* config/i386/i386.md (extend<mode>xf2): Rename from extendsfxf2
and extenddfxf2. Macroize expander using X87MODEF12 mode macro.
(*truncdfsf_mixed, *truncdfsf_i387, *truncdfsf2_i387_1):
Use output_387_reg_move().
(*truncxf<mode>2): Rename from *truncxfsf2 and truncxfdf2. Macroize
expander using X87MODEF12 mode macro.
(*truncxfsf2_mixed): Combine alternatives, ignore "r" alternative when
choosing register preferences. Use output_387_reg_move().
(*truncxfdf2_mixed): Combine alternatives, use "r" alternative
instead of "x". Use output_387_reg_move().
(*truncxf<mode>2_i387_noop): Rename from *truncxfsf2_i387_noop and
*truncxfdf2_i387_noop. Macroize insn using X87MODEF12 mode macro.
(*truncxf<mode>2_i387): Rename from *truncxfsf2_i387 and
*truncxfdf2_i387. Macroize insn using X87MODEF12 mode macro.
Use output_387_reg_move().
(*truncxf?f_mixed splitter): Macroize splitter using X87MODEF12
mode macro.
(*truncxf?f_i387 splitter): Ditto.
From-SVN: r123626
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