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7b5fdc7fbd
Materializing the stack pointer update before a call requires a scratch register that may not be available. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132601 91177308-0d34-0410-b5e6-96231b3b80d8
48 lines
1.4 KiB
C++
48 lines
1.4 KiB
C++
//=- BlackfinFrameLowering.h - Define frame lowering for Blackfin -*- C++ -*-=//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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//
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//
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//===----------------------------------------------------------------------===//
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#ifndef ALPHA_FRAMEINFO_H
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#define ALPHA_FRAMEINFO_H
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#include "Blackfin.h"
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#include "BlackfinSubtarget.h"
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#include "llvm/Target/TargetFrameLowering.h"
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namespace llvm {
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class BlackfinSubtarget;
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class BlackfinFrameLowering : public TargetFrameLowering {
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protected:
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const BlackfinSubtarget &STI;
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public:
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explicit BlackfinFrameLowering(const BlackfinSubtarget &sti)
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: TargetFrameLowering(TargetFrameLowering::StackGrowsDown, 4, 0), STI(sti) {
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}
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/// emitProlog/emitEpilog - These methods insert prolog and epilog code into
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/// the function.
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void emitPrologue(MachineFunction &MF) const;
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void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const;
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bool hasFP(const MachineFunction &MF) const;
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bool hasReservedCallFrame(const MachineFunction &MF) const;
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void processFunctionBeforeCalleeSavedScan(MachineFunction &MF,
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RegScavenger *RS) const;
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};
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} // End llvm namespace
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#endif
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