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Fix single stepping for certain instructions

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Several issues:
1. Several terminal instructions did not stop at the end of a single-step block
2. x64 backend for the A32 frontend sometimes polluted upper_location_descriptor with the single-stepping flag

We also introduce the enable_optimizations parameter to the A32 frontend.
This commit is contained in:
MerryMage 2020-04-24 10:00:58 +01:00
parent 591e7667f2
commit 94d0d33e02
12 changed files with 333 additions and 103 deletions
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12
src/backend/x64/a32_interface.cpp
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@ -159,11 +159,13 @@ private:
}
IR::Block ir_block = A32::Translate(A32::LocationDescriptor{descriptor}, [this](u32 vaddr) { return config.callbacks->MemoryReadCode(vaddr); }, {config.define_unpredictable_behaviour, config.hook_hint_instructions});
Optimization::A32GetSetElimination(ir_block);
Optimization::DeadCodeElimination(ir_block);
Optimization::A32ConstantMemoryReads(ir_block, config.callbacks);
Optimization::ConstantPropagation(ir_block);
Optimization::DeadCodeElimination(ir_block);
if (config.enable_optimizations) {
Optimization::A32GetSetElimination(ir_block);
Optimization::DeadCodeElimination(ir_block);
Optimization::A32ConstantMemoryReads(ir_block, config.callbacks);
Optimization::ConstantPropagation(ir_block);
Optimization::DeadCodeElimination(ir_block);
}
Optimization::VerificationPass(ir_block);
return emitter.Emit(ir_block);
}