| //===- NVPTXSubtarget.cpp - NVPTX Subtarget Information -------------------===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This file implements the NVPTX specific subclass of TargetSubtarget. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "NVPTXSubtarget.h" |
| |
| using namespace llvm; |
| |
| #define DEBUG_TYPE "nvptx-subtarget" |
| |
| #define GET_SUBTARGETINFO_ENUM |
| #define GET_SUBTARGETINFO_TARGET_DESC |
| #define GET_SUBTARGETINFO_CTOR |
| #include "NVPTXGenSubtargetInfo.inc" |
| |
| // Pin the vtable to this file. |
| void NVPTXSubtarget::anchor() {} |
| |
| static std::string computeDataLayout(bool is64Bit) { |
| std::string Ret = "e"; |
| |
| if (!is64Bit) |
| Ret += "-p:32:32"; |
| |
| Ret += "-i64:64-v16:16-v32:32-n16:32:64"; |
| |
| return Ret; |
| } |
| |
| NVPTXSubtarget &NVPTXSubtarget::initializeSubtargetDependencies(StringRef CPU, |
| StringRef FS) { |
| // Provide the default CPU if we don't have one. |
| if (CPU.empty() && FS.size()) |
| llvm_unreachable("we are not using FeatureStr"); |
| TargetName = CPU.empty() ? "sm_20" : CPU; |
| |
| ParseSubtargetFeatures(TargetName, FS); |
| |
| // Set default to PTX 3.2 (CUDA 5.5) |
| if (PTXVersion == 0) { |
| PTXVersion = 32; |
| } |
| |
| return *this; |
| } |
| |
| NVPTXSubtarget::NVPTXSubtarget(const std::string &TT, const std::string &CPU, |
| const std::string &FS, const TargetMachine &TM, |
| bool is64Bit) |
| : NVPTXGenSubtargetInfo(TT, CPU, FS), Is64Bit(is64Bit), PTXVersion(0), |
| SmVersion(20), DL(computeDataLayout(is64Bit)), |
| InstrInfo(initializeSubtargetDependencies(CPU, FS)), |
| TLInfo((const NVPTXTargetMachine &)TM), TSInfo(&DL), |
| FrameLowering(*this) { |
| |
| Triple T(TT); |
| |
| if (T.getOS() == Triple::NVCL) |
| drvInterface = NVPTX::NVCL; |
| else |
| drvInterface = NVPTX::CUDA; |
| } |