Fix lines that exceed 80 columns. There is no change in functionality.

[oota-llvm.git] / lib / VMCore / Use.cpp

diff --git a/lib/VMCore/Use.cpp b/lib/VMCore/Use.cpp
index c44c17f55e5f15de84134934ff6edb2aaf1b3cce..2258b8d985ae066ff85471a292b0aec48678a563 100644 (file)
--- a/lib/VMCore/Use.cpp
+++ b/lib/VMCore/Use.cpp
@@ -11,7 +11,7 @@
 //
 //===----------------------------------------------------------------------===//
 
-#include "llvm/User.h"
+#include "llvm/Value.h"
 
 namespace llvm {
 
@@ -85,17 +85,31 @@ const Use *Use::getImpliedUser() const {
 //                         Use initTags Implementation
 //===----------------------------------------------------------------------===//
 
-Use *Use::initTags(Use * const Start, Use *Stop, ptrdiff_t Done) {
+Use *Use::initTags(Use * const Start, Use *Stop) {
+  ptrdiff_t Done = 0;
+  while (Done < 20) {
+    if (Start == Stop--)
+      return Start;
+    static const PrevPtrTag tags[20] = { fullStopTag, oneDigitTag, stopTag,
+                                         oneDigitTag, oneDigitTag, stopTag,
+                                         zeroDigitTag, oneDigitTag, oneDigitTag,
+                                         stopTag, zeroDigitTag, oneDigitTag,
+                                         zeroDigitTag, oneDigitTag, stopTag,
+                                         oneDigitTag, oneDigitTag, oneDigitTag,
+                                         oneDigitTag, stopTag
+                                       };
+    new(Stop) Use(tags[Done++]);
+  }
+
   ptrdiff_t Count = Done;
   while (Start != Stop) {
     --Stop;
-    Stop->Val = 0;
     if (!Count) {
-      Stop->Prev.setFromOpaqueValue(reinterpret_cast<Use**>(Done == 0 ? fullStopTag : stopTag));
+      new(Stop) Use(stopTag);
       ++Done;
       Count = Done;
     } else {
-      Stop->Prev.setFromOpaqueValue(reinterpret_cast<Use**>(Count & 1));
+      new(Stop) Use(PrevPtrTag(Count & 1));
       Count >>= 1;
       ++Done;
     }
@@ -109,55 +123,24 @@ Use *Use::initTags(Use * const Start, Use *Stop, ptrdiff_t Done) {
 //===----------------------------------------------------------------------===//
 
 void Use::zap(Use *Start, const Use *Stop, bool del) {
-  if (del) {
-    while (Start != Stop) {
-      (--Stop)->~Use();
-    }
+  while (Start != Stop)
+    (--Stop)->~Use();
+  if (del)
     ::operator delete(Start);
-    return;
-  }
-
-  while (Start != Stop) {
-    (Start++)->set(0);
-  }
 }
 
-//===----------------------------------------------------------------------===//
-//                         AugmentedUse layout struct
-//===----------------------------------------------------------------------===//
-
-struct AugmentedUse : Use {
-  PointerIntPair<User*, 1, Tag> ref;
-  AugmentedUse(); // not implemented
-};
-
-
 //===----------------------------------------------------------------------===//
 //                         Use getUser Implementation
 //===----------------------------------------------------------------------===//
 
 User *Use::getUser() const {
   const Use *End = getImpliedUser();
-  PointerIntPair<User*, 1, Tag>& ref(static_cast<const AugmentedUse*>(End - 1)->ref);
+  const PointerIntPair<User*, 1, unsigned>&
+    ref(static_cast<const AugmentedUse*>(End - 1)->ref);
   User *She = ref.getPointer();
   return ref.getInt()
     ? She
     : (User*)End;
 }
 
-//===----------------------------------------------------------------------===//
-//                         User allocHungoffUses Implementation
-//===----------------------------------------------------------------------===//
-
-Use *User::allocHungoffUses(unsigned N) const {
-  Use *Begin = static_cast<Use*>(::operator new(sizeof(Use) * N
-                                                + sizeof(AugmentedUse)
-                                                - sizeof(Use)));
-  Use *End = Begin + N;
-  PointerIntPair<User*, 1, Tag>& ref(static_cast<AugmentedUse&>(End[-1]).ref);
-  ref.setPointer(const_cast<User*>(this));
-  ref.setInt(tagOne);
-  return Use::initTags(Begin, End);
-}
-
 } // End llvm namespace