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-rw-r--r--gcc/go/go-gcc.cc14
1 files changed, 14 insertions, 0 deletions
diff --git a/gcc/go/go-gcc.cc b/gcc/go/go-gcc.cc
index 08f014f..82ce3ee6 100644
--- a/gcc/go/go-gcc.cc
+++ b/gcc/go/go-gcc.cc
@@ -324,6 +324,9 @@ class Gcc_backend : public Backend
call_expression(Bexpression* fn, const std::vector<Bexpression*>& args,
Bexpression* static_chain, Location);
+ Bexpression*
+ stack_allocation_expression(int64_t size, Location);
+
// Statements.
Bstatement*
@@ -1884,6 +1887,17 @@ Gcc_backend::call_expression(Bexpression* fn_expr,
return this->make_expression(ret);
}
+// Return an expression that allocates SIZE bytes on the stack.
+
+Bexpression*
+Gcc_backend::stack_allocation_expression(int64_t size, Location location)
+{
+ tree alloca = builtin_decl_explicit(BUILT_IN_ALLOCA);
+ tree size_tree = build_int_cst(integer_type_node, size);
+ tree ret = build_call_expr_loc(location.gcc_location(), alloca, 1, size_tree);
+ return this->make_expression(ret);
+}
+
// An expression as a statement.
Bstatement*