers R12, R13, R14, R15
CCIfType<[i16], CCAssignToReg<[R12, R13, R14, R15]>>
]>;
//===----------------------------------------------------------------------===//
// MSP430 Argument Calling Conventions
//===----------------------------------------------------------------------===//
def CC_MSP430_AssignStack : CallingConv<[
// Pass by value if the byval attribute is given
CCIfByVal<CCPassByVal<2, 2>>,
// Promote i8 arguments to i16.
CCIfType<[i8], CCPromoteToType<i16>>,
// Integer values get stored in stack slots that are 2 bytes in
// size and 2-byte aligned.
CCIfType<[i16], CCAssignToStack<2, 2>>
]>;