Revision 164367:
http://gcc.gnu.org/ml/gcc-cvs/2010-09/msg00661.html
miscompiled SPEC CPU 2K at -O3.
On Linux/x86-64, I got
Running 186.crafty ref peak lnx32e-gcc default
*** Miscompare of crafty.out, see
/export/gnu/import/svn/gcc-test/spec/2000/x86_
64/spec/benchspec/CINT2000/186.crafty/run/00000004/crafty.out.mis
...
Running 200.sixtrack ref peak lnx32e-gcc default
*** Miscompare of inp.out, see
/export/gnu/import/svn/gcc-test/spec/2000/x86_64/
spec/benchspec/CFP2000/200.sixtrack/run/00000004/inp.out.mis
with -O3 -funroll-loops -ffast-math.
On Linux/ia32, I got
Running 254.gap ref peak lnx32-gcc default
*** Miscompare of ref.out, see
/export/gnu/import/svn/gcc-test/spec/2000/i686/sp
ec/benchspec/CINT2000/254.gap/run/00000004/ref.out.mis
with -O3 -funroll-loops -msse2 -mfpmath=sse -ffast-math.
--
Summary: [4.6 regression] Revision 164367 miscompiled SPEC CPU 2K
Product: gcc
Version: 4.6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: middle-end
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: hjl dot tools at gmail dot com
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45720
