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| author | Jakub Jelinek <jakub@redhat.com> | 2018-01-06 08:46:39 +0100 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2018-01-06 08:46:39 +0100 |
| commit | dba9c1fd276c07cd6a7cd432d71140931fa44c83 (patch) | |
| tree | e71a32c3cebc8a1c385d88f243f84e370841da60 /gcc/cfgexpand.c | |
| parent | 319e41dc77e31f3ece720ec37853ffbcc4a0df25 (diff) | |
| download | gcc-dba9c1fd276c07cd6a7cd432d71140931fa44c83.zip gcc-dba9c1fd276c07cd6a7cd432d71140931fa44c83.tar.gz gcc-dba9c1fd276c07cd6a7cd432d71140931fa44c83.tar.bz2 | |
re PR debug/83694 (New test case gcc.dg/pr83666.c from r256232 ICEs)
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.
From-SVN: r256307
Diffstat (limited to 'gcc/cfgexpand.c')
| -rw-r--r-- | gcc/cfgexpand.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/gcc/cfgexpand.c b/gcc/cfgexpand.c index 72fd8fd..2ee6fba 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)) { |