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[decompiler] Support accessing 128-bit bitfields (#514)

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* support some 128-bit bitfield stuff

* fix bug

* support type stuff correctly
This commit is contained in:
water111
2021-05-21 20:36:04 -04:00
committed by GitHub
parent 6ac399ca33
commit 3fbdd662dc
14 changed files with 497 additions and 279 deletions
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decompiler/analysis/atomic_op_builder.cpp
+10 -1
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@@ -215,7 +215,6 @@ std::unique_ptr<AtomicOp> make_standard_store(const Instruction& i0,
std::unique_ptr<AtomicOp> make_asm_op(const Instruction& i0, int idx) {
switch (i0.kind) {
case InstructionKind::POR:
case InstructionKind::SLLV: // goal will use dsllv
case InstructionKind::SLL: // goal will use dsll
case InstructionKind::PCPYUD:
@@ -442,6 +441,14 @@ std::unique_ptr<AtomicOp> convert_or_1(const Instruction& i0, int idx) {
return std::make_unique<SetVarOp>(dest, src, idx);
}
std::unique_ptr<AtomicOp> convert_por_1(const Instruction& i0, int idx) {
if (is_gpr_3(i0, InstructionKind::POR, {}, {}, rr0())) {
return std::make_unique<SetVarOp>(make_dst_var(i0, idx),
make_src_atom(i0.get_src(0).get_reg(), idx).as_expr(), idx);
}
return std::make_unique<AsmOp>(i0, idx);
}
std::unique_ptr<AtomicOp> convert_ori_1(const Instruction& i0, int idx) {
auto dest = make_dst_var(i0, idx);
SimpleExpression src;
@@ -713,6 +720,8 @@ std::unique_ptr<AtomicOp> convert_1(const Instruction& i0, int idx, bool hint_in
switch (i0.kind) {
case InstructionKind::OR:
return convert_or_1(i0, idx);
case InstructionKind::POR:
return convert_por_1(i0, idx);
case InstructionKind::ORI:
return convert_ori_1(i0, idx);
case InstructionKind::AND: