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Subject: [Bug lto/46531] Many benchmarks in SPEC CPU 2006 are miscompiled by LTO
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46531

--- Comment #2 from H.J. Lu <hjl.tools at gmail dot com> 2010-11-20 03:53:00 UTC ---
As of revision 166944, with

-O3 -mfpmath=sse -msse2 -funroll-loops -ffast-math  -fwhole-program
-flto=jobserver -fuse-linker-plugin  

SPEC CPU 2K is compiled and run correctly for both
ia32 and x86-64.

For SPEC CPU 2006, with reference input, the only failure is:

  Running 416.gamess ref peak lto default

416.gamess: copy 0 non-zero return code (exit code=0, signal=11)


****************************************
Contents of cytosine.2.err
****************************************
STOP IN ABRT

****************************************

****************************************
Contents of triazolium.err
****************************************
STOP IN ABRT

****************************************

for both ia32 and x86-64.

For test input, the only 2 failures are

  Running 416.gamess test peak lto default

****************************************
Contents of exam29.err
****************************************
STOP IN ABRT

****************************************

*** Miscompare of exam29.out; for details see
   
/export/gnu/import/svn/gcc-test-spec/spec/2006/i686/spec/benchspec/CPU2006/4
16.gamess/run/run_peak_test_lto.0000/exam29.out.mis

  Running 465.tonto test peak lto default

*** Miscompare of stdout; for details see
   
/export/gnu/import/svn/gcc-test-spec/spec/2006/i686/spec/benchspec/CPU2006/4
65.tonto/run/run_peak_test_lto.0000/stdout.mis

for both ia32 and x86-64.  They may be the same bug.