From 1fc08f5e9ef733ef1ce6f363fecedc2260e78974 Mon Sep 17 00:00:00 2001
From: dim <dim@FreeBSD.org>
Date: Sat, 14 Apr 2012 13:54:10 +0000
Subject: Vendor import of llvm trunk r154661:
http://llvm.org/svn/llvm-project/llvm/trunk@r154661
---
lib/Target/Mips/MipsMachineFunction.cpp | 50 +++++++++++++++++++++++++++++++++
1 file changed, 50 insertions(+)
create mode 100644 lib/Target/Mips/MipsMachineFunction.cpp
(limited to 'lib/Target/Mips/MipsMachineFunction.cpp')
diff --git a/lib/Target/Mips/MipsMachineFunction.cpp b/lib/Target/Mips/MipsMachineFunction.cpp
new file mode 100644
index 0000000..b00c62b
--- /dev/null
+++ b/lib/Target/Mips/MipsMachineFunction.cpp
@@ -0,0 +1,50 @@
+//===-- MipsMachineFunctionInfo.cpp - Private data used for Mips ----------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "MipsMachineFunction.h"
+#include "MipsInstrInfo.h"
+#include "MipsSubtarget.h"
+#include "MCTargetDesc/MipsBaseInfo.h"
+#include "llvm/Function.h"
+#include "llvm/CodeGen/MachineInstrBuilder.h"
+#include "llvm/CodeGen/MachineRegisterInfo.h"
+#include "llvm/Support/CommandLine.h"
+
+using namespace llvm;
+
+static cl::opt<bool>
+FixGlobalBaseReg("mips-fix-global-base-reg", cl::Hidden, cl::init(true),
+ cl::desc("Always use $gp as the global base register."));
+
+bool MipsFunctionInfo::globalBaseRegFixed() const {
+ return FixGlobalBaseReg;
+}
+
+bool MipsFunctionInfo::globalBaseRegSet() const {
+ return GlobalBaseReg;
+}
+
+unsigned MipsFunctionInfo::getGlobalBaseReg() {
+ // Return if it has already been initialized.
+ if (GlobalBaseReg)
+ return GlobalBaseReg;
+
+ const MipsSubtarget &ST = MF.getTarget().getSubtarget<MipsSubtarget>();
+
+ if (FixGlobalBaseReg) // $gp is the global base register.
+ return GlobalBaseReg = ST.isABI_N64() ? Mips::GP_64 : Mips::GP;
+
+ const TargetRegisterClass *RC;
+ RC = ST.isABI_N64() ?
+ Mips::CPU64RegsRegisterClass : Mips::CPURegsRegisterClass;
+
+ return GlobalBaseReg = MF.getRegInfo().createVirtualRegister(RC);
+}
+
+void MipsFunctionInfo::anchor() { }
--
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