From b3514569d078065ced56562e01fd5a39e01543da Mon Sep 17 00:00:00 2001
From: Benjamin Kramer <benny.kra@googlemail.com>
Date: Thu, 15 Sep 2011 21:17:37 +0000
Subject: [PATCH] CommandLine: Add support for 64 bit unsigned integer options.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139848 91177308-0d34-0410-b5e6-96231b3b80d8
---
 include/llvm/Support/CommandLine.h | 22 ++++++++++++++++++++++
 lib/Support/CommandLine.cpp        | 13 +++++++++++++
 2 files changed, 35 insertions(+)

diff --git a/include/llvm/Support/CommandLine.h b/include/llvm/Support/CommandLine.h
index ba8fbee94fd..c6b62a8df9a 100644
--- a/include/llvm/Support/CommandLine.h
+++ b/include/llvm/Support/CommandLine.h
@@ -805,6 +805,28 @@ public:
 
 EXTERN_TEMPLATE_INSTANTIATION(class basic_parser<unsigned>);
 
+//--------------------------------------------------
+// parser<unsigned long long>
+//
+template<>
+class parser<unsigned long long> : public basic_parser<unsigned long long> {
+public:
+  // parse - Return true on error.
+  bool parse(Option &O, StringRef ArgName, StringRef Arg,
+             unsigned long long &Val);
+
+  // getValueName - Overload in subclass to provide a better default value.
+  virtual const char *getValueName() const { return "uint"; }
+
+  void printOptionDiff(const Option &O, unsigned long long V, OptVal Default,
+                       size_t GlobalWidth) const;
+
+  // An out-of-line virtual method to provide a 'home' for this class.
+  virtual void anchor();
+};
+
+EXTERN_TEMPLATE_INSTANTIATION(class basic_parser<unsigned long long>);
+
 //--------------------------------------------------
 // parser<double>
 //
diff --git a/lib/Support/CommandLine.cpp b/lib/Support/CommandLine.cpp
index 839ec799d80..238adcce0a1 100644
--- a/lib/Support/CommandLine.cpp
+++ b/lib/Support/CommandLine.cpp
@@ -44,6 +44,7 @@ TEMPLATE_INSTANTIATION(class basic_parser<bool>);
 TEMPLATE_INSTANTIATION(class basic_parser<boolOrDefault>);
 TEMPLATE_INSTANTIATION(class basic_parser<int>);
 TEMPLATE_INSTANTIATION(class basic_parser<unsigned>);
+TEMPLATE_INSTANTIATION(class basic_parser<unsigned long long>);
 TEMPLATE_INSTANTIATION(class basic_parser<double>);
 TEMPLATE_INSTANTIATION(class basic_parser<float>);
 TEMPLATE_INSTANTIATION(class basic_parser<std::string>);
@@ -62,6 +63,7 @@ void parser<bool>::anchor() {}
 void parser<boolOrDefault>::anchor() {}
 void parser<int>::anchor() {}
 void parser<unsigned>::anchor() {}
+void parser<unsigned long long>::anchor() {}
 void parser<double>::anchor() {}
 void parser<float>::anchor() {}
 void parser<std::string>::anchor() {}
@@ -1005,6 +1007,16 @@ bool parser<unsigned>::parse(Option &O, StringRef ArgName,
   return false;
 }
 
+// parser<unsigned long long> implementation
+//
+bool parser<unsigned long long>::parse(Option &O, StringRef ArgName,
+                                      StringRef Arg, unsigned long long &Value){
+
+  if (Arg.getAsInteger(0, Value))
+    return O.error("'" + Arg + "' value invalid for uint argument!");
+  return false;
+}
+
 // parser<double>/parser<float> implementation
 //
 static bool parseDouble(Option &O, StringRef Arg, double &Value) {
@@ -1150,6 +1162,7 @@ PRINT_OPT_DIFF(bool)
 PRINT_OPT_DIFF(boolOrDefault)
 PRINT_OPT_DIFF(int)
 PRINT_OPT_DIFF(unsigned)
+PRINT_OPT_DIFF(unsigned long long)
 PRINT_OPT_DIFF(double)
 PRINT_OPT_DIFF(float)
 PRINT_OPT_DIFF(char)