From 8971842f43b978e72aa40cf0a94c3d39c7a74c85 Mon Sep 17 00:00:00 2001
From: Alex Bradbury <asb@lowrisc.org>
Date: Thu, 19 Oct 2017 21:37:38 +0000
Subject: [RISCV] Initial codegen support for ALU operations

This adds the minimum necessary to support codegen for simple ALU operations
on RV32. Prolog and epilog insertion, support for memory operations etc etc
follow in future patches.

Leave guessInstructionProperties=1 until https://reviews.llvm.org/D37065 is
reviewed and lands.

Differential Revision: https://reviews.llvm.org/D29933

llvm-svn: 316188
---
 llvm/lib/Target/RISCV/RISCVFrameLowering.cpp | 29 ++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)
 create mode 100644 llvm/lib/Target/RISCV/RISCVFrameLowering.cpp

(limited to 'llvm/lib/Target/RISCV/RISCVFrameLowering.cpp')

diff --git a/llvm/lib/Target/RISCV/RISCVFrameLowering.cpp b/llvm/lib/Target/RISCV/RISCVFrameLowering.cpp
new file mode 100644
index 00000000000..fd3b258e26c
--- /dev/null
+++ b/llvm/lib/Target/RISCV/RISCVFrameLowering.cpp
@@ -0,0 +1,29 @@
+//===-- RISCVFrameLowering.cpp - RISCV Frame Information ------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file contains the RISCV implementation of TargetFrameLowering class.
+//
+//===----------------------------------------------------------------------===//
+
+#include "RISCVFrameLowering.h"
+#include "RISCVSubtarget.h"
+#include "llvm/CodeGen/MachineFrameInfo.h"
+#include "llvm/CodeGen/MachineFunction.h"
+#include "llvm/CodeGen/MachineInstrBuilder.h"
+#include "llvm/CodeGen/MachineRegisterInfo.h"
+
+using namespace llvm;
+
+bool RISCVFrameLowering::hasFP(const MachineFunction &MF) const { return true; }
+
+void RISCVFrameLowering::emitPrologue(MachineFunction &MF,
+                                      MachineBasicBlock &MBB) const {}
+
+void RISCVFrameLowering::emitEpilogue(MachineFunction &MF,
+                                      MachineBasicBlock &MBB) const {}
-- 
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