3 files changed, 112 insertions, 0 deletions
diff --git a/lib/Target/Mips/MCTargetDesc/CMakeLists.txt b/lib/Target/Mips/MCTargetDesc/CMakeLists.txt
index be5d7e4253..f5b0cca70d 100644
--- a/lib/Target/Mips/MCTargetDesc/CMakeLists.txt
+++ b/lib/Target/Mips/MCTargetDesc/CMakeLists.txt
@@ -5,6 +5,7 @@ add_llvm_library(LLVMMipsDesc
   MipsMCCodeEmitter.cpp
   MipsMCTargetDesc.cpp
   MipsELFObjectWriter.cpp
+  MipsReginfo.cpp
   )
 
 add_dependencies(LLVMMipsDesc MipsCommonTableGen)
diff --git a/lib/Target/Mips/MCTargetDesc/MipsReginfo.cpp b/lib/Target/Mips/MCTargetDesc/MipsReginfo.cpp
new file mode 100644
index 0000000000..1dc9bcb36a
--- /dev/null
+++ b/lib/Target/Mips/MCTargetDesc/MipsReginfo.cpp
@@ -0,0 +1,80 @@
+//===-- MipsReginfo.cpp - Registerinfo handling  --------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+// .reginfo
+//    Elf32_Word ri_gprmask
+//    Elf32_Word ri_cprmask[4]
+//    Elf32_Word ri_gp_value
+//
+// .MIPS.options - N64
+//    Elf64_Byte    kind (ODK_REGINFO)
+//    Elf64_Byte    size (40 bytes)
+//    Elf64_Section section (0)
+//    Elf64_Word    info (unused)
+//    Elf64_Word    ri_gprmask ()
+//    Elf64_Word    ri_pad ()
+//    Elf64_Word[4] ri_cprmask ()
+//    Elf64_Addr    ri_gp_value ()
+//
+// .MIPS.options - N32
+//    Elf32_Byte    kind (ODK_REGINFO)
+//    Elf32_Byte    size (36 bytes)
+//    Elf32_Section section (0)
+//    Elf32_Word    info (unused)
+//    Elf32_Word    ri_gprmask ()
+//    Elf32_Word    ri_pad ()
+//    Elf32_Word[4] ri_cprmask ()
+//    Elf32_Addr    ri_gp_value ()
+//
+//===----------------------------------------------------------------------===//
+#include "MCTargetDesc/MipsReginfo.h"
+#include "MipsSubtarget.h"
+#include "MipsTargetObjectFile.h"
+#include "llvm/MC/MCStreamer.h"
+
+using namespace llvm;
+
+// Integrated assembler version
+void
+MipsReginfo::emitMipsReginfoSectionCG(MCStreamer &OS,
+    const TargetLoweringObjectFile &TLOF,
+    const MipsSubtarget &MST) const
+{
+
+  if (OS.hasRawTextSupport())
+    return;
+
+  const MipsTargetObjectFile &TLOFELF =
+      static_cast<const MipsTargetObjectFile &>(TLOF);
+  OS.SwitchSection(TLOFELF.getReginfoSection());
+
+  // .reginfo
+  if (MST.isABI_O32()) {
+    OS.EmitIntValue(0, 4); // ri_gprmask
+    OS.EmitIntValue(0, 4); // ri_cpr[0]mask
+    OS.EmitIntValue(0, 4); // ri_cpr[1]mask
+    OS.EmitIntValue(0, 4); // ri_cpr[2]mask
+    OS.EmitIntValue(0, 4); // ri_cpr[3]mask
+    OS.EmitIntValue(0, 4); // ri_gp_value
+  }
+  // .MIPS.options
+  else if (MST.isABI_N64()) {
+    OS.EmitIntValue(1, 1); // kind
+    OS.EmitIntValue(40, 1); // size
+    OS.EmitIntValue(0, 2); // section
+    OS.EmitIntValue(0, 4); // info
+    OS.EmitIntValue(0, 4); // ri_gprmask
+    OS.EmitIntValue(0, 4); // pad
+    OS.EmitIntValue(0, 4); // ri_cpr[0]mask
+    OS.EmitIntValue(0, 4); // ri_cpr[1]mask
+    OS.EmitIntValue(0, 4); // ri_cpr[2]mask
+    OS.EmitIntValue(0, 4); // ri_cpr[3]mask
+    OS.EmitIntValue(0, 8); // ri_gp_value
+  }
+  else llvm_unreachable("Unsupported abi for reginfo");
+}
+
diff --git a/lib/Target/Mips/MCTargetDesc/MipsReginfo.h b/lib/Target/Mips/MCTargetDesc/MipsReginfo.h
new file mode 100644
index 0000000000..039b8eaaf2
--- /dev/null
+++ b/lib/Target/Mips/MCTargetDesc/MipsReginfo.h
@@ -0,0 +1,31 @@
+//=== MipsReginfo.h - MipsReginfo -----------------------------------------===//
+//
+//                    The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENCE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef MIPSREGINFO_H
+#define MIPSREGINFO_H
+
+namespace llvm {
+  class MCStreamer;
+  class TargetLoweringObjectFile;
+  class MipsSubtarget;
+
+  class MipsReginfo {
+    void anchor();
+  public:
+    MipsReginfo() {}
+
+    void emitMipsReginfoSectionCG(MCStreamer &OS,
+        const TargetLoweringObjectFile &TLOF,
+        const MipsSubtarget &MST) const;
+  };
+
+} // namespace llvm
+
+#endif
+