[Bug optimization/11372] New: [3.4 regression] verify_flow_info: Wrong frequency of block at -O3

["falk at debian dot org" <gcc-bugzilla at gcc dot gnu dot org>]

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11372

           Summary: [3.4 regression] verify_flow_info: Wrong frequency of
                    block at -O3
           Product: gcc
           Version: 3.4
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: critical
          Priority: P2
         Component: optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: falk at debian dot org
                CC: gcc-bugs at gcc dot gnu dot org
 GCC build triplet: alphaev68-unknown-linux-gnu
  GCC host triplet: alphaev68-unknown-linux-gnu
GCC target triplet: alphaev68-unknown-linux-gnu

% /tmp/bla/bin/gcc -v -c -O3 -ffast-math eval.i 
Reading specs from /tmp/bla/bin/../lib/gcc-lib/alphaev68-unknown-linux-gnu/3.4/specs
Configured with: ../configure --disable-nls --enable-languages=c
Thread model: posix
gcc version 3.4 20030629 (experimental)
 /tmp/bla/bin/../lib/gcc-lib/alphaev68-unknown-linux-gnu/3.4/cc1 -fpreprocessed
eval.i -quiet -dumpbase eval.i -mcpu=ev67 -auxbase eval -O3 -version -ffast-math
-o /tmp/ccFi5VTS.s
GNU C version 3.4 20030629 (experimental) (alphaev68-unknown-linux-gnu)
        compiled by GNU C version 3.4 20030624 (experimental).
GGC heuristics: --param ggc-min-expand=64 --param ggc-min-heapsize=64115
eval.i: In function `evalPrimary':
eval.i:5959: error: verify_flow_info: Wrong frequency of block 72 -1
eval.i:5959: internal compiler error: verify_flow_info failed
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.

Does not happen at -O2, or without -ffast-math.