1 files changed, 0 insertions, 136 deletions
diff --git a/lib/Target/NVPTX/NVPTXLowerStructArgs.cpp b/lib/Target/NVPTX/NVPTXLowerStructArgs.cpp
deleted file mode 100644
index 68dfbb7..0000000
--- a/lib/Target/NVPTX/NVPTXLowerStructArgs.cpp
+++ /dev/null
@@ -1,136 +0,0 @@
-//===-- NVPTXLowerStructArgs.cpp - Copy struct args to local memory =====--===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// Copy struct args to local memory. This is needed for kernel functions only.
-// This is a preparation for handling cases like
-//
-// kernel void foo(struct A arg, ...)
-// {
-//     struct A *p = &arg;
-//     ...
-//     ... = p->filed1 ...  (this is no generic address for .param)
-//     p->filed2 = ...      (this is no write access to .param)
-// }
-//
-//===----------------------------------------------------------------------===//
-
-#include "NVPTX.h"
-#include "NVPTXUtilities.h"
-#include "llvm/IR/Function.h"
-#include "llvm/IR/Instructions.h"
-#include "llvm/IR/IntrinsicInst.h"
-#include "llvm/IR/Module.h"
-#include "llvm/IR/Type.h"
-#include "llvm/Pass.h"
-
-using namespace llvm;
-
-namespace llvm {
-void initializeNVPTXLowerStructArgsPass(PassRegistry &);
-}
-
-namespace {
-class NVPTXLowerStructArgs : public FunctionPass {
-  bool runOnFunction(Function &F) override;
-
-  void handleStructPtrArgs(Function &);
-  void handleParam(Argument *);
-
-public:
-  static char ID; // Pass identification, replacement for typeid
-  NVPTXLowerStructArgs() : FunctionPass(ID) {}
-  const char *getPassName() const override {
-    return "Copy structure (byval *) arguments to stack";
-  }
-};
-} // namespace
-
-char NVPTXLowerStructArgs::ID = 1;
-
-INITIALIZE_PASS(NVPTXLowerStructArgs, "nvptx-lower-struct-args",
-                "Lower structure arguments (NVPTX)", false, false)
-
-void NVPTXLowerStructArgs::handleParam(Argument *Arg) {
-  Function *Func = Arg->getParent();
-  Instruction *FirstInst = &(Func->getEntryBlock().front());
-  PointerType *PType = dyn_cast<PointerType>(Arg->getType());
-
-  assert(PType && "Expecting pointer type in handleParam");
-
-  Type *StructType = PType->getElementType();
-  AllocaInst *AllocA = new AllocaInst(StructType, Arg->getName(), FirstInst);
-
-  /* Set the alignment to alignment of the byval parameter. This is because,
-   * later load/stores assume that alignment, and we are going to replace
-   * the use of the byval parameter with this alloca instruction.
-   */
-  AllocA->setAlignment(Func->getParamAlignment(Arg->getArgNo() + 1));
-
-  Arg->replaceAllUsesWith(AllocA);
-
-  // Get the cvt.gen.to.param intrinsic
-  Type *CvtTypes[] = {
-      Type::getInt8PtrTy(Func->getParent()->getContext(), ADDRESS_SPACE_PARAM),
-      Type::getInt8PtrTy(Func->getParent()->getContext(),
-                         ADDRESS_SPACE_GENERIC)};
-  Function *CvtFunc = Intrinsic::getDeclaration(
-      Func->getParent(), Intrinsic::nvvm_ptr_gen_to_param, CvtTypes);
-
-  Value *BitcastArgs[] = {
-      new BitCastInst(Arg, Type::getInt8PtrTy(Func->getParent()->getContext(),
-                                              ADDRESS_SPACE_GENERIC),
-                      Arg->getName(), FirstInst)};
-  CallInst *CallCVT =
-      CallInst::Create(CvtFunc, BitcastArgs, "cvt_to_param", FirstInst);
-
-  BitCastInst *BitCast = new BitCastInst(
-      CallCVT, PointerType::get(StructType, ADDRESS_SPACE_PARAM),
-      Arg->getName(), FirstInst);
-  LoadInst *LI = new LoadInst(BitCast, Arg->getName(), FirstInst);
-  new StoreInst(LI, AllocA, FirstInst);
-}
-
-// =============================================================================
-// If the function had a struct ptr arg, say foo(%struct.x *byval %d), then
-// add the following instructions to the first basic block :
-//
-// %temp = alloca %struct.x, align 8
-// %tt1 = bitcast %struct.x * %d to i8 *
-// %tt2 = llvm.nvvm.cvt.gen.to.param %tt2
-// %tempd = bitcast i8 addrspace(101) * to %struct.x addrspace(101) *
-// %tv = load %struct.x addrspace(101) * %tempd
-// store %struct.x %tv, %struct.x * %temp, align 8
-//
-// The above code allocates some space in the stack and copies the incoming
-// struct from param space to local space.
-// Then replace all occurences of %d by %temp.
-// =============================================================================
-void NVPTXLowerStructArgs::handleStructPtrArgs(Function &F) {
-  for (Argument &Arg : F.args()) {
-    if (Arg.getType()->isPointerTy() && Arg.hasByValAttr()) {
-      handleParam(&Arg);
-    }
-  }
-}
-
-// =============================================================================
-// Main function for this pass.
-// =============================================================================
-bool NVPTXLowerStructArgs::runOnFunction(Function &F) {
-  // Skip non-kernels. See the comments at the top of this file.
-  if (!isKernelFunction(F))
-    return false;
-
-  handleStructPtrArgs(F);
-  return true;
-}
-
-FunctionPass *llvm::createNVPTXLowerStructArgsPass() {
-  return new NVPTXLowerStructArgs();
-}