1 files changed, 0 insertions, 186 deletions

diff --git a/contrib/llvm/lib/CodeGen/AsmPrinter/OcamlGCPrinter.cpp b/contrib/llvm/lib/CodeGen/AsmPrinter/OcamlGCPrinter.cpp
deleted file mode 100644
index 3145cc90dc73..000000000000
--- a/contrib/llvm/lib/CodeGen/AsmPrinter/OcamlGCPrinter.cpp
+++ /dev/null
@@ -1,186 +0,0 @@
-//===- OcamlGCPrinter.cpp - Ocaml frametable emitter ----------------------===//
-//
-// 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
-//
-//===----------------------------------------------------------------------===//
-//
-// This file implements printing the assembly code for an Ocaml frametable.
-//
-//===----------------------------------------------------------------------===//
-
-#include "llvm/ADT/STLExtras.h"
-#include "llvm/ADT/SmallString.h"
-#include "llvm/ADT/Twine.h"
-#include "llvm/CodeGen/AsmPrinter.h"
-#include "llvm/CodeGen/BuiltinGCs.h"
-#include "llvm/CodeGen/GCMetadata.h"
-#include "llvm/CodeGen/GCMetadataPrinter.h"
-#include "llvm/IR/DataLayout.h"
-#include "llvm/IR/Function.h"
-#include "llvm/IR/Mangler.h"
-#include "llvm/IR/Module.h"
-#include "llvm/MC/MCContext.h"
-#include "llvm/MC/MCDirectives.h"
-#include "llvm/MC/MCStreamer.h"
-#include "llvm/Support/ErrorHandling.h"
-#include "llvm/Target/TargetLoweringObjectFile.h"
-#include <cctype>
-#include <cstddef>
-#include <cstdint>
-#include <string>
-
-using namespace llvm;
-
-namespace {
-
-class OcamlGCMetadataPrinter : public GCMetadataPrinter {
-public:
-  void beginAssembly(Module &M, GCModuleInfo &Info, AsmPrinter &AP) override;
-  void finishAssembly(Module &M, GCModuleInfo &Info, AsmPrinter &AP) override;
-};
-
-} // end anonymous namespace
-
-static GCMetadataPrinterRegistry::Add<OcamlGCMetadataPrinter>
-    Y("ocaml", "ocaml 3.10-compatible collector");
-
-void llvm::linkOcamlGCPrinter() {}
-
-static void EmitCamlGlobal(const Module &M, AsmPrinter &AP, const char *Id) {
-  const std::string &MId = M.getModuleIdentifier();
-
-  std::string SymName;
-  SymName += "caml";
-  size_t Letter = SymName.size();
-  SymName.append(MId.begin(), llvm::find(MId, '.'));
-  SymName += "__";
-  SymName += Id;
-
-  // Capitalize the first letter of the module name.
-  SymName[Letter] = toupper(SymName[Letter]);
-
-  SmallString<128> TmpStr;
-  Mangler::getNameWithPrefix(TmpStr, SymName, M.getDataLayout());
-
-  MCSymbol *Sym = AP.OutContext.getOrCreateSymbol(TmpStr);
-
-  AP.OutStreamer->EmitSymbolAttribute(Sym, MCSA_Global);
-  AP.OutStreamer->EmitLabel(Sym);
-}
-
-void OcamlGCMetadataPrinter::beginAssembly(Module &M, GCModuleInfo &Info,
-                                           AsmPrinter &AP) {
-  AP.OutStreamer->SwitchSection(AP.getObjFileLowering().getTextSection());
-  EmitCamlGlobal(M, AP, "code_begin");
-
-  AP.OutStreamer->SwitchSection(AP.getObjFileLowering().getDataSection());
-  EmitCamlGlobal(M, AP, "data_begin");
-}
-
-/// emitAssembly - Print the frametable. The ocaml frametable format is thus:
-///
-///   extern "C" struct align(sizeof(intptr_t)) {
-///     uint16_t NumDescriptors;
-///     struct align(sizeof(intptr_t)) {
-///       void *ReturnAddress;
-///       uint16_t FrameSize;
-///       uint16_t NumLiveOffsets;
-///       uint16_t LiveOffsets[NumLiveOffsets];
-///     } Descriptors[NumDescriptors];
-///   } caml${module}__frametable;
-///
-/// Note that this precludes programs from stack frames larger than 64K
-/// (FrameSize and LiveOffsets would overflow). FrameTablePrinter will abort if
-/// either condition is detected in a function which uses the GC.
