Add R600 backend

A new backend supporting AMD GPUs: Radeon HD2XXX - HD7XXX

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169915 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 36 insertions, 0 deletions

diff --git a/lib/Target/R600/R600Schedule.td b/lib/Target/R600/R600Schedule.td
new file mode 100644
index 0000000000..7ede181c51
--- /dev/null
+++ b/lib/Target/R600/R600Schedule.td
@@ -0,0 +1,36 @@
+//===-- R600Schedule.td - R600 Scheduling definitions ------*- tablegen -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// R600 has a VLIW architecture.  On pre-cayman cards there are 5 instruction
+// slots ALU.X, ALU.Y, ALU.Z, ALU.W, and TRANS.  For cayman cards, the TRANS
+// slot has been removed. 
+//
+//===----------------------------------------------------------------------===//
+
+
+def ALU_X : FuncUnit;
+def ALU_Y : FuncUnit;
+def ALU_Z : FuncUnit;
+def ALU_W : FuncUnit;
+def TRANS : FuncUnit;
+
+def AnyALU : InstrItinClass;
+def VecALU : InstrItinClass;
+def TransALU : InstrItinClass;
+
+def R600_EG_Itin : ProcessorItineraries <
+  [ALU_X, ALU_Y, ALU_Z, ALU_W, TRANS, ALU_NULL],
+  [],
+  [
+    InstrItinData<AnyALU, [InstrStage<1, [ALU_X, ALU_Y, ALU_Z, ALU_W, TRANS]>]>,
+    InstrItinData<VecALU, [InstrStage<1, [ALU_X, ALU_Y, ALU_X, ALU_W]>]>,
+    InstrItinData<TransALU, [InstrStage<1, [TRANS]>]>,
+    InstrItinData<NullALU, [InstrStage<1, [ALU_NULL]>]>
+  ]
+>;