Added X86FunctionInfo subclass of MachineFunction to record whether the
function that is being lowered is forced to use FP. Currently this is only
true for main() / Cygwin.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28703 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/X86/X86MachineFunctionInfo.h b/lib/Target/X86/X86MachineFunctionInfo.h
new file mode 100644
index 0000000..9da2bf9
--- /dev/null
+++ b/lib/Target/X86/X86MachineFunctionInfo.h
@@ -0,0 +1,30 @@
+//====- X86MachineFuctionInfo.h - X86 machine function info -----*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file was developed by the Evan Cheng and is distributed under
+// the University of Illinois Open Source License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file declares X86-specific per-machine-function information.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef X86MACHINEFUNCTIONINFO_H
+#define X86MACHINEFUNCTIONINFO_H
+
+#include "llvm/CodeGen/MachineFunction.h"
+
+namespace llvm {
+
+class X86FunctionInfo : public MachineFunctionInfo {
+ bool ForceFramePointer; // Function requires use of frame pointer.
+public:
+ X86FunctionInfo(MachineFunction& MF) : ForceFramePointer(false) {}
+ bool getForceFramePointer() const { return ForceFramePointer;}
+ void setForceFramePointer(bool forceFP) { ForceFramePointer = forceFP; }
+};
+} // End llvm namespace
+
+#endif