From ace9429bb58fd418f0c81d4c2835699bddf6bde6 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Thu, 11 Apr 2024 10:27:49 +0200 Subject: Adding upstream version 6.6.15. Signed-off-by: Daniel Baumann --- arch/riscv/lib/tishift.S | 76 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 76 insertions(+) create mode 100644 arch/riscv/lib/tishift.S (limited to 'arch/riscv/lib/tishift.S') diff --git a/arch/riscv/lib/tishift.S b/arch/riscv/lib/tishift.S new file mode 100644 index 0000000000..ef90075c4b --- /dev/null +++ b/arch/riscv/lib/tishift.S @@ -0,0 +1,76 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright (C) 2018 Free Software Foundation, Inc. + */ + +#include +#include + +SYM_FUNC_START(__lshrti3) + beqz a2, .L1 + li a5,64 + sub a5,a5,a2 + sext.w a4,a5 + blez a5, .L2 + sext.w a2,a2 + srl a0,a0,a2 + sll a4,a1,a4 + srl a2,a1,a2 + or a0,a0,a4 + mv a1,a2 +.L1: + ret +.L2: + negw a0,a4 + li a2,0 + srl a0,a1,a0 + mv a1,a2 + ret +SYM_FUNC_END(__lshrti3) +EXPORT_SYMBOL(__lshrti3) + +SYM_FUNC_START(__ashrti3) + beqz a2, .L3 + li a5,64 + sub a5,a5,a2 + sext.w a4,a5 + blez a5, .L4 + sext.w a2,a2 + srl a0,a0,a2 + sll a4,a1,a4 + sra a2,a1,a2 + or a0,a0,a4 + mv a1,a2 +.L3: + ret +.L4: + negw a0,a4 + srai a2,a1,0x3f + sra a0,a1,a0 + mv a1,a2 + ret +SYM_FUNC_END(__ashrti3) +EXPORT_SYMBOL(__ashrti3) + +SYM_FUNC_START(__ashlti3) + beqz a2, .L5 + li a5,64 + sub a5,a5,a2 + sext.w a4,a5 + blez a5, .L6 + sext.w a2,a2 + sll a1,a1,a2 + srl a4,a0,a4 + sll a2,a0,a2 + or a1,a1,a4 + mv a0,a2 +.L5: + ret +.L6: + negw a1,a4 + li a2,0 + sll a1,a0,a1 + mv a0,a2 + ret +SYM_FUNC_END(__ashlti3) +EXPORT_SYMBOL(__ashlti3) -- cgit v1.2.3