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authorTim Northover <Tim.Northover@arm.com>2013-01-31 12:12:40 +0000
committerTim Northover <Tim.Northover@arm.com>2013-01-31 12:12:40 +0000
commit72062f5744557e270a38192554c3126ea5f97434 (patch)
treeae6e4c8abb4e0572745e7849b4948c58fea3e8d0 /lib/Target/AArch64/AArch64SelectionDAGInfo.h
parentd72b4d321e317327330e1e82d0f652d4e237c171 (diff)
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Add AArch64 as an experimental target.
This patch adds support for AArch64 (ARM's 64-bit architecture) to LLVM in the "experimental" category. Currently, it won't be built unless requested explicitly. This initial commit should have support for: + Assembly of all scalar (i.e. non-NEON, non-Crypto) instructions (except the late addition CRC instructions). + CodeGen features required for C++03 and C99. + Compilation for the "small" memory model: code+static data < 4GB. + Absolute and position-independent code. + GNU-style (i.e. "__thread") TLS. + Debugging information. The principal omission, currently, is performance tuning. This patch excludes the NEON support also reviewed due to an outbreak of batshit insanity in our legal department. That will be committed soon bringing the changes to precisely what has been approved. Further reviews would be gratefully received. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174054 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/AArch64/AArch64SelectionDAGInfo.h')
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diff --git a/lib/Target/AArch64/AArch64SelectionDAGInfo.h b/lib/Target/AArch64/AArch64SelectionDAGInfo.h
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+++ b/lib/Target/AArch64/AArch64SelectionDAGInfo.h
@@ -0,0 +1,32 @@
+//===-- AArch64SelectionDAGInfo.h - AArch64 SelectionDAG Info -----*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file defines the AArch64 subclass for TargetSelectionDAGInfo.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_AARCH64SELECTIONDAGINFO_H
+#define LLVM_AARCH64SELECTIONDAGINFO_H
+
+#include "llvm/Target/TargetSelectionDAGInfo.h"
+
+namespace llvm {
+
+class AArch64TargetMachine;
+
+class AArch64SelectionDAGInfo : public TargetSelectionDAGInfo {
+ const AArch64Subtarget *Subtarget;
+public:
+ explicit AArch64SelectionDAGInfo(const AArch64TargetMachine &TM);
+ ~AArch64SelectionDAGInfo();
+};
+
+}
+
+#endif