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| author | Jakub Jelinek <jakub@redhat.com> | 2020-11-25 10:37:58 +0100 |
|---|---|---|
| committer | Jakub Jelinek <jakub@redhat.com> | 2020-11-25 10:37:58 +0100 |
| commit | a7285c8659689e9ade53fcb996b26d874455a4f3 (patch) | |
| tree | 5db8400816f1cad1b376e8d8f448dfef057be0fa /gcc/tree-ssa-loop-split.c | |
| parent | 1e2c9a2761097a6758b6aaaf612d629aa7e9febf (diff) | |
| download | gcc-a7285c8659689e9ade53fcb996b26d874455a4f3.zip gcc-a7285c8659689e9ade53fcb996b26d874455a4f3.tar.gz gcc-a7285c8659689e9ade53fcb996b26d874455a4f3.tar.bz2 | |
middle-end: Reject flexible array members in __builtin_clear_padding [PR97943]
As mentioned in the PR, we currently ICE on flexible array members in
structs and unions during __builtin_clear_padding processing.
Jason said in the PR he'd prefer an error in these cases over forcefully
handling it as [0] arrays (everything is padding then) or consider the
arrays to have as many whole elements as would fit into the tail padding.
So, this patch implements that.
2020-11-25 Jakub Jelinek <jakub@redhat.com>
PR middle-end/97943
* gimple-fold.c (clear_padding_union, clear_padding_type): Error on and
ignore flexible array member fields. Ignore fields with
error_mark_node type.
* c-c++-common/builtin-clear-padding-2.c: New test.
* c-c++-common/builtin-clear-padding-3.c: New test.
* g++.dg/ext/builtin-clear-padding-1.C: New test.
* gcc.dg/builtin-clear-padding-2.c: New test.
Diffstat (limited to 'gcc/tree-ssa-loop-split.c')
0 files changed, 0 insertions, 0 deletions