1 files changed, 0 insertions, 172 deletions
diff --git a/gnu/llvm/lib/CodeGen/AsmPrinter/DwarfCFIException.cpp b/gnu/llvm/lib/CodeGen/AsmPrinter/DwarfCFIException.cpp
deleted file mode 100644
index 1990456cc55..00000000000
--- a/gnu/llvm/lib/CodeGen/AsmPrinter/DwarfCFIException.cpp
+++ /dev/null
@@ -1,172 +0,0 @@
-//===-- CodeGen/AsmPrinter/DwarfException.cpp - Dwarf Exception Impl ------===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This file contains support for writing DWARF exception info into asm files.
-//
-//===----------------------------------------------------------------------===//
-
-#include "DwarfException.h"
-#include "llvm/ADT/Twine.h"
-#include "llvm/BinaryFormat/Dwarf.h"
-#include "llvm/CodeGen/AsmPrinter.h"
-#include "llvm/CodeGen/MachineFunction.h"
-#include "llvm/CodeGen/MachineModuleInfo.h"
-#include "llvm/IR/DataLayout.h"
-#include "llvm/IR/Mangler.h"
-#include "llvm/IR/Module.h"
-#include "llvm/MC/MCAsmInfo.h"
-#include "llvm/MC/MCContext.h"
-#include "llvm/MC/MCExpr.h"
-#include "llvm/MC/MCSection.h"
-#include "llvm/MC/MCStreamer.h"
-#include "llvm/MC/MCSymbol.h"
-#include "llvm/MC/MachineLocation.h"
-#include "llvm/Support/ErrorHandling.h"
-#include "llvm/Support/FormattedStream.h"
-#include "llvm/Target/TargetLoweringObjectFile.h"
-#include "llvm/Target/TargetOptions.h"
-using namespace llvm;
-
-DwarfCFIExceptionBase::DwarfCFIExceptionBase(AsmPrinter *A)
-    : EHStreamer(A), shouldEmitCFI(false), hasEmittedCFISections(false) {}
-
-void DwarfCFIExceptionBase::markFunctionEnd() {
-  endFragment();
-
-  // Map all labels and get rid of any dead landing pads.
-  if (!Asm->MF->getLandingPads().empty()) {
-    MachineFunction *NonConstMF = const_cast<MachineFunction*>(Asm->MF);
-    NonConstMF->tidyLandingPads();
-  }
-}
-
-void DwarfCFIExceptionBase::endFragment() {
-  if (shouldEmitCFI)
-    Asm->OutStreamer->EmitCFIEndProc();
-}
-
-DwarfCFIException::DwarfCFIException(AsmPrinter *A)
-    : DwarfCFIExceptionBase(A), shouldEmitPersonality(false),
-      forceEmitPersonality(false), shouldEmitLSDA(false),
-      shouldEmitMoves(false) {}
-
-DwarfCFIException::~DwarfCFIException() {}
-
-/// endModule - Emit all exception information that should come after the
-/// content.
-void DwarfCFIException::endModule() {
-  // SjLj uses this pass and it doesn't need this info.
-  if (!Asm->MAI->usesCFIForEH())
-    return;
-
-  const TargetLoweringObjectFile &TLOF = Asm->getObjFileLowering();
-
-  unsigned PerEncoding = TLOF.getPersonalityEncoding();
-
-  if ((PerEncoding & 0x80) != dwarf::DW_EH_PE_indirect)
-    return;
-
-  // Emit references to all used personality functions
-  for (const Function *Personality : MMI->getPersonalities()) {
-    if (!Personality)
-      continue;
-    MCSymbol *Sym = Asm->getSymbol(Personality);
-    TLOF.emitPersonalityValue(*Asm->OutStreamer, Asm->getDataLayout(), Sym);
-  }
-}
-
-static MCSymbol *getExceptionSym(AsmPrinter *Asm) {
-  return Asm->getCurExceptionSym();
-}
-
-void DwarfCFIException::beginFunction(const MachineFunction *MF) {
-  shouldEmitMoves = shouldEmitPersonality = shouldEmitLSDA = false;
-  const Function &F = MF->getFunction();
-
-  // If any landing pads survive, we need an EH table.
-  bool hasLandingPads = !MF->getLandingPads().empty();
-
-  // See if we need frame move info.
-  AsmPrinter::CFIMoveType MoveType = Asm->needsCFIMoves();
-
-  shouldEmitMoves = MoveType != AsmPrinter::CFI_M_None;
-
-  const TargetLoweringObjectFile &TLOF = Asm->getObjFileLowering();
-  unsigned PerEncoding = TLOF.getPersonalityEncoding();
-  const Function *Per = nullptr;
-  if (F.hasPersonalityFn())
-    Per = dyn_cast<Function>(F.getPersonalityFn()->stripPointerCasts());
-
-  // Emit a personality function even when there are no landing pads
-  forceEmitPersonality =
-      // ...if a personality function is explicitly specified
-      F.hasPersonalityFn() &&
-      // ... and it's not known to be a noop in the absence of invokes
-      !isNoOpWithoutInvoke(classifyEHPersonality(Per)) &&
-      // ... and we're not explicitly asked not to emit it
-      F.needsUnwindTableEntry();
-
-  shouldEmitPersonality =
-      (forceEmitPersonality ||
-       (hasLandingPads && PerEncoding != dwarf::DW_EH_PE_omit)) &&
-      Per;
-
-  unsigned LSDAEncoding = TLOF.getLSDAEncoding();
-  shouldEmitLSDA = shouldEmitPersonality &&
-    LSDAEncoding != dwarf::DW_EH_PE_omit;
-
-  shouldEmitCFI = MF->getMMI().getContext().getAsmInfo()->usesCFIForEH() &&
-                  (shouldEmitPersonality || shouldEmitMoves);
-  beginFragment(&*MF->begin(), getExceptionSym);
-}
-
-void DwarfCFIException::beginFragment(const MachineBasicBlock *MBB,
-                                      ExceptionSymbolProvider ESP) {
-  if (!shouldEmitCFI)
-    return;
-
-  if (!hasEmittedCFISections) {
-    if (Asm->needsOnlyDebugCFIMoves())
-      Asm->OutStreamer->EmitCFISections(false, true);
-    hasEmittedCFISections = true;
-  }
-
-  Asm->OutStreamer->EmitCFIStartProc(/*IsSimple=*/false);
-
-  // Indicate personality routine, if any.
-  if (!shouldEmitPersonality)
-    return;
-
-  auto &F = MBB->getParent()->getFunction();
-  auto *P = dyn_cast<Function>(F.getPersonalityFn()->stripPointerCasts());
-  assert(P && "Expected personality function");
-
-  // If we are forced to emit this personality, make sure to record
-  // it because it might not appear in any landingpad
-  if (forceEmitPersonality)
-    MMI->addPersonality(P);
-
-  const TargetLoweringObjectFile &TLOF = Asm->getObjFileLowering();
-  unsigned PerEncoding = TLOF.getPersonalityEncoding();
-  const MCSymbol *Sym = TLOF.getCFIPersonalitySymbol(P, Asm->TM, MMI);
-  Asm->OutStreamer->EmitCFIPersonality(Sym, PerEncoding);
-
-  // Provide LSDA information.
-  if (shouldEmitLSDA)
-    Asm->OutStreamer->EmitCFILsda(ESP(Asm), TLOF.getLSDAEncoding());
-}
-
-/// endFunction - Gather and emit post-function exception information.
-///
-void DwarfCFIException::endFunction(const MachineFunction *MF) {
-  if (!shouldEmitPersonality)
-    return;
-
-  emitExceptionTable();
-}