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llvm-mirror/lib/Target/NVPTX/NVPTXInstrFormats.td
Justin Holewinski 4ca961430f This patch adds a new NVPTX back-end to LLVM which supports code generation for NVIDIA PTX 3.0. This back-end will (eventually) replace the current PTX back-end, while maintaining compatibility with it.
The new target machines are:

nvptx (old ptx32) => 32-bit PTX
nvptx64 (old ptx64) => 64-bit PTX

The sources are based on the internal NVIDIA NVPTX back-end, and
contain more functionality than the current PTX back-end currently
provides.

NV_CONTRIB

llvm-svn: 156196
2012-05-04 20:18:50 +00:00

44 lines
1.2 KiB
TableGen

//===- NVPTXInstrFormats.td - NVPTX Instruction Formats-------*- tblgen -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//===----------------------------------------------------------------------===//
// Describe NVPTX instructions format
//
//===----------------------------------------------------------------------===//
// Vector instruction type enum
class VecInstTypeEnum<bits<4> val> {
bits<4> Value=val;
}
def VecNOP : VecInstTypeEnum<0>;
// Generic NVPTX Format
class NVPTXInst<dag outs, dag ins, string asmstr, list<dag> pattern>
: Instruction {
field bits<14> Inst;
let Namespace = "NVPTX";
dag OutOperandList = outs;
dag InOperandList = ins;
let AsmString = asmstr;
let Pattern = pattern;
// TSFlagFields
bits<4> VecInstType = VecNOP.Value;
bit IsSimpleMove = 0;
bit IsLoad = 0;
bit IsStore = 0;
let TSFlags{3-0} = VecInstType;
let TSFlags{4-4} = IsSimpleMove;
let TSFlags{5-5} = IsLoad;
let TSFlags{6-6} = IsStore;
}