[llvm-commits] [llvm] r40655 - /llvm/trunk/lib/Transforms/Scalar/GVN.cpp

[Owen Anderson]

Author: resistor
Date: Tue Jul 31 18:27:13 2007
New Revision: 40655

URL: http://llvm.org/viewvc/llvm-project?rev=40655&view=rev
Log:
Don't let the memory allocator outsmart GVN. ;-)

Modified:
    llvm/trunk/lib/Transforms/Scalar/GVN.cpp

Modified: llvm/trunk/lib/Transforms/Scalar/GVN.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/Scalar/GVN.cpp?rev=40655&r1=40654&r2=40655&view=diff

==============================================================================
--- llvm/trunk/lib/Transforms/Scalar/GVN.cpp (original)
+++ llvm/trunk/lib/Transforms/Scalar/GVN.cpp Tue Jul 31 18:27:13 2007
@@ -558,6 +558,11 @@
   nextValueNumber = 1;
 }
 
+/// erase - Remove a value from the value numbering
+void ValueTable::erase(Value* V) {
+  valueNumbering.erase(V);
+}
+
 //===----------------------------------------------------------------------===//
 //                       ValueNumberedSet Class
 //===----------------------------------------------------------------------===//
@@ -871,6 +876,7 @@
   if (currAvail.test(num)) {
     Value* repl = find_leader(currAvail, num);
     
+    VN.erase(I);
     I->replaceAllUsesWith(repl);
     toErase.push_back(I);
     return true;