Blame - arch/riscv/lib/tishift.S - hafnium/third_party/linux

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David Brazdil	0f672f6	2019-12-10 10:32:29 +0000	[diff] [blame]	1	/* SPDX-License-Identifier: GPL-2.0-only */
Andrew Scull	b4b6d4a	2019-01-02 15:54:55 +0000	[diff] [blame]	2	/*
				3	* Copyright (C) 2018 Free Software Foundation, Inc.
Andrew Scull	b4b6d4a	2019-01-02 15:54:55 +0000	[diff] [blame]	4	*/
David Brazdil	0f672f6	2019-12-10 10:32:29 +0000	[diff] [blame]	5
				6	#include <linux/linkage.h>
Olivier Deprez	157378f	2022-04-04 15:47:50 +0200	[diff] [blame^]	7	#include <asm-generic/export.h>
David Brazdil	0f672f6	2019-12-10 10:32:29 +0000	[diff] [blame]	8
Olivier Deprez	157378f	2022-04-04 15:47:50 +0200	[diff] [blame^]	9	SYM_FUNC_START(__lshrti3)
David Brazdil	0f672f6	2019-12-10 10:32:29 +0000	[diff] [blame]	10	beqz a2, .L1
				11	li a5,64
				12	sub a5,a5,a2
David Brazdil	0f672f6	2019-12-10 10:32:29 +0000	[diff] [blame]	13	sext.w a4,a5
				14	blez a5, .L2
				15	sext.w a2,a2
David Brazdil	0f672f6	2019-12-10 10:32:29 +0000	[diff] [blame]	16	srl a0,a0,a2
Olivier Deprez	157378f	2022-04-04 15:47:50 +0200	[diff] [blame^]	17	sll a4,a1,a4
				18	srl a2,a1,a2
David Brazdil	0f672f6	2019-12-10 10:32:29 +0000	[diff] [blame]	19	or a0,a0,a4
Olivier Deprez	157378f	2022-04-04 15:47:50 +0200	[diff] [blame^]	20	mv a1,a2
Andrew Scull	b4b6d4a	2019-01-02 15:54:55 +0000	[diff] [blame]	21	.L1:
David Brazdil	0f672f6	2019-12-10 10:32:29 +0000	[diff] [blame]	22	ret
Andrew Scull	b4b6d4a	2019-01-02 15:54:55 +0000	[diff] [blame]	23	.L2:
Olivier Deprez	157378f	2022-04-04 15:47:50 +0200	[diff] [blame^]	24	negw a0,a4
				25	li a2,0
				26	srl a0,a1,a0
				27	mv a1,a2
David Brazdil	0f672f6	2019-12-10 10:32:29 +0000	[diff] [blame]	28	ret
Olivier Deprez	157378f	2022-04-04 15:47:50 +0200	[diff] [blame^]	29	SYM_FUNC_END(__lshrti3)
				30	EXPORT_SYMBOL(__lshrti3)
				31
				32	SYM_FUNC_START(__ashrti3)
				33	beqz a2, .L3
				34	li a5,64
				35	sub a5,a5,a2
				36	sext.w a4,a5
				37	blez a5, .L4
				38	sext.w a2,a2
				39	srl a0,a0,a2
				40	sll a4,a1,a4
				41	sra a2,a1,a2
				42	or a0,a0,a4
				43	mv a1,a2
				44	.L3:
				45	ret
				46	.L4:
				47	negw a0,a4
				48	srai a2,a1,0x3f
				49	sra a0,a1,a0
				50	mv a1,a2
				51	ret
				52	SYM_FUNC_END(__ashrti3)
				53	EXPORT_SYMBOL(__ashrti3)
				54
				55	SYM_FUNC_START(__ashlti3)
				56	beqz a2, .L5
				57	li a5,64
				58	sub a5,a5,a2
				59	sext.w a4,a5
				60	blez a5, .L6
				61	sext.w a2,a2
				62	sll a1,a1,a2
				63	srl a4,a0,a4
				64	sll a2,a0,a2
				65	or a1,a1,a4
				66	mv a0,a2
				67	.L5:
				68	ret
				69	.L6:
				70	negw a1,a4
				71	li a2,0
				72	sll a1,a0,a1
				73	mv a0,a2
				74	ret
				75	SYM_FUNC_END(__ashlti3)
				76	EXPORT_SYMBOL(__ashlti3)