Add an overload of getLastArgNoClaim taking two OptSpecifiers.

[• ehsan]

Summary

This will be used in clang.

[hans]

lgtm

[• ehsan]

Closed by commit rL217702 (authored by @ehsan).

include/llvm/Option/ArgList.h

public:
   bool hasArg(OptSpecifier Id0, OptSpecifier Id1, OptSpecifier Id2) const {
     return getLastArg(Id0, Id1, Id2) != nullptr;
   }
 
   /// getLastArg - Return the last argument matching \p Id, or null.
   ///
   /// \p Claim Whether the argument should be claimed, if it exists.
   Arg *getLastArgNoClaim(OptSpecifier Id) const;
+  Arg *getLastArgNoClaim(OptSpecifier Id0, OptSpecifier Id1) const;
   Arg *getLastArg(OptSpecifier Id) const;
   Arg *getLastArg(OptSpecifier Id0, OptSpecifier Id1) const;
   Arg *getLastArg(OptSpecifier Id0, OptSpecifier Id1, OptSpecifier Id2) const;
   Arg *getLastArg(OptSpecifier Id0, OptSpecifier Id1, OptSpecifier Id2,
                   OptSpecifier Id3) const;
   Arg *getLastArg(OptSpecifier Id0, OptSpecifier Id1, OptSpecifier Id2,
                   OptSpecifier Id3, OptSpecifier Id4) const;
   Arg *getLastArg(OptSpecifier Id0, OptSpecifier Id1, OptSpecifier Id2,

lib/Option/ArgList.cpp

 Arg *ArgList::getLastArgNoClaim(OptSpecifier Id) const {
   // FIXME: Make search efficient?
   for (const_reverse_iterator it = rbegin(), ie = rend(); it != ie; ++it)
     if ((*it)->getOption().matches(Id))
       return *it;
   return nullptr;
 }
 
+Arg *ArgList::getLastArgNoClaim(OptSpecifier Id0, OptSpecifier Id1) const {
+  // FIXME: Make search efficient?
+  for (const_reverse_iterator it = rbegin(), ie = rend(); it != ie; ++it)
+    if ((*it)->getOption().matches(Id0) ||
+        (*it)->getOption().matches(Id1))
+      return *it;
+  return nullptr;
+}
+
 Arg *ArgList::getLastArg(OptSpecifier Id) const {
   Arg *Res = nullptr;
   for (const_iterator it = begin(), ie = end(); it != ie; ++it) {
     if ((*it)->getOption().matches(Id)) {
       Res = *it;
       Res->claim();
     }
   }