https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116810
Sam James <sjames at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |sjames at gcc dot gnu.org
--- Comment #1 from Sam James <sjames at gcc dot gnu.org> ---
(In reply to David Binderman from comment #0)
> I just tried a bootstrap build with ASAN & UBSAN switched on.
>
> I got:
>
> working $ grep "runtime error:" mk.out | head
> ../../trunk/gcc/tree-vect-slp.cc:3721:18: runtime error: store to address
> 0x7ffeccf7bec1 with insufficient space for an object of type 'bool'
>
You might get some nicer output with:
export UBSAN_OPTIONS=print_stacktrace=1:halt_on_error=0
(maybe changing 0 to 1 for halting depending on what you want)
> Source code is
>
> matches[1] = false;
>
> git blame says:
>
> 9aaedfc4146c gcc/tree-vect-slp.cc (Richard Biener 2024-07-05 10:35:08
> +0200 3721) matches[1] = false;
>
> Configure script is:
>
> ../trunk/configure --prefix=$HOME/gcc/results.$DATE \
> --disable-multilib \
> --disable-werror \
> --with-pkgversion=$HASH \
> --with-build-config=bootstrap-asan \
> --with-build-config=bootstrap-ubsan \
Are you sure this works? autoconf usually says the last one wins. You may need
--with-build-config="bootstrap-asan bootstrap-ubsan" instead.
