muirbuilder.rs 66.4 KB
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use super::common::*;
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use ast::op::*;
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use ast::inst::*;
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use std;
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pub struct MuIRBuilder {
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    /// ref to MuVM
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    mvm: *const MuVM,
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    /// Point to the C-visible CMuIRBuilder so that `load` and `abort` can deallocate itself.
    pub c_struct: *mut CMuIRBuilder,

    /// Map IDs to names. Items are inserted during `gen_sym`. MuIRBuilder is supposed to be used
    /// by one thread, so there is no need for locking.
    id_name_map: HashMap<MuID, MuName>,

    /// The "trantient bundle" includes everything being built here.
    bundle: TrantientBundle,
}

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pub type IdBMap<T> = HashMap<MuID, Box<T>>;
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/// A trantient bundle, i.e. the bundle being built, but not yet loaded into the MuVM.
#[derive(Default)]
pub struct TrantientBundle {
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    types: IdBMap<NodeType>,
    sigs: IdBMap<NodeFuncSig>,
    consts: IdBMap<NodeConst>,
    globals: IdBMap<NodeGlobalCell>,
    funcs: IdBMap<NodeFunc>,
    expfuncs: IdBMap<NodeExpFunc>,
    funcvers: IdBMap<NodeFuncVer>,
    bbs: IdBMap<NodeBB>,
    insts: IdBMap<NodeInst>,
    dest_clauses: IdBMap<NodeDestClause>,
    exc_clauses: IdBMap<NodeExcClause>,
    ka_clauses: IdBMap<NodeKeepaliveClause>,
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}

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impl MuIRBuilder {
    pub fn new(mvm: *const MuVM) -> Box<MuIRBuilder> {
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        Box::new(MuIRBuilder {
            mvm: mvm,
            c_struct: ptr::null_mut(),
            id_name_map: Default::default(),
            bundle: Default::default(),
        })
    }
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    #[inline(always)]
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    fn get_mvm<'a, 'b>(&'a mut self) -> &'b MuVM {
        //self.mvm
        unsafe { & *self.mvm }
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    }

    #[inline(always)]
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    fn get_vm<'a, 'b>(&'a mut self) -> &'b VM {
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        &self.get_mvm().vm
    }

    #[inline(always)]
    fn next_id(&mut self) -> MuID {
        self.get_vm().next_id()
    }

    fn deallocate(&mut self) {
        let c_struct = self.c_struct;
        let b_ptr = self as *mut MuIRBuilder;
        debug!("Deallocating MuIRBuilder {:?} and CMuIRBuilder {:?}...", b_ptr, c_struct);
        unsafe {
            Box::from_raw(c_struct);
            Box::from_raw(b_ptr);
        }
    }

    /// Get the Mu name of the `id`. This will consume the entry in the `id_name_map`. For this
    /// reason, this function is only called when the actual MuEntity that has this ID is created
    /// (such as `new_type_int`).
    fn consume_name_of(&mut self, id: MuID) -> Option<MuName> {
        self.id_name_map.remove(&id)
    }

    pub fn load(&mut self) {
        load_bundle(self);
        self.deallocate();
    }

    pub fn abort(&mut self) {
        info!("Aborting boot image building...");
        self.deallocate();
    }

    pub fn gen_sym(&mut self, name: Option<String>) -> MuID {
        let my_id = self.next_id();

        debug!("gen_sym({:?}) -> {}", name, my_id);

        match name {
            None => {},
            Some(the_name) => {
                let old = self.id_name_map.insert(my_id, the_name);
                debug_assert!(old.is_none(), "ID already exists: {}, new name: {}, old name: {}",
                my_id, self.id_name_map.get(&my_id).unwrap(), old.unwrap());
            },
        };

        my_id
    }

    pub fn new_type_int(&mut self, id: MuID, len: c_int) {
        self.bundle.types.insert(id, Box::new(NodeType::TypeInt { id: id, len: len }));
    }

    pub fn new_type_float(&mut self, id: MuID) {
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        self.bundle.types.insert(id, Box::new(NodeType::TypeFloat { id: id }));
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    }

    pub fn new_type_double(&mut self, id: MuID) {
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        self.bundle.types.insert(id, Box::new(NodeType::TypeDouble { id: id }));
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    }

    pub fn new_type_uptr(&mut self, id: MuID, ty: MuID) {
        self.bundle.types.insert(id, Box::new(NodeType::TypeUPtr{ id: id,
            ty: ty }));
    }

    pub fn new_type_ufuncptr(&mut self, id: MuID, sig: MuID) {
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        self.bundle.types.insert(id, Box::new(NodeType::TypeUFuncPtr{ id: id,
            sig: sig }));
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    }

    pub fn new_type_struct(&mut self, id: MuID, fieldtys: Vec<MuID>) {
        self.bundle.types.insert(id, Box::new(NodeType::TypeStruct { id: id,
            fieldtys: fieldtys }));
    }

    pub fn new_type_hybrid(&mut self, id: MuID, fixedtys: Vec<MuID>, varty: MuID) {
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        self.bundle.types.insert(id, Box::new(NodeType::TypeHybrid { id: id,
            fixedtys: fixedtys, varty: varty }));
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    }

    pub fn new_type_array(&mut self, id: MuID, elemty: MuID, len: u64) {
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        self.bundle.types.insert(id, Box::new(NodeType::TypeArray { id: id,
            elemty: elemty, len: len as usize }));
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    }

    pub fn new_type_vector(&mut self, id: MuID, elemty: MuID, len: u64) {
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        self.bundle.types.insert(id, Box::new(NodeType::TypeVector { id: id,
            elemty: elemty, len: len as usize }));
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    }

    pub fn new_type_void(&mut self, id: MuID) {
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        self.bundle.types.insert(id, Box::new(NodeType::TypeVoid { id: id }));
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    }

    pub fn new_type_ref(&mut self, id: MuID, ty: MuID) {
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        self.bundle.types.insert(id, Box::new(NodeType::TypeRef{ id: id,
            ty: ty }));
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    }

    pub fn new_type_iref(&mut self, id: MuID, ty: MuID) {
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        self.bundle.types.insert(id, Box::new(NodeType::TypeIRef{ id: id,
            ty: ty }));
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    }

    pub fn new_type_weakref(&mut self, id: MuID, ty: MuID) {
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        self.bundle.types.insert(id, Box::new(NodeType::TypeWeakRef{ id: id,
            ty: ty }));
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    }

    pub fn new_type_funcref(&mut self, id: MuID, sig: MuID) {
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        self.bundle.types.insert(id, Box::new(NodeType::TypeFuncRef{ id: id,
            sig: sig }));
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    }

    pub fn new_type_tagref64(&mut self, id: MuID) {
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        self.bundle.types.insert(id, Box::new(NodeType::TypeTagRef64 { id: id }));
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    }

    pub fn new_type_threadref(&mut self, id: MuID) {
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        self.bundle.types.insert(id, Box::new(NodeType::TypeThreadRef { id: id }));
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    }

    pub fn new_type_stackref(&mut self, id: MuID) {
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        self.bundle.types.insert(id, Box::new(NodeType::TypeStackRef { id: id }));
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    }

