Remove LLVM 8.0.1 files.

1 files changed, 0 insertions, 179 deletions

diff --git a/gnu/llvm/lib/Target/NVPTX/NVPTXImageOptimizer.cpp b/gnu/llvm/lib/Target/NVPTX/NVPTXImageOptimizer.cpp
deleted file mode 100644
index ad1d7cbb52f..00000000000
--- a/gnu/llvm/lib/Target/NVPTX/NVPTXImageOptimizer.cpp
+++ /dev/null
@@ -1,179 +0,0 @@
-//===-- NVPTXImageOptimizer.cpp - Image optimization pass -----------------===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This pass implements IR-level optimizations of image access code,
-// including:
-//
-// 1. Eliminate istypep intrinsics when image access qualifier is known
-//
-//===----------------------------------------------------------------------===//
-
-#include "NVPTX.h"
-#include "NVPTXUtilities.h"
-#include "llvm/Analysis/ConstantFolding.h"
-#include "llvm/IR/Instructions.h"
-#include "llvm/IR/Intrinsics.h"
-#include "llvm/IR/Module.h"
-#include "llvm/Pass.h"
-
-using namespace llvm;
-
-namespace {
-class NVPTXImageOptimizer : public FunctionPass {
-private:
-  static char ID;
-  SmallVector<Instruction*, 4> InstrToDelete;
-
-public:
-  NVPTXImageOptimizer();
-
-  bool runOnFunction(Function &F) override;
-
-private:
-  bool replaceIsTypePSampler(Instruction &I);
-  bool replaceIsTypePSurface(Instruction &I);
-  bool replaceIsTypePTexture(Instruction &I);
-  Value *cleanupValue(Value *V);
-  void replaceWith(Instruction *From, ConstantInt *To);
-};
-}
-
-char NVPTXImageOptimizer::ID = 0;
-
-NVPTXImageOptimizer::NVPTXImageOptimizer()
-  : FunctionPass(ID) {}
-
-bool NVPTXImageOptimizer::runOnFunction(Function &F) {
-  if (skipFunction(F))
-    return false;
-
-  bool Changed = false;
-  InstrToDelete.clear();
-
-  // Look for call instructions in the function
-  for (Function::iterator BI = F.begin(), BE = F.end(); BI != BE;
-       ++BI) {
-    for (BasicBlock::iterator I = (*BI).begin(), E = (*BI).end();
-         I != E; ++I) {
-      Instruction &Instr = *I;
-      if (CallInst *CI = dyn_cast<CallInst>(I)) {
-        Function *CalledF = CI->getCalledFunction();
-        if (CalledF && CalledF->isIntrinsic()) {
-          // This is an intrinsic function call, check if its an istypep
-          switch (CalledF->getIntrinsicID()) {
-          default: break;
-          case Intrinsic::nvvm_istypep_sampler:
-            Changed |= replaceIsTypePSampler(Instr);
-            break;
-          case Intrinsic::nvvm_istypep_surface:
-            Changed |= replaceIsTypePSurface(Instr);
-            break;
-          case Intrinsic::nvvm_istypep_texture:
-            Changed |= replaceIsTypePTexture(Instr);
-            break;
-          }
-        }
-      }
-    }
-  }
-
-  // Delete any istypep instances we replaced in the IR
-  for (unsigned i = 0, e = InstrToDelete.size(); i != e; ++i)
-    InstrToDelete[i]->eraseFromParent();
-
-  return Changed;
-}
-
-bool NVPTXImageOptimizer::replaceIsTypePSampler(Instruction &I) {
-  Value *TexHandle = cleanupValue(I.getOperand(0));
-  if (isSampler(*TexHandle)) {
-    // This is an OpenCL sampler, so it must be a samplerref
-    replaceWith(&I, ConstantInt::getTrue(I.getContext()));
-    return true;
-  } else if (isImage(*TexHandle)) {
-    // This is an OpenCL image, so it cannot be a samplerref
-    replaceWith(&I, ConstantInt::getFalse(I.getContext()));
-    return true;
-  } else {
-    // The image type is unknown, so we cannot eliminate the intrinsic
-    return false;
-  }
-}
-
-bool NVPTXImageOptimizer::replaceIsTypePSurface(Instruction &I) {
-  Value *TexHandle = cleanupValue(I.getOperand(0));
-  if (isImageReadWrite(*TexHandle) ||
-      isImageWriteOnly(*TexHandle)) {
-    // This is an OpenCL read-only/read-write image, so it must be a surfref
-    replaceWith(&I, ConstantInt::getTrue(I.getContext()));
-    return true;
-  } else if (isImageReadOnly(*TexHandle) ||
-             isSampler(*TexHandle)) {
-    // This is an OpenCL read-only/ imageor sampler, so it cannot be
-    // a surfref
-    replaceWith(&I, ConstantInt::getFalse(I.getContext()));
-    return true;
-  } else {
-    // The image type is unknown, so we cannot eliminate the intrinsic
-    return false;
-  }
-}
-
-bool NVPTXImageOptimizer::replaceIsTypePTexture(Instruction &I) {
-  Value *TexHandle = cleanupValue(I.getOperand(0));
-  if (isImageReadOnly(*TexHandle)) {
-    // This is an OpenCL read-only image, so it must be a texref
-    replaceWith(&I, ConstantInt::getTrue(I.getContext()));
-    return true;
-  } else if (isImageWriteOnly(*TexHandle) ||
-             isImageReadWrite(*TexHandle) ||
-             isSampler(*TexHandle)) {
-    // This is an OpenCL read-write/write-only image or a sampler, so it
-    // cannot be a texref
-    replaceWith(&I, ConstantInt::getFalse(I.getContext()));
-    return true;
-  } else {
-    // The image type is unknown, so we cannot eliminate the intrinsic
-    return false;
-  }
-}
-
-void NVPTXImageOptimizer::replaceWith(Instruction *From, ConstantInt *To) {
-  // We implement "poor man's DCE" here to make sure any code that is no longer
-  // live is actually unreachable and can be trivially eliminated by the
-  // unreachable block elimination pass.
-  for (CallInst::use_iterator UI = From->use_begin(), UE = From->use_end();
-       UI != UE; ++UI) {
-    if (BranchInst *BI = dyn_cast<BranchInst>(*UI)) {
-      if (BI->isUnconditional()) continue;
-      BasicBlock *Dest;
-      if (To->isZero())
-        // Get false block
-        Dest = BI->getSuccessor(1);
-      else
-        // Get true block
-        Dest = BI->getSuccessor(0);
-      BranchInst::Create(Dest, BI);
-      InstrToDelete.push_back(BI);
-    }
-  }
-  From->replaceAllUsesWith(To);
-  InstrToDelete.push_back(From);
-}
-
-Value *NVPTXImageOptimizer::cleanupValue(Value *V) {
-  if (ExtractValueInst *EVI = dyn_cast<ExtractValueInst>(V)) {
-    return cleanupValue(EVI->getAggregateOperand());
-  }
-  return V;
-}
-
-FunctionPass *llvm::createNVPTXImageOptimizerPass() {
-  return new NVPTXImageOptimizer();
-}