[Hexagon] Delete lib/Target/Hexagon/HexagonRemoveSZExtArgs.cpp

llvm-svn: 250543

lib/Target/Hexagon/CMakeLists.txt

@@ -37,7 +37,6 @@ add_llvm_target(HexagonCodeGen
   HexagonNewValueJump.cpp
   HexagonPeephole.cpp
   HexagonRegisterInfo.cpp
-  HexagonRemoveSZExtArgs.cpp
   HexagonSelectionDAGInfo.cpp
   HexagonSplitConst32AndConst64.cpp
   HexagonStoreWidening.cpp

lib/Target/Hexagon/HexagonRemoveSZExtArgs.cpp

@@ -1,91 +0,0 @@
-//===- HexagonRemoveExtendArgs.cpp - Remove unnecessary argument sign extends //
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// Pass that removes sign extends for function parameters. These parameters
-// are already sign extended by the caller per Hexagon's ABI
-//
-//===----------------------------------------------------------------------===//
-
-#include "Hexagon.h"
-#include "HexagonTargetMachine.h"
-#include "llvm/CodeGen/MachineFunctionAnalysis.h"
-#include "llvm/CodeGen/StackProtector.h"
-#include "llvm/IR/Function.h"
-#include "llvm/IR/Instructions.h"
-#include "llvm/Pass.h"
-#include "llvm/Transforms/Scalar.h"
-
-using namespace llvm;
-
-namespace llvm {
-  FunctionPass *createHexagonRemoveExtendArgs(const HexagonTargetMachine &TM);
-  void initializeHexagonRemoveExtendArgsPass(PassRegistry&);
-}
-
-namespace {
-  struct HexagonRemoveExtendArgs : public FunctionPass {
-  public:
-    static char ID;
-    HexagonRemoveExtendArgs() : FunctionPass(ID) {
-      initializeHexagonRemoveExtendArgsPass(*PassRegistry::getPassRegistry());
-    }
-    bool runOnFunction(Function &F) override;
-
-    const char *getPassName() const override {
-      return "Remove sign extends";
-    }
-
-    void getAnalysisUsage(AnalysisUsage &AU) const override {
-      AU.addRequired<MachineFunctionAnalysis>();
-      AU.addPreserved<MachineFunctionAnalysis>();
-      AU.addPreserved<StackProtector>();
-      FunctionPass::getAnalysisUsage(AU);
-    }
-  };
-}
-
-char HexagonRemoveExtendArgs::ID = 0;
-
-INITIALIZE_PASS(HexagonRemoveExtendArgs, "reargs",
-                "Remove Sign and Zero Extends for Args", false, false)
-
-bool HexagonRemoveExtendArgs::runOnFunction(Function &F) {
-  unsigned Idx = 1;
-  for (Function::arg_iterator AI = F.arg_begin(), AE = F.arg_end(); AI != AE;
-       ++AI, ++Idx) {
-    if (F.getAttributes().hasAttribute(Idx, Attribute::SExt)) {
-      Argument* Arg = AI;
-      if (!isa<PointerType>(Arg->getType())) {
-        for (auto UI = Arg->user_begin(); UI != Arg->user_end();) {
-          if (isa<SExtInst>(*UI)) {
-            Instruction* I = cast<Instruction>(*UI);
-            SExtInst* SI = new SExtInst(Arg, I->getType());
-            assert (EVT::getEVT(SI->getType()) ==
-                    (EVT::getEVT(I->getType())));
-            ++UI;
-            I->replaceAllUsesWith(SI);
-            Instruction* First = F.getEntryBlock().begin();
-            SI->insertBefore(First);
-            I->eraseFromParent();
-          } else {
-            ++UI;
-          }
-        }
-      }
-    }
-  }
-  return true;
-}
-
-
-
-FunctionPass*
-llvm::createHexagonRemoveExtendArgs(const HexagonTargetMachine &TM) {
-  return new HexagonRemoveExtendArgs();
-}

lib/Target/Hexagon/HexagonTargetMachine.cpp

@@ -98,7 +98,6 @@ namespace llvm {
   FunctionPass *createHexagonNewValueJump();
   FunctionPass *createHexagonPacketizer();
   FunctionPass *createHexagonPeephole();
-  FunctionPass *createHexagonRemoveExtendArgs(const HexagonTargetMachine &TM);
   FunctionPass *createHexagonSplitConst32AndConst64();
   FunctionPass *createHexagonStoreWidening();
 } // end namespace llvm;
@@ -209,9 +208,6 @@ bool HexagonPassConfig::addInstSelector() {
   HexagonTargetMachine &TM = getHexagonTargetMachine();
   bool NoOpt = (getOptLevel() == CodeGenOpt::None);
 
-  if (!NoOpt)
-    addPass(createHexagonRemoveExtendArgs(TM));
-
   addPass(createHexagonISelDag(TM, getOptLevel()));
 
   if (!NoOpt) {