[Bug pending/30823] New: ICE on cpu2006/453.povray with -O1 and above

["grigory_zagorodnev at linux dot intel dot com" <gcc-bugzilla at gcc dot gnu dot org>]

GCC 4.2 fails to compile spec cpu2006/453.povray benchmark sources at -O1 and
above optimization level both on x86_64-redhat-linux and i386-redhat-linux.
Compiler must be configured with '--enable-checking' to see this failure.

messageoutput.cpp: In constructor
'pov_frontend::MessageOutput::MessageOutput(void*)':
messageoutput.cpp:13: internal compiler error: in sra_build_assignment, at
tree-sra.c:1661
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.

It appears that the regression has been introduced with GCC 4.2 revision
122009, which is "SRA and inconsistencies in bit-field types" patch
http://gcc.gnu.org/ml/gcc-patches/2007-02/msg01126.html.


PS: that would take some time to get a minimal reproducer.


-- 
           Summary: ICE on cpu2006/453.povray with -O1 and above
           Product: gcc
           Version: 4.2.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: pending
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: grigory_zagorodnev at linux dot intel dot com
  GCC host triplet: x86_64-redhat-linux


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30823