https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78201
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |jakub at gcc dot gnu.org
--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Created attachment 40015
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=40015&action=edit
gcc7-pr78201.patch
Untested fix.
The primary bug here is in the FEs/gimplifier, they shouldn't create a
TREE_STATIC artificial var with variable length size. I believe we have PRs
for that though, and I think it is desirable to do the right thing even in this
target hook though. There is no need to test decl != NULL again, this is all
in a block guarded with if (decl && DECL_P (decl)). Furthermore, I think we
shouldn't put the odd-sized stuff into section anchors. And, while
max_anchor_offset is HOST_WIDE_INT, the other uses cast those to unsigned
HOST_WIDE_INT anyway. Plus using DECL_SIZE and comparing against
max_anchor_offset * BITS_PER_UNIT is too ugly, we already have DECL_SIZE_UNIT
in bytes.
