2019-01-17 01:59:12 +00:00
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use crate::{
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func_env::FuncEnv,
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module::{Converter, Module},
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};
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use cranelift_codegen::{ir, isa};
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2019-01-29 18:16:39 +00:00
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use cranelift_entity::PrimaryMap;
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2019-01-17 01:59:12 +00:00
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use cranelift_wasm::{self, translate_module, FuncTranslator, ModuleEnvironment};
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2019-01-29 18:16:39 +00:00
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use hashbrown::HashMap;
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2019-01-22 19:02:06 +00:00
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use wasmer_runtime_core::{
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2019-01-18 18:54:16 +00:00
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error::{CompileError, CompileResult},
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2019-01-17 01:59:12 +00:00
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module::{DataInitializer, ExportIndex, ImportName, TableInitializer},
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structures::{Map, TypedIndex},
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types::{
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2019-01-29 21:04:42 +00:00
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ElementType, FuncSig, GlobalDescriptor, GlobalIndex, GlobalInit, Initializer,
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LocalFuncIndex, LocalOrImport, MemoryDescriptor, SigIndex, TableDescriptor, Value,
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2019-01-17 01:59:12 +00:00
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},
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2019-01-29 23:44:15 +00:00
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units::Pages,
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2019-01-17 01:59:12 +00:00
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};
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pub struct ModuleEnv<'module, 'isa> {
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pub module: &'module mut Module,
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isa: &'isa isa::TargetIsa,
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pub signatures: Map<SigIndex, ir::Signature>,
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globals: Map<GlobalIndex, cranelift_wasm::Global>,
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func_bodies: Map<LocalFuncIndex, ir::Function>,
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2019-01-29 18:16:39 +00:00
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pub deduplicated: PrimaryMap<cranelift_wasm::SignatureIndex, SigIndex>,
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duplicated: HashMap<SigIndex, cranelift_wasm::SignatureIndex>,
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2019-01-17 01:59:12 +00:00
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}
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impl<'module, 'isa> ModuleEnv<'module, 'isa> {
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pub fn new(module: &'module mut Module, isa: &'isa isa::TargetIsa) -> Self {
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Self {
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module,
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isa,
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signatures: Map::new(),
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globals: Map::new(),
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func_bodies: Map::new(),
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2019-01-29 18:16:39 +00:00
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deduplicated: PrimaryMap::new(),
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duplicated: HashMap::new(),
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2019-01-17 01:59:12 +00:00
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}
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}
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2019-01-18 18:54:16 +00:00
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pub fn translate(mut self, wasm: &[u8]) -> CompileResult<Map<LocalFuncIndex, ir::Function>> {
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translate_module(wasm, &mut self)
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.map_err(|e| CompileError::InternalError { msg: e.to_string() })?;
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2019-01-17 01:59:12 +00:00
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Ok(self.func_bodies)
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}
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}
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impl<'module, 'isa, 'data> ModuleEnvironment<'data> for ModuleEnv<'module, 'isa> {
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/// Get the information needed to produce Cranelift IR for the current target.
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fn target_config(&self) -> isa::TargetFrontendConfig {
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self.isa.frontend_config()
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}
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/// Declares a function signature to the environment.
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fn declare_signature(&mut self, sig: &ir::Signature) {
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2019-01-29 18:16:39 +00:00
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let clif_sig_index = self.signatures.push(sig.clone());
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let func_sig: FuncSig = Converter(sig).into();
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2019-01-29 20:49:51 +00:00
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let sig_index = self.module.sig_registry.lookup_sig_index(func_sig);
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2019-01-29 18:16:39 +00:00
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self.deduplicated.push(sig_index);
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self.duplicated
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.insert(sig_index, Converter(clif_sig_index).into());
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2019-01-17 01:59:12 +00:00
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}
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/// Return the signature with the given index.
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fn get_signature(&self, clif_sig_index: cranelift_wasm::SignatureIndex) -> &ir::Signature {
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&self.signatures[Converter(clif_sig_index).into()]
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2019-01-17 01:59:12 +00:00
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}
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/// Declares a function import to the environment.
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fn declare_func_import(
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&mut self,
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clif_sig_index: cranelift_wasm::SignatureIndex,
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namespace: &'data str,
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name: &'data str,
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) {
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2019-01-29 18:16:39 +00:00
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let sig_index = self.deduplicated[clif_sig_index];
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self.module.func_assoc.push(sig_index);
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// Add import names to list of imported functions
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self.module.imported_functions.push(ImportName {
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namespace: namespace.to_string(),
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name: name.to_string(),
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});
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}
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/// Return the number of imported funcs.
