Add option to createGVNPass to disable PRE.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85609 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Transforms/Scalar/GVN.cpp b/lib/Transforms/Scalar/GVN.cpp
index dd8859b..33ad4e1 100644
--- a/lib/Transforms/Scalar/GVN.cpp
+++ b/lib/Transforms/Scalar/GVN.cpp
@@ -669,9 +669,10 @@
bool runOnFunction(Function &F);
public:
static char ID; // Pass identification, replacement for typeid
- GVN() : FunctionPass(&ID) { }
+ GVN(bool nopre = false) : FunctionPass(&ID), NoPRE(nopre) { }
private:
+ bool NoPRE;
MemoryDependenceAnalysis *MD;
DominatorTree *DT;
@@ -710,7 +711,7 @@
}
// createGVNPass - The public interface to this file...
-FunctionPass *llvm::createGVNPass() { return new GVN(); }
+FunctionPass *llvm::createGVNPass(bool NoPRE) { return new GVN(NoPRE); }
static RegisterPass<GVN> X("gvn",
"Global Value Numbering");