1 //===-- X86.h - Top-level interface for X86 representation ------*- C++ -*-===//
3 // This file contains the entry points for global functions defined in the x86
4 // target library, as used by the LLVM JIT.
6 // FIXME: This file will be dramatically changed in the future
8 //===----------------------------------------------------------------------===//
14 class MachineFunction;
18 /// X86PrintCode - Print out the specified machine code function to the
19 /// specified stream. This function should work regardless of whether or not
20 /// the function is in SSA form or not.
22 void X86PrintCode(const MachineFunction *MF, std::ostream &O);
24 /// X86SimpleInstructionSelection - This function converts an LLVM function into
25 /// a machine code representation is a very simple peep-hole fashion. The
26 /// generated code sucks but the implementation is nice and simple.
28 MachineFunction *X86SimpleInstructionSelection(Function &F, TargetMachine &TM);
30 /// X86SimpleRegisterAllocation - This function converts the specified machine
31 /// code function from SSA form to use explicit registers by spilling every
32 /// register. Wow, great policy huh?
34 inline void X86SimpleRegisterAllocation(MachineFunction *MF) {}
36 /// X86EmitCodeToMemory - This function converts a register allocated function
37 /// into raw machine code in a dynamically allocated chunk of memory. A pointer
38 /// to the start of the function is returned.
40 inline void *X86EmitCodeToMemory(MachineFunction *MF) { return 0; }
43 // Put symbolic names in a namespace to avoid causing these to clash with all
44 // kinds of other things...
47 // Defines a large number of symbolic names for X86 registers. This defines a
48 // mapping from register name to register number.
51 #define R(ENUM, NAME, FLAGS, TSFLAGS) ENUM,
52 #include "X86RegisterInfo.def"
55 // This defines a large number of symbolic names for X86 instruction opcodes.
57 #define I(ENUM, NAME, FLAGS, TSFLAGS) ENUM,
58 #include "X86InstructionInfo.def"