enable iv-users simplification by default

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89713 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Analysis/IVUsers.cpp b/lib/Analysis/IVUsers.cpp
index efe40e4..37747b6 100644 (file)
--- a/lib/Analysis/IVUsers.cpp
+++ b/lib/Analysis/IVUsers.cpp
@@ -24,7 +24,6 @@
 #include "llvm/ADT/STLExtras.h"
 #include "llvm/Support/Debug.h"
 #include "llvm/Support/raw_ostream.h"
-#include "llvm/Support/CommandLine.h"
 #include <algorithm>
 using namespace llvm;
 
@@ -32,10 +31,6 @@ char IVUsers::ID = 0;
 static RegisterPass<IVUsers>
 X("iv-users", "Induction Variable Users", false, true);
 
-static cl::opt<bool>
-SimplifyIVUsers("simplify-iv-users", cl::Hidden, cl::init(false),
-          cl::desc("Restrict IV Users to loop-invariant strides"));
-
 Pass *llvm::createIVUsersPass() {
   return new IVUsers();
 }
@@ -214,8 +209,7 @@ bool IVUsers::AddUsersIfInteresting(Instruction *I) {
     return false;  // Non-reducible symbolic expression, bail out.
 
   // Keep things simple. Don't touch loop-variant strides.
-  if (SimplifyIVUsers && !Stride->isLoopInvariant(L)
-      && L->contains(I->getParent()))
+  if (!Stride->isLoopInvariant(L) && L->contains(I->getParent()))
     return false;
 
   SmallPtrSet<Instruction *, 4> UniqueUsers;