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shader: implement S_ORN2_SAVEEXEC_B32

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This commit is contained in:
nmzik
2026-09-09 13:11:48 +04:00
parent e04007a7c6
commit 32ea0869e5
7 changed files with 105 additions and 13 deletions
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src/graphics/shader/recompiler/frontend/translate/Control.cpp
+20 -13
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@@ -24,27 +24,34 @@ Decoder::Operand ConditionOperand(Decoder::OperandKind kind) {
void Translator::S_SAVEEXEC(const Decoder::Instruction& inst, IR::ValueOpcode operation,
bool negate_exec, bool negate_source, bool write_64) {
if (!write_64) {
// Read the encoded scalar word and preserve EXEC_HI, including in wave32.
const auto old = ir.GetExecLo();
const auto src = ReadU32(inst.src0);
const auto lhs = negate_exec ? ir.BitwiseNot(old) : old;
const auto rhs = negate_source ? ir.BitwiseNot(src) : src;
IR::U32 result;
switch (operation) {
case IR::ValueOpcode::LogicalAnd: result = ir.BitwiseAnd(lhs, rhs); break;
case IR::ValueOpcode::LogicalOr: result = ir.BitwiseOr(lhs, rhs); break;
default: EXIT("unsupported SAVEEXEC operation");
}
WriteRawU32(inst.dst, old);
WriteRawU32(ConditionOperand(Decoder::OperandKind::ExecLo), result);
ir.SetScc(ir.INotEqual(result, IR::U32(IR::Value(0u))));
return;
}
const auto old = ir.GetExec();
const auto src = ReadMask(inst.src0);
const auto lhs = negate_exec ? ir.LogicalNot(old) : old;
const auto rhs = negate_source ? ir.LogicalNot(src) : src;
auto result = IR::U1(ir.Emit(operation, {lhs, rhs}));
if (write_64) {
WriteMask(inst.dst, old, true);
} else {
WriteRawU32(inst.dst, ir.GetExecLo());
if (program.wave_size == 64u) {
const auto low_half =
ir.ULessThan(IR::U32(ir.Emit(IR::ValueOpcode::LaneId)), IR::U32(IR::Value(32u)));
result = IR::U1(ir.Emit(IR::ValueOpcode::SelectU1, {low_half, result, old}));
}
}
const auto result = IR::U1(ir.Emit(operation, {lhs, rhs}));
WriteMask(inst.dst, old, true);
const auto mask = BallotMask(result);
ir.SetExec(result);
ir.SetExecLo(mask[0]);
ir.SetExecHi(mask[1]);
ir.SetScc(
ir.INotEqual(write_64 ? ir.BitwiseOr(mask[0], mask[1]) : mask[0], IR::U32(IR::Value(0u))));
ir.SetScc(ir.INotEqual(ir.BitwiseOr(mask[0], mask[1]), IR::U32(IR::Value(0u))));
}
void Translator::ADD_U32(const Decoder::Instruction& inst, bool vector, bool use_carry_in) {