    pub fn new_type_framecursorref(&mut self, id: MuID) {
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        self.bundle.types.insert(id, Box::new(NodeType::TypeFrameCursorRef { id: id }));
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    }

    pub fn new_type_irbuilderref(&mut self, id: MuID) {
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        self.bundle.types.insert(id, Box::new(NodeType::TypeIRBuilderRef { id: id }));
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    }

    pub fn new_funcsig(&mut self, id: MuID, paramtys: Vec<MuID>, rettys: Vec<MuID>) {
        self.bundle.sigs.insert(id, Box::new(NodeFuncSig { id: id,
            paramtys: paramtys, rettys: rettys }));
    }

    pub fn new_const_int(&mut self, id: MuID, ty: MuID, value: u64) {
        self.bundle.consts.insert(id, Box::new(NodeConst::ConstInt { id: id,
            ty: ty, value: value }));
    }

    pub fn new_const_int_ex(&mut self, id: MuID, ty: MuID, values: &[u64]) {
        panic!("Not implemented")
    }

    pub fn new_const_float(&mut self, id: MuID, ty: MuID, value: f32) {
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        self.bundle.consts.insert(id, Box::new(NodeConst::ConstFloat { id: id,
            ty: ty, value: value }));
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    }

    pub fn new_const_double(&mut self, id: MuID, ty: MuID, value: f64) {
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        self.bundle.consts.insert(id, Box::new(NodeConst::ConstDouble { id: id,
            ty: ty, value: value }));
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    }

    pub fn new_const_null(&mut self, id: MuID, ty: MuID) {
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        self.bundle.consts.insert(id, Box::new(NodeConst::ConstNull { id: id,
            ty: ty }));
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    }

    pub fn new_const_seq(&mut self, id: MuID, ty: MuID, elems: Vec<MuID>) {
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        self.bundle.consts.insert(id, Box::new(NodeConst::ConstSeq { id: id,
            ty: ty, elems: elems }));
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    }

    pub fn new_const_extern(&mut self, id: MuID, ty: MuID, symbol: String) {
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        self.bundle.consts.insert(id, Box::new(NodeConst::ConstExtern { id: id,
            ty: ty, symbol: symbol }));
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    }

    pub fn new_global_cell(&mut self, id: MuID, ty: MuID) {
        self.bundle.globals.insert(id, Box::new(NodeGlobalCell { id: id,
            ty: ty }));
    }

    pub fn new_func(&mut self, id: MuID, sig: MuID) {
        self.bundle.funcs.insert(id, Box::new(NodeFunc { id: id,
            sig: sig }));
    }

    pub fn new_exp_func(&mut self, id: MuID, func: MuID, callconv: CMuCallConv, cookie: MuID) {
        panic!("Not implemented")
    }

    pub fn new_func_ver(&mut self, id: MuID, func: MuID, bbs: Vec<MuID>) {
        self.bundle.funcvers.insert(id, Box::new(NodeFuncVer { id: id,
            func: func, bbs: bbs }));
    }

    pub fn new_bb(&mut self, id: MuID, nor_param_ids: Vec<MuID>, nor_param_types: Vec<MuID>, exc_param_id: Option<MuID>, insts: Vec<MuID>) {
        self.bundle.bbs.insert(id, Box::new(NodeBB { id: id,
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            nor_param_ids: nor_param_ids, nor_param_types: nor_param_types,
            exc_param_id: exc_param_id, insts: insts }));
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    }

    pub fn new_dest_clause(&mut self, id: MuID, dest: MuID, vars: Vec<MuID>) {
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        self.bundle.dest_clauses.insert(id, Box::new(NodeDestClause { id: id,
            dest: dest, vars: vars }));
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    }

    pub fn new_exc_clause(&mut self, id: MuID, nor: MuID, exc: MuID) {
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        self.bundle.exc_clauses.insert(id, Box::new(NodeExcClause { id: id,
            nor: nor, exc: exc }));
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    }

    pub fn new_keepalive_clause(&mut self, id: MuID, vars: Vec<MuID>) {
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        self.bundle.ka_clauses.insert(id, Box::new(NodeKeepaliveClause { id: id,
            vars: vars }));
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    }

    pub fn new_csc_ret_with(&mut self, id: MuID, rettys: Vec<MuID>) {
        panic!("Not implemented")
    }

    pub fn new_csc_kill_old(&mut self, id: MuID) {
        panic!("Not implemented")
    }

    pub fn new_nsc_pass_values(&mut self, id: MuID, tys: Vec<MuID>, vars: Vec<MuID>) {
        panic!("Not implemented")
    }

    pub fn new_nsc_throw_exc(&mut self, id: MuID, exc: MuID) {
        panic!("Not implemented")
    }

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    #[inline(always)]
    fn add_inst(&mut self, id: MuID, inst: NodeInst) {
        self.bundle.insts.insert(id, Box::new(inst));
    }

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    pub fn new_binop(&mut self, id: MuID, result_id: MuID, optr: CMuBinOptr, ty: MuID, opnd1: MuID, opnd2: MuID, exc_clause: Option<MuID>) {
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        self.add_inst(id, NodeInst::NodeBinOp {
            id: id, result_id: result_id, status_result_ids: vec![],
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            optr: optr, flags: 0, ty: ty, opnd1: opnd1, opnd2: opnd2,
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            exc_clause: exc_clause
        });
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    }

    pub fn new_binop_with_status(&mut self, id: MuID, result_id: MuID, status_result_ids: Vec<MuID>, optr: CMuBinOptr, status_flags: CMuBinOpStatus, ty: MuID, opnd1: MuID, opnd2: MuID, exc_clause: Option<MuID>) {
        panic!("Not implemented")
    }

    pub fn new_cmp(&mut self, id: MuID, result_id: MuID, optr: CMuCmpOptr, ty: MuID, opnd1: MuID, opnd2: MuID) {
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        self.add_inst(id, NodeInst::NodeCmp {
            id: id, result_id: result_id,
            optr: optr, ty: ty, opnd1: opnd1, opnd2: opnd2
        });
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    }

    pub fn new_conv(&mut self, id: MuID, result_id: MuID, optr: CMuConvOptr, from_ty: MuID, to_ty: MuID, opnd: MuID) {
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        self.add_inst(id, NodeInst::NodeConv {
            id: id, result_id: result_id,
            optr: optr, from_ty: from_ty, to_ty: to_ty, opnd: opnd
        });
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    }

    pub fn new_select(&mut self, id: MuID, result_id: MuID, cond_ty: MuID, opnd_ty: MuID, cond: MuID, if_true: MuID, if_false: MuID) {
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        self.add_inst(id, NodeInst::NodeSelect {
            id: id, result_id: result_id,
            cond_ty: cond_ty, opnd_ty: opnd_ty, cond: cond,
            if_true: if_true, if_false: if_false
        });
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    }

    pub fn new_branch(&mut self, id: MuID, dest: MuID) {
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        self.add_inst(id, NodeInst::NodeBranch {
            id: id, dest: dest
        });
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    }

