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Don't crash on erroneous result variable. 

Fixes issue 1320.

From-SVN: r167573
This commit is contained in:
Ian Lance Taylor 2010-12-07 22:26:39 +00:00
parent c658f0ceef
commit 6997f6964e
1 changed files with 8 additions and 4 deletions
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12
gcc/go/gofrontend/gogo-tree.cc
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@ -1550,14 +1550,18 @@ Function::build_tree(Gogo* gogo, Named_object* named_function)
else if ((*p)->is_result_variable())
{
tree var_decl = (*p)->get_tree(gogo, named_function);
if ((*p)->result_var_value()->is_in_heap())
if (var_decl != error_mark_node
&& (*p)->result_var_value()->is_in_heap())
{
gcc_assert(TREE_CODE(var_decl) == INDIRECT_REF);
var_decl = TREE_OPERAND(var_decl, 0);
}
gcc_assert(TREE_CODE(var_decl) == VAR_DECL);
DECL_CHAIN(var_decl) = declare_vars;
declare_vars = var_decl;
if (var_decl != error_mark_node)
{
gcc_assert(TREE_CODE(var_decl) == VAR_DECL);
DECL_CHAIN(var_decl) = declare_vars;
declare_vars = var_decl;
}
}
}
*pp = NULL_TREE;