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author | Akira Hatanaka <ahatanaka@mips.com> | 2012-07-31 22:50:19 +0000 |
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committer | Akira Hatanaka <ahatanaka@mips.com> | 2012-07-31 22:50:19 +0000 |
commit | cdb3ba71ce550c5a41c84c3678225a39d6f0a414 (patch) | |
tree | b0d0c70bbaa9f09fc6ade9c6ff6fd113d231da53 /lib/Target/Mips/Mips16FrameLowering.h | |
parent | d7122b8d3c48eab05d425c99fee53cde07feafe4 (diff) | |
download | external_llvm-cdb3ba71ce550c5a41c84c3678225a39d6f0a414.zip external_llvm-cdb3ba71ce550c5a41c84c3678225a39d6f0a414.tar.gz external_llvm-cdb3ba71ce550c5a41c84c3678225a39d6f0a414.tar.bz2 |
Add definitions of two subclasses of MipsFrameLowering, Mips16FrameLowering and
MipsSEFrameLowering.
Implement MipsSEFrameLowering::hasReservedCallFrame. Call frames will not be
reserved if there is a call with a large call frame or there are variable sized
objects on the stack.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161090 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/Mips/Mips16FrameLowering.h')
-rw-r--r-- | lib/Target/Mips/Mips16FrameLowering.h | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/lib/Target/Mips/Mips16FrameLowering.h b/lib/Target/Mips/Mips16FrameLowering.h new file mode 100644 index 0000000..25cc37b --- /dev/null +++ b/lib/Target/Mips/Mips16FrameLowering.h @@ -0,0 +1,43 @@ +//===-- Mips16FrameLowering.h - Mips16 frame lowering ----------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +// +// +// +//===----------------------------------------------------------------------===// + +#ifndef MIPS16_FRAMEINFO_H +#define MIPS16_FRAMEINFO_H + +#include "MipsFrameLowering.h" + +namespace llvm { +class Mips16FrameLowering : public MipsFrameLowering { +public: + explicit Mips16FrameLowering(const MipsSubtarget &STI) + : MipsFrameLowering(STI) {} + + /// emitProlog/emitEpilog - These methods insert prolog and epilog code into + /// the function. + void emitPrologue(MachineFunction &MF) const; + void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const; + + bool spillCalleeSavedRegisters(MachineBasicBlock &MBB, + MachineBasicBlock::iterator MI, + const std::vector<CalleeSavedInfo> &CSI, + const TargetRegisterInfo *TRI) const; + + bool hasReservedCallFrame(const MachineFunction &MF) const; + + void processFunctionBeforeCalleeSavedScan(MachineFunction &MF, + RegScavenger *RS) const; +}; + +} // End llvm namespace + +#endif |