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f1f99adf05
Add the compiler-rt builtins like memcpy to the hexagon kernel. Signed-off-by: Sid Manning <sidneym@codeaurora.org> Add SYM_FUNC_START/END, ksyms exports Signed-off-by: Brian Cain <bcain@codeaurora.org> Tested-by: Nick Desaulniers <ndesaulniers@google.com>
68 lines
1.6 KiB
ArmAsm
68 lines
1.6 KiB
ArmAsm
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (c) 2021, The Linux Foundation. All rights reserved.
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*/
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#include <linux/linkage.h>
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SYM_FUNC_START(__hexagon_divsi3)
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{
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p0 = cmp.gt(r0,#-1)
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p1 = cmp.gt(r1,#-1)
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r3:2 = vabsw(r1:0)
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}
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{
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p3 = xor(p0,p1)
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r4 = sub(r2,r3)
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r6 = cl0(r2)
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p0 = cmp.gtu(r3,r2)
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}
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{
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r0 = mux(p3,#-1,#1)
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r7 = cl0(r3)
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p1 = cmp.gtu(r3,r4)
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}
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{
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r0 = mux(p0,#0,r0)
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p0 = or(p0,p1)
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if (p0.new) jumpr:nt r31
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r6 = sub(r7,r6)
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}
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{
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r7 = r6
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r5:4 = combine(#1,r3)
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r6 = add(#1,lsr(r6,#1))
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p0 = cmp.gtu(r6,#4)
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}
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{
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r5:4 = vaslw(r5:4,r7)
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if (!p0) r6 = #3
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}
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{
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loop0(1f,r6)
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r7:6 = vlsrw(r5:4,#1)
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r1:0 = #0
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}
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.falign
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1:
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{
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r5:4 = vlsrw(r5:4,#2)
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if (!p0.new) r0 = add(r0,r5)
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if (!p0.new) r2 = sub(r2,r4)
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p0 = cmp.gtu(r4,r2)
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}
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{
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r7:6 = vlsrw(r7:6,#2)
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if (!p0.new) r0 = add(r0,r7)
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if (!p0.new) r2 = sub(r2,r6)
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p0 = cmp.gtu(r6,r2)
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}:endloop0
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{
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if (!p0) r0 = add(r0,r7)
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}
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{
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if (p3) r0 = sub(r1,r0)
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jumpr r31
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}
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SYM_FUNC_END(__hexagon_divsi3)
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