[Bug target/69148] [5/6 Regression] ICE (floating point exception) on s390x-linux-gnu

krebbel at gcc dot gnu.org gcc-bugzilla@gcc.gnu.org
Tue Jan 5 15:55:00 GMT 2016


https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69148

Andreas Krebbel <krebbel at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2016-01-05
     Ever confirmed|0                           |1

--- Comment #2 from Andreas Krebbel <krebbel at gcc dot gnu.org> ---
I can confirm this for GCC 5 branch compiling with -march=z196. It does not
seem to get triggered with older -march levels. It also does work fine with
-mno-lra.

On S/390 we need a memory slot when copying 32 bit entities between FPRs and
GPRs. So from a first glance it appears to be related to the handling of
secondary memory needed in LRA.


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