[Misc] update llvm version to 13

Author: LFsWang

include/soll/AST/Decl.h

@@ -29,8 +29,7 @@ class Decl {
   friend class ASTReader;
 
 protected:
-  Decl(SourceRange L,
-       llvm::StringRef Name = llvm::StringRef::withNullAsEmpty(nullptr),
+  Decl(SourceRange L, llvm::StringRef Name = llvm::StringRef(""),
        Visibility vis = Visibility::Default)
       : Location(L), Name(Name.str()), Vis(vis), UniqueName(Name.str()) {}
 

lib/Frontend/ASTConsumers/ASTPrinter.cpp

@@ -2,9 +2,11 @@
 #include "soll/AST/AST.h"
 #include "soll/AST/ASTConsumer.h"
 #include "soll/Frontend/ASTConsumers.h"
+#if LLVM_VERSION_MAJOR >= 13
+#include <llvm/ADT/StringExtras.h>
+#endif
 #include <llvm/ADT/Twine.h>
 #include <llvm/Support/raw_ostream.h>
-
 namespace {
 
 std::string ToString(soll::UnaryOperatorKind op) {
@@ -136,7 +138,11 @@ std::string ToString(soll::TypePtr type) {
     return llvm::Twine(ToString(at->getElementType()) + "[" +
                        (at->isDynamicSized()
                             ? ""
+#if LLVM_VERSION_MAJOR >= 13
+                            : toString(at->getLength(), 10, false)) +
+#else
                             : at->getLength().toString(10, false)) +
+#endif
                        "]")
         .str();
   }
@@ -495,7 +501,11 @@ void ASTPrinter::visit(NumberLiteralType &literal) {
   const bool Signed =
       dynamic_cast<IntegerType *>(literal.getType().get())->isSigned();
   os() << indent() << "NumberLiteral "
+#if LLVM_VERSION_MAJOR >= 13
+       << toString(literal.getValue(), 10, Signed) << "\n";
+#else
        << literal.getValue().toString(10, Signed) << "\n";
+#endif
   ConstStmtVisitor::visit(literal);
   unindent();
 }

lib/Frontend/CompilerInstance.cpp

@@ -278,7 +278,12 @@ std::unique_ptr<llvm::raw_pwrite_stream> CompilerInstance::createOutputFile(
     OSFile = OutFile;
     OS.reset(new llvm::raw_fd_ostream(
         OSFile, Error,
-        (Binary ? llvm::sys::fs::F_None : llvm::sys::fs::F_Text)));
+#if LLVM_VERSION_MAJOR >= 13
+        (Binary ? llvm::sys::fs::OF_None : llvm::sys::fs::OF_Text)
+#else
+        (Binary ? llvm::sys::fs::F_None : llvm::sys::fs::F_Text)
+#endif
+            ));
     if (Error)
       return nullptr;
   }