[llvm-commits] [llvm] r49900 - in /llvm/branches/ggreif/use-diet: include/llvm/Use.h lib/VMCore/Use.cpp

[Gabor Greif]

Author: ggreif
Date: Fri Apr 18 09:00:34 2008
New Revision: 49900

URL: http://llvm.org/viewvc/llvm-project?rev=49900&view=rev
Log:
clearing of Val still necessary, transferTag takes an *untagged* To pointer, cleanups

Modified:
    llvm/branches/ggreif/use-diet/include/llvm/Use.h
    llvm/branches/ggreif/use-diet/lib/VMCore/Use.cpp

Modified: llvm/branches/ggreif/use-diet/include/llvm/Use.h
URL: http://llvm.org/viewvc/llvm-project/llvm/branches/ggreif/use-diet/include/llvm/Use.h?rev=49900&r1=49899&r2=49900&view=diff

==============================================================================
--- llvm/branches/ggreif/use-diet/include/llvm/Use.h (original)
+++ llvm/branches/ggreif/use-diet/include/llvm/Use.h Fri Apr 18 09:00:34 2008
@@ -132,8 +132,9 @@
     *List = this;
   }
   void removeFromList() {
-    *llvm::stripTag<fullStopTag>(Prev) = Next;
-    if (Next) Next->Prev = llvm::transferTag<fullStopTag>(Next->Prev, Prev);
+    Use **StrippedPrev = llvm::stripTag<fullStopTag>(Prev);
+    *StrippedPrev = Next;
+    if (Next) Next->Prev = llvm::transferTag<fullStopTag>(Next->Prev, StrippedPrev);
   }
 
   friend class Value;

Modified: llvm/branches/ggreif/use-diet/lib/VMCore/Use.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/branches/ggreif/use-diet/lib/VMCore/Use.cpp?rev=49900&r1=49899&r2=49900&view=diff

==============================================================================
--- llvm/branches/ggreif/use-diet/lib/VMCore/Use.cpp (original)
+++ llvm/branches/ggreif/use-diet/lib/VMCore/Use.cpp Fri Apr 18 09:00:34 2008
@@ -11,7 +11,6 @@
 //
 //===----------------------------------------------------------------------===//
 
-//#include "llvm/Value.h"
 #include "llvm/User.h"
 
 namespace llvm {
@@ -27,8 +26,7 @@
 
   while (true) {
     unsigned Tag = extractTag<PrevPtrTag, fullStopTag>(Current->Prev);
-    switch (Tag)
-      {
+    switch (Tag) {
       case zeroDigitTag:
       case oneDigitTag:
         if (StopEncountered)
@@ -54,9 +52,9 @@
 
 Use *Use::initTags(Use * const Start, Use *Stop, ptrdiff_t Done) {
   ptrdiff_t Count = 0;
-  while (Start != Stop) 
-  {
+  while (Start != Stop) {
     --Stop;
+    Stop->Val = 0;
     if (!Count) {
       Stop->Prev = reinterpret_cast<Use**>(Done == 0 ? fullStopTag : stopTag);
       ++Done;