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shader_recompiler: Fix IADD3 input partitioning

master
ameerj 2021-06-21 21:07:52 +07:00
parent 808ef97a08
commit a7536825df
1 changed files with 13 additions and 14 deletions
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27
src/shader_recompiler/frontend/maxwell/translate/impl/integer_add_three_input.cpp
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@ -42,14 +42,10 @@ enum class Half : u64 {
}
}
void IADD3(TranslatorVisitor& v, u64 insn, IR::U32 op_b, IR::U32 op_c) {
void IADD3(TranslatorVisitor& v, u64 insn, IR::U32 op_a, IR::U32 op_b, IR::U32 op_c) {
union {
u64 insn;
BitField<0, 8, IR::Reg> dest_reg;
BitField<8, 8, IR::Reg> src_a;
BitField<31, 2, Half> half_c;
BitField<33, 2, Half> half_b;
BitField<35, 2, Half> half_a;
BitField<37, 2, Shift> shift;
BitField<47, 1, u64> cc;
BitField<48, 1, u64> x;
@ -58,11 +54,6 @@ void IADD3(TranslatorVisitor& v, u64 insn, IR::U32 op_b, IR::U32 op_c) {
BitField<51, 1, u64> neg_a;
} iadd3{insn};
IR::U32 op_a{v.X(iadd3.src_a)};
op_a = IntegerHalf(v.ir, op_a, iadd3.half_a);
op_b = IntegerHalf(v.ir, op_b, iadd3.half_b);
op_c = IntegerHalf(v.ir, op_c, iadd3.half_c);
if (iadd3.neg_a != 0) {
op_a = v.ir.INeg(op_a);
}
@ -72,7 +63,6 @@ void IADD3(TranslatorVisitor& v, u64 insn, IR::U32 op_b, IR::U32 op_c) {
if (iadd3.neg_c != 0) {
op_c = v.ir.INeg(op_c);
}
IR::U32 lhs_1{v.ir.IAdd(op_a, op_b)};
if (iadd3.x != 0) {
const IR::U32 carry{v.ir.Select(v.ir.GetCFlag(), v.ir.Imm32(1), v.ir.Imm32(0))};
@ -97,15 +87,24 @@ void IADD3(TranslatorVisitor& v, u64 insn, IR::U32 op_b, IR::U32 op_c) {
} // Anonymous namespace
void TranslatorVisitor::IADD3_reg(u64 insn) {
IADD3(*this, insn, GetReg20(insn), GetReg39(insn));
union {
u64 insn;
BitField<35, 2, Half> half_a;
BitField<31, 2, Half> half_c;
BitField<33, 2, Half> half_b;
} iadd3{insn};
const auto op_a{IntegerHalf(ir, GetReg8(insn), iadd3.half_a)};
const auto op_b{IntegerHalf(ir, GetReg20(insn), iadd3.half_b)};
const auto op_c{IntegerHalf(ir, GetReg39(insn), iadd3.half_c)};
IADD3(*this, insn, op_a, op_b, op_c);
}
void TranslatorVisitor::IADD3_cbuf(u64 insn) {
IADD3(*this, insn, GetCbuf(insn), GetReg39(insn));
IADD3(*this, insn, GetReg8(insn), GetCbuf(insn), GetReg39(insn));
}
void TranslatorVisitor::IADD3_imm(u64 insn) {
IADD3(*this, insn, GetImm20(insn), GetReg39(insn));
IADD3(*this, insn, GetReg8(insn), GetImm20(insn), GetReg39(insn));
}
} // namespace Shader::Maxwell