[Bug target/62025] New: [4.9/4.10 Regression] Miscompilation of openssl sha512.c

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62025

            Bug ID: 62025
           Summary: [4.9/4.10 Regression] Miscompilation of openssl
                    sha512.c
           Product: gcc
           Version: 4.9.1
            Status: UNCONFIRMED
          Keywords: wrong-code
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: jakub at gcc dot gnu.org
                CC: krebbel at gcc dot gnu.org, rsandifo at gcc dot gnu.org
            Target: s390-linux

Created attachment 33248
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=33248&action=edit
sha.c

The following testcase is miscompiled on s390-linux, starting with r207605
(including latest trunk), with e.g. -O2 -m31 -march=z196 -mtune=z10 options.