tcg/optimize: Split out fold_bswap
Reviewed-by: Luis Pires <luis.pires@eldorado.org.br> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
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@ -841,6 +841,17 @@ static bool fold_brcond2(OptContext *ctx, TCGOp *op)
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return false;
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}
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static bool fold_bswap(OptContext *ctx, TCGOp *op)
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{
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if (arg_is_const(op->args[1])) {
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uint64_t t = arg_info(op->args[1])->val;
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t = do_constant_folding(op->opc, t, op->args[2]);
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return tcg_opt_gen_movi(ctx, op, op->args[0], t);
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}
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return false;
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}
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static bool fold_call(OptContext *ctx, TCGOp *op)
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{
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TCGContext *s = ctx->tcg;
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@ -1742,17 +1753,6 @@ void tcg_optimize(TCGContext *s)
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}
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break;
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CASE_OP_32_64(bswap16):
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CASE_OP_32_64(bswap32):
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case INDEX_op_bswap64_i64:
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if (arg_is_const(op->args[1])) {
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tmp = do_constant_folding(opc, arg_info(op->args[1])->val,
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op->args[2]);
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tcg_opt_gen_movi(&ctx, op, op->args[0], tmp);
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continue;
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}
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break;
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default:
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break;
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@ -1777,6 +1777,11 @@ void tcg_optimize(TCGContext *s)
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case INDEX_op_brcond2_i32:
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done = fold_brcond2(&ctx, op);
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break;
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CASE_OP_32_64(bswap16):
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CASE_OP_32_64(bswap32):
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case INDEX_op_bswap64_i64:
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done = fold_bswap(&ctx, op);
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break;
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CASE_OP_32_64(clz):
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CASE_OP_32_64(ctz):
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done = fold_count_zeros(&ctx, op);
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