65371066d8
finish_bitfield_representative has an early out if the field after a bitfield has error_mark_node type, but that early out leads to TREE_TYPE of the DECL_BIT_FIELD_REPRESENTATIVE being NULL, which breaks assumptions on code that uses the DECL_BIT_FIELD_REPRESENTATIVE during error-recovery. The following patch instead sets TREE_TYPE of the representative to error_mark_node, something the users can deal with better. At this point the representative can be set as DECL_BIT_FIELD_REPRESENTATIVE for multiple bitfields, so making sure that we clear the DECL_BIT_FIELD_REPRESENTATIVE instead would be harder (but doable, e.g. with the error_mark_node TREE_TYPE set by this patch set some flag in the caller and if the flag is there, walk all the fields once again and clear all DECL_BIT_FIELD_REPRESENTATIVE that have error_mark_node TREE_TYPE). 2021-06-24 Jakub Jelinek <jakub@redhat.com> PR middle-end/101172 * stor-layout.c (finish_bitfield_representative): If nextf has error_mark_node type, set repr type to error_mark_node too. * gcc.dg/pr101172.c: New test. |
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| c++tools | ||
| config | ||
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