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[PATCH v2 28/48] tcg/optimize: Split out fold_dup, fold_dup2
From: |
Richard Henderson |
Subject: |
[PATCH v2 28/48] tcg/optimize: Split out fold_dup, fold_dup2 |
Date: |
Thu, 7 Oct 2021 12:54:36 -0700 |
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
tcg/optimize.c | 53 +++++++++++++++++++++++++++++---------------------
1 file changed, 31 insertions(+), 22 deletions(-)
diff --git a/tcg/optimize.c b/tcg/optimize.c
index 7a7c3e25c5..db50cf6499 100644
--- a/tcg/optimize.c
+++ b/tcg/optimize.c
@@ -917,6 +917,31 @@ static bool fold_deposit(OptContext *ctx, TCGOp *op)
return false;
}
+static bool fold_dup(OptContext *ctx, TCGOp *op)
+{
+ if (arg_is_const(op->args[1])) {
+ uint64_t t = arg_info(op->args[1])->val;
+ t = dup_const(TCGOP_VECE(op), t);
+ return tcg_opt_gen_movi(ctx, op, op->args[0], t);
+ }
+ return false;
+}
+
+static bool fold_dup2(OptContext *ctx, TCGOp *op)
+{
+ if (arg_is_const(op->args[1]) && arg_is_const(op->args[2])) {
+ uint64_t t = deposit64(arg_info(op->args[1])->val, 32, 32,
+ arg_info(op->args[2])->val);
+ return tcg_opt_gen_movi(ctx, op, op->args[0], t);
+ }
+
+ if (args_are_copies(op->args[1], op->args[2])) {
+ op->opc = INDEX_op_dup_vec;
+ TCGOP_VECE(op) = MO_32;
+ }
+ return false;
+}
+
static bool fold_eqv(OptContext *ctx, TCGOp *op)
{
return fold_const2(ctx, op);
@@ -1718,28 +1743,6 @@ void tcg_optimize(TCGContext *s)
done = tcg_opt_gen_mov(&ctx, op, op->args[0], op->args[1]);
break;
- case INDEX_op_dup_vec:
- if (arg_is_const(op->args[1])) {
- tmp = arg_info(op->args[1])->val;
- tmp = dup_const(TCGOP_VECE(op), tmp);
- tcg_opt_gen_movi(&ctx, op, op->args[0], tmp);
- continue;
- }
- break;
-
- case INDEX_op_dup2_vec:
- assert(TCG_TARGET_REG_BITS == 32);
- if (arg_is_const(op->args[1]) && arg_is_const(op->args[2])) {
- tcg_opt_gen_movi(&ctx, op, op->args[0],
- deposit64(arg_info(op->args[1])->val, 32, 32,
- arg_info(op->args[2])->val));
- continue;
- } else if (args_are_copies(op->args[1], op->args[2])) {
- op->opc = INDEX_op_dup_vec;
- TCGOP_VECE(op) = MO_32;
- }
- break;
-
default:
break;
@@ -1783,6 +1786,12 @@ void tcg_optimize(TCGContext *s)
CASE_OP_32_64(divu):
done = fold_const2(&ctx, op);
break;
+ case INDEX_op_dup_vec:
+ done = fold_dup(&ctx, op);
+ break;
+ case INDEX_op_dup2_vec:
+ done = fold_dup2(&ctx, op);
+ break;
CASE_OP_32_64(eqv):
done = fold_eqv(&ctx, op);
break;
--
2.25.1
- RE: [PATCH v2 07/48] tcg/optimize: Split out copy_propagate, (continued)
- [PATCH v2 14/48] tcg/optimize: Split out fold_mb, fold_qemu_{ld,st}, Richard Henderson, 2021/10/07
- [PATCH v2 16/48] tcg/optimize: Split out fold_setcond2, Richard Henderson, 2021/10/07
- [PATCH v2 18/48] tcg/optimize: Split out fold_brcond, Richard Henderson, 2021/10/07
- [PATCH v2 24/48] tcg/optimize: Split out fold_extract, fold_sextract, Richard Henderson, 2021/10/07
- [PATCH v2 32/48] tcg/optimize: Split out fold_xi_to_i, Richard Henderson, 2021/10/07
- [PATCH v2 30/48] tcg/optimize: Split out fold_xx_to_i, Richard Henderson, 2021/10/07
- [PATCH v2 28/48] tcg/optimize: Split out fold_dup, fold_dup2,
Richard Henderson <=
- [PATCH v2 35/48] tcg/optimize: Split out fold_sub_to_neg, Richard Henderson, 2021/10/07
- [PATCH v2 06/48] tcg/optimize: Split out init_arguments, Richard Henderson, 2021/10/07
- [PATCH v2 22/48] tcg/optimize: Split out fold_movcond, Richard Henderson, 2021/10/07
- [PATCH v2 25/48] tcg/optimize: Split out fold_deposit, Richard Henderson, 2021/10/07
- [PATCH v2 12/48] tcg/optimize: Split out finish_folding, Richard Henderson, 2021/10/07
- [PATCH v2 33/48] tcg/optimize: Add type to OptContext, Richard Henderson, 2021/10/07
- [PATCH v2 39/48] tcg/optimize: Expand fold_mulu2_i32 to all 4-arg multiplies, Richard Henderson, 2021/10/07