forked from NUDT-compiler/nudt-compiler-cpp
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34 lines
679 B
34 lines
679 B
#include "mir/MIR.h"
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#include <stdexcept>
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namespace mir {
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namespace {
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bool IsAllowedReg(PhysReg reg) {
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switch (reg) {
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case PhysReg::W0:
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case PhysReg::W8:
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case PhysReg::W9:
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case PhysReg::X29:
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case PhysReg::X30:
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case PhysReg::SP:
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return true;
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}
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return false;
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}
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} // namespace
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void RunRegAlloc(MachineFunction& function) {
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for (const auto& inst : function.entry().instructions()) {
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for (const auto& operand : inst.operands()) {
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if (operand.kind() == Operand::Kind::Reg && !IsAllowedReg(operand.reg())) {
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throw std::runtime_error("Lab3 MVP 后端发现未预着色的寄存器");
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}
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}
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}
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}
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} // namespace mir
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