[Bug target/77676] New: powerpc64 and powerpc64le stage2 bootstrap fail

[amodra at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77676

            Bug ID: 77676
           Summary: powerpc64 and powerpc64le stage2 bootstrap fail
           Product: gcc
           Version: 7.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: amodra at gmail dot com
  Target Milestone: ---

Created attachment 39668
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=39668&action=edit
testcase

The attached testcase taken from rs6000.c output_cbranch shows a wrong
optimisation of sprintf to strcpy when compiled with -O2 -Wall.  Yes, -Wall
seems to be necessary.