    pub fn new_branch2(&mut self, id: MuID, cond: MuID, if_true: MuID, if_false: MuID) {
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        self.add_inst(id, NodeInst::NodeBranch2 {
            id: id, cond: cond, if_true: if_true, if_false: if_false
        });
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    }

    pub fn new_switch(&mut self, id: MuID, opnd_ty: MuID, opnd: MuID, default_dest: MuID, cases: Vec<MuID>, dests: Vec<MuID>) {
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        self.add_inst(id, NodeInst::NodeSwitch {
            id: id, opnd_ty: opnd_ty, opnd: opnd, default_dest: default_dest,
            cases: cases, dests: dests
        });
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    }

    pub fn new_call(&mut self, id: MuID, result_ids: Vec<MuID>, sig: MuID, callee: MuID, args: Vec<MuID>, exc_clause: Option<MuID>, keepalive_clause: Option<MuID>) {
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        self.add_inst(id, NodeInst::NodeCall {
            id: id, result_ids: result_ids,
            sig: sig, callee: callee, args: args,
            exc_clause: exc_clause, keepalive_clause: keepalive_clause
        });
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    }

    pub fn new_tailcall(&mut self, id: MuID, sig: MuID, callee: MuID, args: Vec<MuID>) {
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        self.add_inst(id, NodeInst::NodeTailCall {
            id: id, sig: sig, callee: callee, args: args
        });
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    }

    pub fn new_ret(&mut self, id: MuID, rvs: Vec<MuID>) {
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        self.add_inst(id, NodeInst::NodeRet {
            id: id, rvs: rvs
        });
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    }

    pub fn new_throw(&mut self, id: MuID, exc: MuID) {
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        self.add_inst(id, NodeInst::NodeThrow {
            id: id, exc: exc
        });
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    }

    pub fn new_extractvalue(&mut self, id: MuID, result_id: MuID, strty: MuID, index: c_int, opnd: MuID) {
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        self.add_inst(id, NodeInst::NodeExtractValue {
            id: id, result_id: result_id, strty: strty, index: index, opnd: opnd
        });
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    }

    pub fn new_insertvalue(&mut self, id: MuID, result_id: MuID, strty: MuID, index: c_int, opnd: MuID, newval: MuID) {
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        self.add_inst(id, NodeInst::NodeInsertValue {
            id: id, result_id: result_id, strty: strty, index: index, opnd: opnd, newval: newval
        });
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    }

    pub fn new_extractelement(&mut self, id: MuID, result_id: MuID, seqty: MuID, indty: MuID, opnd: MuID, index: MuID) {
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        self.add_inst(id, NodeInst::NodeExtractElement {
            id: id, result_id: result_id, seqty: seqty, indty: indty, opnd: opnd, index: index
        });
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    }

    pub fn new_insertelement(&mut self, id: MuID, result_id: MuID, seqty: MuID, indty: MuID, opnd: MuID, index: MuID, newval: MuID) {
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        self.add_inst(id, NodeInst::NodeInsertElement {
            id: id, result_id: result_id, seqty: seqty, indty: indty, opnd: opnd, index: index, newval: newval
        });
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    }

    pub fn new_shufflevector(&mut self, id: MuID, result_id: MuID, vecty: MuID, maskty: MuID, vec1: MuID, vec2: MuID, mask: MuID) {
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        self.add_inst(id, NodeInst::NodeShuffleVector {
            id: id, result_id: result_id, vecty: vecty, maskty: maskty, vec1: vec1, vec2: vec2, mask: mask
        });
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    }

    pub fn new_new(&mut self, id: MuID, result_id: MuID, allocty: MuID, exc_clause: Option<MuID>) {
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        self.add_inst(id, NodeInst::NodeNew {
            id: id, result_id: result_id, allocty: allocty, exc_clause: exc_clause
        });
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    }

    pub fn new_newhybrid(&mut self, id: MuID, result_id: MuID, allocty: MuID, lenty: MuID, length: MuID, exc_clause: Option<MuID>) {
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        self.add_inst(id, NodeInst::NodeNewHybrid {
            id: id, result_id: result_id, allocty: allocty, lenty: lenty, length: length, exc_clause: exc_clause
        });
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    }

    pub fn new_alloca(&mut self, id: MuID, result_id: MuID, allocty: MuID, exc_clause: Option<MuID>) {
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        self.add_inst(id, NodeInst::NodeAlloca {
            id: id, result_id: result_id, allocty: allocty, exc_clause: exc_clause
        });
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    }

    pub fn new_allocahybrid(&mut self, id: MuID, result_id: MuID, allocty: MuID, lenty: MuID, length: MuID, exc_clause: Option<MuID>) {
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        self.add_inst(id, NodeInst::NodeAllocaHybrid {
            id: id, result_id: result_id, allocty: allocty, lenty: lenty, length: length, exc_clause: exc_clause
        });
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    }

    pub fn new_getiref(&mut self, id: MuID, result_id: MuID, refty: MuID, opnd: MuID) {
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        self.add_inst(id, NodeInst::NodeGetIRef {
            id: id, result_id: result_id, refty: refty, opnd: opnd
        });
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    }

    pub fn new_getfieldiref(&mut self, id: MuID, result_id: MuID, is_ptr: bool, refty: MuID, index: c_int, opnd: MuID) {
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        self.add_inst(id, NodeInst::NodeGetFieldIRef {
            id: id, result_id: result_id, is_ptr: is_ptr, refty: refty, index: index, opnd: opnd
        });
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    }

    pub fn new_getelemiref(&mut self, id: MuID, result_id: MuID, is_ptr: bool, refty: MuID, indty: MuID, opnd: MuID, index: MuID) {
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        self.add_inst(id, NodeInst::NodeGetElemIRef {
            id: id, result_id: result_id, is_ptr: is_ptr, refty: refty, indty: indty, opnd: opnd, index: index
        });
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    }

    pub fn new_shiftiref(&mut self, id: MuID, result_id: MuID, is_ptr: bool, refty: MuID, offty: MuID, opnd: MuID, offset: MuID) {
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        self.add_inst(id, NodeInst::NodeShiftIRef {
            id: id, result_id: result_id, is_ptr: is_ptr, refty: refty, offty: offty, opnd: opnd, offset: offset
        });
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    }

    pub fn new_getvarpartiref(&mut self, id: MuID, result_id: MuID, is_ptr: bool, refty: MuID, opnd: MuID) {
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        self.add_inst(id, NodeInst::NodeGetVarPartIRef {
            id: id, result_id: result_id, is_ptr: is_ptr, refty: refty, opnd: opnd
        });
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    }

    pub fn new_load(&mut self, id: MuID, result_id: MuID, is_ptr: bool, ord: CMuMemOrd, refty: MuID, loc: MuID, exc_clause: Option<MuID>) {
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        self.add_inst(id, NodeInst::NodeLoad {
            id: id, result_id: result_id, is_ptr: is_ptr, ord: ord, refty: refty, loc: loc, exc_clause: exc_clause
        });
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    }

