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- implemented all integer comparison operators

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This commit is contained in:
Jonathan Russell 2018-08-14 15:07:09 +01:00
parent b30df47499
commit 167693f102
1 changed files with 165 additions and 31 deletions
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196
src/scripting/vm/jit.cpp
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@ -8,6 +8,7 @@
#include <asmjit/asmjit.h>
#include <asmjit/x86.h>
#include <functional>
class AsmJitException : public std::exception
{
@ -221,6 +222,29 @@ static bool CanJit(VMScriptFunction *sfunc)
return true;
}
template <typename Func>
void emitComparisonOpcode(asmjit::X86Compiler& cc, const TArray<asmjit::Label>& labels, const VMOP* pc, int i, Func compFunc) {
using namespace asmjit;
Label elseLabel = cc.newLabel();
auto tmp0 = cc.newInt32();
auto tmp1 = cc.newInt32();
compFunc(tmp0);
cc.mov(tmp1, A);
cc.and_(tmp1, CMP_CHECK);
cc.cmp(tmp0, tmp1);
cc.jne(elseLabel);
cc.jmp(labels[i + 2 + JMPOFS(pc + 1)]);
cc.bind(elseLabel);
cc.jmp(labels[i + 2]);
}
JitFuncPtr JitCompile(VMScriptFunction *sfunc)
{
#if 0 // For debugging
@ -913,42 +937,152 @@ JitFuncPtr JitCompile(VMScriptFunction *sfunc)
break;
case OP_EQ_R: // if ((dB == dkC) != A) then pc++
{
Label elseLabel = cc.newLabel();
auto tmp0 = cc.newInt32();
auto tmp1 = cc.newInt32();
cc.cmp(regD[B], regD[C]);
cc.sete(tmp0);
cc.mov(tmp1, A);
cc.and_(tmp1, CMP_CHECK);
cc.setz(tmp1);
cc.cmp(tmp0, tmp1);
cc.je(elseLabel);
cc.jmp(labels[i + 2 + JMPOFS(pc + 1)]);
cc.bind(elseLabel);
cc.jmp(labels[i + 2]);
auto compLambda = [&] (X86Gp& result) {
cc.cmp(regD[B], regD[C]);
cc.sete(result);
};
emitComparisonOpcode(cc, labels, pc, i, compLambda);
break;
}
case OP_EQ_K:
case OP_LT_RR: // if ((dkB < dkC) != A) then pc++
case OP_LT_RK:
case OP_LT_KR:
case OP_LE_RR: // if ((dkB <= dkC) != A) then pc++
case OP_LE_RK:
case OP_LE_KR:
case OP_LTU_RR: // if ((dkB < dkC) != A) then pc++ -- unsigned
case OP_LTU_RK:
case OP_LTU_KR:
case OP_LEU_RR: // if ((dkB <= dkC) != A) then pc++ -- unsigned
case OP_LEU_RK:
case OP_LEU_KR:
{
auto compLambda = [&] (X86Gp& result) {
cc.cmp(regD[B], konstd[C]);
cc.sete(result);
};
emitComparisonOpcode(cc, labels, pc, i, compLambda);
break;
}
case OP_LT_RR: // if ((dkB < dkC) != A) then pc++
{
auto compLambda = [&](X86Gp& result) {
cc.cmp(regD[B], regD[C]);
cc.setl(result);
};
emitComparisonOpcode(cc, labels, pc, i, compLambda);
break;
}
case OP_LT_RK:
{
auto compLambda = [&](X86Gp& result) {
cc.cmp(regD[B], konstd[C]);
cc.setl(result);
};
emitComparisonOpcode(cc, labels, pc, i, compLambda);
break;
}
case OP_LT_KR:
{
auto compLambda = [&](X86Gp& result) {
auto tmp = cc.newIntPtr();
cc.mov(tmp, reinterpret_cast<ptrdiff_t>(&(konstd[C])));
cc.cmp(x86::ptr(tmp), regD[B]);
cc.setl(result);
};
emitComparisonOpcode(cc, labels, pc, i, compLambda);
break;
}
case OP_LE_RR: // if ((dkB <= dkC) != A) then pc++
{
auto compLambda = [&](X86Gp& result) {
cc.cmp(regD[B], regD[C]);
cc.setle(result);
};
emitComparisonOpcode(cc, labels, pc, i, compLambda);
break;
}
case OP_LE_RK:
{
auto compLambda = [&](X86Gp& result) {
cc.cmp(regD[B], konstd[C]);
cc.setle(result);
};
emitComparisonOpcode(cc, labels, pc, i, compLambda);
break;
}
case OP_LE_KR:
{
auto compLambda = [&](X86Gp& result) {
auto tmp = cc.newIntPtr();
cc.mov(tmp, reinterpret_cast<ptrdiff_t>(&(konstd[C])));
cc.cmp(x86::ptr(tmp), regD[B]);
cc.setle(result);
};
emitComparisonOpcode(cc, labels, pc, i, compLambda);
break;
}
case OP_LTU_RR: // if ((dkB < dkC) != A) then pc++ -- unsigned
{
auto compLambda = [&](X86Gp& result) {
cc.cmp(regD[B], regD[C]);
cc.setb(result);
};
emitComparisonOpcode(cc, labels, pc, i, compLambda);
break;
}
case OP_LTU_RK:
{
auto compLambda = [&](X86Gp& result) {
cc.cmp(regD[B], konstd[C]);
cc.setb(result);
};
emitComparisonOpcode(cc, labels, pc, i, compLambda);
break;
}
case OP_LTU_KR:
{
auto compLambda = [&](X86Gp& result) {
auto tmp = cc.newIntPtr();
cc.mov(tmp, reinterpret_cast<ptrdiff_t>(&(konstd[C])));
cc.cmp(x86::ptr(tmp), regD[B]);
cc.setb(result);
};
emitComparisonOpcode(cc, labels, pc, i, compLambda);
break;
}
case OP_LEU_RR: // if ((dkB <= dkC) != A) then pc++ -- unsigned
{
auto compLambda = [&](X86Gp& result) {
cc.cmp(regD[B], regD[C]);
cc.setbe(result);
};
emitComparisonOpcode(cc, labels, pc, i, compLambda);
break;
}
case OP_LEU_RK:
{
auto compLambda = [&](X86Gp& result) {
cc.cmp(regD[B], konstd[C]);
cc.setbe(result);
};
emitComparisonOpcode(cc, labels, pc, i, compLambda);
break;
}
case OP_LEU_KR:
{
auto compLambda = [&](X86Gp& result) {
auto tmp = cc.newIntPtr();
cc.mov(tmp, reinterpret_cast<ptrdiff_t>(&(konstd[C])));
cc.cmp(x86::ptr(tmp), regD[B]);
cc.setbe(result);
};
emitComparisonOpcode(cc, labels, pc, i, compLambda);
break;
}
// Double-precision floating point math.
case OP_ADDF_RR: // fA = fB + fkC