Add R600 backend

A new backend supporting AMD GPUs: Radeon HD2XXX - HD7XXX

llvm-svn: 169915

1 files changed, 34 insertions, 0 deletions

diff --git a/llvm/lib/Target/R600/R600MachineFunctionInfo.cpp b/llvm/lib/Target/R600/R600MachineFunctionInfo.cpp
new file mode 100644
index 0000000..4eb5efa
--- /dev/null
+++ b/llvm/lib/Target/R600/R600MachineFunctionInfo.cpp
@@ -0,0 +1,34 @@
+//===-- R600MachineFunctionInfo.cpp - R600 Machine Function Info-*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+/// \file
+//===----------------------------------------------------------------------===//
+
+#include "R600MachineFunctionInfo.h"
+
+using namespace llvm;
+
+R600MachineFunctionInfo::R600MachineFunctionInfo(const MachineFunction &MF)
+  : MachineFunctionInfo(),
+    HasLinearInterpolation(false),
+    HasPerspectiveInterpolation(false) {
+    memset(Outputs, 0, sizeof(Outputs));
+    memset(StreamOutputs, 0, sizeof(StreamOutputs));
+  }
+
+unsigned R600MachineFunctionInfo::GetIJPerspectiveIndex() const {
+  assert(HasPerspectiveInterpolation);
+  return 0;
+}
+
+unsigned R600MachineFunctionInfo::GetIJLinearIndex() const {
+  assert(HasLinearInterpolation);
+  if (HasPerspectiveInterpolation)
+    return 1;
+  else
+    return 0;
+}