diff --git a/gcc/config/rs6000/rs6000.cc b/gcc/config/rs6000/rs6000.cc index 44477657bc298de420c39d7dfa95f6f65f2d1844..718d65951e7f3f7961c3e812858237652ba77c2c 100644 --- a/gcc/config/rs6000/rs6000.cc +++ b/gcc/config/rs6000/rs6000.cc @@ -16042,22 +16042,18 @@ rs6000_emit_vector_compare (enum rtx_code rcode, emit_insn (gen_rtx_SET (mask, gen_rtx_fmt_ee (rcode, dmode, op0, op1))); return mask; } - - bool swap_operands = false; - bool try_again = false; + else if (rcode == LT || rcode == LTU) + { + /* lt{,u}(a,b) = gt{,u}(b,a) */ + enum rtx_code code = swap_condition (rcode); + std::swap (op0, op1); + mask = gen_reg_rtx (dmode); + emit_insn (gen_rtx_SET (mask, gen_rtx_fmt_ee (code, dmode, op0, op1))); + return mask; + } switch (rcode) { - case LT: - rcode = GT; - swap_operands = true; - try_again = true; - break; - case LTU: - rcode = GTU; - swap_operands = true; - try_again = true; - break; case NE: /* Invert condition and try again. e.g., A != B becomes ~(A==B). */ @@ -16131,16 +16127,6 @@ rs6000_emit_vector_compare (enum rtx_code rcode, return NULL_RTX; } - if (try_again) - { - if (swap_operands) - std::swap (op0, op1); - - mask = rs6000_emit_vector_compare (rcode, op0, op1, dmode); - if (mask) - return mask; - } - /* You only get two chances. */ return NULL_RTX; }