    pub fn new_store(&mut self, id: MuID, is_ptr: bool, ord: CMuMemOrd, refty: MuID, loc: MuID, newval: MuID, exc_clause: Option<MuID>) {
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        self.add_inst(id, NodeInst::NodeStore {
            id: id, is_ptr: is_ptr, ord: ord, refty: refty, loc: loc, newval: newval, exc_clause: exc_clause
        });
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    }

    pub fn new_cmpxchg(&mut self, id: MuID, value_result_id: MuID, succ_result_id: MuID, is_ptr: bool, is_weak: bool, ord_succ: CMuMemOrd, ord_fail: CMuMemOrd, refty: MuID, loc: MuID, expected: MuID, desired: MuID, exc_clause: Option<MuID>) {
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        self.add_inst(id, NodeInst::NodeCmpXchg {
            id: id, value_result_id: value_result_id, succ_result_id: succ_result_id, is_ptr: is_ptr, is_weak: is_weak, ord_succ: ord_succ, ord_fail: ord_fail, refty: refty, loc: loc, expected: expected, desired: desired, exc_clause: exc_clause
        });
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    }

    pub fn new_atomicrmw(&mut self, id: MuID, result_id: MuID, is_ptr: bool, ord: CMuMemOrd, optr: CMuAtomicRMWOptr, ref_ty: MuID, loc: MuID, opnd: MuID, exc_clause: Option<MuID>) {
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        self.add_inst(id, NodeInst::NodeAtomicRMW {
            id: id, result_id: result_id, is_ptr: is_ptr, ord: ord, optr: optr, ref_ty: ref_ty, loc: loc, opnd: opnd, exc_clause: exc_clause
        });
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    }

    pub fn new_fence(&mut self, id: MuID, ord: CMuMemOrd) {
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        self.add_inst(id, NodeInst::NodeFence {
            id: id, ord: ord,
        });
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    }

    pub fn new_trap(&mut self, id: MuID, result_ids: Vec<MuID>, rettys: Vec<MuID>, exc_clause: Option<MuID>, keepalive_clause: Option<MuID>) {
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        self.add_inst(id, NodeInst::NodeTrap {
            id: id, result_ids: result_ids, rettys: rettys, exc_clause: exc_clause, keepalive_clause: keepalive_clause
        });
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    }

    pub fn new_watchpoint(&mut self, id: MuID, wpid: CMuWPID, result_ids: Vec<MuID>, rettys: Vec<MuID>, dis: MuID, ena: MuID, exc: Option<MuID>, keepalive_clause: Option<MuID>) {
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        self.add_inst(id, NodeInst::NodeWatchPoint {
            id: id, wpid: wpid as MuID, result_ids: result_ids, rettys: rettys, dis: dis, ena: ena, exc: exc, keepalive_clause: keepalive_clause
        });
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    }

    pub fn new_wpbranch(&mut self, id: MuID, wpid: CMuWPID, dis: MuID, ena: MuID) {
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        self.add_inst(id, NodeInst::NodeWPBranch {
            id: id, wpid: wpid as MuID, dis: dis, ena: ena
        });
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    }

    pub fn new_ccall(&mut self, id: MuID, result_ids: Vec<MuID>, callconv: CMuCallConv, callee_ty: MuID, sig: MuID, callee: MuID, args: Vec<MuID>, exc_clause: Option<MuID>, keepalive_clause: Option<MuID>) {
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        self.add_inst(id, NodeInst::NodeCCall {
            id: id, result_ids: result_ids, callconv: callconv, callee_ty: callee_ty, sig: sig, callee: callee, args: args, exc_clause: exc_clause, keepalive_clause: keepalive_clause
        });
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    }

    pub fn new_newthread(&mut self, id: MuID, result_id: MuID, stack: MuID, threadlocal: Option<MuID>, new_stack_clause: MuID, exc_clause: Option<MuID>) {
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        self.add_inst(id, NodeInst::NodeNewThread {
            id: id, result_id: result_id, stack: stack, threadlocal: threadlocal, new_stack_clause: new_stack_clause, exc_clause: exc_clause
        });
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    }

    pub fn new_swapstack(&mut self, id: MuID, result_ids: Vec<MuID>, swappee: MuID, cur_stack_clause: MuID, new_stack_clause: MuID, exc_clause: Option<MuID>, keepalive_clause: Option<MuID>) {
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        self.add_inst(id, NodeInst::NodeSwapStack {
            id: id, result_ids: result_ids, swappee: swappee, cur_stack_clause: cur_stack_clause, new_stack_clause: new_stack_clause, exc_clause: exc_clause, keepalive_clause: keepalive_clause
        });
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    }

    pub fn new_comminst(&mut self, id: MuID, result_ids: Vec<MuID>, opcode: CMuCommInst, flags: &[CMuFlag], tys: Vec<MuID>, sigs: Vec<MuID>, args: Vec<MuID>, exc_clause: Option<MuID>, keepalive_clause: Option<MuID>) {
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        self.add_inst(id, NodeInst::NodeCommInst {
            id: id, result_ids: result_ids,
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            opcode: opcode, flags: vec![], tys: tys, sigs: sigs, args: args,
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            exc_clause: exc_clause, keepalive_clause: keepalive_clause
        });
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    }
}

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type IdPMap<T> = HashMap<MuID, P<T>>;
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struct BundleLoader<'lb, 'lvm> {
    b: &'lb MuIRBuilder,
    vm: &'lvm VM,
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    id_name_map: HashMap<MuID, MuName>,
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    visited: HashSet<MuID>,
    built_types: IdPMap<MuType>,
    built_sigs: IdPMap<MuFuncSig>,
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    built_constants: IdPMap<Value>,
    built_globals: IdPMap<Value>,
    built_funcs: IdBMap<MuFunction>,
    built_funcvers: IdBMap<MuFunctionVersion>,
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    struct_id_tags: Vec<(MuID, MuName)>,
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    built_refi64: Option<P<MuType>>,
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    built_i1: Option<P<MuType>>,
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    built_i64: Option<P<MuType>>,
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    built_funcref_of: IdPMap<MuType>,
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    built_ref_of: IdPMap<MuType>,
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    built_iref_of: IdPMap<MuType>,
    built_constint_of: HashMap<u64, P<Value>>,
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}
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fn load_bundle(b: &mut MuIRBuilder) {
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    let vm = b.get_vm();
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    let new_map = b.id_name_map.drain().collect::<HashMap<_,_>>();

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    let mut bl = BundleLoader {
        b: b,
        vm: vm,
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        id_name_map: new_map,
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        visited: Default::default(),
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        built_types: Default::default(),
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        built_sigs: Default::default(),
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        built_constants: Default::default(),
        built_globals: Default::default(),
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        built_funcs: Default::default(),
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        built_funcvers: Default::default(),
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        struct_id_tags: Default::default(),
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        built_refi64: Default::default(),
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        built_i1: Default::default(),
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        built_i64: Default::default(),
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        built_funcref_of: Default::default(),
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        built_ref_of: Default::default(),
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        built_iref_of: Default::default(),
        built_constint_of: Default::default(),
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    };

    bl.load_bundle();
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}

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#[derive(Default)]
struct FuncCtxBuilder {
    ctx: FunctionContext,
    tree_nodes: IdPMap<TreeNode>,
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}

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const DEFAULT_TRUE_PROB: f32 = 0.6f32;

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impl<'lb, 'lvm> BundleLoader<'lb, 'lvm> {
    fn load_bundle(&mut self) {
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        self.ensure_names();
        self.build_toplevels();
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        self.add_everything_to_vm();
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    }

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    fn ensure_refi64(&mut self) -> P<MuType> {
        if let Some(ref refi64) = self.built_refi64 {
            return refi64.clone();
        }

        let id_i64 = self.vm.next_id();
        let id_ref = self.vm.next_id();

        let impl_i64 = P(MuType {
            hdr: MuEntityHeader::unnamed(id_i64),
            v: MuType_::Int(64),
        });

        let impl_ref = P(MuType {
            hdr: MuEntityHeader::unnamed(id_ref),
            v: MuType_::Ref(impl_i64.clone()),
        });

        trace!("Ensure i64 is defined: {} {:?}", id_i64, impl_i64);
        trace!("Ensure ref is defined: {} {:?}", id_ref, impl_ref);

        self.built_types.insert(id_i64, impl_i64);
        self.built_types.insert(id_ref, impl_ref.clone());

        self.built_refi64 = Some(impl_ref.clone());

        impl_ref
    }

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    fn ensure_i1(&mut self) -> P<MuType> {
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        if let Some(ref impl_ty) = self.built_i1 {
            return impl_ty.clone();
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        }

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        let id = self.vm.next_id();
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        let impl_ty = P(MuType {
            hdr: MuEntityHeader::unnamed(id),
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            v: MuType_::Int(1),
        });

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        trace!("Ensure i1 is defined: {} {:?}", id, impl_ty);
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        self.built_types.insert(id, impl_ty.clone());
        self.built_i1 = Some(impl_ty.clone());
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        impl_ty
    }

    fn ensure_i64(&mut self) -> P<MuType> {
        if let Some(ref impl_ty) = self.built_i64 {
            return impl_ty.clone();
        }

        let id = self.vm.next_id();

        let impl_ty = P(MuType {
            hdr: MuEntityHeader::unnamed(id),
            v: MuType_::Int(64),
        });

        trace!("Ensure i64 is defined: {} {:?}", id, impl_ty);

        self.built_types.insert(id, impl_ty.clone());
        self.built_i64 = Some(impl_ty.clone());

        impl_ty
    }

    fn ensure_constint_of(&mut self, value: u64) -> P<TreeNode> {
        if let Some(c) = self.built_constint_of.get(&value) {
            return self.new_global(c.clone());
        }

        let id = self.vm.next_id();

        let impl_ty = self.ensure_i64();

        let impl_val = P(Value {
            hdr: MuEntityHeader::unnamed(id),
            ty: impl_ty,
            v: Value_::Constant(Constant::Int(value)),
        });

        trace!("Ensure const int is defined: {} {:?}", value, impl_val);

        self.built_constants.insert(id, impl_val.clone());
        self.built_constint_of.insert(value, impl_val.clone());

        self.new_global(impl_val)
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    }
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    fn ensure_funcref(&mut self, sig_id: MuID) -> P<MuType> {
        if let Some(funcref) = self.built_funcref_of.get(&sig_id) {
            return funcref.clone();
        }

        let sig = self.built_sigs.get(&sig_id).unwrap().clone();

        let id_funcref = self.vm.next_id();

        let impl_funcref = P(MuType {
            hdr: MuEntityHeader::unnamed(id_funcref),
            v: MuType_::FuncRef(sig),
        });

        trace!("Ensure funcref of {} is defined: {} {:?}", sig_id, id_funcref, impl_funcref);

        self.built_types.insert(id_funcref, impl_funcref.clone());
        self.built_funcref_of.insert(sig_id, impl_funcref.clone());

        impl_funcref
    }
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    fn ensure_type_generic<F>(id: MuID, hint: &str,
                         vm: &VM, cache_map: &mut IdPMap<MuType>, storage_map: &mut IdPMap<MuType>,
                         factory: F) -> P<MuType> where F: Fn(P<MuType>) -> MuType_ {
        if let Some(obj) = cache_map.get(&id) {
            return obj.clone();
        }

        let new_id = vm.next_id();

        let old_obj = storage_map.get(&id).unwrap().clone();

        let impl_type_ = factory(old_obj);

        let new_obj = P(MuType {
            hdr: MuEntityHeader::unnamed(new_id),
            v: impl_type_,
        });

        storage_map.insert(new_id, new_obj.clone());

        trace!("Ensure {} of {} is defined: {:?}", hint, id, new_obj);

        cache_map.insert(new_id, new_obj.clone());

        new_obj
    }

    fn ensure_ref(&mut self, ty_id: MuID) -> P<MuType> {
        BundleLoader::ensure_type_generic(ty_id, "ref", &self.vm, &mut self.built_ref_of, &mut self.built_types, |impl_ty| {
            MuType_::Ref(impl_ty)
        })
    }

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    fn ensure_iref(&mut self, ty_id: MuID) -> P<MuType> {
        BundleLoader::ensure_type_generic(ty_id, "iref", &self.vm, &mut self.built_iref_of, &mut self.built_types, |impl_ty| {
            MuType_::IRef(impl_ty)
        })
    }

    fn ensure_uptr(&mut self, ty_id: MuID) -> P<MuType> {
        BundleLoader::ensure_type_generic(ty_id, "uptr", &self.vm, &mut self.built_iref_of, &mut self.built_types, |impl_ty| {
            MuType_::UPtr(impl_ty)
        })
    }

    fn ensure_iref_or_uptr(&mut self, ty_id: MuID, is_ptr: bool) -> P<MuType> {
        if is_ptr {
            self.ensure_uptr(ty_id)
        } else {
            self.ensure_iref(ty_id)
        }
    }

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    fn name_from_id(id: MuID, hint: &str) -> String {
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        format!("@uvm.unnamed.{}{}", hint, id)
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    }

    fn ensure_name(&mut self, id: MuID, hint: &str) {
        self.id_name_map.entry(id).or_insert_with(|| {
            let name = BundleLoader::name_from_id(id, hint);
            trace!("Making name for ID {} : {}", id, name);
            name
        });
    }

    fn ensure_names(&mut self) {
        // Make sure structs have names because struct names are used to resolve cyclic
        // dependencies.
        for (id, ty) in &self.b.bundle.types {
            match **ty {
                NodeType::TypeStruct { id: _, fieldtys: _ } => { 
                    self.ensure_name(*id, "struct");
                },
                _ => {}
            }
        }
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        for id in self.b.bundle.funcvers.keys() {
            self.ensure_name(*id, "funcver");
        }

        for id in self.b.bundle.bbs.keys() {
            self.ensure_name(*id, "funcver");
        }
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    }

    fn get_name(&self, id: MuID) -> String {
        self.id_name_map.get(&id).unwrap().clone()
    }