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fn get_num_func_imports(&self) -> usize {
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self.module.imported_functions.len()
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}
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/// Declares the type (signature) of a local function in the module.
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2019-01-29 18:16:39 +00:00
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fn declare_func_type(&mut self, clif_sig_index: cranelift_wasm::SignatureIndex) {
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let sig_index = self.deduplicated[clif_sig_index];
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self.module.func_assoc.push(sig_index);
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2019-01-17 01:59:12 +00:00
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}
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/// Return the signature index for the given function index.
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fn get_func_type(
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&self,
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func_index: cranelift_wasm::FuncIndex,
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) -> cranelift_wasm::SignatureIndex {
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2019-01-29 18:16:39 +00:00
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let sig_index: SigIndex = self.module.func_assoc[Converter(func_index).into()];
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self.duplicated[&sig_index]
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}
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/// Declares a global to the environment.
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fn declare_global(&mut self, global: cranelift_wasm::Global) {
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let desc = GlobalDescriptor {
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mutable: global.mutability,
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ty: Converter(global.ty).into(),
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};
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let init = match global.initializer {
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2019-01-28 19:55:44 +00:00
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cranelift_wasm::GlobalInit::I32Const(x) => Initializer::Const(Value::I32(x)),
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cranelift_wasm::GlobalInit::I64Const(x) => Initializer::Const(Value::I64(x)),
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cranelift_wasm::GlobalInit::F32Const(x) => {
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Initializer::Const(Value::F32(f32::from_bits(x)))
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}
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cranelift_wasm::GlobalInit::F64Const(x) => {
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Initializer::Const(Value::F64(f64::from_bits(x)))
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}
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cranelift_wasm::GlobalInit::GetGlobal(global_index) => {
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2019-02-01 22:00:07 +00:00
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// assert!(!desc.mutable);
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let global_index: GlobalIndex = Converter(global_index).into();
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let imported_global_index = global_index
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.local_or_import(self.module)
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.import()
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.expect("invalid global initializer when declaring an imported global");
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Initializer::GetGlobal(imported_global_index)
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}
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_ => panic!("invalid global initializer when declaring a local global"),
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};
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// Add global ir to the list of globals
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2019-01-28 19:55:44 +00:00
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self.module.globals.push(GlobalInit { desc, init });
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self.globals.push(global);
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}
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/// Declares a global import to the environment.
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fn declare_global_import(
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&mut self,
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global: cranelift_wasm::Global,
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namespace: &'data str,
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name: &'data str,
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) {
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assert!(match global.initializer {
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cranelift_wasm::GlobalInit::Import => true,
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_ => false,
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});
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let import_name = ImportName {
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namespace: namespace.to_string(),
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name: name.to_string(),
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};
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let desc = GlobalDescriptor {
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mutable: global.mutability,
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ty: Converter(global.ty).into(),
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};
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// Add global ir to the list of globals
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self.module.imported_globals.push((import_name, desc));
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self.globals.push(global);
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}
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/// Return the global for the given global index.
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fn get_global(&self, global_index: cranelift_wasm::GlobalIndex) -> &cranelift_wasm::Global {
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&self.globals[Converter(global_index).into()]
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}
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/// Declares a table to the environment.
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fn declare_table(&mut self, table: cranelift_wasm::Table) {
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use cranelift_wasm::TableElementType;
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// Add table ir to the list of tables
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self.module.tables.push(TableDescriptor {
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element: match table.ty {
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TableElementType::Func => ElementType::Anyfunc,
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_ => unimplemented!(),
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},
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minimum: table.minimum,
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maximum: table.maximum,
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});
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}
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/// Declares a table import to the environment.
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fn declare_table_import(
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&mut self,
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table: cranelift_wasm::Table,
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namespace: &'data str,
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name: &'data str,
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) {
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use cranelift_wasm::TableElementType;
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let import_name = ImportName {
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namespace: namespace.to_string(),
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name: name.to_string(),
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};
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2019-01-29 21:04:42 +00:00
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let imported_table = TableDescriptor {
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element: match table.ty {
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TableElementType::Func => ElementType::Anyfunc,
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_ => unimplemented!(),
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},
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minimum: table.minimum,
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maximum: table.maximum,
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2019-01-17 01:59:12 +00:00
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};
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// Add import names to list of imported tables
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self.module
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.imported_tables
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.push((import_name, imported_table));
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}
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/// Fills a declared table with references to functions in the module.
