[LLVMbugs] [Bug 9718] New: -O3 -fplugin-arg-dragonegg-enable-gcc-optzns fails to compile fftpack

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=9718

           Summary: -O3 -fplugin-arg-dragonegg-enable-gcc-optzns fails to
                    compile fftpack
           Product: dragonegg
           Version: trunk
          Platform: Macintosh
        OS/Version: MacOS X
            Status: NEW
          Severity: normal
          Priority: P
         Component: New Bugs
        AssignedTo: baldrick at free.fr
        ReportedBy: howarth at nitro.med.uc.edu
                CC: llvmbugs at cs.uiuc.edu


Created an attachment (id=6462)
 --> (http://llvm.org/bugs/attachment.cgi?id=6462)
reduced testcase of cosqb1 subroutine

The cosqb1 subroutine in fftpack.f90 fails to compile with -O3
-fplugin-arg-dragonegg-enable-gcc-optzns using dragonegg trunk svn at r129460 
under x86_64-apple-darwin10. The reduced testcase of just the  cosqb1
subroutine fails as...

[MacPro:~/Downloads/fftpack] howarth% /sw/lib/gcc4.5/bin/gfortran
-fplugin=/sw/lib/gcc4.5/lib/dragonegg.so -O3
-fplugin-arg-dragonegg-enable-gcc-optzns -c  fftpack_bug.f90
vect_perm_even.71_278 = VEC_EXTRACTEVEN_EXPR <vect_var_.69_275,
vect_var_.70_277>;

Unhandled GIMPLE assignment!
UNREACHABLE executed at
/sw/src/fink.build/dragonegg-gcc45-2.9-1/include/dragonegg/Internals.h:116!
*** WARNING *** there are active plugins, do not report this as a bug unless
you can reproduce it without enabling any plugins.
Event                            | Plugins
PLUGIN_FINISH_UNIT               | dragonegg
PLUGIN_FINISH                    | dragonegg
PLUGIN_START_UNIT                | dragonegg
fftpack_bug.f90: In function ‘cosqb1_’:
fftpack_bug.f90:1:0: internal compiler error: Abort trap
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.

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