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Diffstat (limited to 'gcc/go/go-gcc.cc')
| -rw-r--r-- | gcc/go/go-gcc.cc | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/gcc/go/go-gcc.cc b/gcc/go/go-gcc.cc index ce6e2e1..3f61860 100644 --- a/gcc/go/go-gcc.cc +++ b/gcc/go/go-gcc.cc @@ -246,6 +246,12 @@ class Gcc_backend : public Backend Bexpression* struct_field_expression(Bexpression*, size_t, Location); + Bexpression* + compound_expression(Bstatement*, Bexpression*, Location); + + Bexpression* + conditional_expression(Bexpression*, Bexpression*, Bexpression*, Location); + // Statements. Bstatement* @@ -1034,6 +1040,41 @@ Gcc_backend::struct_field_expression(Bexpression* bstruct, size_t index, return tree_to_expr(ret); } +// Return an expression that executes BSTAT before BEXPR. + +Bexpression* +Gcc_backend::compound_expression(Bstatement* bstat, Bexpression* bexpr, + Location location) +{ + tree stat = bstat->get_tree(); + tree expr = bexpr->get_tree(); + if (stat == error_mark_node || expr == error_mark_node) + return this->error_expression(); + tree ret = fold_build2_loc(location.gcc_location(), COMPOUND_EXPR, + TREE_TYPE(expr), stat, expr); + return this->make_expression(ret); +} + +// Return an expression that executes THEN_EXPR if CONDITION is true, or +// ELSE_EXPR otherwise. + +Bexpression* +Gcc_backend::conditional_expression(Bexpression* condition, + Bexpression* then_expr, + Bexpression* else_expr, Location location) +{ + tree cond_tree = condition->get_tree(); + tree then_tree = then_expr->get_tree(); + tree else_tree = else_expr == NULL ? NULL_TREE : else_expr->get_tree(); + if (cond_tree == error_mark_node + || then_tree == error_mark_node + || else_tree == error_mark_node) + return this->error_expression(); + tree ret = build3_loc(location.gcc_location(), COND_EXPR, void_type_node, + cond_tree, then_tree, else_tree); + return this->make_expression(ret); +} + // An expression as a statement. Bstatement* |