mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-09-05 01:30:18 +00:00
e0aef2de81
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133172 91177308-0d34-0410-b5e6-96231b3b80d8
37 lines
1.5 KiB
TableGen
37 lines
1.5 KiB
TableGen
//===--- PTXCallingConv.td - Calling Conventions -----------*- 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 the PTX architecture.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
// Currently, we reserve one register of each type for return values and let
|
|
// the rest be used for parameters. This is a dirty hack, but I am not sure
|
|
// how to tell LLVM that registers used for parameter passing cannot be used
|
|
// for return values.
|
|
|
|
// PTX Calling Conventions
|
|
def CC_PTX : CallingConv<[
|
|
CCIfType<[i1], CCAssignToReg<[P1, P2, P3, P4, P5, P6, P7]>>,
|
|
CCIfType<[i16], CCAssignToReg<[RH1, RH2, RH3, RH4, RH5, RH6, RH7]>>,
|
|
CCIfType<[i32, f32], CCAssignToReg<[R1, R2, R3, R4, R5, R6, R7]>>,
|
|
CCIfType<[i64, f64], CCAssignToReg<[RD1, RD2, RD3, RD4, RD5, RD6, RD7]>>
|
|
]>;
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// Return Value Calling Conventions
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
def RetCC_PTX : CallingConv<[
|
|
CCIfType<[i1], CCAssignToReg<[P0]>>,
|
|
CCIfType<[i16], CCAssignToReg<[RH0]>>,
|
|
CCIfType<[i32, f32], CCAssignToReg<[R0]>>,
|
|
CCIfType<[i64, f64], CCAssignToReg<[RD0]>>
|
|
]>;
|