[gas][cortex-m23] why does this beq.w results in hard fault?

[Nick Clifton]

Hi Francesco,

> .arch        armv8-m.base

> The wide contidional branch is supported only for the Armv7-M.
> The Armv8-M architectural reference manual states that:
> /    Armv7-M compatibility requires the Main Extension/
> Cortex-M23 implements the ARMv8-M baseline instruction set (so no Main Extension).
> 
> 
> For these reasons, could there be a problem with the assembler that is not giving out any error?

This does indeed sound like a bug in the assembler.  Please could you
file a bug report here:

https://sourceware.org/bugzilla/enter_bug.cgi?product=binutils

If you can include a small piece of assembler that demonstrates the problem
that would help a lot.

Cheers
   Nick