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Fixed actualization of illegal offset scales

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This commit is contained in:
Brian Fiete 2020-06-29 12:16:47 -07:00
parent 92e189826b
commit 7d680c2a48
2 changed files with 283 additions and 248 deletions
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30
IDEHelper/Backend/BeMCContext.h
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@ -788,6 +788,7 @@ public:
bool mDoConservativeLife; // Keep alive through 'init' as well as 'uninit'
bool mIsExpr; // Not an actual value, something like 'mRelTo + mRelOffset'
bool mWantsExprActualize;
bool mWantsExprOffsetActualize;
bool mChainLifetimeEnd; // Kill relTo's when we are killed
bool mForceMem;
bool mForceReg;
@ -827,6 +828,7 @@ public:
mType = NULL;
mIsExpr = false;
mWantsExprActualize = false;
mWantsExprOffsetActualize = false;
mChainLifetimeEnd = false;
mFrameOffset = INT_MIN;
mHasDynLife = false;
@ -1274,6 +1276,30 @@ public:
}
};
struct BeRMParamsInfo
{
X64CPURegister mRegA;
X64CPURegister mRegB;
int mBScale;
int mDisp;
BeMCRMMode mMode;
int mErrorVReg;
int mVRegWithScaledOffset;
BeRMParamsInfo()
{
mRegA = X64Reg_None;
mRegB = X64Reg_None;
mBScale = 1;
mDisp = 0;
mMode = BeMCRMMode_Invalid;
mErrorVReg = -1;
mVRegWithScaledOffset = -1;
}
};
// This class only processes one function per instantiation
class BeMCContext
{
@ -1409,8 +1435,8 @@ public:
uint8 EncodeRegNum(X64CPURegister regNum);
int GetRegSize(int regNum);
BeMCRMMode ValidateRMResult(const BeMCOperand& operand, X64CPURegister& regA, X64CPURegister& regB, int& bScale, int& disp, int* errorVReg, BeMCRMMode result, bool doValidate = true);
BeMCRMMode GetRMParams(const BeMCOperand& operand, X64CPURegister& regA, X64CPURegister& regB, int& bScale, int& disp, int* errorVReg = NULL, bool doValidate = true);
void ValidateRMResult(const BeMCOperand& operand, BeRMParamsInfo& rmInfo, bool doValidate = true);
void GetRMParams(const BeMCOperand& operand, BeRMParamsInfo& rmInfo, bool doValidate = true);
void DisableRegister(const BeMCOperand& operand, X64CPURegister reg);
void MarkInvalidRMRegs(const BeMCOperand& operand);
void GetUsedRegs(const BeMCOperand& operand, X64CPURegister& regA, X64CPURegister& regB); // Expands regs