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[PULL 32/56] tcg/optimize: Split out fold_bswap
From: |
Richard Henderson |
Subject: |
[PULL 32/56] tcg/optimize: Split out fold_bswap |
Date: |
Wed, 27 Oct 2021 19:41:07 -0700 |
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>
---
tcg/optimize.c | 27 ++++++++++++++++-----------
1 file changed, 16 insertions(+), 11 deletions(-)
diff --git a/tcg/optimize.c b/tcg/optimize.c
index dd65f1afcd..5374c230da 100644
--- a/tcg/optimize.c
+++ b/tcg/optimize.c
@@ -841,6 +841,17 @@ static bool fold_brcond2(OptContext *ctx, TCGOp *op)
return false;
}
+static bool fold_bswap(OptContext *ctx, TCGOp *op)
+{
+ if (arg_is_const(op->args[1])) {
+ uint64_t t = arg_info(op->args[1])->val;
+
+ t = do_constant_folding(op->opc, t, op->args[2]);
+ return tcg_opt_gen_movi(ctx, op, op->args[0], t);
+ }
+ return false;
+}
+
static bool fold_call(OptContext *ctx, TCGOp *op)
{
TCGContext *s = ctx->tcg;
@@ -1742,17 +1753,6 @@ void tcg_optimize(TCGContext *s)
}
break;
- CASE_OP_32_64(bswap16):
- CASE_OP_32_64(bswap32):
- case INDEX_op_bswap64_i64:
- if (arg_is_const(op->args[1])) {
- tmp = do_constant_folding(opc, arg_info(op->args[1])->val,
- op->args[2]);
- tcg_opt_gen_movi(&ctx, op, op->args[0], tmp);
- continue;
- }
- break;
-
default:
break;
@@ -1777,6 +1777,11 @@ void tcg_optimize(TCGContext *s)
case INDEX_op_brcond2_i32:
done = fold_brcond2(&ctx, op);
break;
+ CASE_OP_32_64(bswap16):
+ CASE_OP_32_64(bswap32):
+ case INDEX_op_bswap64_i64:
+ done = fold_bswap(&ctx, op);
+ break;
CASE_OP_32_64(clz):
CASE_OP_32_64(ctz):
done = fold_count_zeros(&ctx, op);
--
2.25.1
- [PULL 38/56] tcg/optimize: Add type to OptContext, (continued)
- [PULL 38/56] tcg/optimize: Add type to OptContext, Richard Henderson, 2021/10/27
- [PULL 35/56] tcg/optimize: Split out fold_xx_to_i, Richard Henderson, 2021/10/27
- [PULL 24/56] tcg/optimize: Split out fold_setcond, Richard Henderson, 2021/10/27
- [PULL 30/56] tcg/optimize: Split out fold_deposit, Richard Henderson, 2021/10/27
- [PULL 34/56] tcg/optimize: Split out fold_mov, Richard Henderson, 2021/10/27
- [PULL 28/56] tcg/optimize: Split out fold_extract2, Richard Henderson, 2021/10/27
- [PULL 39/56] tcg/optimize: Split out fold_to_not, Richard Henderson, 2021/10/27
- [PULL 08/56] tcg/optimize: Remove do_default label, Richard Henderson, 2021/10/27
- [PULL 22/56] tcg/optimize: Split out fold_brcond2, Richard Henderson, 2021/10/27
- [PULL 26/56] tcg/optimize: Split out fold_addsub2_i32, Richard Henderson, 2021/10/27
- [PULL 32/56] tcg/optimize: Split out fold_bswap,
Richard Henderson <=
- [PULL 37/56] tcg/optimize: Split out fold_xi_to_i, Richard Henderson, 2021/10/27
- [PULL 40/56] tcg/optimize: Split out fold_sub_to_neg, Richard Henderson, 2021/10/27
- [PULL 41/56] tcg/optimize: Split out fold_xi_to_x, Richard Henderson, 2021/10/27
- [PULL 46/56] tcg/optimize: Sink commutative operand swapping into fold functions, Richard Henderson, 2021/10/27
- [PULL 42/56] tcg/optimize: Split out fold_ix_to_i, Richard Henderson, 2021/10/27
- [PULL 48/56] tcg/optimize: Use fold_xx_to_i for orc, Richard Henderson, 2021/10/27
- [PULL 44/56] tcg/optimize: Expand fold_mulu2_i32 to all 4-arg multiplies, Richard Henderson, 2021/10/27
- [PULL 45/56] tcg/optimize: Expand fold_addsub2_i32 to 64-bit ops, Richard Henderson, 2021/10/27
- [PULL 47/56] tcg/optimize: Stop forcing z_mask to "garbage" for 32-bit values, Richard Henderson, 2021/10/27
- [PULL 50/56] tcg/optimize: Use fold_xi_to_x for div, Richard Henderson, 2021/10/27