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Merge pull request #3968 from hthh/mov-bug 

Jit: Remove unsafe MOV optimization
This commit is contained in:
Pierre Bourdon 2016-06-30 18:00:42 +02:00 committed by GitHub
parent f8bf839e36 e57333ac5e
commit 488847099f
1 changed files with 0 additions and 7 deletions
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7
Source/Core/Common/x64Emitter.cpp
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@ -1540,13 +1540,6 @@ void XEmitter::XOR(int bits, const OpArg& a1, const OpArg& a2)
} }
void XEmitter::MOV(int bits, const OpArg& a1, const OpArg& a2) void XEmitter::MOV(int bits, const OpArg& a1, const OpArg& a2)
{ {
// Shortcut to zero a register
if (a2.IsZero() && a1.IsSimpleReg() && !flags_locked)
{
XOR(bits, a1, a1);
return;
}
if (a1.IsSimpleReg() && a2.IsSimpleReg() && a1.GetSimpleReg() == a2.GetSimpleReg()) if (a1.IsSimpleReg() && a2.IsSimpleReg() && a1.GetSimpleReg() == a2.GetSimpleReg())
ERROR_LOG(DYNA_REC, "Redundant MOV @ %p - bug in JIT?", code); ERROR_LOG(DYNA_REC, "Redundant MOV @ %p - bug in JIT?", code);
WriteNormalOp(bits, nrmMOV, a1, a2); WriteNormalOp(bits, nrmMOV, a1, a2);