llvm/lib/Target/VE/VESubtarget.cpp

   1 //===-- VESubtarget.cpp - VE Subtarget Information ------------------------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8 //
   9 // This file implements the VE specific subclass of TargetSubtargetInfo.
  10 //
  11 //===----------------------------------------------------------------------===//
  12
  13 #include "VESubtarget.h"
  14 #include "llvm/MC/TargetRegistry.h"
  15
  16 using namespace llvm;
  17
  18 #define DEBUG_TYPE "ve-subtarget"
  19
  20 #define GET_SUBTARGETINFO_TARGET_DESC
  21 #define GET_SUBTARGETINFO_CTOR
  22 #include "VEGenSubtargetInfo.inc"
  23
  24 void VESubtarget::anchor() {}
  25
  26 VESubtarget &VESubtarget::initializeSubtargetDependencies(StringRef CPU,
  27                                                           StringRef FS) {
  28   // Default feature settings
  29   EnableVPU = false;
  30
  31   // Determine default and user specified characteristics
  32   std::string CPUName = std::string(CPU);
  33   if (CPUName.empty())
  34     CPUName = "generic";
  35
  36   // Parse features string.
  37   ParseSubtargetFeatures(CPUName, /*TuneCPU=*/CPU, FS);
  38
  39   return *this;
  40 }
  41
  42 VESubtarget::VESubtarget(const Triple &TT, const std::string &CPU,
  43                          const std::string &FS, const TargetMachine &TM)
  44     : VEGenSubtargetInfo(TT, CPU, /*TuneCPU=*/CPU, FS), TargetTriple(TT),
  45       InstrInfo(initializeSubtargetDependencies(CPU, FS)), TLInfo(TM, *this),
  46       FrameLowering(*this) {}
  47
  48 uint64_t VESubtarget::getAdjustedFrameSize(uint64_t FrameSize) const {
  49   // Calculate adjusted frame size by adding the size of RSA frame,
  50   // return address, and frame poitner as described in VEFrameLowering.cpp.
  51   const VEFrameLowering *TFL = getFrameLowering();
  52
  53   FrameSize += getRsaSize();
  54   FrameSize = alignTo(FrameSize, TFL->getStackAlign());
  55
  56   return FrameSize;
  57 }
  58
  59 bool VESubtarget::enableMachineScheduler() const { return true; }