Imported Upstream version 5.18.0.167

Former-commit-id: 289509151e0fee68a1b591a20c9f109c3c789d3a

external/llvm/lib/Target/NVPTX/NVPTXAssignValidGlobalNames.cpp

@@ -1,90 +0,0 @@
-//===-- NVPTXAssignValidGlobalNames.cpp - Assign valid names to globals ---===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// Clean up the names of global variables in the module to not contain symbols
-// that are invalid in PTX.
-//
-// Currently NVPTX, like other backends, relies on generic symbol name
-// sanitizing done by MC. However, the ptxas assembler is more stringent and
-// disallows some additional characters in symbol names. This pass makes sure
-// such names do not reach MC at all.
-//
-//===----------------------------------------------------------------------===//
-
-#include "NVPTX.h"
-#include "llvm/IR/Function.h"
-#include "llvm/IR/GlobalVariable.h"
-#include "llvm/IR/LegacyPassManager.h"
-#include "llvm/IR/Module.h"
-#include "llvm/Support/raw_ostream.h"
-#include <string>
-
-using namespace llvm;
-
-namespace {
-/// \brief NVPTXAssignValidGlobalNames
-class NVPTXAssignValidGlobalNames : public ModulePass {
-public:
-  static char ID;
-  NVPTXAssignValidGlobalNames() : ModulePass(ID) {}
-
-  bool runOnModule(Module &M) override;
-
-  /// \brief Clean up the name to remove symbols invalid in PTX.
-  std::string cleanUpName(StringRef Name);
-};
-}
-
-char NVPTXAssignValidGlobalNames::ID = 0;
-
-namespace llvm {
-void initializeNVPTXAssignValidGlobalNamesPass(PassRegistry &);
-}
-
-INITIALIZE_PASS(NVPTXAssignValidGlobalNames, "nvptx-assign-valid-global-names",
-                "Assign valid PTX names to globals", false, false)
-
-bool NVPTXAssignValidGlobalNames::runOnModule(Module &M) {
-  for (GlobalVariable &GV : M.globals()) {
-    // We are only allowed to rename local symbols.
-    if (GV.hasLocalLinkage()) {
-      // setName doesn't do extra work if the name does not change.
-      // Note: this does not create collisions - if setName is asked to set the
-      // name to something that already exists, it adds a proper postfix to
-      // avoid collisions.
-      GV.setName(cleanUpName(GV.getName()));
-    }
-  }
-
-  // Do the same for local functions.
-  for (Function &F : M.functions())
-    if (F.hasLocalLinkage())
-      F.setName(cleanUpName(F.getName()));
-
-  return true;
-}
-
-std::string NVPTXAssignValidGlobalNames::cleanUpName(StringRef Name) {
-  std::string ValidName;
-  raw_string_ostream ValidNameStream(ValidName);
-  for (unsigned I = 0, E = Name.size(); I != E; ++I) {
-    char C = Name[I];
-    if (C == '.' || C == '@') {
-      ValidNameStream << "_$_";
-    } else {
-      ValidNameStream << C;
-    }
-  }
-
-  return ValidNameStream.str();
-}
-
-ModulePass *llvm::createNVPTXAssignValidGlobalNamesPass() {
-  return new NVPTXAssignValidGlobalNames();
-}