[Bug tree-optimization/39804] New: internal compiler error: in propagate_necessity, at tree-ssa-dce.c:754

[segher at kernel dot crashing dot org]

i386-linux-gcc -O1   -S probe_roms_32.i 

/home/segher/src/kernel/arch/x86/kernel/probe_roms_32.c: In function
'romchecksum':
/home/segher/src/kernel/arch/x86/kernel/probe_roms_32.c:165: internal compiler
error: in propagate_necessity, at tree-ssa-dce.c:754


-- 
           Summary: internal compiler error: in propagate_necessity, at
                    tree-ssa-dce.c:754
           Product: gcc
           Version: 4.5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: segher at kernel dot crashing dot org
  GCC host triplet: x86_64-linux
GCC target triplet: i386-linux


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39804