forked from OSchip/llvm-project
62 lines
2.0 KiB
C
62 lines
2.0 KiB
C
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//===-- X86.h - Top-level interface for X86 representation ------*- C++ -*-===//
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//
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// This file contains the entry points for global functions defined in the x86
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// target library, as used by the LLVM JIT.
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//
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// FIXME: This file will be dramatically changed in the future
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//
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//===----------------------------------------------------------------------===//
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#ifndef TARGET_X86_H
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#define TARGET_X86_H
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#include <iosfwd>
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class MFunction;
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class Function;
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/// X86PrintCode - Print out the specified machine code function to the
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/// specified stream. This function should work regardless of whether or not
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/// the function is in SSA form or not.
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///
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void X86PrintCode(const MFunction *MF, std::ostream &O);
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/// X86SimpleInstructionSelection - This function converts an LLVM function into
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/// a machine code representation is a very simple peep-hole fashion. The
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/// generated code sucks but the implementation is nice and simple.
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///
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MFunction *X86SimpleInstructionSelection(Function &F);
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/// X86SimpleRegisterAllocation - This function converts the specified machine
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/// code function from SSA form to use explicit registers by spilling every
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/// register. Wow, great policy huh?
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///
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inline void X86SimpleRegisterAllocation(MFunction *MF) {}
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/// X86EmitCodeToMemory - This function converts a register allocated function
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/// into raw machine code in a dynamically allocated chunk of memory. A pointer
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/// to the start of the function is returned.
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///
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inline void *X86EmitCodeToMemory(MFunction *MF) { return 0; }
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// Put symbolic names in a namespace to avoid causing these to clash with all
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// kinds of other things...
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//
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namespace X86 {
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// Defines a large number of symbolic names for X86 registers. This defines a
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// mapping from register name to register number.
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//
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enum Register {
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#define R(ENUM, NAME, FLAGS, TSFLAGS) ENUM,
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#include "X86RegisterInfo.def"
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};
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// This defines a large number of symbolic names for X86 instruction opcodes.
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enum Opcode {
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#define I(ENUM, NAME, FLAGS, TSFLAGS) ENUM,
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#include "X86InstructionInfo.def"
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};
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}
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#endif
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