[Bug rtl-optimization/70263] [4.9/5/6 Regression] ICE at -O1 and above in both 32-bit and 64-bit modes on x86_64-linux-gnu (segmentation fault)

[amodra at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70263

Alan Modra <amodra at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |amodra at gmail dot com

--- Comment #5 from Alan Modra <amodra at gmail dot com> ---
Why is reg_equiv[93].init_insns pointing at insn 18 in the first place?  Surely
insn 18, a decrement of reg 93, gives no useful initialization of reg 93?