[PATCH] Make getLastArgNoClaim work for up to 4 arguments.

[Filipe Cabecinhas]

REPOSITORY
  rL LLVM

http://reviews.llvm.org/D8508

Files:
  llvm/trunk/include/llvm/Option/ArgList.h
  llvm/trunk/lib/Option/ArgList.cpp

Index: llvm/trunk/lib/Option/ArgList.cpp
===================================================================
--- llvm/trunk/lib/Option/ArgList.cpp
+++ llvm/trunk/lib/Option/ArgList.cpp
@@ -63,6 +63,26 @@
   return nullptr;
 }
 
+Arg *ArgList::getLastArgNoClaim(OptSpecifier Id0, OptSpecifier Id1,
+                                OptSpecifier Id2) 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) ||
+        (*it)->getOption().matches(Id2))
+      return *it;
+  return nullptr;
+}
+
+Arg *ArgList::getLastArgNoClaim(OptSpecifier Id0, OptSpecifier Id1,
+                                OptSpecifier Id2, OptSpecifier Id3) 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) ||
+        (*it)->getOption().matches(Id2) || (*it)->getOption().matches(Id3))
+      return *it;
+  return nullptr;
+}
+
 Arg *ArgList::getLastArg(OptSpecifier Id) const {
   Arg *Res = nullptr;
   for (const_iterator it = begin(), ie = end(); it != ie; ++it) {
Index: llvm/trunk/include/llvm/Option/ArgList.h
===================================================================
--- llvm/trunk/include/llvm/Option/ArgList.h
+++ llvm/trunk/include/llvm/Option/ArgList.h
@@ -190,6 +190,10 @@
   /// \p Claim Whether the argument should be claimed, if it exists.
   Arg *getLastArgNoClaim(OptSpecifier Id) const;
   Arg *getLastArgNoClaim(OptSpecifier Id0, OptSpecifier Id1) const;
+  Arg *getLastArgNoClaim(OptSpecifier Id0, OptSpecifier Id1,
+                         OptSpecifier Id2) const;
+  Arg *getLastArgNoClaim(OptSpecifier Id0, OptSpecifier Id1, OptSpecifier Id2,
+                         OptSpecifier Id3) const;
   Arg *getLastArg(OptSpecifier Id) const;
   Arg *getLastArg(OptSpecifier Id0, OptSpecifier Id1) const;
   Arg *getLastArg(OptSpecifier Id0, OptSpecifier Id1, OptSpecifier Id2) const;

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