Enables llvm dyn_cast for Assemblers.

src/IceAssemblerMIPS32.h

 //===- subzero/src/assembler_mips.h - Assembler for MIPS --------*- C++ -*-===//

[Jim Stichnoth, 2015/06/27 13:52:19]

Update the filename.

BTW, Reed was doing this rename as part of
https://codereview.chromium.org/1176133004/ , but given that he's away for a few
weeks, this will be a drop in the bucket of rebase changes for him. :(

[John, 2015/06/29 14:56:02]

Yeah, I thought about not renaming the file, but it seemed harmless enough. I am
sorry I caused him more pain. :(

 //
 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 //
 // Modified by the Subzero authors.
 //
 //===----------------------------------------------------------------------===//
 //
 //                        The Subzero Code Generator
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 //
 // This file implements the Assembler class for MIPS32.
 //
 //===----------------------------------------------------------------------===//
 
 #ifndef SUBZERO_SRC_ASSEMBLER_MIPS32_H

[Jim Stichnoth, 2015/06/27 13:52:20]

Update the guard to the new filename

[John, 2015/06/29 14:56:02]

Done.

 #define SUBZERO_SRC_ASSEMBLER_MIPS32_H
 
 #include "IceAssembler.h"
 #include "IceDefs.h"
 #include "IceFixups.h"
 
 namespace Ice {
 namespace MIPS32 {
 
 class AssemblerMIPS32 : public Assembler {
   AssemblerMIPS32(const AssemblerMIPS32 &) = delete;
   AssemblerMIPS32 &operator=(const AssemblerMIPS32 &) = delete;
 
 public:
-  explicit AssemblerMIPS32(bool use_far_branches = false) : Assembler() {
+  explicit AssemblerMIPS32(bool use_far_branches = false)
+      : Assembler(Asm_MIPS32) {
     // This mode is only needed and implemented for MIPS32 and ARM.
     assert(!use_far_branches);
     (void)use_far_branches;
   }
   ~AssemblerMIPS32() override = default;
 
   void alignFunction() override {
     llvm::report_fatal_error("Not yet implemented.");
   }
 
@@ skipping 12 matching lines @@
 
   void bindCfgNodeLabel(SizeT NodeNumber) override {
     (void)NodeNumber;
     llvm::report_fatal_error("Not yet implemented.");
   }
 
   bool fixupIsPCRel(FixupKind Kind) const override {
     (void)Kind;
     llvm::report_fatal_error("Not yet implemented.");
   }
+
+  static bool classof(const Assembler *Asm) {
+    return Asm->getKind() == Asm_ARM32;

[Jim Stichnoth, 2015/06/27 13:52:19]

Asm_MIPS32

[John, 2015/06/29 14:56:02]

Done.

+  }
 };
 
 } // end of namespace MIPS32
 } // end of namespace Ice
 
 #endif // SUBZERO_SRC_ASSEMBLER_MIPS32_H