1 files changed, 0 insertions, 119 deletions
diff --git a/llvm/lib/Target/AMDGPU/AMDGPUUnifyMetadata.cpp b/llvm/lib/Target/AMDGPU/AMDGPUUnifyMetadata.cpp
deleted file mode 100644
index e400491c3860..000000000000
--- a/llvm/lib/Target/AMDGPU/AMDGPUUnifyMetadata.cpp
+++ /dev/null
@@ -1,119 +0,0 @@
-//===- AMDGPUUnifyMetadata.cpp - Unify OpenCL metadata --------------------===//
-//
-// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
-// See https://llvm.org/LICENSE.txt for license information.
-// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
-//
-//===----------------------------------------------------------------------===//
-//
-// \file
-// This pass that unifies multiple OpenCL metadata due to linking.
-//
-//===----------------------------------------------------------------------===//
-
-#include "AMDGPU.h"
-#include "llvm/IR/Constants.h"
-#include "llvm/IR/Module.h"
-#include "llvm/IR/PassManager.h"
-#include "llvm/Pass.h"
-
-using namespace llvm;
-
-namespace {
-
-  namespace kOCLMD {
-
-    const char SpirVer[]            = "opencl.spir.version";
-    const char OCLVer[]             = "opencl.ocl.version";
-    const char UsedExt[]            = "opencl.used.extensions";
-    const char UsedOptCoreFeat[]    = "opencl.used.optional.core.features";
-    const char CompilerOptions[]    = "opencl.compiler.options";
-    const char LLVMIdent[]          = "llvm.ident";
-
-  } // end namespace kOCLMD
-
-    /// Unify version metadata.
-    /// \return true if changes are made.
-    /// Assume the named metadata has operands each of which is a pair of
-    /// integer constant, e.g.
-    /// !Name = {!n1, !n2}
-    /// !n1 = {i32 1, i32 2}
-    /// !n2 = {i32 2, i32 0}
-    /// Keep the largest version as the sole operand if PickFirst is false.
-    /// Otherwise pick it from the first value, representing kernel module.
-    bool unifyVersionMD(Module &M, StringRef Name, bool PickFirst) {
-      auto *NamedMD = M.getNamedMetadata(Name);
-      if (!NamedMD || NamedMD->getNumOperands() <= 1)
-        return false;
-      MDNode *MaxMD = nullptr;
-      auto MaxVer = 0U;
-      for (auto *VersionMD : NamedMD->operands()) {
-        assert(VersionMD->getNumOperands() == 2);
-        auto *CMajor = mdconst::extract<ConstantInt>(VersionMD->getOperand(0));
-        auto VersionMajor = CMajor->getZExtValue();
-        auto *CMinor = mdconst::extract<ConstantInt>(VersionMD->getOperand(1));
-        auto VersionMinor = CMinor->getZExtValue();
-        auto Ver = (VersionMajor * 100) + (VersionMinor * 10);
-        if (Ver > MaxVer) {
-          MaxVer = Ver;
-          MaxMD = VersionMD;
-        }
-        if (PickFirst)
-          break;
-      }
-      NamedMD->eraseFromParent();
-      NamedMD = M.getOrInsertNamedMetadata(Name);
-      NamedMD->addOperand(MaxMD);
-      return true;
-    }
-
-  /// Unify version metadata.
-  /// \return true if changes are made.
-  /// Assume the named metadata has operands each of which is a list e.g.
-  /// !Name = {!n1, !n2}
-  /// !n1 = !{!"cl_khr_fp16", {!"cl_khr_fp64"}}
-  /// !n2 = !{!"cl_khr_image"}
-  /// Combine it into a single list with unique operands.
-  bool unifyExtensionMD(Module &M, StringRef Name) {
-    auto *NamedMD = M.getNamedMetadata(Name);
-    if (!NamedMD || NamedMD->getNumOperands() == 1)
-      return false;
-
-    SmallVector<Metadata *, 4> All;
-    for (auto *MD : NamedMD->operands())
-      for (const auto &Op : MD->operands())
-        if (!llvm::is_contained(All, Op.get()))
-          All.push_back(Op.get());
-
-    NamedMD->eraseFromParent();
-    NamedMD = M.getOrInsertNamedMetadata(Name);
-    for (const auto &MD : All)
-      NamedMD->addOperand(MDNode::get(M.getContext(), MD));
-
-    return true;
-  }
-
-  /// Unify multiple OpenCL metadata due to linking.
-  bool unifyMetadataImpl(Module &M) {
-    const char *Vers[] = {kOCLMD::SpirVer, kOCLMD::OCLVer};
-    const char *Exts[] = {kOCLMD::UsedExt, kOCLMD::UsedOptCoreFeat,
-                          kOCLMD::CompilerOptions, kOCLMD::LLVMIdent};
-
-    bool Changed = false;
-
-    for (auto &I : Vers)
-      Changed |= unifyVersionMD(M, I, true);
-
-    for (auto &I : Exts)
-      Changed |= unifyExtensionMD(M, I);
-
-    return Changed;
-  }
-
-  } // end anonymous namespace
-
-  PreservedAnalyses AMDGPUUnifyMetadataPass::run(Module &M,
-                                                 ModuleAnalysisManager &AM) {
-    return unifyMetadataImpl(M) ? PreservedAnalyses::none()
-                                : PreservedAnalyses::all();
-  }