FW: Build failed in Jenkins: BuildThunderX_native_gcc_upstream #1267

[Jim Wilson]

On 03/17/2017 04:12 PM, Jim Wilson wrote:
> I have access to a fast box that isn't otherwise in use at the moment so
> I'm taking a look.  r246225 builds OK.  r246226 does not.  So it is
> Bernd's combine patch.  A little experimenting shows that the compare
> difference is triggered by the use of -gtoggle in stage2, which is not
> used in stage3.  Otherwise stage2 and stage3 generate identical code.
> The bug is apparently due to a problem with handling debug insns in the
> combine patch.

Changing a new prev_nonnote_insn call to a prev_nonnote_nondebug_insn 
call appears to solve the problem.  I will have to do a bootstrap and 
make check from scratch to verify.  I also noticed that there is a 
redundant i1 check in the patch which should be fixed also.

Jim