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tcg/optimize: Split out fold_setcond

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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 09:35:30 -07:00
parent 079b08040e
commit c63ff55cc5
1 changed files with 14 additions and 9 deletions
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23
tcg/optimize.c
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@ -948,6 +948,17 @@ static bool fold_remainder(OptContext *ctx, TCGOp *op)
return fold_const2(ctx, op);
}
static bool fold_setcond(OptContext *ctx, TCGOp *op)
{
TCGCond cond = op->args[3];
int i = do_constant_folding_cond(op->opc, op->args[1], op->args[2], cond);
if (i >= 0) {
return tcg_opt_gen_movi(ctx, op, op->args[0], i);
}
return false;
}
static bool fold_setcond2(OptContext *ctx, TCGOp *op)
{
TCGCond cond = op->args[5];
@ -1648,15 +1659,6 @@ void tcg_optimize(TCGContext *s)
}
break;
CASE_OP_32_64(setcond):
i = do_constant_folding_cond(opc, op->args[1],
op->args[2], op->args[3]);
if (i >= 0) {
tcg_opt_gen_movi(&ctx, op, op->args[0], i);
continue;
}
break;
CASE_OP_32_64(movcond):
i = do_constant_folding_cond(opc, op->args[1],
op->args[2], op->args[5]);
@ -1817,6 +1819,9 @@ void tcg_optimize(TCGContext *s)
CASE_OP_32_64(shr):
done = fold_shift(&ctx, op);
break;
CASE_OP_32_64(setcond):
done = fold_setcond(&ctx, op);
break;
case INDEX_op_setcond2_i32:
done = fold_setcond2(&ctx, op);
break;