    fn maybe_get_name(&self, id: MuID) -> Option<String> {
        self.id_name_map.get(&id).cloned()
    }

    fn make_mu_entity_header(&self, id: MuID) -> MuEntityHeader {
        match self.maybe_get_name(id) {
            None => MuEntityHeader::unnamed(id),
            Some(name) => MuEntityHeader::named(id, name),
        }
    }

    fn build_toplevels(&mut self) {
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        for id in self.b.bundle.types.keys() {
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            if !self.visited.contains(id) {
                self.build_type(*id)
            }
        }

        let struct_id_tags = self.struct_id_tags.drain(..).collect::<Vec<_>>();
        for (id, ref tag) in struct_id_tags {
            self.fill_struct(id, tag)
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        }
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        for id in self.b.bundle.sigs.keys() {
            if !self.visited.contains(id) {
                self.build_sig(*id)
            }
        }
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        for id in self.b.bundle.consts.keys() {
            if !self.visited.contains(id) {
                self.build_const(*id)
            }
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        }
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        for id in self.b.bundle.funcs.keys() {
            if !self.visited.contains(id) {
                self.build_func(*id)
            }
        }
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        for id in self.b.bundle.funcvers.keys() {
            self.build_funcver(*id)
        }
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    }
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    fn build_type(&mut self, id: MuID) {
        self.visited.insert(id);

        let ty = self.b.bundle.types.get(&id).unwrap();
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        trace!("Building type {} {:?}", id, ty);

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        let hdr = self.make_mu_entity_header(id);

        let impl_ty_ = match **ty {
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            NodeType::TypeInt { id: _, len } => {
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                MuType_::Int(len as usize)
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            },
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            NodeType::TypeFloat { id: _ } => {
                MuType_::Float
            },
            NodeType::TypeDouble { id: _ } => {
                MuType_::Double
            },
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            NodeType::TypeUPtr { id: _, ty: toty } => {
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                let impl_toty = self.ensure_type_rec(toty);
                MuType_::UPtr(impl_toty)
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            },
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            NodeType::TypeUFuncPtr { id: _, sig } => {
                let impl_sig = self.ensure_sig_rec(sig);
                MuType_::UFuncPtr(impl_sig)
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            },
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            NodeType::TypeStruct { id: _, fieldtys: _ } => { 
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                let tag = self.get_name(id);
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                self.struct_id_tags.push((id, tag.clone()));
                MuType_::Struct(tag)
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            },
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            NodeType::TypeHybrid { id: _, ref fixedtys, varty } => { 
                let impl_fixedtys = fixedtys.iter().map(|t| self.ensure_type_rec(*t)).collect::<Vec<_>>();
                let impl_varty = self.ensure_type_rec(varty);
                MuType_::Hybrid(impl_fixedtys, impl_varty)
            },
            NodeType::TypeArray { id: _, elemty, len } => { 
                let impl_elemty = self.ensure_type_rec(elemty);
                MuType_::Array(impl_elemty, len)
            },
            NodeType::TypeVector { id: _, elemty, len } => { 
                let impl_elemty = self.ensure_type_rec(elemty);
                MuType_::Vector(impl_elemty, len)
            },
            NodeType::TypeVoid { id: _ } => {
                MuType_::Void
            },
            NodeType::TypeTagRef64 { id: _ } => {
                MuType_::Tagref64
            },
            NodeType::TypeRef { id: _, ty: toty } => {
                let impl_toty = self.ensure_type_rec(toty);
                MuType_::Ref(impl_toty)
            },
            NodeType::TypeIRef { id: _, ty: toty } => {
                let impl_toty = self.ensure_type_rec(toty);
                MuType_::IRef(impl_toty)
            },
            NodeType::TypeWeakRef { id: _, ty: toty } => {
                let impl_toty = self.ensure_type_rec(toty);
                MuType_::WeakRef(impl_toty)
            },
            NodeType::TypeFuncRef { id: _, sig } => {
                let impl_sig = self.ensure_sig_rec(sig);
                MuType_::FuncRef(impl_sig)
            },
            NodeType::TypeThreadRef { id: _ } => {
                MuType_::ThreadRef
            },
            NodeType::TypeStackRef { id: _ } => {
                MuType_::StackRef
            },
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            ref t => panic!("{:?} not implemented", t),
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        };

        let impl_ty = MuType { hdr: hdr, v: impl_ty_ };
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        trace!("Type built: {} {:?}", id, impl_ty);

        self.built_types.insert(id, P(impl_ty));
    }

    fn ensure_type_rec(&mut self, id: MuID) -> P<MuType> {
        if self.b.bundle.types.contains_key(&id) {
            if self.visited.contains(&id) {
                match self.built_types.get(&id) {
                    Some(t) => t.clone(),
                    None => panic!("Cyclic types found. id: {}", id)
                }
            } else {
                self.build_type(id);
                self.built_types.get(&id).unwrap().clone()
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            }
        } else {
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            self.vm.get_type(id)
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        }
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    }
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    fn get_built_type(&self, id: MuID) -> P<MuType> {
        match self.built_types.get(&id) {
            Some(t) => t.clone(),
            None => self.vm.get_type(id)
        }
    }

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    fn fill_struct(&mut self, id: MuID, tag: &MuName) {
        let ty = self.b.bundle.types.get(&id).unwrap();
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        trace!("Filling struct {} {:?}", id, ty);

        match **ty {
            NodeType::TypeStruct { id: _, fieldtys: ref fieldtys } => { 
                let fieldtys_impl = fieldtys.iter().map(|fid| {
                    self.ensure_type_rec(*fid)
                }).collect::<Vec<_>>();

                let struct_ty_ = StructType_::new(fieldtys_impl);

                match STRUCT_TAG_MAP.read().unwrap().get(tag) {
                    Some(old_struct_ty_) => {
                        if struct_ty_ != *old_struct_ty_ {
                            panic!("trying to insert {:?} as {}, while the old struct is defined as {:?}",
                                   struct_ty_, tag, old_struct_ty_)
                        }
                    },
                    None => {}
                }
                STRUCT_TAG_MAP.write().unwrap().insert(tag.clone(), struct_ty_);
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                trace!("Struct {} filled: {:?}", id,
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                       STRUCT_TAG_MAP.read().unwrap().get(tag));
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            },
            ref t => panic!("{} {:?} should be a Struct type", id, ty),
        }
    }
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    fn build_sig(&mut self, id: MuID) {
        self.visited.insert(id);

        let sig = self.b.bundle.sigs.get(&id).unwrap();
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        trace!("Building function signature {} {:?}", id, sig);

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        let hdr = self.make_mu_entity_header(id);

