[Bug middle-end/37710] When peeling an ordinary label off a case-table and making it a default label, strip from the end with identical labels.

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=37710

--- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
and yes we get code that looks like:
        xorl    %eax, %eax
        cmpl    $-34, %edi
        jb      .L1
        negl    %edi
        cmpl    $34, %edi
        ja      .L3
        jmp     *.L5(,%rdi,8)
        .section        .rodata
        .align 8
        .align 4
.L5:
        .quad   .L3
        .quad   .L3

Even though we should something like:
        xorl    %eax, %eax
        cmpl    $-34, %edi
        jb      .L1
        negl    %edi
        jmp     *.L5(,%rdi,8)
        .section        .rodata
        .align 8
        .align 4
.L5:
        .quad   .L3