Skip to content

R
riscv-gcc-1
Commit 894503cb by Ian Lance Taylor
Options

Correct protection against recursive types. 

From-SVN: r167807
parent 39752c6b
Showing with 8 additions and 11 deletions
gcc/go/gofrontend/types.cc
......@@ -6795,14 +6795,10 @@ Named_type::do_get_tree(Gogo* gogo)
break;
case TYPE_FUNCTION:
// GENERIC can't handle a pointer to a function type whose
// return type is a pointer to the function type itself. It
// does into infinite loops when walking the types.
if (this->seen_
&& this->function_type()->results() != NULL
&& this->function_type()->results()->size() == 1
&& (this->function_type()->results()->front().type()->forwarded()
== this))
// Don't recur infinitely if a function type refers to itself.
// Ideally we would build a circular data structure here, but
// GENERIC can't handle them.
if (this->seen_)
return ptr_type_node;
this->seen_ = true;
t = Type::get_named_type_tree(gogo, this->type_);
......@@ -6813,9 +6809,10 @@ Named_type::do_get_tree(Gogo* gogo)
break;
case TYPE_POINTER:
// GENERIC can't handle a pointer type which points to itself.
// It goes into infinite loops when walking the types.
if (this->seen_ && this->points_to()->forwarded() == this)
// Don't recur infinitely if a pointer type refers to itself.
// Ideally we would build a circular data structure here, but
// GENERIC can't handle them.
if (this->seen_)
return ptr_type_node;
this->seen_ = true;
t = Type::get_named_type_tree(gogo, this->type_);
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment