This is the mail archive of the
gcc-bugs@gcc.gnu.org
mailing list for the GCC project.
[Bug sanitizer/69656] -fsanitize=undefined compile time hog
- From: "trippels at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Thu, 04 Feb 2016 15:40:40 +0000
- Subject: [Bug sanitizer/69656] -fsanitize=undefined compile time hog
- Auto-submitted: auto-generated
- References: <bug-69656-4 at http dot gcc dot gnu dot org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69656
--- Comment #14 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
> A good start would be to try individual ubsan sanitizers to spot the "worst" one
> (I guess overflow or maybe null/alignment).
Most individual ubsan sanitizers are in the noise. Here's a list of the
significant ones:
(baseline is 36 seconds without any sanitizer)
-fsanitize=vptr 2:03.22 minutes
-fsanitize=alignment 1:21.92 minutes
-fsanitize=null 1:19.47 minutes
-fsanitize=object-size 41.69 seconds