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        let impl_sig = MuFuncSig{
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            hdr: hdr,
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            ret_tys: sig.rettys.iter().map(|i| self.ensure_type_rec(*i)).collect::<Vec<_>>(),
            arg_tys: sig.paramtys.iter().map(|i| self.ensure_type_rec(*i)).collect::<Vec<_>>(),
        };

        trace!("Function signature built: {} {:?}", id, impl_sig);

        self.built_sigs.insert(id, P(impl_sig));
    }

    fn ensure_sig_rec(&mut self, id: MuID) -> P<MuFuncSig> {
        if self.b.bundle.sigs.contains_key(&id) {
            if self.visited.contains(&id) {
                match self.built_sigs.get(&id) {
                    Some(t) => t.clone(),
                    None => panic!("Cyclic signature found. id: {}", id)
                }
            } else {
                self.build_sig(id);
                self.built_sigs.get(&id).unwrap().clone()
            }
        } else {
            self.vm.get_func_sig(id)
        }
    }
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    fn build_const(&mut self, id: MuID) {
        self.visited.insert(id);

        let con = self.b.bundle.consts.get(&id).unwrap();
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        trace!("Building constant {} {:?}", id, con);

        let hdr = self.make_mu_entity_header(id);

        let (impl_con, impl_ty) = match **con {
            NodeConst::ConstInt { id: _, ty: ty, value: value } => {
                let t = self.ensure_type_rec(ty);
                let c = Constant::Int(value);
                (c, t)
            },
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            NodeConst::ConstFloat { id: _, ty: ty, value: value } => {
                let t = self.ensure_type_rec(ty);
                let c = Constant::Float(value);
                (c, t)
            },
            NodeConst::ConstDouble { id: _, ty: ty, value: value } => {
                let t = self.ensure_type_rec(ty);
                let c = Constant::Double(value);
                (c, t)
            },
            NodeConst::ConstNull { id: _, ty: ty } => {
                let t = self.ensure_type_rec(ty);
                let c = Constant::NullRef;
                (c, t)
            },
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            ref c => panic!("{:?} not implemented", c),
        };

        let impl_val = Value {
            hdr: hdr,
            ty: impl_ty,
            v: Value_::Constant(impl_con),
        };

        trace!("Constant built: {} {:?}", id, impl_val);

1065
        self.built_constants.insert(id, P(impl_val));
1066
    }
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    fn build_func(&mut self, id: MuID) {
        self.visited.insert(id);

        let fun = self.b.bundle.funcs.get(&id).unwrap();

        trace!("Building function {} {:?}", id, fun);

        let hdr = self.make_mu_entity_header(id);
        let impl_sig = self.ensure_sig_rec(fun.sig);

        let impl_fun = MuFunction {
1079
            hdr: hdr.clone(),
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            sig: impl_sig,
            cur_ver: None,
            all_vers: Default::default(),
        };

        trace!("Function built: {} {:?}", id, impl_fun);

1087
        self.built_funcs.insert(id, Box::new(impl_fun));
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        let impl_ty = self.ensure_funcref(fun.sig);

        let impl_val = Value {
            hdr: hdr,
            ty: impl_ty,
            v: Value_::Constant(Constant::FuncRef(id)),
        };

        trace!("Function value built: {} {:?}", id, impl_val);

1099
        self.built_constants.insert(id, P(impl_val));
1100
    }
1101

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    fn get_sig_for_func(&mut self, id: MuID) -> P<MuFuncSig> {
        if let Some(impl_func) = self.built_funcs.get(&id) {
            impl_func.sig.clone()
        } else {
            self.vm.get_func_sig_for_func(id)
        }
    }


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    fn build_funcver(&mut self, id: MuID) {
        let fv = self.b.bundle.funcvers.get(&id).unwrap();
1113

1114 1115 1116
        trace!("Building function version {} {:?}", id, fv);

        let hdr = self.make_mu_entity_header(id);
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        let func_id = fv.func;
        let impl_sig = self.get_sig_for_func(func_id);
1119

1120
        let mut fcb: FuncCtxBuilder = Default::default();
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        let blocks = fv.bbs.iter().map(|bbid| {
1123
            let block = self.build_block(&mut fcb, *bbid);
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            (*bbid, block)
        }).collect::<HashMap<MuID, Block>>();

        let entry_id = *fv.bbs.first().unwrap();
        let ctn = FunctionContent {
            entry: entry_id,
            blocks: blocks,
        };

        let impl_fv = MuFunctionVersion {
            hdr: hdr,
1135
            func_id: func_id,
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            sig: impl_sig,
            content: Some(ctn),
1138
            context: fcb.ctx,
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            block_trace: None,
        };

        trace!("Function version built {} {:?}", id, impl_fv);

1144
        self.built_funcvers.insert(id, Box::new(impl_fv));
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    }

    /// Copied from ast::ir::*. That was implemented for the previous API which implies mutability.
    /// When we migrate later, we can assume the AST is almost fully immutable, and can be
    /// constructed in a functional recursive-descendent style.
1150
    fn new_ssa(&self, fcb: &mut FuncCtxBuilder, id: MuID, ty: P<MuType>) -> P<TreeNode> {
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        let hdr = self.make_mu_entity_header(id);
        let val = P(Value{
            hdr: hdr,
            ty: ty,
            v: Value_::SSAVar(id)
        });

1158
        fcb.ctx.values.insert(id, SSAVarEntry::new(val.clone()));
1159

1160
        let tn = P(TreeNode {
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            op: pick_op_code_for_ssa(&val.ty),
            v: TreeNode_::Value(val)
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        });

        fcb.tree_nodes.insert(id, tn.clone());

        tn
    }

    pub fn new_inst(&self, v: Instruction) -> Box<TreeNode> {
        Box::new(TreeNode{
            op: pick_op_code_for_inst(&v),
            v: TreeNode_::Instruction(v),
        })
    }
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    pub fn new_global(&self, v: P<Value>) -> P<TreeNode> {
        P(TreeNode{
            op: pick_op_code_for_value(&v.ty),
            v: TreeNode_::Value(v)
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        })
    }

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    fn get_treenode(&self, fcb: &FuncCtxBuilder, id: MuID) -> P<TreeNode> {
        if let Some(tn) = fcb.tree_nodes.get(&id) {
            tn.clone()
1187
        } else if let Some(v) = self.built_constants.get(&id) {
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            self.new_global(v.clone())
        } else {
            panic!("Operand {} is neither a local var or a global var", id)
        }
    }

    fn build_block(&mut self, fcb: &mut FuncCtxBuilder, id: MuID) -> Block {
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        let bb = self.b.bundle.bbs.get(&id).unwrap();

        trace!("Building basic block {} {:?}", id, bb);

1199 1200
        let nor_ids = &bb.nor_param_ids;
        let nor_tys = &bb.nor_param_types;
1201 1202 1203

        let args = nor_ids.iter().zip(nor_tys).map(|(arg_id, arg_ty_id)| {
            let arg_ty = self.get_built_type(*arg_ty_id);
1204
            self.new_ssa(fcb, *arg_id, arg_ty).clone_value()
1205 1206
        }).collect::<Vec<_>>();

1207
        let exn_arg = bb.exc_param_id.map(|arg_id| {
1208 1209
            let arg_ty = self.ensure_refi64();
            self.new_ssa(fcb, arg_id, arg_ty).clone_value()
1210 1211 1212 1213
        });

        let hdr = self.make_mu_entity_header(id);

1214 1215
        let body = self.build_block_content(fcb, &bb.insts);

