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#pragma once
#include "../Transform.h"
#include "../OpTable.h"
#include "../UsedRegs.h"
namespace code {
namespace x86 {
STORM_PKG(core.asm.x86);
/**
* Transform which replaces invalid instructions with a sequence of valid ones.
*/
class RemoveInvalid : public Transform {
STORM_CLASS;
public:
STORM_CTOR RemoveInvalid();
// Start transform.
virtual void STORM_FN before(Listing *dest, Listing *src);
// Transform one instruction.
virtual void STORM_FN during(Listing *dest, Listing *src, Nat id);
private:
// Remember used registers.
Array<RegSet *> *used;
// Find an unused register at 'line'.
Reg unusedReg(Nat line);
// Struct describing parameters for a future fnCall instruction.
class Param {
STORM_VALUE;
public:
Param(Operand src, TypeDesc *type, Bool ref);
// Source operand.
Operand src;
// Source type.
TypeDesc *type;
// Reference parameter?
Bool ref;
};
// Function params seen so far.
Array<Param> *params;
// Signature for the table of transform functions.
typedef void (RemoveInvalid::*TransformFn)(Listing *dest, Instr *instr, Nat line);
// Transform table.
static const OpEntry<TransformFn> transformMap[];
// Load floating-point register.
Reg loadFpRegister(Listing *dest, const Operand &op, Nat line);
Operand loadFpRegisterOrMemory(Listing *dest, const Operand &op, Nat line);
// Transform functions.
void immRegTfm(Listing *dest, Instr *instr, Nat line);
void beginBlockTfm(Listing *dest, Instr *instr, Nat line);
void leaTfm(Listing *dest, Instr *instr, Nat line);
void mulTfm(Listing *dest, Instr *instr, Nat line);
void idivTfm(Listing *dest, Instr *instr, Nat line);
void udivTfm(Listing *dest, Instr *instr, Nat line);
void imodTfm(Listing *dest, Instr *instr, Nat line);
void umodTfm(Listing *dest, Instr *instr, Nat line);
void setCondTfm(Listing *dest, Instr *instr, Nat line);
void shlTfm(Listing *dest, Instr *instr, Nat line);
void shrTfm(Listing *dest, Instr *instr, Nat line);
void sarTfm(Listing *dest, Instr *instr, Nat line);
void icastTfm(Listing *dest, Instr *instr, Nat line);
void ucastTfm(Listing *dest, Instr *instr, Nat line);
void fnegTfm(Listing *dest, Instr *instr, Nat line);
void fcastiTfm(Listing *dest, Instr *instr, Nat line);
void fcastuTfm(Listing *dest, Instr *instr, Nat line);
void icastfTfm(Listing *dest, Instr *instr, Nat line);
void ucastfTfm(Listing *dest, Instr *instr, Nat line);
// Generic transform for floating point operations.
void fpInstrTfm(Listing *dest, Instr *instr, Nat line);
// Perform a function call.
void fnCall(Listing *dest, TypeInstr *instr, Array<Param> *params);
// Function calls.
void fnParamTfm(Listing *dest, Instr *instr, Nat line);
void fnParamRefTfm(Listing *dest, Instr *instr, Nat line);
void fnCallTfm(Listing *dest, Instr *instr, Nat line);
void fnCallRefTfm(Listing *dest, Instr *instr, Nat line);
};
}
}
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