mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-11-12 15:05:06 +00:00
3edacfa970
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192678 91177308-0d34-0410-b5e6-96231b3b80d8
38 lines
1.5 KiB
TableGen
38 lines
1.5 KiB
TableGen
//==- MSP430CallingConv.td - Calling Conventions for MSP430 -*- 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 MSP430 architecture.
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// MSP430 Return Value Calling Convention
|
|
//===----------------------------------------------------------------------===//
|
|
def RetCC_MSP430 : CallingConv<[
|
|
// i8 are returned in registers R15B, R14B, R13B, R12B
|
|
CCIfType<[i8], CCAssignToReg<[R15B, R14B, R13B, R12B]>>,
|
|
|
|
// i16 are returned in registers R15, R14, R13, R12
|
|
CCIfType<[i16], CCAssignToReg<[R15W, R14W, R13W, R12W]>>
|
|
]>;
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// 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>>
|
|
]>;
|
|
|