[Bug lto/53428] New: [4.8 Regression] 403.gcc in SPEC CPU 2006 miscompiled by LTO

[hjl.tools at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53428

             Bug #: 53428
           Summary: [4.8 Regression] 403.gcc in SPEC CPU 2006 miscompiled
                    by LTO
    Classification: Unclassified
           Product: gcc
           Version: 4.8.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: lto
        AssignedTo: unassig...@gcc.gnu.org
        ReportedBy: hjl.to...@gmail.com


On Linux/x86-64, revision 187678 miscompiled
403.gcc in SPEC CPU 2006 with

-DSPEC_CPU -DNDEBUG -I.  -O2 -ffast-math -fwhole-program -flto=jobserver
-fuse-linker-plugin     

I got

166.i:10048: Internal compiler error in simplify_gen_subreg, at
simplify-rtx.c:2755

Revision 187620 is OK.