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| /* NG4fls.S: SPARC optimized fls and __fls for T4 and above.
| *
| * Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved.
| */
|
| #include <linux/linkage.h>
|
| #define LZCNT_O0_G2 \
| .word 0x85b002e8
|
| .text
| .register %g2, #scratch
| .register %g3, #scratch
|
| ENTRY(NG4fls)
| LZCNT_O0_G2 !lzcnt %o0, %g2
| mov 64, %g3
| retl
| sub %g3, %g2, %o0
| ENDPROC(NG4fls)
|
| ENTRY(__NG4fls)
| brz,pn %o0, 1f
| LZCNT_O0_G2 !lzcnt %o0, %g2
| mov 63, %g3
| sub %g3, %g2, %o0
| 1:
| retl
| nop
| ENDPROC(__NG4fls)
|
|
