[cleanup] Re-sort all the includes with utils/sort_includes.py.

[oota-llvm.git] / lib / CodeGen / Passes.cpp

diff --git a/lib/CodeGen/Passes.cpp b/lib/CodeGen/Passes.cpp
index 0e8e50eca79ca5473923ff69ba218c786f41ad21..7a7c42bfcc628641f6887d866bae7d834a0985ee 100644 (file)
--- a/lib/CodeGen/Passes.cpp
+++ b/lib/CodeGen/Passes.cpp
@@ -70,6 +70,8 @@ static cl::opt<bool> DisableMachineSink("disable-machine-sink", cl::Hidden,
     cl::desc("Disable Machine Sinking"));
 static cl::opt<bool> DisableLSR("disable-lsr", cl::Hidden,
     cl::desc("Disable Loop Strength Reduction Pass"));
+static cl::opt<bool> DisableConstantHoisting("disable-constant-hoisting",
+    cl::Hidden, cl::desc("Disable ConstantHoisting"));
 static cl::opt<bool> DisableCGP("disable-cgp", cl::Hidden,
     cl::desc("Disable Codegen Prepare"));
 static cl::opt<bool> DisableCopyProp("disable-copyprop", cl::Hidden,
@@ -396,6 +398,10 @@ void TargetPassConfig::addIRPasses() {
 
   // Make sure that no unreachable blocks are instruction selected.
   addPass(createUnreachableBlockEliminationPass());
+
+  // Prepare expensive constants for SelectionDAG.
+  if (getOptLevel() != CodeGenOpt::None && !DisableConstantHoisting)
+    addPass(createConstantHoistingPass());
 }
 
 /// Turn exception handling constructs into something the code generators can