1 /* SPDX-License-Identifier: GPL-2.0-or-later W !! 1 /* SPDX-License-Identifier: GPL-2.0 */
>> 2 #include <linux/export.h>
2 #include <linux/linkage.h> 3 #include <linux/linkage.h>
3 #include <asm/asmmacro.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 4
14 ENTRY(__lshrdi3) 5 ENTRY(__lshrdi3)
>> 6 cmp %o2, 0
>> 7 be 3f
>> 8 mov 0x20, %g2
15 9
16 abi_entry_default !! 10 sub %g2, %o2, %g2
17 ssr a4 !! 11 cmp %g2, 0
18 bgei a4, 32, .Lhigh_only !! 12 bg 1f
19 src ul, uh, ul !! 13 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 14
>> 15 clr %o4
>> 16 neg %g2
>> 17 b 2f
>> 18 srl %o0, %g2, %o5
>> 19 1:
>> 20 sll %o0, %g2, %g3
>> 21 srl %o1, %o2, %g2
>> 22 or %g2, %g3, %o5
>> 23 2:
>> 24 mov %o4, %o0
>> 25 mov %o5, %o1
>> 26 3:
>> 27 retl
>> 28 nop
28 ENDPROC(__lshrdi3) 29 ENDPROC(__lshrdi3)
29 EXPORT_SYMBOL(__lshrdi3) 30 EXPORT_SYMBOL(__lshrdi3)
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.