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CPU/NewRec: Fix OOB reads on InstructionInfo

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This commit is contained in:
Stenzek 2023-12-04 21:21:53 +10:00
parent 4f9cdb37d9
commit 2071addce0
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2 changed files with 4 additions and 2 deletions
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4
src/core/cpu_newrec_compiler.cpp
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@ -111,7 +111,7 @@ const void* CPU::NewRec::Compiler::CompileBlock(CodeCache::Block* block, u32* ho
{
CompileInstruction();
if (iinfo->is_last_instruction || m_block_ended)
if (m_block_ended || iinfo->is_last_instruction)
{
if (!m_block_ended)
{
@ -1111,6 +1111,7 @@ void CPU::NewRec::Compiler::BackupHostState()
bu.dirty_gte_done_cycle = m_dirty_gte_done_cycle;
bu.block_ended = m_block_ended;
bu.inst = inst;
bu.iinfo = iinfo;
bu.current_instruction_pc = m_current_instruction_pc;
bu.current_instruction_delay_slot = m_current_instruction_branch_delay_slot;
bu.const_regs_valid = m_constant_regs_valid;
@ -1139,6 +1140,7 @@ void CPU::NewRec::Compiler::RestoreHostState()
m_current_instruction_branch_delay_slot = bu.current_instruction_delay_slot;
m_current_instruction_pc = bu.current_instruction_pc;
inst = bu.inst;
iinfo = bu.iinfo;
m_block_ended = bu.block_ended;
m_dirty_gte_done_cycle = bu.dirty_gte_done_cycle;
m_dirty_instruction_bits = bu.dirty_instruction_bits;

2
src/core/cpu_newrec_compiler.h
View file

@ -436,7 +436,7 @@ protected:
bool dirty_gte_done_cycle;
bool block_ended;
const Instruction* inst;
const CodeCache::InstructionInfo* iinfo;
CodeCache::InstructionInfo* iinfo;
u32 current_instruction_pc;
bool current_instruction_delay_slot;
std::bitset<static_cast<size_t>(Reg::count)> const_regs_valid;