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enable iv-users simplification by default

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89713 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jim Grosbach
2009-11-23 23:25:54 +00:00
parent 735afe14ee
commit dbc3577ea1
1 changed files with 1 additions and 7 deletions
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8
lib/Analysis/IVUsers.cpp
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@@ -24,7 +24,6 @@
#include "llvm/ADT/STLExtras.h" #include "llvm/ADT/STLExtras.h"
#include "llvm/Support/Debug.h" #include "llvm/Support/Debug.h"
#include "llvm/Support/raw_ostream.h" #include "llvm/Support/raw_ostream.h"
#include "llvm/Support/CommandLine.h"
#include <algorithm> #include <algorithm>
using namespace llvm; using namespace llvm;
@@ -32,10 +31,6 @@ char IVUsers::ID = 0;
static RegisterPass<IVUsers> static RegisterPass<IVUsers>
X("iv-users", "Induction Variable Users", false, true); 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() { Pass *llvm::createIVUsersPass() {
return new IVUsers(); return new IVUsers();
} }
@@ -214,8 +209,7 @@ bool IVUsers::AddUsersIfInteresting(Instruction *I) {
return false; // Non-reducible symbolic expression, bail out. return false; // Non-reducible symbolic expression, bail out.
// Keep things simple. Don't touch loop-variant strides. // Keep things simple. Don't touch loop-variant strides.
if (SimplifyIVUsers && !Stride->isLoopInvariant(L) if (!Stride->isLoopInvariant(L) && L->contains(I->getParent()))
&& L->contains(I->getParent()))
return false; return false;
SmallPtrSet<Instruction *, 4> UniqueUsers; SmallPtrSet<Instruction *, 4> UniqueUsers;