diff options
| author | jakub <jakub@138bc75d-0d04-0410-961f-82ee72b054a4> | 2018-01-06 07:46:39 +0000 |
|---|---|---|
| committer | jakub <jakub@138bc75d-0d04-0410-961f-82ee72b054a4> | 2018-01-06 07:46:39 +0000 |
| commit | 5acac2afdffdf1a4bc98be9cc012930062d66104 (patch) | |
| tree | e71a32c3cebc8a1c385d88f243f84e370841da60 | |
| parent | e28970c2ab9c54df3a4686698f3268af9d84a887 (diff) | |
| download | gcc-5acac2afdffdf1a4bc98be9cc012930062d66104.tar.gz | |
PR middle-end/83694
* cfgexpand.c (expand_debug_expr): Punt if mode1 is VOIDmode
and bitsize might be greater than MAX_BITSIZE_MODE_ANY_INT.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@256307 138bc75d-0d04-0410-961f-82ee72b054a4
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/cfgexpand.c | 8 |
2 files changed, 12 insertions, 2 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index a325a19a993..51f92bcf0b0 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2018-01-06 Jakub Jelinek <jakub@redhat.com> + + PR middle-end/83694 + * cfgexpand.c (expand_debug_expr): Punt if mode1 is VOIDmode + and bitsize might be greater than MAX_BITSIZE_MODE_ANY_INT. + 2018-01-05 Jakub Jelinek <jakub@redhat.com> PR target/83604 diff --git a/gcc/cfgexpand.c b/gcc/cfgexpand.c index 72fd8fd5a76..2ee6fbac2e3 100644 --- a/gcc/cfgexpand.c +++ b/gcc/cfgexpand.c @@ -4534,8 +4534,12 @@ expand_debug_expr (tree exp) if (MEM_P (op0)) { if (mode1 == VOIDmode) - /* Bitfield. */ - mode1 = smallest_int_mode_for_size (bitsize); + { + if (maybe_gt (bitsize, MAX_BITSIZE_MODE_ANY_INT)) + return NULL; + /* Bitfield. */ + mode1 = smallest_int_mode_for_size (bitsize); + } poly_int64 bytepos = bits_to_bytes_round_down (bitpos); if (maybe_ne (bytepos, 0)) { |