[Bug c++/89392] [7/8/9 Regression] ICE in bitmap_bit_p, at bitmap.c:978

[rguenther at suse dot de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89392

--- Comment #6 from rguenther at suse dot de <rguenther at suse dot de> ---
On Tue, 19 Feb 2019, ctice at gcc dot gnu.org wrote:

> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89392
> 
> --- Comment #5 from ctice at gcc dot gnu.org ---
> I have been unable to reproduce this error, using the latest GCC and building
> with VTV enabled.  What architecture are you using?  How are you configuring
> your GCC build?

I can reproduce on latest trunk when configuring with --disable-bootstrap
--enable-valgrind-annotations (it's just a development build).

But it also reproduces with system-installed gcc 7 and 8:

> g++-8 t.cc -O -flto -fvtable-verify=std 
during GIMPLE pass: ealias
t.cc: In function ‘_GLOBAL__sub_I.00099_t’:
t.cc:4:4: internal compiler error: Segmentation fault
 s t;
    ^
0x7ff556798fdf ???
> g++-7 t.cc -O -flto -fvtable-verify=std 
t.cc: In function ‘_GLOBAL__sub_I.00099_t’:
t.cc:4:4: internal compiler error: Segmentation fault
 s t;
    ^
Please submit a full bug report,