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enable iv-users simplification by default 

llvm-svn: 89713
This commit is contained in:
Jim Grosbach 2009-11-23 23:25:54 +00:00
parent b0c0b08c71
commit bf2956a88b
1 changed files with 1 additions and 7 deletions
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8
llvm/lib/Analysis/IVUsers.cpp
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@ -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;