[Bug target/68228] [4.9 Only] __builtin_ia32_pbroadcastd256 generates wrong insn at >= -O1

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68228

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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   Target Milestone|---                         |4.9.4
            Summary|__builtin_ia32_pbroadcastd2 |[4.9 Only]
                   |56 generates wrong insn at  |__builtin_ia32_pbroadcastd2
                   |>= -O1                      |56 generates wrong insn at
                   |                            |>= -O1