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usr / src / contrib / llvm-project / llvm / lib / Target / Mips /

📁 ..
📁 AsmParser
📁 Disassembler
📁 MCTargetDesc
📄 MSA.txt(3.64 KB)
📄 MicroMips32r6InstrFormats.td(20.42 KB)
📄 MicroMips32r6InstrInfo.td(86.7 KB)
📄 MicroMipsDSPInstrFormats.td(6.55 KB)
📄 MicroMipsDSPInstrInfo.td(33.92 KB)
📄 MicroMipsInstrFPU.td(20.28 KB)
📄 MicroMipsInstrFormats.td(19.75 KB)
📄 MicroMipsInstrInfo.td(63.12 KB)
📄 MicroMipsSizeReduction.cpp(26.44 KB)
📄 Mips.h(1.85 KB)
📄 Mips.td(13.99 KB)
📄 Mips16FrameLowering.cpp(6.34 KB)
📄 Mips16FrameLowering.h(1.73 KB)
📄 Mips16HardFloat.cpp(15.87 KB)
📄 Mips16HardFloatInfo.cpp(1.45 KB)
📄 Mips16HardFloatInfo.h(1.33 KB)
📄 Mips16ISelDAGToDAG.cpp(7.33 KB)
📄 Mips16ISelDAGToDAG.h(1.8 KB)
📄 Mips16ISelLowering.cpp(29.05 KB)
📄 Mips16ISelLowering.h(3.29 KB)
📄 Mips16InstrFormats.td(16.29 KB)
📄 Mips16InstrInfo.cpp(17.93 KB)
📄 Mips16InstrInfo.h(5.33 KB)
📄 Mips16InstrInfo.td(51.26 KB)
📄 Mips16RegisterInfo.cpp(4.81 KB)
📄 Mips16RegisterInfo.h(1.56 KB)
📄 Mips32r6InstrFormats.td(14.85 KB)
📄 Mips32r6InstrInfo.td(47.55 KB)
📄 Mips64InstrInfo.td(58.62 KB)
📄 Mips64r6InstrInfo.td(15.93 KB)
📄 MipsAnalyzeImmediate.cpp(4.62 KB)
📄 MipsAnalyzeImmediate.h(2.24 KB)
📄 MipsAsmPrinter.cpp(43.89 KB)
📄 MipsAsmPrinter.h(6.04 KB)
📄 MipsBranchExpansion.cpp(29.72 KB)
📄 MipsCCState.cpp(6.71 KB)
📄 MipsCCState.h(6.14 KB)
📄 MipsCallLowering.cpp(23.62 KB)
📄 MipsCallLowering.h(3.35 KB)
📄 MipsCallingConv.td(17.55 KB)
📄 MipsCondMov.td(14.56 KB)
📄 MipsConstantIslandPass.cpp(62.17 KB)
📄 MipsDSPInstrFormats.td(7.39 KB)
📄 MipsDSPInstrInfo.td(68.68 KB)
📄 MipsDelaySlotFiller.cpp(32.55 KB)
📄 MipsEVAInstrFormats.td(2.51 KB)
📄 MipsEVAInstrInfo.td(8.52 KB)
📄 MipsExpandPseudo.cpp(30.1 KB)
📄 MipsFastISel.cpp(66.8 KB)
📄 MipsFrameLowering.cpp(5.75 KB)
📄 MipsFrameLowering.h(1.74 KB)
📄 MipsISelDAGToDAG.cpp(10.22 KB)
📄 MipsISelDAGToDAG.h(6.13 KB)
📄 MipsISelLowering.cpp(192.31 KB)
📄 MipsISelLowering.h(27.02 KB)
📄 MipsInstrFPU.td(44.82 KB)
📄 MipsInstrFormats.td(19.73 KB)
📄 MipsInstrInfo.cpp(28.1 KB)
📄 MipsInstrInfo.h(7.87 KB)
📄 MipsInstrInfo.td(138.02 KB)
📄 MipsInstructionSelector.cpp(34.44 KB)
📄 MipsLegalizerInfo.cpp(21.07 KB)
📄 MipsLegalizerInfo.h(1.19 KB)
📄 MipsMCInstLower.cpp(9.68 KB)
📄 MipsMCInstLower.h(1.77 KB)
📄 MipsMSAInstrFormats.td(9.18 KB)
📄 MipsMSAInstrInfo.td(182.92 KB)
📄 MipsMTInstrFormats.td(2.44 KB)
📄 MipsMTInstrInfo.td(7.59 KB)
📄 MipsMachineFunction.cpp(7.22 KB)
📄 MipsMachineFunction.h(4.37 KB)
📄 MipsModuleISelDAGToDAG.cpp(1.67 KB)
📄 MipsOptimizePICCall.cpp(9.78 KB)
📄 MipsOptionRecord.h(2.9 KB)
📄 MipsOs16.cpp(4.18 KB)
📄 MipsPfmCounters.td(706 B)
📄 MipsPreLegalizerCombiner.cpp(3.93 KB)
📄 MipsRegisterBankInfo.cpp(26.01 KB)
📄 MipsRegisterBankInfo.h(9.13 KB)
📄 MipsRegisterBanks.td(573 B)
📄 MipsRegisterInfo.cpp(10.41 KB)
📄 MipsRegisterInfo.h(2.82 KB)
📄 MipsRegisterInfo.td(23.18 KB)
📄 MipsSEFrameLowering.cpp(34.47 KB)
📄 MipsSEFrameLowering.h(1.88 KB)
📄 MipsSEISelDAGToDAG.cpp(49.41 KB)
📄 MipsSEISelDAGToDAG.h(5.92 KB)
📄 MipsSEISelLowering.cpp(140.76 KB)
📄 MipsSEISelLowering.h(6.25 KB)
📄 MipsSEInstrInfo.cpp(34.71 KB)
📄 MipsSEInstrInfo.h(5.34 KB)
📄 MipsSERegisterInfo.cpp(8.44 KB)
📄 MipsSERegisterInfo.h(1.2 KB)
📄 MipsSchedule.td(38.24 KB)
📄 MipsScheduleGeneric.td(71.71 KB)
📄 MipsScheduleP5600.td(27.85 KB)
📄 MipsSubtarget.cpp(10.72 KB)
📄 MipsSubtarget.h(13.43 KB)
📄 MipsTargetMachine.cpp(12.66 KB)
📄 MipsTargetMachine.h(3.08 KB)
📄 MipsTargetObjectFile.cpp(7.39 KB)
📄 MipsTargetObjectFile.h(2.02 KB)
📄 MipsTargetStreamer.h(14.58 KB)
📄 Relocation.txt(3.91 KB)
📁 TargetInfo