-///
-void OcamlGCMetadataPrinter::finishAssembly(Module &M, GCModuleInfo &Info,
-                                            AsmPrinter &AP) {
-  unsigned IntPtrSize = M.getDataLayout().getPointerSize();
-
-  AP.OutStreamer->SwitchSection(AP.getObjFileLowering().getTextSection());
-  EmitCamlGlobal(M, AP, "code_end");
-
-  AP.OutStreamer->SwitchSection(AP.getObjFileLowering().getDataSection());
-  EmitCamlGlobal(M, AP, "data_end");
-
-  // FIXME: Why does ocaml emit this??
-  AP.OutStreamer->EmitIntValue(0, IntPtrSize);
-
-  AP.OutStreamer->SwitchSection(AP.getObjFileLowering().getDataSection());
-  EmitCamlGlobal(M, AP, "frametable");
-
-  int NumDescriptors = 0;
-  for (GCModuleInfo::FuncInfoVec::iterator I = Info.funcinfo_begin(),
-                                           IE = Info.funcinfo_end();
-       I != IE; ++I) {
-    GCFunctionInfo &FI = **I;
-    if (FI.getStrategy().getName() != getStrategy().getName())
-      // this function is managed by some other GC
-      continue;
-    for (GCFunctionInfo::iterator J = FI.begin(), JE = FI.end(); J != JE; ++J) {
-      NumDescriptors++;
-    }
-  }
-
-  if (NumDescriptors >= 1 << 16) {
-    // Very rude!
-    report_fatal_error(" Too much descriptor for ocaml GC");
-  }
-  AP.emitInt16(NumDescriptors);
-  AP.EmitAlignment(IntPtrSize == 4 ? 2 : 3);
-
-  for (GCModuleInfo::FuncInfoVec::iterator I = Info.funcinfo_begin(),
-                                           IE = Info.funcinfo_end();
-       I != IE; ++I) {
-    GCFunctionInfo &FI = **I;
-    if (FI.getStrategy().getName() != getStrategy().getName())
-      // this function is managed by some other GC
-      continue;
-
-    uint64_t FrameSize = FI.getFrameSize();
-    if (FrameSize >= 1 << 16) {
-      // Very rude!
-      report_fatal_error("Function '" + FI.getFunction().getName() +
-                         "' is too large for the ocaml GC! "
-                         "Frame size " +
-                         Twine(FrameSize) + ">= 65536.\n"
-                                            "(" +
-                         Twine(uintptr_t(&FI)) + ")");
-    }
-
-    AP.OutStreamer->AddComment("live roots for " +
-                               Twine(FI.getFunction().getName()));
-    AP.OutStreamer->AddBlankLine();
-
-    for (GCFunctionInfo::iterator J = FI.begin(), JE = FI.end(); J != JE; ++J) {
-      size_t LiveCount = FI.live_size(J);
-      if (LiveCount >= 1 << 16) {
-        // Very rude!
-        report_fatal_error("Function '" + FI.getFunction().getName() +
-                           "' is too large for the ocaml GC! "
-                           "Live root count " +
-                           Twine(LiveCount) + " >= 65536.");
-      }
-
-      AP.OutStreamer->EmitSymbolValue(J->Label, IntPtrSize);
-      AP.emitInt16(FrameSize);
-      AP.emitInt16(LiveCount);
-
-      for (GCFunctionInfo::live_iterator K = FI.live_begin(J),
-                                         KE = FI.live_end(J);
-           K != KE; ++K) {
-        if (K->StackOffset >= 1 << 16) {
-          // Very rude!
-          report_fatal_error(
-              "GC root stack offset is outside of fixed stack frame and out "
-              "of range for ocaml GC!");
-        }
-        AP.emitInt16(K->StackOffset);
-      }
-
-      AP.EmitAlignment(IntPtrSize == 4 ? 2 : 3);
-    }
-  }
-}