1 files changed, 0 insertions, 121 deletions
diff --git a/contrib/llvm/lib/CodeGen/AsmPrinter/ErlangGCPrinter.cpp b/contrib/llvm/lib/CodeGen/AsmPrinter/ErlangGCPrinter.cpp
deleted file mode 100644
index 39392b79e960..000000000000
--- a/contrib/llvm/lib/CodeGen/AsmPrinter/ErlangGCPrinter.cpp
+++ /dev/null
@@ -1,121 +0,0 @@
-//===- ErlangGCPrinter.cpp - Erlang/OTP 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 the compiler plugin that is used in order to emit
-// garbage collection information in a convenient layout for parsing and
-// loading in the Erlang/OTP runtime.
-//
-//===----------------------------------------------------------------------===//
-
-#include "llvm/BinaryFormat/ELF.h"
-#include "llvm/CodeGen/AsmPrinter.h"
-#include "llvm/CodeGen/BuiltinGCs.h"
-#include "llvm/CodeGen/GCMetadata.h"
-#include "llvm/CodeGen/GCMetadataPrinter.h"
-#include "llvm/CodeGen/GCStrategy.h"
-#include "llvm/IR/DataLayout.h"
-#include "llvm/IR/Function.h"
-#include "llvm/IR/Module.h"
-#include "llvm/MC/MCContext.h"
-#include "llvm/MC/MCSectionELF.h"
-#include "llvm/MC/MCStreamer.h"
-#include "llvm/MC/MCSymbol.h"
-#include "llvm/Target/TargetLoweringObjectFile.h"
-
-using namespace llvm;
-
-namespace {
-
-class ErlangGCPrinter : public GCMetadataPrinter {
-public:
-  void finishAssembly(Module &M, GCModuleInfo &Info, AsmPrinter &AP) override;
-};
-
-} // end anonymous namespace
-
-static GCMetadataPrinterRegistry::Add<ErlangGCPrinter>
-    X("erlang", "erlang-compatible garbage collector");
-
-void ErlangGCPrinter::finishAssembly(Module &M, GCModuleInfo &Info,
-                                     AsmPrinter &AP) {
-  MCStreamer &OS = *AP.OutStreamer;
-  unsigned IntPtrSize = M.getDataLayout().getPointerSize();
-
-  // Put this in a custom .note section.
-  OS.SwitchSection(
-      AP.getObjFileLowering().getContext().getELFSection(".note.gc",
-                                                         ELF::SHT_PROGBITS, 0));
-
-  // For each function...
-  for (GCModuleInfo::FuncInfoVec::iterator FI = Info.funcinfo_begin(),
-                                           IE = Info.funcinfo_end();
-       FI != IE; ++FI) {
-    GCFunctionInfo &MD = **FI;
-    if (MD.getStrategy().getName() != getStrategy().getName())
-      // this function is managed by some other GC
-      continue;
-    /** A compact GC layout. Emit this data structure:
-     *
-     * struct {
-     *   int16_t PointCount;
-     *   void *SafePointAddress[PointCount];
-     *   int16_t StackFrameSize; (in words)
-     *   int16_t StackArity;
-     *   int16_t LiveCount;
-     *   int16_t LiveOffsets[LiveCount];
-     * } __gcmap_<FUNCTIONNAME>;
-     **/
-
-    // Align to address width.
-    AP.EmitAlignment(IntPtrSize == 4 ? 2 : 3);
-
-    // Emit PointCount.
-    OS.AddComment("safe point count");
-    AP.emitInt16(MD.size());
-
-    // And each safe point...
-    for (GCFunctionInfo::iterator PI = MD.begin(), PE = MD.end(); PI != PE;
-         ++PI) {
-      // Emit the address of the safe point.
-      OS.AddComment("safe point address");
-      MCSymbol *Label = PI->Label;
-      AP.EmitLabelPlusOffset(Label /*Hi*/, 0 /*Offset*/, 4 /*Size*/);
-    }
-
-    // Stack information never change in safe points! Only print info from the
-    // first call-site.
-    GCFunctionInfo::iterator PI = MD.begin();
-
-    // Emit the stack frame size.
-    OS.AddComment("stack frame size (in words)");
-    AP.emitInt16(MD.getFrameSize() / IntPtrSize);
-
-    // Emit stack arity, i.e. the number of stacked arguments.
-    unsigned RegisteredArgs = IntPtrSize == 4 ? 5 : 6;
-    unsigned StackArity = MD.getFunction().arg_size() > RegisteredArgs
-                              ? MD.getFunction().arg_size() - RegisteredArgs
-                              : 0;
-    OS.AddComment("stack arity");
-    AP.emitInt16(StackArity);
-
-    // Emit the number of live roots in the function.
-    OS.AddComment("live root count");
-    AP.emitInt16(MD.live_size(PI));
-
-    // And for each live root...
-    for (GCFunctionInfo::live_iterator LI = MD.live_begin(PI),
-                                       LE = MD.live_end(PI);
-         LI != LE; ++LI) {
-      // Emit live root's offset within the stack frame.
-      OS.AddComment("stack index (offset / wordsize)");
-      AP.emitInt16(LI->StackOffset / IntPtrSize);
-    }
-  }
-}
-
-void llvm::linkErlangGCPrinter() {}