Editing: MipsCCState.cpp

//===---- MipsCCState.cpp - CCState with Mips specific extensions ---------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//

#include "MipsCCState.h"
#include "MipsSubtarget.h"
#include "llvm/IR/Module.h"

using namespace llvm;

/// This function returns true if CallSym is a long double emulation routine.
static bool isF128SoftLibCall(const char *CallSym) {
  const char *const LibCalls[] = {
      "__addtf3",      "__divtf3",     "__eqtf2",       "__extenddftf2",
      "__extendsftf2", "__fixtfdi",    "__fixtfsi",     "__fixtfti",
      "__fixunstfdi",  "__fixunstfsi", "__fixunstfti",  "__floatditf",
      "__floatsitf",   "__floattitf",  "__floatunditf", "__floatunsitf",
      "__floatuntitf", "__getf2",      "__gttf2",       "__letf2",
      "__lttf2",       "__multf3",     "__netf2",       "__powitf2",
      "__subtf3",      "__trunctfdf2", "__trunctfsf2",  "__unordtf2",
      "ceill",         "copysignl",    "cosl",          "exp2l",
      "expl",          "floorl",       "fmal",          "fmaxl",
      "fmodl",         "log10l",       "log2l",         "logl",
      "nearbyintl",    "powl",         "rintl",         "roundl",
      "sinl",          "sqrtl",        "truncl"};

// Check that LibCalls is sorted alphabetically.
  auto Comp = [](const char *S1, const char *S2) { return strcmp(S1, S2) < 0; };
  assert(llvm::is_sorted(LibCalls, Comp));
  return std::binary_search(std::begin(LibCalls), std::end(LibCalls), CallSym,
                            Comp);
}

/// This function returns true if Ty is fp128, {f128} or i128 which was
/// originally a fp128.
static bool originalTypeIsF128(const Type *Ty, const char *Func) {
  if (Ty->isFP128Ty())
    return true;

if (Ty->isStructTy() && Ty->getStructNumElements() == 1 &&
      Ty->getStructElementType(0)->isFP128Ty())
    return true;

// If the Ty is i128 and the function being called is a long double emulation
  // routine, then the original type is f128.
  return (Func && Ty->isIntegerTy(128) && isF128SoftLibCall(Func));
}

