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use std::fs;
use ptx_parser::r#type::{
AddressSizeDirective, AddressSpace, CodeLinkage, CodeOrDataLinkage, DataLinkage, DataType,
EntryFunction, FileDirective, FuncFunction, FunctionBody, FunctionHeaderDirective,
FunctionKernelDirective, FunctionStatement, GlobalInitializer, InitializerValue, Instruction,
LinkingDirective, LocationDirective, Module, ModuleDebugDirective, ModuleDirective,
ModuleInfoDirectiveKind, ModuleVariableDirective, NumericLiteral, PragmaDirective,
RegisterDirective, StatementDirective, TargetDirective, VariableDirective, VariableModifier,
VersionDirective,
};
use ptx_parser::{PtxParser, PtxTokenStream, PtxUnlexer, PtxUnparser, tokenize};
fn load_module() -> Module {
let source = fs::read_to_string("tests/sample/mini_step64.ptx").expect("sample PTX missing");
let tokens = tokenize(&source).expect("tokenization failed");
let mut stream = PtxTokenStream::new(&tokens);
let module = Module::parse(&mut stream).expect("module parsing failed");
assert!(stream.is_at_end(), "parser should consume all tokens");
module
}
#[test]
fn parse_mini_step64_ast() {
// Compare by unparsing both ASTs to text and comparing the results
// This ignores span differences while still verifying structural equality
let parsed = load_module();
let expected = expected_module();
let parsed_text = PtxUnlexer::to_string(&parsed.to_tokens()).expect("unparse parsed");
let expected_text = PtxUnlexer::to_string(&expected.to_tokens()).expect("unparse expected");
assert_eq!(parsed_text, expected_text, "Unparsed ASTs should match");
}
#[allow(dead_code)]
fn expected_module() -> Module {
Module {
directives: vec![
ModuleDirective::ModuleInfo {
directive: ModuleInfoDirectiveKind::Version {
directive: VersionDirective {
major: 8,
minor: 5,
span: 0..0,
},
span: 0..0,
},
span: 0..0,
},
ModuleDirective::ModuleInfo {
directive: ModuleInfoDirectiveKind::Target {
directive: TargetDirective {
entries: vec!["sm_80".into()],
span: 0..0,
},
span: 0..0,
},
span: 0..0,
},
ModuleDirective::ModuleInfo {
directive: ModuleInfoDirectiveKind::AddressSize {
directive: AddressSizeDirective {
size: 64,
span: 0..0,
},
span: 0..0,
},
span: 0..0,
},
ModuleDirective::Debug {
directive: ModuleDebugDirective::File {
directive: FileDirective {
index: 1,
path: "mini_step64.cu".into(),
span: 0..0,
},
span: 0..0,
},
span: 0..0,
},
ModuleDirective::Linking {
directive: LinkingDirective {
kind: CodeOrDataLinkage::Visible { span: 0..0 },
prototype: "symbol_linkage".into(),
span: 0..0,
},
span: 0..0,
},
ModuleDirective::ModuleVariable {
directive: ModuleVariableDirective::Global {
directive: VariableDirective {
address_space: Some(AddressSpace::Global { span: 0..0 }),
attributes: vec![],
ty: Some(DataType::U64 { span: 0..0 }),
modifiers: vec![
VariableModifier::Linkage {
linkage: DataLinkage::Visible { span: 0..0 },
span: 0..0,
},
VariableModifier::Alignment {
value: 8,
span: 0..0,
},
],
name: "g_data".into(),
array: vec![Some(2)],
initializer: Some(GlobalInitializer::Aggregate {
values: vec![
GlobalInitializer::Scalar {
value: InitializerValue::Numeric {
value: NumericLiteral::Unsigned {
value: 1,
span: 0..0,
},
span: 0..0,
},
span: 0..0,
},
GlobalInitializer::Scalar {
value: InitializerValue::Numeric {
value: NumericLiteral::Unsigned {
value: 2,
span: 0..0,
},
span: 0..0,
},
span: 0..0,
},
],
span: 0..0,
}),
span: 0..0,
},
span: 0..0,
},
span: 0..0,
},
ModuleDirective::ModuleVariable {
directive: ModuleVariableDirective::Const {
directive: VariableDirective {
address_space: Some(AddressSpace::Const { span: 0..0 }),
attributes: vec![],
ty: Some(DataType::B32 { span: 0..0 }),
modifiers: vec![
VariableModifier::Linkage {
linkage: DataLinkage::Visible { span: 0..0 },
span: 0..0,
},
VariableModifier::Alignment {
value: 4,
span: 0..0,
},
],
name: "const_values".into(),
