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v0.8.1
https://github.com/torvalds/linux
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Tip revision: 2241ab53cbb5cdb08a6b2d4688feb13971058f65 authored by Linus Torvalds on 22 January 2023, 00:27:01 UTC
Linux 6.2-rc5
Tip revision: 2241ab5
loop.S
/* SPDX-License-Identifier: GPL-2.0-only */
/*
 * Copyright 2013, Michael Ellerman, IBM Corp.
 */

#include <ppc-asm.h>

	.text

FUNC_START(thirty_two_instruction_loop)
	cmpdi	r3,0
	beqlr
	addi	r4,r3,1
	addi	r4,r4,1
	addi	r4,r4,1
	addi	r4,r4,1
	addi	r4,r4,1
	addi	r4,r4,1
	addi	r4,r4,1
	addi	r4,r4,1
	addi	r4,r4,1
	addi	r4,r4,1
	addi	r4,r4,1
	addi	r4,r4,1
	addi	r4,r4,1
	addi	r4,r4,1
	addi	r4,r4,1
	addi	r4,r4,1
	addi	r4,r4,1
	addi	r4,r4,1
	addi	r4,r4,1
	addi	r4,r4,1
	addi	r4,r4,1
	addi	r4,r4,1
	addi	r4,r4,1
	addi	r4,r4,1
	addi	r4,r4,1
	addi	r4,r4,1
	addi	r4,r4,1
	addi	r4,r4,1	# 28 addi's
	subi	r3,r3,1
	b	FUNC_NAME(thirty_two_instruction_loop)
FUNC_END(thirty_two_instruction_loop)

FUNC_START(thirty_two_instruction_loop_with_ll_sc)
	cmpdi	r3,0
	beqlr
	addi	r5,r5,1
	addi	r5,r5,1
	addi	r5,r5,1		# 5
	addi	r5,r5,1
	addi	r5,r5,1
	addi	r5,r5,1
	addi	r5,r5,1
1:	ldarx	r6,0,r4		# 10
	addi	r5,r5,1
	addi	r5,r5,1
	addi	r5,r5,1
	addi	r5,r5,1
	addi	r5,r5,1		# 15
	addi	r5,r5,1
	addi	r5,r5,1
	stdcx.	r6,0,r4
	bne-	1b
	addi	r5,r5,1		# 20
	addi	r5,r5,1
	addi	r5,r5,1
	addi	r5,r5,1
	addi	r5,r5,1
	addi	r5,r5,1		# 25
	addi	r5,r5,1
	addi	r5,r5,1
	addi	r5,r5,1
	addi	r5,r5,1
	addi	r5,r5,1		# 30
	subi	r3,r3,1
	b	FUNC_NAME(thirty_two_instruction_loop_with_ll_sc)
FUNC_END(thirty_two_instruction_loop_with_ll_sc)
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