Initial Mips support, here we go! =)

- Modifications from the last patch included
  (issues pointed by Evan Cheng are now fixed).
- Added more MipsI instructions.
- Added more patterns to match branch instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37461 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 26 insertions, 0 deletions

diff --git a/lib/Target/Mips/MipsSubtarget.cpp b/lib/Target/Mips/MipsSubtarget.cpp
new file mode 100644
index 0000000000..a394f774ab
--- /dev/null
+++ b/lib/Target/Mips/MipsSubtarget.cpp
@@ -0,0 +1,26 @@
+//===- MipsSubtarget.cpp - Mips Subtarget Information -----------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file was developed by Bruno Cardoso Lopes and is distributed under the 
+// University of Illinois Open Source License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file implements the Mips specific subclass of TargetSubtarget.
+//
+//===----------------------------------------------------------------------===//
+
+#include "MipsSubtarget.h"
+#include "Mips.h"
+#include "MipsGenSubtarget.inc"
+using namespace llvm;
+
+MipsSubtarget::MipsSubtarget(const TargetMachine &TM, const Module &M, 
+                             const std::string &FS) : isR3000(false) 
+{
+  std::string CPU = "generic";
+
+  // Parse features string.
+  ParseSubtargetFeatures(FS, CPU);
+}