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