1 /* SPDX-License-Identifier: GPL-2.0-or-later W !! 1 /* SPDX-License-Identifier: GPL-2.0 */
2 #include <linux/linkage.h> !! 2 /*
3 #include <asm/asmmacro.h> !! 3 * ashldi3.S: GCC emits these for certain drivers playing
4 #include <asm/core.h> !! 4 * with long longs.
>> 5 *
>> 6 * Copyright (C) 1999 David S. Miller (davem@redhat.com)
>> 7 */
5 8
6 #ifdef __XTENSA_EB__ !! 9 #include <linux/export.h>
7 #define uh a2 !! 10 #include <linux/linkage.h>
8 #define ul a3 <<
9 #else <<
10 #define uh a3 <<
11 #define ul a2 <<
12 #endif /* __XTENSA_EB__ */ <<
13 11
>> 12 .text
14 ENTRY(__ashldi3) 13 ENTRY(__ashldi3)
>> 14 cmp %o2, 0
>> 15 be 9f
>> 16 mov 0x20, %g2
15 17
16 abi_entry_default !! 18 sub %g2, %o2, %g2
17 ssl a4 !! 19 cmp %g2, 0
18 bgei a4, 32, .Llow_only !! 20 bg 7f
19 src uh, uh, ul !! 21 sll %o0, %o2, %g3
20 sll ul, ul <<
21 abi_ret_default <<
22 <<
23 .Llow_only: <<
24 sll uh, ul <<
25 movi ul, 0 <<
26 abi_ret_default <<
27 22
>> 23 neg %g2
>> 24 clr %o5
>> 25 b 8f
>> 26 sll %o1, %g2, %o4
>> 27 7:
>> 28 srl %o1, %g2, %g2
>> 29 sll %o1, %o2, %o5
>> 30 or %g3, %g2, %o4
>> 31 8:
>> 32 mov %o4, %o0
>> 33 mov %o5, %o1
>> 34 9:
>> 35 retl
>> 36 nop
28 ENDPROC(__ashldi3) 37 ENDPROC(__ashldi3)
29 EXPORT_SYMBOL(__ashldi3) 38 EXPORT_SYMBOL(__ashldi3)
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