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compiler: Use backend interface for sink expressions.

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From-SVN: r210078
This commit is contained in:
Ian Lance Taylor 2014-05-05 19:05:59 +00:00
parent 36d0631995
commit 535d5152fe
1 changed files with 16 additions and 5 deletions
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21
gcc/go/gofrontend/expressions.cc
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@ -931,7 +931,7 @@ class Sink_expression : public Expression
public:
Sink_expression(Location location)
: Expression(EXPRESSION_SINK, location),
type_(NULL), var_(NULL_TREE)
type_(NULL), bvar_(NULL)
{ }
protected:
@ -959,7 +959,7 @@ class Sink_expression : public Expression
// The type of this sink variable.
Type* type_;
// The temporary variable we generate.
tree var_;
Bvariable* bvar_;
};
// Return the type of a sink expression.
@ -987,13 +987,24 @@ Sink_expression::do_determine_type(const Type_context* context)
tree
Sink_expression::do_get_tree(Translate_context* context)
{
if (this->var_ == NULL_TREE)
Location loc = this->location();
Gogo* gogo = context->gogo();
if (this->bvar_ == NULL)
{
go_assert(this->type_ != NULL && !this->type_->is_sink_type());
Named_object* fn = context->function();
go_assert(fn != NULL);
Bfunction* fn_ctx = fn->func_value()->get_or_make_decl(gogo, fn);
Btype* bt = this->type_->get_backend(context->gogo());
this->var_ = create_tmp_var(type_to_tree(bt), "blank");
Bstatement* decl;
this->bvar_ =
gogo->backend()->temporary_variable(fn_ctx, context->bblock(), bt, NULL,
false, loc, &decl);
Bexpression* var_ref = gogo->backend()->var_expression(this->bvar_, loc);
var_ref = gogo->backend()->compound_expression(decl, var_ref, loc);
return expr_to_tree(var_ref);
}
return this->var_;
return expr_to_tree(gogo->backend()->var_expression(this->bvar_, loc));
}
// Ast dump for sink expression.