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fn declare_table_elements(
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&mut self,
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table_index: cranelift_wasm::TableIndex,
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base: Option<cranelift_wasm::GlobalIndex>,
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offset: usize,
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elements: Vec<cranelift_wasm::FuncIndex>,
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) {
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// Convert Cranelift GlobalIndex to wamser GlobalIndex
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// let base = base.map(|index| WasmerGlobalIndex::new(index.index()));
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let base = match base {
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Some(global_index) => {
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let global_index: GlobalIndex = Converter(global_index).into();
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Initializer::GetGlobal(match global_index.local_or_import(self.module) {
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LocalOrImport::Import(imported_global_index) => imported_global_index,
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LocalOrImport::Local(_) => {
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panic!("invalid global initializer when declaring an imported global")
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}
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})
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}
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None => Initializer::Const((offset as i32).into()),
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};
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// Add table initializer to list of table initializers
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self.module.elem_initializers.push(TableInitializer {
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table_index: Converter(table_index).into(),
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base,
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elements: elements
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.iter()
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.map(|&func_index| Converter(func_index).into())
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.collect(),
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});
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}
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/// Declares a memory to the environment
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fn declare_memory(&mut self, memory: cranelift_wasm::Memory) {
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2019-01-29 21:04:42 +00:00
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self.module.memories.push(MemoryDescriptor {
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minimum: Pages(memory.minimum),
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maximum: memory.maximum.map(|max| Pages(max)),
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shared: memory.shared,
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});
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}
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/// Declares a memory import to the environment.
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fn declare_memory_import(
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&mut self,
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memory: cranelift_wasm::Memory,
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namespace: &'data str,
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name: &'data str,
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) {
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let import_name = ImportName {
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namespace: namespace.to_string(),
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name: name.to_string(),
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};
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let memory = MemoryDescriptor {
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minimum: Pages(memory.minimum),
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maximum: memory.maximum.map(|max| Pages(max)),
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shared: memory.shared,
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};
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// Add import names to list of imported memories
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self.module.imported_memories.push((import_name, memory));
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}
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/// Fills a declared memory with bytes at module instantiation.
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fn declare_data_initialization(
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&mut self,
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memory_index: cranelift_wasm::MemoryIndex,
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base: Option<cranelift_wasm::GlobalIndex>,
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offset: usize,
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data: &'data [u8],
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) {
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// Convert Cranelift GlobalIndex to wamser GlobalIndex
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let base = match base {
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Some(global_index) => {
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let global_index: GlobalIndex = Converter(global_index).into();
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Initializer::GetGlobal(match global_index.local_or_import(self.module) {
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LocalOrImport::Import(imported_global_index) => imported_global_index,
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LocalOrImport::Local(_) => {
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panic!("invalid global initializer when declaring an imported global")
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}
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})
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}
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None => Initializer::Const((offset as i32).into()),
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};
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// Add data initializer to list of data initializers
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self.module.data_initializers.push(DataInitializer {
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memory_index: Converter(memory_index).into(),
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base,
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data: data.to_vec(),
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});
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}
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/// Declares a function export to the environment.
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fn declare_func_export(&mut self, func_index: cranelift_wasm::FuncIndex, name: &'data str) {
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self.module.exports.insert(
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name.to_string(),
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ExportIndex::Func(Converter(func_index).into()),
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);
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}
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/// Declares a table export to the environment.
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fn declare_table_export(&mut self, table_index: cranelift_wasm::TableIndex, name: &'data str) {
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self.module.exports.insert(
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name.to_string(),
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ExportIndex::Table(Converter(table_index).into()),
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);
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}
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/// Declares a memory export to the environment.
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fn declare_memory_export(
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&mut self,
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|
memory_index: cranelift_wasm::MemoryIndex,
|
|
|
|
name: &'data str,
|
|
|
|
) {
|
|
|
|
self.module.exports.insert(
|
|
|
|
name.to_string(),
|
|
|
|
ExportIndex::Memory(Converter(memory_index).into()),
|
|
|
|
);
|
|
|
|
}
|
|
|
|
/// Declares a global export to the environment.
|
|
|
|
fn declare_global_export(
|
|
|
|
&mut self,
|
|
|
|
global_index: cranelift_wasm::GlobalIndex,
|
|
|
|
name: &'data str,
|
|
|
|
) {
|
|
|
|
self.module.exports.insert(
|
|
|
|
name.to_string(),
|
|
|
|
ExportIndex::Global(Converter(global_index).into()),
|
|
|
|
);
|
|
|
|
}
|
|
|
|
|
|
|
|
/// Declares a start function.
