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- From 167a062d1a8162b9441a6c0327722e77c8afa01a Mon Sep 17 00:00:00 2001
- From: "yilun.xie" <yilun.xie@starfivetech.com>
- Date: Sun, 21 Nov 2021 21:56:18 -0800
- Subject: [PATCH 24/26] RISC-V: costs: handle BSWAP
- ---
- gcc/config/riscv/riscv.c | 8 ++++++++
- 1 file changed, 8 insertions(+)
- diff --git a/gcc/config/riscv/riscv.c b/gcc/config/riscv/riscv.c
- index 61666b8b2f6..8e22e36eaaf 100644
- --- a/gcc/config/riscv/riscv.c
- +++ b/gcc/config/riscv/riscv.c
- @@ -2110,6 +2110,14 @@ riscv_rtx_costs (rtx x, machine_mode mode, int outer_code, int opno ATTRIBUTE_UN
- *total = riscv_extend_cost (XEXP (x, 0), GET_CODE (x) == ZERO_EXTEND);
- return false;
-
- + case BSWAP:
- + if (TARGET_ZBB)
- + {
- + *total = COSTS_N_INSNS (1);
- + return true;
- + }
- + return false;
- +
- case FLOAT:
- case UNSIGNED_FLOAT:
- case FIX:
- --
- 2.33.1
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