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