|
|
|
|
fn declare_start_func(&mut self, func_index: cranelift_wasm::FuncIndex) {
|
|
|
|
self.module.start_func = Some(Converter(func_index).into());
|
|
|
|
}
|
|
|
|
|
|
|
|
/// Provides the contents of a function body.
|
|
|
|
fn define_function_body(&mut self, body_bytes: &'data [u8]) -> cranelift_wasm::WasmResult<()> {
|
|
|
|
let mut func_translator = FuncTranslator::new();
|
|
|
|
|
|
|
|
let func_body = {
|
|
|
|
let mut func_env = FuncEnv::new(self);
|
|
|
|
let func_index = self.func_bodies.next_index();
|
|
|
|
let name = ir::ExternalName::user(0, func_index.index() as u32);
|
|
|
|
|
|
|
|
let sig = func_env.generate_signature(
|
|
|
|
self.get_func_type(Converter(func_index.convert_up(self.module)).into()),
|
|
|
|
);
|
|
|
|
|
|
|
|
let mut func = ir::Function::with_name_signature(name, sig);
|
|
|
|
|
|
|
|
func_translator.translate(body_bytes, &mut func, &mut func_env)?;
|
|
|
|
|
2019-02-06 23:43:27 +00:00
|
|
|
#[cfg(feature = "debug")]
|
|
|
|
{
|
|
|
|
use cranelift_codegen::cursor::{Cursor, FuncCursor};
|
|
|
|
use cranelift_codegen::ir::InstBuilder;
|
|
|
|
let entry_ebb = func.layout.entry_block().unwrap();
|
|
|
|
let ebb = func.dfg.make_ebb();
|
|
|
|
func.layout.insert_ebb(ebb, entry_ebb);
|
|
|
|
let mut pos = FuncCursor::new(&mut func).at_first_insertion_point(ebb);
|
|
|
|
let params = pos.func.dfg.ebb_params(entry_ebb).to_vec();
|
|
|
|
|
|
|
|
let new_ebb_params: Vec<_> = params
|
|
|
|
.iter()
|
|
|
|
.map(|¶m| {
|
|
|
|
pos.func
|
|
|
|
.dfg
|
|
|
|
.append_ebb_param(ebb, pos.func.dfg.value_type(param))
|
|
|
|
})
|
|
|
|
.collect();
|
|
|
|
|
|
|
|
let start_debug = {
|
|
|
|
let signature = pos.func.import_signature(ir::Signature {
|
|
|
|
call_conv: self.target_config().default_call_conv,
|
|
|
|
params: vec![
|
|
|
|
ir::AbiParam::new(ir::types::I32),
|
|
|
|
ir::AbiParam::special(ir::types::I64, ir::ArgumentPurpose::VMContext),
|
|
|
|
],
|
|
|
|
returns: vec![],
|
|
|
|
});
|
|
|
|
|
|
|
|
let name = ir::ExternalName::testcase("strtdbug");
|
|
|
|
|
|
|
|
pos.func.import_function(ir::ExtFuncData {
|
|
|
|
name,
|
|
|
|
signature,
|
|
|
|
colocated: false,
|
|
|
|
})
|
|
|
|
};
|
|
|
|
|
|
|
|
let end_debug = {
|
|
|
|
let signature = pos.func.import_signature(ir::Signature {
|
|
|
|
call_conv: self.target_config().default_call_conv,
|
|
|
|
params: vec![ir::AbiParam::special(
|
|
|
|
ir::types::I64,
|
|
|
|
ir::ArgumentPurpose::VMContext,
|
|
|
|
)],
|
|
|
|
returns: vec![],
|
|
|
|
});
|
|
|
|
|
|
|
|
let name = ir::ExternalName::testcase("enddbug");
|
|
|
|
|
|
|
|
pos.func.import_function(ir::ExtFuncData {
|
|
|
|
name,
|
|
|
|
signature,
|
|
|
|
colocated: false,
|
|
|
|
})
|
|
|
|
};
|
|
|
|
|
|
|
|
let i32_print = {
|
|
|
|
let signature = pos.func.import_signature(ir::Signature {
|
|
|
|
call_conv: self.target_config().default_call_conv,
|
|
|
|
params: vec![
|
|
|
|
ir::AbiParam::new(ir::types::I32),
|
|
|
|
ir::AbiParam::special(ir::types::I64, ir::ArgumentPurpose::VMContext),
|
|
|
|
],
|
|
|
|
