[Bug rtl-optimization/38921] New: [4.3 Regression] NULL access in delay-slot

[hp at gcc dot gnu dot org]

With 4.3 branch at revision 143494 (probably also at least 135713, but that has
local patches I don't care to revert to verify) the attached code puts the
p->next load in the delay-slot of the NULL-check branch, yielding a NULL
access.
I'm guessing a reorg.c bug...

(It doesn't seem to happen at HEAD/4.4 at 143507 which instead has some weird
and suboptimal cross-jumping behavior.)


-- 
           Summary: [4.3 Regression] NULL access in delay-slot
           Product: gcc
           Version: 4.3.3
            Status: UNCONFIRMED
          Keywords: wrong-code
          Severity: normal
          Priority: P3
         Component: rtl-optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: hp at gcc dot gnu dot org
  GCC host triplet: x86_64-unknown-linux-gnu, i686-unknown-linux-gnu
GCC target triplet: cris-*-* and crisv32-*-*


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38921