/// Return true if the original type was vXfXX.
static bool originalEVTTypeIsVectorFloat(EVT Ty) {
  if (Ty.isVector() && Ty.getVectorElementType().isFloatingPoint())
    return true;

return false;
}

/// Return true if the original type was vXfXX / vXfXX.
static bool originalTypeIsVectorFloat(const Type * Ty) {
  if (Ty->isVectorTy() && Ty->isFPOrFPVectorTy())
    return true;

return false;
}

MipsCCState::SpecialCallingConvType
MipsCCState::getSpecialCallingConvForCallee(const SDNode *Callee,
                                            const MipsSubtarget &Subtarget) {
  MipsCCState::SpecialCallingConvType SpecialCallingConv = NoSpecialCallingConv;
  if (Subtarget.inMips16HardFloat()) {
    if (const GlobalAddressSDNode *G =
            dyn_cast<const GlobalAddressSDNode>(Callee)) {
      llvm::StringRef Sym = G->getGlobal()->getName();
      Function *F = G->getGlobal()->getParent()->getFunction(Sym);
      if (F && F->hasFnAttribute("__Mips16RetHelper")) {
        SpecialCallingConv = Mips16RetHelperConv;
      }
    }
  }
  return SpecialCallingConv;
}

void MipsCCState::PreAnalyzeCallResultForF128(
    const SmallVectorImpl<ISD::InputArg> &Ins,
    const Type *RetTy, const char *Call) {
  for (unsigned i = 0; i < Ins.size(); ++i) {
    OriginalArgWasF128.push_back(
        originalTypeIsF128(RetTy, Call));
    OriginalArgWasFloat.push_back(RetTy->isFloatingPointTy());
  }
}

/// Identify lowered values that originated from f128 or float arguments and
/// record this for use by RetCC_MipsN.
void MipsCCState::PreAnalyzeReturnForF128(
    const SmallVectorImpl<ISD::OutputArg> &Outs) {
  const MachineFunction &MF = getMachineFunction();
  for (unsigned i = 0; i < Outs.size(); ++i) {
    OriginalArgWasF128.push_back(
        originalTypeIsF128(MF.getFunction().getReturnType(), nullptr));
    OriginalArgWasFloat.push_back(
        MF.getFunction().getReturnType()->isFloatingPointTy());
  }
}

/// Identify lower values that originated from vXfXX and record
/// this.
void MipsCCState::PreAnalyzeCallResultForVectorFloat(
    const SmallVectorImpl<ISD::InputArg> &Ins, const Type *RetTy) {
  for (unsigned i = 0; i < Ins.size(); ++i) {
    OriginalRetWasFloatVector.push_back(originalTypeIsVectorFloat(RetTy));
  }
}

/// Identify lowered values that originated from vXfXX arguments and record
/// this.
void MipsCCState::PreAnalyzeReturnForVectorFloat(
    const SmallVectorImpl<ISD::OutputArg> &Outs) {
  for (unsigned i = 0; i < Outs.size(); ++i) {
    ISD::OutputArg Out = Outs[i];
    OriginalRetWasFloatVector.push_back(
        originalEVTTypeIsVectorFloat(Out.ArgVT));
  }
}

/// Identify lowered values that originated from f128, float and sret to vXfXX
/// arguments and record this.
void MipsCCState::PreAnalyzeCallOperands(
    const SmallVectorImpl<ISD::OutputArg> &Outs,
    std::vector<TargetLowering::ArgListEntry> &FuncArgs,
    const char *Func) {
  for (unsigned i = 0; i < Outs.size(); ++i) {
    TargetLowering::ArgListEntry FuncArg = FuncArgs[Outs[i].OrigArgIndex];

OriginalArgWasF128.push_back(originalTypeIsF128(FuncArg.Ty, Func));
    OriginalArgWasFloat.push_back(FuncArg.Ty->isFloatingPointTy());
    OriginalArgWasFloatVector.push_back(FuncArg.Ty->isVectorTy());
    CallOperandIsFixed.push_back(Outs[i].IsFixed);
  }
}

/// Identify lowered values that originated from f128, float and vXfXX arguments
/// and record this.
void MipsCCState::PreAnalyzeFormalArgumentsForF128(
    const SmallVectorImpl<ISD::InputArg> &Ins) {
  const MachineFunction &MF = getMachineFunction();
  for (unsigned i = 0; i < Ins.size(); ++i) {
    Function::const_arg_iterator FuncArg = MF.getFunction().arg_begin();

// SRet arguments cannot originate from f128 or {f128} returns so we just
    // push false. We have to handle this specially since SRet arguments
    // aren't mapped to an original argument.
    if (Ins[i].Flags.isSRet()) {
      OriginalArgWasF128.push_back(false);
      OriginalArgWasFloat.push_back(false);
      OriginalArgWasFloatVector.push_back(false);
      continue;
    }

assert(Ins[i].getOrigArgIndex() < MF.getFunction().arg_size());
    std::advance(FuncArg, Ins[i].getOrigArgIndex());

OriginalArgWasF128.push_back(
        originalTypeIsF128(FuncArg->getType(), nullptr));
    OriginalArgWasFloat.push_back(FuncArg->getType()->isFloatingPointTy());

// The MIPS vector ABI exhibits a corner case of sorts or quirk; if the
    // first argument is actually an SRet pointer to a vector, then the next
    // argument slot is $a2.
    OriginalArgWasFloatVector.push_back(FuncArg->getType()->isVectorTy());
  }
}

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Editing: MipsCCState.cpp

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