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| author | Ian Lance Taylor <iant@google.com> | 2012-01-21 22:50:36 +0000 |
|---|---|---|
| committer | Ian Lance Taylor <ian@gcc.gnu.org> | 2012-01-21 22:50:36 +0000 |
| commit | 08be22dc96b89851dea8a69afe51f8bc245facc1 (patch) | |
| tree | ba911f21b3399364f691e4f99f6c86710225dae3 /gcc/go/go-gcc.cc | |
| parent | 8f94383a99eddb3c7c6b94ffaa3528c0e22c68c2 (diff) | |
| download | gcc-08be22dc96b89851dea8a69afe51f8bc245facc1.zip gcc-08be22dc96b89851dea8a69afe51f8bc245facc1.tar.gz gcc-08be22dc96b89851dea8a69afe51f8bc245facc1.tar.bz2 | |
compiler: The type descriptor of an undefined forward type is an error.
* go-gcc.cc (Gcc_backend::type_size): Check for error_mark_node.
(Gcc_backend::type_alignment): Likewise.
(Gcc_backend::type_field_alignment): Likewise.
(Gcc_backend::type_field_offset): Likewise.
From-SVN: r183381
Diffstat (limited to 'gcc/go/go-gcc.cc')
| -rw-r--r-- | gcc/go/go-gcc.cc | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/gcc/go/go-gcc.cc b/gcc/go/go-gcc.cc index ca0d626b..e6967a8 100644 --- a/gcc/go/go-gcc.cc +++ b/gcc/go/go-gcc.cc @@ -778,7 +778,10 @@ Gcc_backend::is_circular_pointer_type(Btype* btype) size_t Gcc_backend::type_size(Btype* btype) { - tree t = TYPE_SIZE_UNIT(btype->get_tree()); + tree t = btype->get_tree(); + if (t == error_mark_node) + return 1; + t = TYPE_SIZE_UNIT(t); gcc_assert(TREE_CODE(t) == INTEGER_CST); gcc_assert(TREE_INT_CST_HIGH(t) == 0); unsigned HOST_WIDE_INT val_wide = TREE_INT_CST_LOW(t); @@ -792,7 +795,10 @@ Gcc_backend::type_size(Btype* btype) size_t Gcc_backend::type_alignment(Btype* btype) { - return TYPE_ALIGN_UNIT(btype->get_tree()); + tree t = btype->get_tree(); + if (t == error_mark_node) + return 1; + return TYPE_ALIGN_UNIT(t); } // Return the alignment of a struct field of type BTYPE. @@ -800,7 +806,10 @@ Gcc_backend::type_alignment(Btype* btype) size_t Gcc_backend::type_field_alignment(Btype* btype) { - return go_field_alignment(btype->get_tree()); + tree t = btype->get_tree(); + if (t == error_mark_node) + return 1; + return go_field_alignment(t); } // Return the offset of a field in a struct. @@ -809,6 +818,8 @@ size_t Gcc_backend::type_field_offset(Btype* btype, size_t index) { tree struct_tree = btype->get_tree(); + if (struct_tree == error_mark_node) + return 0; gcc_assert(TREE_CODE(struct_tree) == RECORD_TYPE); tree field = TYPE_FIELDS(struct_tree); for (; index > 0; --index) |