Function getTypeStr

lib/propanalysis/ArgFlow.cpp:15–71

ref: http://llvm.org/doxygen/AsmWriter_8cpp_source.html#l00446 Write the specified type to the specified raw_ostream, making use of type names or up references to shorten the type name where possible.

/// Write the specified type to the specified raw_ostream, making use of type
/// names or up references to shorten the type name where possible.
llvm::StringRef getTypeStr(llvm::Type *Ty) {
  if (!Ty)
    return "";

  switch (Ty->getTypeID()) {
  case llvm::Type::VoidTyID:
    return "void";
  case llvm::Type::HalfTyID:
    return "half";
  case llvm::Type::FloatTyID:
    return "float";
  case llvm::Type::DoubleTyID:
    return "double";
  case llvm::Type::X86_FP80TyID:
    return "x86_fp80";
  case llvm::Type::FP128TyID:
    return "fp128";
  case llvm::Type::PPC_FP128TyID:
    return "ppc_fp128";
  case llvm::Type::LabelTyID:
    return "label";
  case llvm::Type::MetadataTyID:
    return "metadata";
  case llvm::Type::X86_MMXTyID:
    return "x86_mmx";
  case llvm::Type::TokenTyID:
    return "token";
  case llvm::Type::IntegerTyID:
    return "int";
  case llvm::Type::FunctionTyID:
    return "function";
  case llvm::Type::StructTyID: {
    llvm::StructType *STy = llvm::cast<llvm::StructType>(Ty);
    if (!STy->getName().empty()) {
      return STy->getName();
    }
    return "struct";
  }
  case llvm::Type::ArrayTyID:
    return "array";
#if LLVM_VERSION_MAJOR >= 12
  case llvm::Type::FixedVectorTyID:
  case llvm::Type::ScalableVectorTyID:
#else
  case llvm::Type::VectorTyID:
#endif
  {
    return "vector";
  }
  case llvm::Type::PointerTyID: {
    llvm::PointerType *PTy = llvm::cast<llvm::PointerType>(Ty);
    return getTypeStr(PTy->getElementType());
  }
  default:
    return "";
  }
}