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| author | Marek Polacek <polacek@redhat.com> | 2016-09-26 09:42:50 +0000 |
|---|---|---|
| committer | Marek Polacek <mpolacek@gcc.gnu.org> | 2016-09-26 09:42:50 +0000 |
| commit | 81fea426da8c4687bb32e6894dc26f00ae211822 (patch) | |
| tree | 8b84b3de175727d09b7dcf1b5703e0d46b64f9e7 /gcc/internal-fn.c | |
| parent | 392fa55c799358e198ca85fbea548e60359133c5 (diff) | |
| download | gcc-81fea426da8c4687bb32e6894dc26f00ae211822.zip gcc-81fea426da8c4687bb32e6894dc26f00ae211822.tar.gz gcc-81fea426da8c4687bb32e6894dc26f00ae211822.tar.bz2 | |
Implement -Wimplicit-fallthrough.
Co-Authored-By: Jakub Jelinek <jakub@redhat.com>
From-SVN: r240485
Diffstat (limited to 'gcc/internal-fn.c')
| -rw-r--r-- | gcc/internal-fn.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/gcc/internal-fn.c b/gcc/internal-fn.c index c269ca6..029a534 100644 --- a/gcc/internal-fn.c +++ b/gcc/internal-fn.c @@ -244,6 +244,15 @@ expand_TSAN_FUNC_EXIT (internal_fn, gcall *) gcc_unreachable (); } +/* This should get expanded in the lower pass. */ + +static void +expand_FALLTHROUGH (internal_fn, gcall *call) +{ + error_at (gimple_location (call), + "invalid use of attribute %<fallthrough%>"); +} + /* Helper function for expand_addsub_overflow. Return 1 if ARG interpreted as signed in its precision is known to be always positive or 2 if ARG is known to be always negative, or 3 if ARG may |