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lastdragon
2026-09-06 12:53:21 -06:00
parent 662efe3c2a
commit ad2088d178
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linux-7.2.3/tools/testing/selftests/powerpc/pmu/loop.S
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/* 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)