returns: vec![],
|
|
|
|
});
|
|
|
|
|
|
|
|
let name = ir::ExternalName::testcase("i32print");
|
|
|
|
|
|
|
|
pos.func.import_function(ir::ExtFuncData {
|
|
|
|
name,
|
|
|
|
signature,
|
|
|
|
colocated: false,
|
|
|
|
})
|
|
|
|
};
|
|
|
|
|
|
|
|
let i64_print = {
|
|
|
|
let signature = pos.func.import_signature(ir::Signature {
|
|
|
|
call_conv: self.target_config().default_call_conv,
|
|
|
|
params: vec![
|
|
|
|
ir::AbiParam::new(ir::types::I64),
|
|
|
|
ir::AbiParam::special(ir::types::I64, ir::ArgumentPurpose::VMContext),
|
|
|
|
],
|
|
|
|
returns: vec![],
|
|
|
|
});
|
|
|
|
|
|
|
|
let name = ir::ExternalName::testcase("i64print");
|
|
|
|
|
|
|
|
pos.func.import_function(ir::ExtFuncData {
|
|
|
|
name,
|
|
|
|
signature,
|
|
|
|
colocated: false,
|
|
|
|
})
|
|
|
|
};
|
|
|
|
|
|
|
|
let f32_print = {
|
|
|
|
let signature = pos.func.import_signature(ir::Signature {
|
|
|
|
call_conv: self.target_config().default_call_conv,
|
|
|
|
params: vec![
|
|
|
|
ir::AbiParam::new(ir::types::F32),
|
|
|
|
ir::AbiParam::special(ir::types::I64, ir::ArgumentPurpose::VMContext),
|
|
|
|
],
|
|
|
|
returns: vec![],
|
|
|
|
});
|
|
|
|
|
|
|
|
let name = ir::ExternalName::testcase("f32print");
|
|
|
|
|
|
|
|
pos.func.import_function(ir::ExtFuncData {
|
|
|
|
name,
|
|
|
|
signature,
|
|
|
|
colocated: false,
|
|
|
|
})
|
|
|
|
};
|
|
|
|
|
|
|
|
let f64_print = {
|
|
|
|
let signature = pos.func.import_signature(ir::Signature {
|
|
|
|
call_conv: self.target_config().default_call_conv,
|
|
|
|
params: vec![
|
|
|
|
ir::AbiParam::new(ir::types::F64),
|
|
|
|
ir::AbiParam::special(ir::types::I64, ir::ArgumentPurpose::VMContext),
|
|
|
|
],
|
|
|
|
returns: vec![],
|
|
|
|
});
|
|
|
|
|
|
|
|
let name = ir::ExternalName::testcase("f64print");
|
|
|
|
|
|
|
|
pos.func.import_function(ir::ExtFuncData {
|
|
|
|
name,
|
|
|
|
signature,
|
|
|
|
colocated: false,
|
|
|
|
})
|
|
|
|
};
|
|
|
|
|
|
|
|
let vmctx = pos
|
|
|
|
.func
|
|
|
|
.special_param(ir::ArgumentPurpose::VMContext)
|
|
|
|
.expect("missing vmctx parameter");
|
|
|
|
|
|
|
|
let func_index = pos.ins().iconst(ir::types::I32, func_index.index() as i64);
|
|
|
|
|
|
|
|
pos.ins().call(start_debug, &[func_index, vmctx]);
|
|
|
|
|
|
|
|
for param in new_ebb_params.iter().cloned() {
|
|
|
|
match pos.func.dfg.value_type(param) {
|
|
|
|
ir::types::I32 => pos.ins().call(i32_print, &[param, vmctx]),
|
|
|
|
ir::types::I64 => pos.ins().call(i64_print, &[param, vmctx]),
|
|
|
|
ir::types::F32 => pos.ins().call(f32_print, &[param, vmctx]),
|
|
|
|
ir::types::F64 => pos.ins().call(f64_print, &[param, vmctx]),
|
|
|
|
_ => unimplemented!(),
|
|
|
|
};
|
|
|
|
}
|
|
|
|
|
|
|
|
pos.ins().call(end_debug, &[vmctx]);
|
|
|
|
|
|
|
|
pos.ins().jump(entry_ebb, new_ebb_params.as_slice());
|
|
|
|
}
|
|
|
|
|
2019-01-17 01:59:12 +00:00
|
|
|
func
|
|
|
|
};
|
|
|
|
|
|
|
|
// Add function body to list of function bodies.
|
|
|
|
self.func_bodies.push(func_body);
|
|
|
|
|
|
|
|
Ok(())
|
|
|
|
}
|
|
|
|
}
|