[Bug middle-end/91042] [7/8/9 Regression] ICE in convert_move, at expr.c:218

[ktkachov at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91042

--- Comment #5 from ktkachov at gcc dot gnu.org ---
(In reply to Martin Liška from comment #4)
> @Kyril: Is it really failing for GCC 7.x ?
> 
> For me it works:
> 
> $ arm-suse-linux-gnueabi-g++-7 -v
> gcc version 7.4.1 20190424 [gcc-7-branch revision 270538] (SUSE Linux) 
> 
> $ arm-suse-linux-gnueabi-g++-7 ~/Programming/testcases/pr91042.cc -c -O2
> In function 'void store(P, T) [with T = __vector(4) unsigned int; P = int*]',
>     inlined from 'void exec_ops()' at
> /home/marxin/Programming/testcases/pr91042.cc:23:12:
> /home/marxin/Programming/testcases/pr91042.cc:8:19: warning: 'void*
> __builtin_memcpy(void*, const void*, unsigned int)' writing 16 bytes into a
> region of size 4 overflows the destination [-Wstringop-overflow=]
>    __builtin_memcpy(p1, &p2, sizeof(p2));
>    ~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~

Yeah, it ICE's for me (even with 6.5.0), just double-checked:
gcc version 7.4.1 20190627

--with-arch=armv7-a --with-fpu=neon --with-float=hard --with-arch=armv7-a