[Bug middle-end/38500] New: [graphite] ICE : in verify_loop_structure, at cfgloop.c:1569

[mitul dot thakkar at amd dot com]

gcc -c -O2 -floop-block test_loop_struct.c

test_loop_struct.c: In function 'Perl_re_intuit_start':
test_loop_struct.c:17: warning: assignment makes pointer from integer without a
cast
test_loop_struct.c:21: warning: incompatible implicit declaration of built-in
function 'printf'
test_loop_struct.c:3: error: basic block 8 should not be marked irreducible
test_loop_struct.c:3: error: edge from 8 to 14 should not be marked irreducible
test_loop_struct.c:3: internal compiler error: in verify_loop_structure, at
cfgloop.c:1569
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.


I tried compiling using -fgraphite-identity also, it is failing with the same
error.

Reduced test case is submitted for the same..

-Mitul Thakkar.


-- 
           Summary: [graphite] ICE : in verify_loop_structure, at
                    cfgloop.c:1569
           Product: gcc
           Version: 4.4.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: middle-end
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: mitul dot thakkar at amd dot com
 GCC build triplet: x86_64-unknown-linux-gnu
  GCC host triplet: x86_64-unknown-linux-gnu
GCC target triplet: x86_64-unknown-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38500