[Bug middle-end/55456] New: [4.8 Regression] 454.calculix in SPEC CPU 2006 is miscompiled

[hjl.tools at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55456



             Bug #: 55456

           Summary: [4.8 Regression] 454.calculix in SPEC CPU 2006 is

                    miscompiled

    Classification: Unclassified

           Product: gcc

           Version: 4.8.0

            Status: UNCONFIRMED

          Severity: normal

          Priority: P3

         Component: middle-end

        AssignedTo: unassig...@gcc.gnu.org

        ReportedBy: hjl.to...@gmail.com

                CC: areg.melikadam...@gmail.com





On Linux/i686, revision 193723 miscompiled

454.calculix in SPEC CPU 2006 with



-O3 -funroll-loops -msse2 -mfpmath=sse -ffast-math -ffixed-form 



454.calculix is compiled into an infinite loop.