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- implemented CMP_APPROX for OP_EQF_*, making ~== work for doubles
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parent
079391e5ac
commit
d137b3c94e
1 changed files with 61 additions and 14 deletions
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@ -1166,12 +1166,34 @@ JitFuncPtr JitCompile(VMScriptFunction *sfunc)
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case OP_EQF_R: // if ((fB == fkC) != (A & 1)) then pc++
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{
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auto compLambda = [&](X86Gp& result) {
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auto tmp = cc.newInt32();
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cc.ucomisd(regF[B], regF[C]);
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cc.sete(result);
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cc.setnp(tmp);
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cc.and_(result, tmp);
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cc.and_(result, 1);
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bool approx = static_cast<bool>(A & CMP_APPROX);
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if (!approx) {
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auto tmp = cc.newInt32();
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cc.ucomisd(regF[B], regF[C]);
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cc.sete(result);
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cc.setnp(tmp);
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cc.and_(result, tmp);
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cc.and_(result, 1);
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}
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else {
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auto tmp = cc.newXmmSd();
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int64_t absMaskInt = 0x7FFFFFFFFFFFFFFF;
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auto absMask = cc.newDoubleConst(kConstScopeLocal, reinterpret_cast<const double&>(absMaskInt));
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auto absMaskXmm = cc.newXmmPd();
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auto epsilon = cc.newDoubleConst(kConstScopeLocal, VM_EPSILON);
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auto epsilonXmm = cc.newXmmSd();
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cc.movsd(tmp, regF[B]);
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cc.subsd(tmp, regF[C]);
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cc.movsd(absMaskXmm, absMask);
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cc.andpd(tmp, absMaskXmm);
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cc.movsd(epsilonXmm, epsilon);
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cc.ucomisd(epsilonXmm, tmp);
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cc.seta(result);
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cc.and_(result, 1);
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}
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};
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emitComparisonOpcode(cc, labels, pc, i, compLambda);
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@ -1180,15 +1202,40 @@ JitFuncPtr JitCompile(VMScriptFunction *sfunc)
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case OP_EQF_K:
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{
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auto compLambda = [&](X86Gp& result) {
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auto konstTmp = cc.newIntPtr();
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auto parityTmp = cc.newInt32();
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cc.mov(konstTmp, reinterpret_cast<ptrdiff_t>(&(konstf[C])));
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bool approx = static_cast<bool>(A & CMP_APPROX);
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if (!approx) {
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auto konstTmp = cc.newIntPtr();
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auto parityTmp = cc.newInt32();
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cc.mov(konstTmp, reinterpret_cast<ptrdiff_t>(&(konstf[C])));
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cc.ucomisd(regF[B], x86::qword_ptr(konstTmp));
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cc.sete(result);
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cc.setnp(parityTmp);
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cc.and_(result, parityTmp);
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cc.and_(result, 1);
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cc.ucomisd(regF[B], x86::qword_ptr(konstTmp));
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cc.sete(result);
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cc.setnp(parityTmp);
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cc.and_(result, parityTmp);
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cc.and_(result, 1);
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}
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else {
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auto konstTmp = cc.newIntPtr();
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auto subTmp = cc.newXmmSd();
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int64_t absMaskInt = 0x7FFFFFFFFFFFFFFF;
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auto absMask = cc.newDoubleConst(kConstScopeLocal, reinterpret_cast<const double&>(absMaskInt));
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auto absMaskXmm = cc.newXmmPd();
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auto epsilon = cc.newDoubleConst(kConstScopeLocal, VM_EPSILON);
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auto epsilonXmm = cc.newXmmSd();
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cc.mov(konstTmp, reinterpret_cast<ptrdiff_t>(&(konstf[C])));
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cc.movsd(subTmp, regF[B]);
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cc.subsd(subTmp, x86::qword_ptr(konstTmp));
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cc.movsd(absMaskXmm, absMask);
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cc.andpd(subTmp, absMaskXmm);
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cc.movsd(epsilonXmm, epsilon);
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cc.ucomisd(epsilonXmm, subTmp);
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cc.seta(result);
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cc.and_(result, 1);
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}
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};
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emitComparisonOpcode(cc, labels, pc, i, compLambda);
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