[Bug fortran/70931] [4.9/5/6/7 Regression] ICE with -g in native_encode_initializer, bei dwarf2out.c:17768
rguenth at gcc dot gnu.org
gcc-bugzilla@gcc.gnu.org
Wed May 4 09:07:00 GMT 2016
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70931
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |4.9.4
--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
I think this is a corner-case of native_encode_initializer not handling
zero-sized FIELD_DECLs.
Index: gcc/dwarf2out.c
===================================================================
--- gcc/dwarf2out.c (revision 235859)
+++ gcc/dwarf2out.c (working copy)
@@ -17806,7 +17806,7 @@ native_encode_initializer (tree init, un
fieldsize = tree_to_shwi (DECL_SIZE_UNIT (field));
pos = int_byte_position (field);
gcc_assert (pos + fieldsize <= size);
- if (val
+ if (val && fieldsize != 0
&& !native_encode_initializer (val, array + pos, fieldsize))
return false;
}
fixes it.
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