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tcg/optimize: Split out fold_deposit

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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>
This commit is contained in:
Richard Henderson 2021-08-24 10:47:04 -07:00
parent b6617c8821
commit 1b1907b846
1 changed files with 15 additions and 10 deletions
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25
tcg/optimize.c
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@ -878,6 +878,18 @@ static bool fold_ctpop(OptContext *ctx, TCGOp *op)
return fold_const1(ctx, op);
}
static bool fold_deposit(OptContext *ctx, TCGOp *op)
{
if (arg_is_const(op->args[1]) && arg_is_const(op->args[2])) {
uint64_t t1 = arg_info(op->args[1])->val;
uint64_t t2 = arg_info(op->args[2])->val;
t1 = deposit64(t1, op->args[3], op->args[4], t2);
return tcg_opt_gen_movi(ctx, op, op->args[0], t1);
}
return false;
}
static bool fold_divide(OptContext *ctx, TCGOp *op)
{
return fold_const2(ctx, op);
@ -1741,16 +1753,6 @@ void tcg_optimize(TCGContext *s)
}
break;
CASE_OP_32_64(deposit):
if (arg_is_const(op->args[1]) && arg_is_const(op->args[2])) {
tmp = deposit64(arg_info(op->args[1])->val,
op->args[3], op->args[4],
arg_info(op->args[2])->val);
tcg_opt_gen_movi(&ctx, op, op->args[0], tmp);
continue;
}
break;
default:
break;
@ -1778,6 +1780,9 @@ void tcg_optimize(TCGContext *s)
CASE_OP_32_64(ctpop):
done = fold_ctpop(&ctx, op);
break;
CASE_OP_32_64(deposit):
done = fold_deposit(&ctx, op);
break;
CASE_OP_32_64(div):
CASE_OP_32_64(divu):
done = fold_divide(&ctx, op);