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[decompiler] Detect vector*! (#3846)

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Detect use of `vector*!`, which is inlined in jak 2 and jak 3.

---------

Co-authored-by: water111 <awaterford1111445@gmail.com>
This commit is contained in:
water111
2025-01-20 12:21:28 -05:00
committed by GitHub
parent 3ee2b4423c
commit 98d6618a8b
37 changed files with 2449 additions and 3185 deletions
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decompiler/analysis/atomic_op_builder.cpp
+61
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@@ -1689,6 +1689,62 @@ std::unique_ptr<AtomicOp> convert_vector_plus(const Instruction& i0,
idx);
}
std::unique_ptr<AtomicOp> convert_vector_xyz_product(const Instruction& i0,
const Instruction& i1,
const Instruction& i2,
const Instruction& i3,
const Instruction& i4,
int idx) {
/*
lqc2 vf4, 0(a1)
lqc2 vf5, 0(a2)
vaddx.w vf6, vf0, vf0
vmul.xyz vf6, vf4, vf5
sqc2 vf6, 0(a0)
*/
// lqc2 vf4, 0(a1) (src1)
if (i0.kind != InstructionKind::LQC2 || i0.get_dst(0).get_reg() != make_vf(4) ||
!i0.get_src(0).is_imm(0)) {
return nullptr;
}
Register src1 = i0.get_src(1).get_reg();
// lqc2 vf5, 0(a2) (src2)
if (i1.kind != InstructionKind::LQC2 || i1.get_dst(0).get_reg() != make_vf(5) ||
!i1.get_src(0).is_imm(0)) {
return nullptr;
}
Register src2 = i1.get_src(1).get_reg();
// vaddx.w vf6, vf0, vf0
if (i2.kind != InstructionKind::VADD_BC || i2.get_dst(0).get_reg() != make_vf(6) ||
i2.get_src(0).get_reg() != make_vf(0) || i2.get_src(1).get_reg() != make_vf(0) ||
i2.cop2_dest != 1 || i2.cop2_bc != 0) {
return nullptr;
}
// vmul.xyz vf6, vf4, vf5
if (i3.kind != InstructionKind::VMUL || i3.get_dst(0).get_reg() != make_vf(6) ||
i3.get_src(0).get_reg() != make_vf(4) || i3.get_src(1).get_reg() != make_vf(5) ||
i3.cop2_dest != 14) {
return nullptr;
}
// sqc2 vf6, 0(a0) (dst)
if (i4.kind != InstructionKind::SQC2 || i4.get_src(0).get_reg() != make_vf(6) ||
!i4.get_src(1).is_imm(0)) {
return nullptr;
}
Register dst = i4.get_src(2).get_reg();
return std::make_unique<SetVarOp>(
make_dst_var(dst, idx),
SimpleExpression(SimpleExpression::Kind::VECTOR_XYZ_PRODUCT, make_src_atom(dst, idx),
make_src_atom(src1, idx), make_src_atom(src2, idx)),
idx);
}
std::unique_ptr<AtomicOp> convert_vector_minus(const Instruction& i0,
const Instruction& i1,
const Instruction& i2,
@@ -1819,6 +1875,11 @@ std::unique_ptr<AtomicOp> convert_5(const Instruction& i0,
return as_vector_plus;
}
auto as_vector_xyz = convert_vector_xyz_product(i0, i1, i2, i3, i4, idx);
if (as_vector_xyz) {
return as_vector_xyz;
}
auto as_vector_minus = convert_vector_minus(i0, i1, i2, i3, i4, idx);
if (as_vector_minus) {
return as_vector_minus;