X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=include%2Fllvm%2FIR%2FValue.h;h=bb7ff278fdef74b88d068c419cf280977cb81b6c;hb=982aa42a6efd967b7dd0bbb82859f1736072ac56;hp=7c9cf0fae326b1740895493d63990bd1015eb89c;hpb=4769a7486b277ecdcf30e66d63de1d809c594af0;p=oota-llvm.git

diff --git a/include/llvm/IR/Value.h b/include/llvm/IR/Value.h
index 7c9cf0fae32..bb7ff278fde 100644
--- a/include/llvm/IR/Value.h
+++ b/include/llvm/IR/Value.h
@@ -14,7 +14,6 @@
 #ifndef LLVM_IR_VALUE_H
 #define LLVM_IR_VALUE_H
 
-#include "llvm-c/Core.h"
 #include "llvm/ADT/iterator_range.h"
 #include "llvm/IR/Use.h"
 #include "llvm/Support/CBindingWrapping.h"
@@ -202,8 +201,9 @@ public:
 
   /// \brief Implement operator<< on Value.
   /// @{
-  void print(raw_ostream &O) const;
-  void print(raw_ostream &O, ModuleSlotTracker &MST) const;
+  void print(raw_ostream &O, bool IsForDebug = false) const;
+  void print(raw_ostream &O, ModuleSlotTracker &MST,
+             bool IsForDebug = false) const;
   /// @}
 
   /// \brief Print the name of this Value out to the specified raw_ostream.
@@ -273,36 +273,91 @@ public:
   //----------------------------------------------------------------------
   // Methods for handling the chain of uses of this Value.
   //
-  bool               use_empty() const { return UseList == nullptr; }
+  // Materializing a function can introduce new uses, so these methods come in
+  // two variants:
+  // The methods that start with materialized_ check the uses that are
+  // currently known given which functions are materialized. Be very careful
+  // when using them since you might not get all uses.
+  // The methods that don't start with materialized_ assert that modules is
+  // fully materialized.
+#ifdef NDEBUG
+  void assertModuleIsMaterialized() const {}
+#else
+  void assertModuleIsMaterialized() const;
+#endif
+
+  bool use_empty() const {
+    assertModuleIsMaterialized();
+    return UseList == nullptr;
+  }
 
-  typedef use_iterator_impl<Use>       use_iterator;
+  typedef use_iterator_impl<Use> use_iterator;
   typedef use_iterator_impl<const Use> const_use_iterator;
-  use_iterator       use_begin()       { return use_iterator(UseList); }
-  const_use_iterator use_begin() const { return const_use_iterator(UseList); }
-  use_iterator       use_end()         { return use_iterator();   }
-  const_use_iterator use_end()   const { return const_use_iterator();   }
+  use_iterator materialized_use_begin() { return use_iterator(UseList); }
+  const_use_iterator materialized_use_begin() const {
+    return const_use_iterator(UseList);
+  }
+  use_iterator use_begin() {
+    assertModuleIsMaterialized();
+    return materialized_use_begin();
+  }
+  const_use_iterator use_begin() const {
+    assertModuleIsMaterialized();
+    return materialized_use_begin();
+  }
+  use_iterator use_end() { return use_iterator(); }
+  const_use_iterator use_end() const { return const_use_iterator(); }
+  iterator_range<use_iterator> materialized_uses() {
+    return make_range(materialized_use_begin(), use_end());
+  }
+  iterator_range<const_use_iterator> materialized_uses() const {
+    return make_range(materialized_use_begin(), use_end());
+  }
   iterator_range<use_iterator> uses() {
-    return iterator_range<use_iterator>(use_begin(), use_end());
+    assertModuleIsMaterialized();
+    return materialized_uses();
   }
   iterator_range<const_use_iterator> uses() const {
-    return iterator_range<const_use_iterator>(use_begin(), use_end());
+    assertModuleIsMaterialized();
+    return materialized_uses();
   }
 
-  bool               user_empty() const { return UseList == nullptr; }
+  bool user_empty() const {
+    assertModuleIsMaterialized();
+    return UseList == nullptr;
+  }
 
-  typedef user_iterator_impl<User>       user_iterator;
+  typedef user_iterator_impl<User> user_iterator;
   typedef user_iterator_impl<const User> const_user_iterator;
-  user_iterator       user_begin()       { return user_iterator(UseList); }
-  const_user_iterator user_begin() const { return const_user_iterator(UseList); }
-  user_iterator       user_end()         { return user_iterator();   }
-  const_user_iterator user_end()   const { return const_user_iterator();   }
-  User               *user_back()        { return *user_begin(); }
-  const User         *user_back()  const { return *user_begin(); }
+  user_iterator materialized_user_begin() { return user_iterator(UseList); }
+  const_user_iterator materialized_user_begin() const {
+    return const_user_iterator(UseList);
+  }
+  user_iterator user_begin() {
+    assertModuleIsMaterialized();
+    return materialized_user_begin();
+  }
+  const_user_iterator user_begin() const {
+    assertModuleIsMaterialized();
+    return materialized_user_begin();
+  }
+  user_iterator user_end() { return user_iterator(); }
+  const_user_iterator user_end() const { return const_user_iterator(); }
+  User *user_back() {
+    assertModuleIsMaterialized();
+    return *materialized_user_begin();
+  }
+  const User *user_back() const {
+    assertModuleIsMaterialized();
+    return *materialized_user_begin();
+  }
   iterator_range<user_iterator> users() {
-    return iterator_range<user_iterator>(user_begin(), user_end());
+    assertModuleIsMaterialized();
+    return make_range(materialized_user_begin(), user_end());
   }
   iterator_range<const_user_iterator> users() const {
-    return iterator_range<const_user_iterator>(user_begin(), user_end());
+    assertModuleIsMaterialized();
+    return make_range(materialized_user_begin(), user_end());
   }
 
   /// \brief Return true if there is exactly one user of this value.