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compiler: Check for initialization loop in constant initializer. 

From-SVN: r184347
This commit is contained in:
Ian Lance Taylor 2012-02-17 19:27:27 +00:00
parent 061793a4cc
commit 7a6cb708b1
1 changed files with 9 additions and 2 deletions
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11
gcc/go/gofrontend/gogo-tree.cc
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@ -834,8 +834,15 @@ Gogo::write_globals()
else if (init == NULL_TREE)
;
else if (TREE_CONSTANT(init))
this->backend()->global_variable_set_init(var,
tree_to_expr(init));
{
if (expression_requires(no->var_value()->init(), NULL, no))
error_at(no->location(),
"initialization expression for %qs depends "
"upon itself",
no->message_name().c_str());
this->backend()->global_variable_set_init(var,
tree_to_expr(init));
}
else if (is_sink)
var_init_tree = init;
else