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Diffstat (limited to 'contrib/llvm/lib/CodeGen/MIRParser/MIParser.h')
| -rw-r--r-- | contrib/llvm/lib/CodeGen/MIRParser/MIParser.h | 99 |
1 files changed, 99 insertions, 0 deletions
diff --git a/contrib/llvm/lib/CodeGen/MIRParser/MIParser.h b/contrib/llvm/lib/CodeGen/MIRParser/MIParser.h new file mode 100644 index 0000000..8aef704 --- /dev/null +++ b/contrib/llvm/lib/CodeGen/MIRParser/MIParser.h @@ -0,0 +1,99 @@ +//===- MIParser.h - Machine Instructions Parser ---------------------------===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +// +// This file declares the function that parses the machine instructions. +// +//===----------------------------------------------------------------------===// + +#ifndef LLVM_LIB_CODEGEN_MIRPARSER_MIPARSER_H +#define LLVM_LIB_CODEGEN_MIRPARSER_MIPARSER_H + +#include "llvm/ADT/DenseMap.h" +#include "llvm/ADT/StringRef.h" + +namespace llvm { + +class BasicBlock; +class MachineBasicBlock; +class MachineInstr; +class MachineFunction; +class MDNode; +struct SlotMapping; +class SMDiagnostic; +class SourceMgr; + +struct PerFunctionMIParsingState { + DenseMap<unsigned, MachineBasicBlock *> MBBSlots; + DenseMap<unsigned, unsigned> VirtualRegisterSlots; + DenseMap<unsigned, int> FixedStackObjectSlots; + DenseMap<unsigned, int> StackObjectSlots; + DenseMap<unsigned, unsigned> ConstantPoolSlots; + DenseMap<unsigned, unsigned> JumpTableSlots; +}; + +/// Parse the machine basic block definitions, and skip the machine +/// instructions. +/// +/// This function runs the first parsing pass on the machine function's body. +/// It parses only the machine basic block definitions and creates the machine +/// basic blocks in the given machine function. +/// +/// The machine instructions aren't parsed during the first pass because all +/// the machine basic blocks aren't defined yet - this makes it impossible to +/// resolve the machine basic block references. +/// +/// Return true if an error occurred. +bool parseMachineBasicBlockDefinitions(MachineFunction &MF, StringRef Src, + PerFunctionMIParsingState &PFS, + const SlotMapping &IRSlots, + SMDiagnostic &Error); + +/// Parse the machine instructions. +/// +/// This function runs the second parsing pass on the machine function's body. +/// It skips the machine basic block definitions and parses only the machine +/// instructions and basic block attributes like liveins and successors. +/// +/// The second parsing pass assumes that the first parsing pass already ran +/// on the given source string. +/// +/// Return true if an error occurred. +bool parseMachineInstructions(MachineFunction &MF, StringRef Src, + const PerFunctionMIParsingState &PFS, + const SlotMapping &IRSlots, SMDiagnostic &Error); + +bool parseMBBReference(MachineBasicBlock *&MBB, SourceMgr &SM, + MachineFunction &MF, StringRef Src, + const PerFunctionMIParsingState &PFS, + const SlotMapping &IRSlots, SMDiagnostic &Error); + +bool parseNamedRegisterReference(unsigned &Reg, SourceMgr &SM, + MachineFunction &MF, StringRef Src, + const PerFunctionMIParsingState &PFS, + const SlotMapping &IRSlots, + SMDiagnostic &Error); + +bool parseVirtualRegisterReference(unsigned &Reg, SourceMgr &SM, + MachineFunction &MF, StringRef Src, + const PerFunctionMIParsingState &PFS, + const SlotMapping &IRSlots, + SMDiagnostic &Error); + +bool parseStackObjectReference(int &FI, SourceMgr &SM, MachineFunction &MF, + StringRef Src, + const PerFunctionMIParsingState &PFS, + const SlotMapping &IRSlots, SMDiagnostic &Error); + +bool parseMDNode(MDNode *&Node, SourceMgr &SM, MachineFunction &MF, + StringRef Src, const PerFunctionMIParsingState &PFS, + const SlotMapping &IRSlots, SMDiagnostic &Error); + +} // end namespace llvm + +#endif |