array: vec![Some(2)],
initializer: Some(GlobalInitializer::Aggregate {
values: vec![
GlobalInitializer::Scalar {
value: InitializerValue::Numeric {
value: NumericLiteral::Unsigned {
value: 3,
span: 0..0,
},
span: 0..0,
},
span: 0..0,
},
GlobalInitializer::Scalar {
value: InitializerValue::Numeric {
value: NumericLiteral::Unsigned {
value: 4,
span: 0..0,
},
span: 0..0,
},
span: 0..0,
},
],
span: 0..0,
}),
span: 0..0,
},
span: 0..0,
},
span: 0..0,
},
ModuleDirective::FunctionKernel {
directive: FunctionKernelDirective::Func {
function: FuncFunction {
name: "helper".into(),
directives: vec![FunctionHeaderDirective::Linkage {
linkage: CodeLinkage::Visible { span: 0..0 },
span: 0..0,
}],
return_param: None,
params: vec![VariableDirective {
address_space: Some(AddressSpace::Param { span: 0..0 }),
attributes: vec![],
ty: Some(DataType::B32 { span: 0..0 }),
modifiers: vec![],
name: "helper_param".into(),
array: vec![],
initializer: None,
span: 0..0,
}],
body: FunctionBody {
statements: vec![
reg("%r0", "b32"),
instruction("mov.u32 %r0, %r0;"),
instruction("ret;"),
],
span: 0..0,
},
span: 0..0,
},
span: 0..0,
},
span: 0..0,
},
ModuleDirective::FunctionKernel {
directive: FunctionKernelDirective::Entry {
function: EntryFunction {
name: "step64_kernel".into(),
directives: vec![FunctionHeaderDirective::Linkage {
linkage: CodeLinkage::Visible { span: 0..0 },
span: 0..0,
}],
params: vec![
VariableDirective {
address_space: Some(AddressSpace::Param { span: 0..0 }),
attributes: vec![],
ty: Some(DataType::U64 { span: 0..0 }),
modifiers: vec![],
name: "param0".into(),
array: vec![],
initializer: None,
span: 0..0,
},
VariableDirective {
address_space: Some(AddressSpace::Param { span: 0..0 }),
attributes: vec![],
ty: Some(DataType::U32 { span: 0..0 }),
modifiers: vec![],
name: "param1".into(),
array: vec![],
initializer: None,
span: 0..0,
},
],
body: FunctionBody {
statements: vec![
reg("%p1", "pred"),
reg("%r1", "b32"),
reg("%r2", "b32"),
reg("%rd1", "b64"),
FunctionStatement::Directive {
directive: StatementDirective::Loc {
directive: LocationDirective {
file_index: 1,
line: 42,
column: 3,
options: vec![],
comment: None,
span: 0..0,
},
span: 0..0,
},
span: 0..0,
},
instruction("mov.u32 %r1, %tid.x;"),
instruction("mov.u32 %r2, %ntid.x;"),
instruction("add.s32 %r1, %r1, %r2;"),
FunctionStatement::Directive {
directive: StatementDirective::Pragma {
directive: PragmaDirective {
arguments: vec!["nounroll".into()],
comment: None,
span: 0..0,
},
span: 0..0,
},
span: 0..0,
},
label("$L_loop"),
FunctionStatement::Directive {
directive: StatementDirective::Loc {
directive: LocationDirective {
file_index: 1,
line: 42,
column: 3,
options: vec![],
comment: None,
span: 0..0,
},
span: 0..0,
},
span: 0..0,
},
instruction("setp.eq.s32 %p1, %r1, 0;"),
instruction("@%p1 bra $L_exit;"),
FunctionStatement::Block {
statements: vec![
reg("%r3", "b32"),
instruction("mov.u32 %r3, %r1;"),
],
span: 0..0,
},
instruction("add.s32 %r1, %r1, -1;"),
instruction("bra $L_loop;"),
label("$L_exit"),
instruction("ret;"),
],
span: 0..0,
},
span: 0..0,
},
span: 0..0,
},
span: 0..0,
},
],
span: 0..0,
}
}
#[allow(dead_code)]
fn reg(name: &str, ty: &str) -> FunctionStatement {
FunctionStatement::Directive {
directive: StatementDirective::Reg {
directive: RegisterDirective {
name: name.into(),
ty: Some(ty.into()),
range: None,
comment: None,
span: 0..0,
},
span: 0..0,
},
span: 0..0,
}
}
#[allow(dead_code)]
fn instruction(source: &str) -> FunctionStatement {
let tokens = tokenize(source).expect("tokenize instruction");
let mut stream = PtxTokenStream::new(&tokens);
let inst = Instruction::parse(&mut stream).expect("parse instruction");
FunctionStatement::Instruction {
instruction: inst,
span: 0..0,
}
}
#[allow(dead_code)]
fn label(name: &str) -> FunctionStatement {
FunctionStatement::Label {
name: name.into(),
span: 0..0,
}
}