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Add new global import api

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This commit is contained in:
Lachlan Sneff
2019-01-28 11:55:44 -08:00
parent 1be20b19e7
commit 98305c8731
16 changed files with 209 additions and 229 deletions
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68
lib/clif-backend/src/func_env.rs
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@ -73,59 +73,59 @@ impl<'env, 'module, 'isa> FuncEnvironment for FuncEnv<'env, 'module, 'isa> {
let vmctx = func.create_global_value(ir::GlobalValueData::VMContext);
let ptr_type = self.pointer_type();
match global_index.local_or_import(self.env.module) {
let local_global_addr = match global_index.local_or_import(self.env.module) {
LocalOrImport::Local(local_global_index) => {
let globals_base_addr = func.create_global_value(ir::GlobalValueData::Load {
base: vmctx,
offset: (vm::Ctx::offset_globals() as i32).into(),
global_type: self.pointer_type(),
global_type: ptr_type,
readonly: true,
});
let offset = local_global_index.index() * vm::LocalGlobal::size() as usize;
let offset = local_global_index.index() * mem::size_of::<*mut vm::LocalGlobal>();
let local_global_addr = func.create_global_value(ir::GlobalValueData::IAddImm {
let local_global_ptr_ptr = func.create_global_value(ir::GlobalValueData::IAddImm {
base: globals_base_addr,
offset: (offset as i64).into(),
global_type: ptr_type,
});
// Create global variable based on the data above.
cranelift_wasm::GlobalVariable::Memory {
gv: local_global_addr,
offset: (vm::LocalGlobal::offset_data() as i32).into(),
ty: self.env.get_global(clif_global_index).ty,
}
}
LocalOrImport::Import(imported_global_index) => {
let imported_globals_base_addr =
func.create_global_value(ir::GlobalValueData::Load {
base: vmctx,
offset: (vm::Ctx::offset_imported_globals() as i32).into(),
global_type: ptr_type,
readonly: true,
});
let offset = imported_global_index.index() * vm::ImportedGlobal::size() as usize;
let imported_global_addr = func.create_global_value(ir::GlobalValueData::IAddImm {
base: imported_globals_base_addr,
offset: (offset as i64).into(),
func.create_global_value(ir::GlobalValueData::Load {
base: local_global_ptr_ptr,
offset: 0.into(),
global_type: ptr_type,
});
let local_global_addr = func.create_global_value(ir::GlobalValueData::Load {
base: imported_global_addr,
offset: (vm::ImportedGlobal::offset_global() as i32).into(),
readonly: true,
})
}
LocalOrImport::Import(import_global_index) => {
let globals_base_addr = func.create_global_value(ir::GlobalValueData::Load {
base: vmctx,
offset: (vm::Ctx::offset_imported_globals() as i32).into(),
global_type: ptr_type,
readonly: true,
});
cranelift_wasm::GlobalVariable::Memory {
gv: local_global_addr,
offset: (vm::LocalGlobal::offset_data() as i32).into(),
ty: self.env.get_global(clif_global_index).ty,
}
let offset = import_global_index.index() * mem::size_of::<*mut vm::LocalGlobal>();
let local_global_ptr_ptr = func.create_global_value(ir::GlobalValueData::IAddImm {
base: globals_base_addr,
offset: (offset as i64).into(),
global_type: ptr_type,
});
func.create_global_value(ir::GlobalValueData::Load {
base: local_global_ptr_ptr,
offset: 0.into(),
global_type: ptr_type,
readonly: true,
})
}
};
cranelift_wasm::GlobalVariable::Memory {
gv: local_global_addr,
offset: (vm::LocalGlobal::offset_data() as i32).into(),
ty: self.env.get_global(clif_global_index).ty,
}
}