[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[PATCH 09/43] tcg/optimize: Fold dup2_vec
From: |
Richard Henderson |
Subject: |
[PATCH 09/43] tcg/optimize: Fold dup2_vec |
Date: |
Tue, 8 Sep 2020 17:16:13 -0700 |
When the two arguments are identical, this can be reduced to
dup_vec or to mov_vec from a tcg_constant_vec.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
tcg/optimize.c | 15 +++++++++++++++
1 file changed, 15 insertions(+)
diff --git a/tcg/optimize.c b/tcg/optimize.c
index 53aa8e5329..220f4601d5 100644
--- a/tcg/optimize.c
+++ b/tcg/optimize.c
@@ -1109,6 +1109,21 @@ void tcg_optimize(TCGContext *s)
}
goto do_default;
+ case INDEX_op_dup2_vec:
+ assert(TCG_TARGET_REG_BITS == 32);
+ if (arg_is_const(op->args[1]) && arg_is_const(op->args[2])) {
+ tmp = arg_info(op->args[1])->val;
+ if (tmp == arg_info(op->args[2])->val) {
+ tcg_opt_gen_movi(s, op, op->args[0], tmp);
+ break;
+ }
+ } else if (args_are_copies(op->args[1], op->args[2])) {
+ op->opc = INDEX_op_dup_vec;
+ TCGOP_VECE(op) = MO_32;
+ nb_iargs = 1;
+ }
+ goto do_default;
+
CASE_OP_32_64(not):
CASE_OP_32_64(neg):
CASE_OP_32_64(ext8s):
--
2.25.1
- [PATCH 03/43] tcg: Move sorted_args into TCGArgConstraint.sort_index, (continued)
- [PATCH 03/43] tcg: Move sorted_args into TCGArgConstraint.sort_index, Richard Henderson, 2020/09/08
- [PATCH 02/43] tcg: Drop union from TCGArgConstraint, Richard Henderson, 2020/09/08
- [PATCH 01/43] tcg: Adjust simd_desc size encoding, Richard Henderson, 2020/09/08
- [PATCH 05/43] tcg: Move some TCG_CT_* bits to TCGArgConstraint bitfields, Richard Henderson, 2020/09/08
- [PATCH 04/43] tcg: Remove TCG_CT_REG, Richard Henderson, 2020/09/08
- [PATCH 06/43] tcg: Remove TCGOpDef.used, Richard Henderson, 2020/09/08
- [PATCH 07/43] tcg/i386: Fix dupi for avx2 32-bit hosts, Richard Henderson, 2020/09/08
- [PATCH 08/43] tcg: Fix generation of dupi_vec for 32-bit host, Richard Henderson, 2020/09/08
- [PATCH 09/43] tcg/optimize: Fold dup2_vec,
Richard Henderson <=
- [PATCH 10/43] tcg: Remove TCG_TARGET_HAS_cmp_vec, Richard Henderson, 2020/09/08
- [PATCH 11/43] tcg: Use tcg_out_dupi_vec from temp_load, Richard Henderson, 2020/09/08
- [PATCH 12/43] tcg: Increase tcg_out_dupi_vec immediate to int64_t, Richard Henderson, 2020/09/08
- [PATCH 13/43] tcg: Consolidate 3 bits into enum TCGTempKind, Richard Henderson, 2020/09/08
- [PATCH 14/43] tcg: Add temp_readonly, Richard Henderson, 2020/09/08
- [PATCH 15/43] tcg: Expand TCGTemp.val to 64-bits, Richard Henderson, 2020/09/08
- [PATCH 16/43] tcg: Rename struct tcg_temp_info to TempOptInfo, Richard Henderson, 2020/09/08
- [PATCH 18/43] tcg: Introduce TYPE_CONST temporaries, Richard Henderson, 2020/09/08