From f98f2ce29e6e2996fa58f38979143eceaa818335 Mon Sep 17 00:00:00 2001
From: Tom Stellard <thomas.stellard@amd.com>
Date: Tue, 11 Dec 2012 21:25:42 +0000
Subject: 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
---
 lib/Target/R600/R600Defines.h | 79 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 79 insertions(+)
 create mode 100644 lib/Target/R600/R600Defines.h

(limited to 'lib/Target/R600/R600Defines.h')

diff --git a/lib/Target/R600/R600Defines.h b/lib/Target/R600/R600Defines.h
new file mode 100644
index 0000000000..7dea8e44ea
--- /dev/null
+++ b/lib/Target/R600/R600Defines.h
@@ -0,0 +1,79 @@
+//===-- R600Defines.h - R600 Helper Macros ----------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+/// \file
+//===----------------------------------------------------------------------===//
+
+#ifndef R600DEFINES_H_
+#define R600DEFINES_H_
+
+#include "llvm/MC/MCRegisterInfo.h"
+
+// Operand Flags
+#define MO_FLAG_CLAMP (1 << 0)
+#define MO_FLAG_NEG   (1 << 1)
+#define MO_FLAG_ABS   (1 << 2)
+#define MO_FLAG_MASK  (1 << 3)
+#define MO_FLAG_PUSH  (1 << 4)
+#define MO_FLAG_NOT_LAST  (1 << 5)
+#define MO_FLAG_LAST  (1 << 6)
+#define NUM_MO_FLAGS 7
+
+/// \brief Helper for getting the operand index for the instruction flags
+/// operand.
+#define GET_FLAG_OPERAND_IDX(Flags) (((Flags) >> 7) & 0x3)
+
+namespace R600_InstFlag {
+  enum TIF {
+    TRANS_ONLY = (1 << 0),
+    TEX = (1 << 1),
+    REDUCTION = (1 << 2),
+    FC = (1 << 3),
+    TRIG = (1 << 4),
+    OP3 = (1 << 5),
+    VECTOR = (1 << 6),
+    //FlagOperand bits 7, 8
+    NATIVE_OPERANDS = (1 << 9),
+    OP1 = (1 << 10),
+    OP2 = (1 << 11)
+  };
+}
+
+#define HAS_NATIVE_OPERANDS(Flags) ((Flags) & R600_InstFlag::NATIVE_OPERANDS)
+
+/// \brief Defines for extracting register infomation from register encoding
+#define HW_REG_MASK 0x1ff
+#define HW_CHAN_SHIFT 9
+
+namespace R600Operands {
+  enum Ops {
+    DST,
+    UPDATE_EXEC_MASK,
+    UPDATE_PREDICATE,
+    WRITE,
+    OMOD,
+    DST_REL,
+    CLAMP,
+    SRC0,
+    SRC0_NEG,
+    SRC0_REL,
+    SRC0_ABS,
+    SRC1,
+    SRC1_NEG,
+    SRC1_REL,
+    SRC1_ABS,
+    SRC2,
+    SRC2_NEG,
+    SRC2_REL,
+    LAST,
+    PRED_SEL,
+    IMM,
+    COUNT
+ };
+}
+
+#endif // R600DEFINES_H_
-- 
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