1 /* SPDX-License-Identifier: GPL-2.0-or-later W <<
2 #include <linux/linkage.h> 1 #include <linux/linkage.h>
3 #include <asm/asmmacro.h> !! 2 #include <asm/export.h>
4 #include <asm/core.h> <<
5 <<
6 #ifdef __XTENSA_EB__ <<
7 #define uh a2 <<
8 #define ul a3 <<
9 #else <<
10 #define uh a3 <<
11 #define ul a2 <<
12 #endif /* __XTENSA_EB__ */ <<
13 3
14 ENTRY(__lshrdi3) 4 ENTRY(__lshrdi3)
>> 5 cmp %o2, 0
>> 6 be 3f
>> 7 mov 0x20, %g2
15 8
16 abi_entry_default !! 9 sub %g2, %o2, %g2
17 ssr a4 !! 10 cmp %g2, 0
18 bgei a4, 32, .Lhigh_only !! 11 bg 1f
19 src ul, uh, ul !! 12 srl %o0, %o2, %o4
20 srl uh, uh <<
21 abi_ret_default <<
22 <<
23 .Lhigh_only: <<
24 srl ul, uh <<
25 movi uh, 0 <<
26 abi_ret_default <<
27 13
>> 14 clr %o4
>> 15 neg %g2
>> 16 b 2f
>> 17 srl %o0, %g2, %o5
>> 18 1:
>> 19 sll %o0, %g2, %g3
>> 20 srl %o1, %o2, %g2
>> 21 or %g2, %g3, %o5
>> 22 2:
>> 23 mov %o4, %o0
>> 24 mov %o5, %o1
>> 25 3:
>> 26 retl
>> 27 nop
28 ENDPROC(__lshrdi3) 28 ENDPROC(__lshrdi3)
29 EXPORT_SYMBOL(__lshrdi3) 29 EXPORT_SYMBOL(__lshrdi3)
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