[Bug lto/64412] [regression] ICE in offload compiler: in extract_insn, at recog.c:2327

[hjl.tools at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64412

H.J. Lu <hjl.tools at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |WAITING
   Last reconfirmed|                            |2014-12-26
                 CC|                            |hjl.tools at gmail dot com
     Ever confirmed|0                           |1

--- Comment #1 from H.J. Lu <hjl.tools at gmail dot com> ---
(In reply to iverbin from comment #0)
> After fixing PR lto/64043 (r218767) the offload target compiler began
> crashing while reading intermediate bytecode.
> 
> FAIL: libgomp.c/examples-4/e.53.5.c (internal compiler error)
> FAIL: libgomp.c/for-3.c (internal compiler error)
> FAIL: libgomp.c++/for-11.C (internal compiler error)
> FAIL: libgomp.fortran/examples-4/e.53.3.f90   -O2  (internal compiler error)
> etc.
> 
> 
> To reproduce using Intel Xeon Phi emulation:
> 1. Build offload and host compilers as described in
> https://gcc.gnu.org/wiki/Offloading#How_to_try_offloading_enabled_GCC
> 2. Run make check-target-libgomp RUNTESTFLAGS="c.exp=e.53.5.c"

Can you create a stanalone testcase for the Intel Xeon Phi offload
cross compiler?  It will be easier to debug.