[Bug target/79895] ICE in extract_constrain_insn, at recog.c:2213

[krebbel at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79895

--- Comment #3 from Andreas Krebbel <krebbel at gcc dot gnu.org> ---
Author: krebbel
Date: Tue Apr 25 11:15:44 2017
New Revision: 247190

URL: https://gcc.gnu.org/viewcvs?rev=247190&root=gcc&view=rev
Log:
S/390: PR79895: Fix TImode constant handling

The P constraint letter is supposed to match every constant which is
acceptable during reload.  However, constraints do not appear to be
able to handle const_wide_int yet.  It works with predicates so the
alternative is modelled with a new predicate now.

gcc/ChangeLog:

2017-04-25  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        Backport from mainline
        2017-04-25  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        PR target/79895
        * config/s390/predicates.md (reload_const_wide_int_operand): New
        predicate.
        * config/s390/s390.md ("movti"): Remove d/P alternative.
        ("movti_bigconst"): New pattern definition.

gcc/testsuite/ChangeLog:

2017-04-25  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        Backport from mainline
        2017-04-25  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

        PR target/79895
        * gcc.target/s390/pr79895.c: New test.


Added:
    branches/gcc-7-branch/gcc/testsuite/gcc.target/s390/pr79895.c
Modified:
    branches/gcc-7-branch/gcc/ChangeLog
    branches/gcc-7-branch/gcc/config/s390/predicates.md
    branches/gcc-7-branch/gcc/config/s390/s390.md
    branches/gcc-7-branch/gcc/testsuite/ChangeLog