Adding getAnalysisUsage method

Change-Id: I88f34dc98f15b0ef5df91c3cae1dc9f1652db529

Author: jsantillan2017

IGC/Compiler/CustomSafeOptPass.cpp

@@ -1045,6 +1045,8 @@ TrivialLocalMemoryOpsElimination::TrivialLocalMemoryOpsElimination() : FunctionP
 bool TrivialLocalMemoryOpsElimination::runOnFunction(Function& F)
 {
     bool change = false;
+
+
     visit(F);
     if (!abortPass && (m_LocalLoadsToRemove.empty() ^ m_LocalStoresToRemove.empty()))
     {

IGC/Compiler/CustomSafeOptPass.hpp

@@ -25,6 +25,7 @@ SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 ======================= end_copyright_notice ==================================*/
 #pragma once
 #include "Compiler/CodeGenContextWrapper.hpp"
+#include "common/MDFrameWork.h"
 
 #include "common/LLVMWarningsPush.hpp"
 #include <llvm/Pass.h>
@@ -111,6 +112,12 @@ namespace IGC
 
         ~TrivialLocalMemoryOpsElimination() {}
 
+        virtual void getAnalysisUsage(llvm::AnalysisUsage& AU) const override
+        {
+            AU.addRequired<CodeGenContextWrapper>();
+            AU.setPreservesCFG();
+        }
+
         virtual bool runOnFunction(llvm::Function& F) override;
 
         virtual llvm::StringRef getPassName() const override