Use the space freed up by sparc and zaurus to import LLVM.

ok hackroom@

1 files changed, 46 insertions, 0 deletions

diff --git a/gnu/llvm/lib/CodeGen/ErlangGC.cpp b/gnu/llvm/lib/CodeGen/ErlangGC.cpp
new file mode 100644
index 00000000000..024946d1436
--- /dev/null
+++ b/gnu/llvm/lib/CodeGen/ErlangGC.cpp
@@ -0,0 +1,46 @@
+//===-- ErlangGC.cpp - Erlang/OTP GC strategy -------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file implements the Erlang/OTP runtime-compatible garbage collector
+// (e.g. defines safe points, root initialization etc.)
+//
+// The frametable emitter is in ErlangGCPrinter.cpp.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/CodeGen/GCs.h"
+#include "llvm/CodeGen/GCStrategy.h"
+#include "llvm/CodeGen/MachineInstrBuilder.h"
+#include "llvm/MC/MCContext.h"
+#include "llvm/MC/MCSymbol.h"
+#include "llvm/Target/TargetInstrInfo.h"
+#include "llvm/Target/TargetMachine.h"
+#include "llvm/Target/TargetSubtargetInfo.h"
+
+using namespace llvm;
+
+namespace {
+
+class ErlangGC : public GCStrategy {
+public:
+  ErlangGC();
+};
+}
+
+static GCRegistry::Add<ErlangGC> X("erlang",
+                                   "erlang-compatible garbage collector");
+
+void llvm::linkErlangGC() {}
+
+ErlangGC::ErlangGC() {
+  InitRoots = false;
+  NeededSafePoints = 1 << GC::PostCall;
+  UsesMetadata = true;
+  CustomRoots = false;
+}