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tcg-sparc: Use ADDXC in setcond_i64
Similar to the ADDC tricks we use in setcond_i32. Signed-off-by: Richard Henderson <rth@twiddle.net>
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@ -716,6 +716,23 @@ static void tcg_out_setcond_i32(TCGContext *s, TCGCond cond, TCGReg ret,
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static void tcg_out_setcond_i64(TCGContext *s, TCGCond cond, TCGReg ret,
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TCGReg c1, int32_t c2, int c2const)
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{
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if (use_vis3_instructions) {
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switch (cond) {
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case TCG_COND_NE:
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if (c2 != 0) {
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break;
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}
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c2 = c1, c2const = 0, c1 = TCG_REG_G0;
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/* FALLTHRU */
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case TCG_COND_LTU:
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tcg_out_cmp(s, c1, c2, c2const);
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tcg_out_arith(s, ret, TCG_REG_G0, TCG_REG_G0, ARITH_ADDXC);
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return;
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default:
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break;
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}
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}
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/* For 64-bit signed comparisons vs zero, we can avoid the compare
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if the input does not overlap the output. */
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if (c2 == 0 && !is_unsigned_cond(cond) && c1 != ret) {
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