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use super::*;
use ptx_parser as ast;
pub(super) fn run<'a, 'b>(
func: Vec<TypedStatement>,
id_def: &'b mut MutableNumericIdResolver<'a>,
) -> Result<Vec<ExpandedStatement>, TranslateError> {
let mut result = Vec::with_capacity(func.len());
for s in func {
match s {
Statement::Label(id) => result.push(Statement::Label(id)),
Statement::Conditional(bra) => result.push(Statement::Conditional(bra)),
Statement::LoadVar(details) => result.push(Statement::LoadVar(details)),
Statement::StoreVar(details) => result.push(Statement::StoreVar(details)),
Statement::RetValue(d, id) => result.push(Statement::RetValue(d, id)),
Statement::Conversion(conv) => result.push(Statement::Conversion(conv)),
Statement::Constant(c) => result.push(Statement::Constant(c)),
Statement::FunctionPointer(d) => result.push(Statement::FunctionPointer(d)),
s => {
let (new_statement, post_stmts) = {
let mut visitor = FlattenArguments::new(&mut result, id_def);
(s.visit_map(&mut visitor)?, visitor.post_stmts)
};
result.push(new_statement);
result.extend(post_stmts);
}
}
}
Ok(result)
}
struct FlattenArguments<'a, 'b> {
func: &'b mut Vec<ExpandedStatement>,
id_def: &'b mut MutableNumericIdResolver<'a>,
post_stmts: Vec<ExpandedStatement>,
}
impl<'a, 'b> FlattenArguments<'a, 'b> {
fn new(
func: &'b mut Vec<ExpandedStatement>,
id_def: &'b mut MutableNumericIdResolver<'a>,
) -> Self {
FlattenArguments {
func,
id_def,
post_stmts: Vec::new(),
}
}
fn reg(&mut self, name: SpirvWord) -> Result<SpirvWord, TranslateError> {
Ok(name)
}
fn reg_offset(
&mut self,
reg: SpirvWord,
offset: i32,
type_space: Option<(&ptx_parser::Type, ptx_parser::StateSpace)>,
_is_dst: bool,
) -> Result<SpirvWord, TranslateError> {
let (type_, state_space) = if let Some((type_, state_space)) = type_space {
(type_, state_space)
} else {
return Err(TranslateError::UntypedSymbol);
};
if state_space == ast::StateSpace::Reg {
let (reg_type, reg_space) = self.id_def.get_typed(reg)?;
if reg_space != ast::StateSpace::Reg {
return Err(error_mismatched_type());
}
let reg_scalar_type = match reg_type {
ast::Type::Scalar(underlying_type) => underlying_type,
_ => return Err(error_mismatched_type()),
};
let id_constant_stmt = self
.id_def
.register_intermediate(reg_type.clone(), ast::StateSpace::Reg);
self.func.push(Statement::Constant(ConstantDefinition {
dst: id_constant_stmt,
typ: reg_scalar_type,
value: ast::ImmediateValue::S64(offset as i64),
}));
let arith_details = match reg_scalar_type.kind() {
ast::ScalarKind::Signed => ast::ArithDetails::Integer(ast::ArithInteger {
type_: reg_scalar_type,
saturate: false,
}),
ast::ScalarKind::Unsigned | ast::ScalarKind::Bit => {
ast::ArithDetails::Integer(ast::ArithInteger {
type_: reg_scalar_type,
saturate: false,
})
}
_ => return Err(error_unreachable()),
};
let id_add_result = self.id_def.register_intermediate(reg_type, state_space);
self.func
.push(Statement::Instruction(ast::Instruction::Add {
data: arith_details,
arguments: ast::AddArgs {
dst: id_add_result,
src1: reg,
src2: id_constant_stmt,
},
}));
Ok(id_add_result)
} else {
let id_constant_stmt = self.id_def.register_intermediate(
ast::Type::Scalar(ast::ScalarType::S64),
ast::StateSpace::Reg,
);
self.func.push(Statement::Constant(ConstantDefinition {
dst: id_constant_stmt,
typ: ast::ScalarType::S64,
value: ast::ImmediateValue::S64(offset as i64),
}));
let dst = self
.id_def
.register_intermediate(type_.clone(), state_space);
self.func.push(Statement::PtrAccess(PtrAccess {
underlying_type: type_.clone(),
state_space: state_space,
dst,
ptr_src: reg,
offset_src: id_constant_stmt,
}));
Ok(dst)
}
}
fn immediate(
&mut self,
value: ast::ImmediateValue,
type_space: Option<(&ptx_parser::Type, ptx_parser::StateSpace)>,
) -> Result<SpirvWord, TranslateError> {
let (scalar_t, state_space) =
if let Some((ast::Type::Scalar(scalar), state_space)) = type_space {
(*scalar, state_space)
} else {
return Err(TranslateError::UntypedSymbol);
};
let id = self
.id_def
.register_intermediate(ast::Type::Scalar(scalar_t), state_space);
self.func.push(Statement::Constant(ConstantDefinition {
dst: id,
typ: scalar_t,
value,
}));
Ok(id)
}
}
impl<'a, 'b> ast::VisitorMap<TypedOperand, SpirvWord, TranslateError> for FlattenArguments<'a, 'b> {
fn visit(
&mut self,
args: TypedOperand,
type_space: Option<(&ptx_parser::Type, ptx_parser::StateSpace)>,
is_dst: bool,
_relaxed_type_check: bool,
) -> Result<SpirvWord, TranslateError> {
match args {
TypedOperand::Reg(r) => self.reg(r),
TypedOperand::Imm(x) => self.immediate(x, type_space),
TypedOperand::RegOffset(reg, offset) => {
self.reg_offset(reg, offset, type_space, is_dst)
}
TypedOperand::VecMember(..) => Err(error_unreachable()),
}
}
fn visit_ident(
&mut self,
name: <TypedOperand as ptx_parser::Operand>::Ident,
_type_space: Option<(&ptx_parser::Type, ptx_parser::StateSpace)>,
_is_dst: bool,
_relaxed_type_check: bool,
) -> Result<<SpirvWord as ptx_parser::Operand>::Ident, TranslateError> {
self.reg(name)
}
}
|
