diff options
Diffstat (limited to 'gcc/go/gofrontend/expressions.cc')
| -rw-r--r-- | gcc/go/gofrontend/expressions.cc | 44 |
1 files changed, 26 insertions, 18 deletions
diff --git a/gcc/go/gofrontend/expressions.cc b/gcc/go/gofrontend/expressions.cc index 9740d324a86..24f6b125c7d 100644 --- a/gcc/go/gofrontend/expressions.cc +++ b/gcc/go/gofrontend/expressions.cc @@ -760,7 +760,8 @@ Var_expression::do_get_backend(Translate_context* context) else go_unreachable(); - Bexpression* ret = context->backend()->var_expression(bvar, loc); + Bexpression* ret = + context->backend()->var_expression(bvar, this->in_lvalue_pos_, loc); if (is_in_heap) ret = context->backend()->indirect_expression(btype, ret, true, loc); return ret; @@ -887,7 +888,10 @@ Temporary_reference_expression::do_get_backend(Translate_context* context) { Gogo* gogo = context->gogo(); Bvariable* bvar = this->statement_->get_backend_variable(context); - Bexpression* ret = gogo->backend()->var_expression(bvar, this->location()); + Varexpr_context ve_ctxt = (this->is_lvalue_ ? VE_lvalue : VE_rvalue); + + Bexpression* ret = gogo->backend()->var_expression(bvar, ve_ctxt, + this->location()); // The backend can't always represent the same set of recursive types // that the Go frontend can. In some cases this means that a @@ -958,11 +962,11 @@ Set_and_use_temporary_expression::do_get_backend(Translate_context* context) Location loc = this->location(); Gogo* gogo = context->gogo(); Bvariable* bvar = this->statement_->get_backend_variable(context); - Bexpression* var_ref = gogo->backend()->var_expression(bvar, loc); + Bexpression* lvar_ref = gogo->backend()->var_expression(bvar, VE_rvalue, loc); Bexpression* bexpr = this->expr_->get_backend(context); - Bstatement* set = gogo->backend()->assignment_statement(var_ref, bexpr, loc); - var_ref = gogo->backend()->var_expression(bvar, loc); + Bstatement* set = gogo->backend()->assignment_statement(lvar_ref, bexpr, loc); + Bexpression* var_ref = gogo->backend()->var_expression(bvar, VE_lvalue, loc); Bexpression* ret = gogo->backend()->compound_expression(set, var_ref, loc); return ret; } @@ -1065,11 +1069,12 @@ Sink_expression::do_get_backend(Translate_context* context) 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); + Bexpression* var_ref = + gogo->backend()->var_expression(this->bvar_, VE_lvalue, loc); var_ref = gogo->backend()->compound_expression(decl, var_ref, loc); return var_ref; } - return gogo->backend()->var_expression(this->bvar_, loc); + return gogo->backend()->var_expression(this->bvar_, VE_lvalue, loc); } // Ast dump for sink expression. @@ -1276,7 +1281,7 @@ Func_descriptor_expression::do_get_backend(Translate_context* context) Named_object* no = this->fn_; Location loc = no->location(); if (this->dvar_ != NULL) - return context->backend()->var_expression(this->dvar_, loc); + return context->backend()->var_expression(this->dvar_, VE_rvalue, loc); Gogo* gogo = context->gogo(); std::string var_name; @@ -1330,7 +1335,7 @@ Func_descriptor_expression::do_get_backend(Translate_context* context) } this->dvar_ = bvar; - return gogo->backend()->var_expression(bvar, loc); + return gogo->backend()->var_expression(bvar, VE_rvalue, loc); } // Print a function descriptor expression. @@ -4207,7 +4212,8 @@ Unary_expression::do_get_backend(Translate_context* context) { Temporary_statement* temp = sut->temporary(); Bvariable* bvar = temp->get_backend_variable(context); - Bexpression* bvar_expr = gogo->backend()->var_expression(bvar, loc); + Bexpression* bvar_expr = + gogo->backend()->var_expression(bvar, VE_lvalue, loc); Bexpression* bval = sut->expression()->get_backend(context); Bstatement* bassign = @@ -4294,7 +4300,7 @@ Unary_expression::do_get_backend(Translate_context* context) gogo->backend()->implicit_variable_set_init(implicit, buf, btype, true, copy_to_heap, false, bexpr); - bexpr = gogo->backend()->var_expression(implicit, loc); + bexpr = gogo->backend()->var_expression(implicit, VE_lvalue, loc); // If we are not copying a slice initializer to the heap, // then it can be changed by the program, so if it can @@ -4304,7 +4310,7 @@ Unary_expression::do_get_backend(Translate_context* context) && this->expr_->type()->has_pointer()) { Bexpression* root = - gogo->backend()->var_expression(implicit, loc); + gogo->backend()->var_expression(implicit, VE_lvalue, loc); root = gogo->backend()->address_expression(root, loc); Type* type = Type::make_pointer_type(this->expr_->type()); gogo->add_gc_root(Expression::make_backend(root, type, loc)); @@ -4324,7 +4330,7 @@ Unary_expression::do_get_backend(Translate_context* context) true, false, btype, loc); gogo->backend()->immutable_struct_set_init(decl, buf, true, false, btype, loc, bexpr); - bexpr = gogo->backend()->var_expression(decl, loc); + bexpr = gogo->backend()->var_expression(decl, VE_lvalue, loc); } go_assert(!this->create_temp_ || this->expr_->is_variable()); @@ -14116,7 +14122,7 @@ Heap_expression::do_get_backend(Translate_context* context) Bvariable* space_temp = gogo->backend()->temporary_variable(fndecl, context->bblock(), btype, space, true, loc, &decl); - space = gogo->backend()->var_expression(space_temp, loc); + space = gogo->backend()->var_expression(space_temp, VE_lvalue, loc); Btype* expr_btype = this->expr_->type()->get_backend(gogo); Bexpression* ref = gogo->backend()->indirect_expression(expr_btype, space, true, loc); @@ -14124,7 +14130,7 @@ Heap_expression::do_get_backend(Translate_context* context) Bexpression* bexpr = this->expr_->get_backend(context); Bstatement* assn = gogo->backend()->assignment_statement(ref, bexpr, loc); decl = gogo->backend()->compound_statement(decl, assn); - space = gogo->backend()->var_expression(space_temp, loc); + space = gogo->backend()->var_expression(space_temp, VE_rvalue, loc); return gogo->backend()->compound_expression(decl, space, loc); } @@ -15063,7 +15069,8 @@ Interface_mtable_expression::do_get_backend(Translate_context* context) Gogo* gogo = context->gogo(); Location loc = Linemap::predeclared_location(); if (this->bvar_ != NULL) - return gogo->backend()->var_expression(this->bvar_, this->location()); + return gogo->backend()->var_expression(this->bvar_, VE_rvalue, + this->location()); const Typed_identifier_list* interface_methods = this->itype_->methods(); go_assert(!interface_methods->empty()); @@ -15099,7 +15106,8 @@ Interface_mtable_expression::do_get_backend(Translate_context* context) this->bvar_ = gogo->backend()->immutable_struct_reference(mangled_name, asm_name, btype, loc); - return gogo->backend()->var_expression(this->bvar_, this->location()); + return gogo->backend()->var_expression(this->bvar_, VE_rvalue, + this->location()); } // The first element is the type descriptor. @@ -15147,7 +15155,7 @@ Interface_mtable_expression::do_get_backend(Translate_context* context) !is_public, btype, loc); gogo->backend()->immutable_struct_set_init(this->bvar_, mangled_name, false, !is_public, btype, loc, ctor); - return gogo->backend()->var_expression(this->bvar_, loc); + return gogo->backend()->var_expression(this->bvar_, VE_lvalue, loc); } void |