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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>
56 lines
1.5 KiB
ArmAsm
56 lines
1.5 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_memcpy_likely_aligned_min32bytes_mult8bytes)
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{
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p0 = bitsclr(r1,#7)
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p0 = bitsclr(r0,#7)
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if (p0.new) r5:4 = memd(r1)
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if (p0.new) r7:6 = memd(r1+#8)
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}
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{
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if (!p0) jump:nt .Lmemcpy_call
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if (p0) r9:8 = memd(r1+#16)
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if (p0) r11:10 = memd(r1+#24)
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p0 = cmp.gtu(r2,#64)
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}
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{
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if (p0) jump:nt .Lmemcpy_call
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if (!p0) memd(r0) = r5:4
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if (!p0) memd(r0+#8) = r7:6
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p0 = cmp.gtu(r2,#32)
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}
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{
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p1 = cmp.gtu(r2,#40)
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p2 = cmp.gtu(r2,#48)
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if (p0) r13:12 = memd(r1+#32)
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if (p1.new) r15:14 = memd(r1+#40)
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}
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{
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memd(r0+#16) = r9:8
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memd(r0+#24) = r11:10
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}
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{
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if (p0) memd(r0+#32) = r13:12
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if (p1) memd(r0+#40) = r15:14
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if (!p2) jumpr:t r31
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}
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{
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p0 = cmp.gtu(r2,#56)
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r5:4 = memd(r1+#48)
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if (p0.new) r7:6 = memd(r1+#56)
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}
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{
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memd(r0+#48) = r5:4
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if (p0) memd(r0+#56) = r7:6
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jumpr r31
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}
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.Lmemcpy_call:
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jump memcpy
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SYM_FUNC_END(__hexagon_memcpy_likely_aligned_min32bytes_mult8bytes)
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