mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-14 11:32:34 +00:00
972f5896e4
- Modifications from the last patch included (issues pointed by Evan Cheng are now fixed). - Added more MipsI instructions. - Added more patterns to match branch instructions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37461 91177308-0d34-0410-b5e6-96231b3b80d8
40 lines
1.6 KiB
C++
40 lines
1.6 KiB
C++
//===- MipsCallingConv.td - Calling Conventions for Mips --------*- C++ -*-===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file was developed by Bruno Cardoso Lopes and is distributed under the
|
|
// University of Illinois Open Source License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
// This describes the calling conventions for Mips architecture.
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
/// CCIfSubtarget - Match if the current subtarget has a feature F.
|
|
class CCIfSubtarget<string F, CCAction A>:
|
|
CCIf<!strconcat("State.getTarget().getSubtarget<MipsSubtarget>().", F), A>;
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// Mips Return Value Calling Convention
|
|
//===----------------------------------------------------------------------===//
|
|
def RetCC_Mips : CallingConv<[
|
|
// i32 are returned in registers V0, V1
|
|
CCIfType<[i32], CCAssignToReg<[V0, V1]>>
|
|
]>;
|
|
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// Mips Argument Calling Conventions
|
|
//===----------------------------------------------------------------------===//
|
|
def CC_Mips : CallingConv<[
|
|
// Promote i8/i16 arguments to i32.
|
|
CCIfType<[i8, i16], CCPromoteToType<i32>>,
|
|
|
|
// The first 4 integer arguments are passed in integer registers.
|
|
CCIfType<[i32], CCAssignToReg<[A0, A1, A2, A3]>>,
|
|
|
|
// Integer values get stored in stack slots that are 4 bytes in
|
|
// size and 4-byte aligned.
|
|
CCIfType<[i32], CCAssignToStack<4, 4>>
|
|
]>;
|
|
|