i386.md (absneg): New code iterator.

i386.md (absneg): New code iterator.

        * config/i386/i386.md (absneg): New code iterator.
        (absnegprefix): New code attribute.
        (<code><mode>2): Macroize expander from abs<mode>2 and neg<mode>2
        patterns using absneg code iterator.
        (<code>tf2): Macroize expander from abstf2 and negtf2 patterns
        using absneg code iterator.
        (*<code><mode>2_1): Macroize insn pattern from *abs<mode>2_1 and
        *neg<mode>2 patterns using absneg code iterator.
        (*<code>extendsfdf2): Macroize insn pattern from *absextendsfdf2 and
        *negextendsfdf2 patterns using absneg code iterator.
        (*<code>extendsfxf2): Macroize insn pattern from *absextendsfxf2 and
        *negextendsfxf2 patterns using absneg code iterator.
        (*<code>extendsfdf2): Macroize insn pattern from *absextendsfdf2 and
        *negextendsfdf2 patterns using absneg code iterator.
        * config/i386/sse.md (<code><mode>2): Macroize expander from
        abs<mode>2 and neg<mode>2 patterns using absneg code iterator.

From-SVN: r134165