1216 1217 1218
        let ctn = BlockContent {
            args: args,
            exn_arg: exn_arg,
1219
            body: body,
1220 1221 1222 1223 1224 1225 1226 1227 1228
            keepalives: None,
        };

        Block {
            hdr: hdr,
            content: Some(ctn),
            control_flow: Default::default(),
        }
    }
1229

1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242
    fn build_block_content(&mut self, fcb: &mut FuncCtxBuilder, insts: &Vec<MuID>) -> Vec<Box<TreeNode>> {
        insts.iter().map(|iid| self.build_inst(fcb, *iid)).collect::<Vec<_>>()
    }

    fn build_inst(&mut self, fcb: &mut FuncCtxBuilder, id: MuID) -> Box<TreeNode> {
        let inst = self.b.bundle.insts.get(&id).unwrap();

        trace!("Building instruction {} {:?}", id, inst);

        let hdr = self.make_mu_entity_header(id);

        let impl_inst = match **inst {
            NodeInst::NodeBinOp {
1243 1244
                id: _, result_id, status_result_ids: _,
                optr, flags: _, ty, opnd1, opnd2,
1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270
                exc_clause: _
            } => {
                let impl_optr = match optr {
                    CMU_BINOP_ADD  => BinOp::Add,
                    CMU_BINOP_SUB  => BinOp::Sub,
                    CMU_BINOP_MUL  => BinOp::Mul,
                    CMU_BINOP_SDIV => BinOp::Sdiv,
                    CMU_BINOP_SREM => BinOp::Srem,
                    CMU_BINOP_UDIV => BinOp::Udiv,
                    CMU_BINOP_UREM => BinOp::Urem,
                    CMU_BINOP_SHL  => BinOp::Shl,
                    CMU_BINOP_LSHR => BinOp::Lshr,
                    CMU_BINOP_ASHR => BinOp::Ashr,
                    CMU_BINOP_AND  => BinOp::And,
                    CMU_BINOP_OR   => BinOp::Or,
                    CMU_BINOP_XOR  => BinOp::Xor,
                    CMU_BINOP_FADD => BinOp::FAdd,
                    CMU_BINOP_FSUB => BinOp::FSub,
                    CMU_BINOP_FMUL => BinOp::FMul,
                    CMU_BINOP_FDIV => BinOp::FDiv,
                    CMU_BINOP_FREM => BinOp::FRem,
                    _ => panic!("Illegal binary operator {}", optr)
                };
                let impl_ty = self.get_built_type(ty);
                let impl_opnd1 = self.get_treenode(fcb, opnd1);
                let impl_opnd2 = self.get_treenode(fcb, opnd2);
1271
                let impl_rv = self.new_ssa(fcb, result_id, impl_ty).clone_value();
1272

1273 1274
                Instruction {
                    hdr: hdr,
1275
                    value: Some(vec![impl_rv]),
1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316
                    ops: RwLock::new(vec![impl_opnd1, impl_opnd2]),
                    v: Instruction_::BinOp(impl_optr, 0, 1),
                }
            },
            NodeInst::NodeCmp {
                id: _, result_id, optr, ty, opnd1, opnd2
            } => {
                let impl_optr = match optr {
                    CMU_CMP_EQ  => CmpOp::EQ,
                    CMU_CMP_NE  => CmpOp::NE,
                    CMU_CMP_SGE    => CmpOp::SGE,
                    CMU_CMP_SGT    => CmpOp::SGT,
                    CMU_CMP_SLE    => CmpOp::SLE,
                    CMU_CMP_SLT    => CmpOp::SLT,
                    CMU_CMP_UGE    => CmpOp::UGE,
                    CMU_CMP_UGT    => CmpOp::UGT,
                    CMU_CMP_ULE    => CmpOp::ULE,
                    CMU_CMP_ULT    => CmpOp::ULT,
                    CMU_CMP_FFALSE => CmpOp::FFALSE,
                    CMU_CMP_FTRUE  => CmpOp::FTRUE,
                    CMU_CMP_FUNO   => CmpOp::FUNO,
                    CMU_CMP_FUEQ   => CmpOp::FUEQ,
                    CMU_CMP_FUNE   => CmpOp::FUNE,
                    CMU_CMP_FUGT   => CmpOp::FUGT,
                    CMU_CMP_FUGE   => CmpOp::FUGE,
                    CMU_CMP_FULT   => CmpOp::FULT,
                    CMU_CMP_FULE   => CmpOp::FULE,
                    CMU_CMP_FORD   => CmpOp::FORD,
                    CMU_CMP_FOEQ   => CmpOp::FOEQ,
                    CMU_CMP_FONE   => CmpOp::FONE,
                    CMU_CMP_FOGT   => CmpOp::FOGT,
                    CMU_CMP_FOGE   => CmpOp::FOGE,
                    CMU_CMP_FOLT   => CmpOp::FOLT,
                    CMU_CMP_FOLE   => CmpOp::FOLE,
                    _ => panic!("Illegal comparing operator {}", optr)
                };
                // NOTE: vectors not implemented. Otherwise the result would be a vector of
                // int<1>
                let impl_i1 = self.ensure_i1();
                let impl_opnd1 = self.get_treenode(fcb, opnd1);
                let impl_opnd2 = self.get_treenode(fcb, opnd2);
1317
                let impl_rv = self.new_ssa(fcb, result_id, impl_i1).clone_value();
1318

1319 1320
                Instruction {
                    hdr: hdr,
1321
                    value: Some(vec![impl_rv]),
1322 1323 1324 1325 1326 1327 1328
                    ops: RwLock::new(vec![impl_opnd1, impl_opnd2]),
                    v: Instruction_::CmpOp(impl_optr, 0, 1),
                }
            },
            NodeInst::NodeConv {
                id: _, result_id, optr, from_ty, to_ty, opnd
            } => {
1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346
                let impl_optr = match optr {
                    CMU_CONV_TRUNC   => ConvOp::TRUNC,
                    CMU_CONV_ZEXT    => ConvOp::ZEXT,
                    CMU_CONV_SEXT    => ConvOp::SEXT,
                    CMU_CONV_FPTRUNC => ConvOp::FPTRUNC,
                    CMU_CONV_FPEXT   => ConvOp::FPEXT,
                    CMU_CONV_FPTOUI  => ConvOp::FPTOUI,
                    CMU_CONV_FPTOSI  => ConvOp::FPTOSI,
                    CMU_CONV_UITOFP  => ConvOp::UITOFP,
                    CMU_CONV_SITOFP  => ConvOp::SITOFP,
                    CMU_CONV_BITCAST => ConvOp::BITCAST,
                    CMU_CONV_REFCAST => ConvOp::REFCAST,
                    CMU_CONV_PTRCAST => ConvOp::PTRCAST,
                    _ => panic!("Illegal conversion operator {}", optr)
                };
                let impl_from_ty = self.get_built_type(from_ty);
                let impl_to_ty = self.get_built_type(to_ty);
                let impl_opnd = self.get_treenode(fcb, opnd);
1347
                let impl_rv = self.new_ssa(fcb, result_id, impl_to_ty.clone()).clone_value();
1348 1349