| Vijay Kumar | 70cbec0 | 2017-10-11 12:50:04 -0600 | [diff] [blame^] | 1 | /* NG4fls.S: SPARC optimized fls and __fls for T4 and above. |
| 2 | * | ||||
| 3 | * Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved. | ||||
| 4 | */ | ||||
| 5 | |||||
| 6 | #include <linux/linkage.h> | ||||
| 7 | |||||
| 8 | #define LZCNT_O0_G2 \ | ||||
| 9 | .word 0x85b002e8 | ||||
| 10 | |||||
| 11 | .text | ||||
| 12 | .register %g2, #scratch | ||||
| 13 | .register %g3, #scratch | ||||
| 14 | |||||
| 15 | ENTRY(NG4fls) | ||||
| 16 | LZCNT_O0_G2 !lzcnt %o0, %g2 | ||||
| 17 | mov 64, %g3 | ||||
| 18 | retl | ||||
| 19 | sub %g3, %g2, %o0 | ||||
| 20 | ENDPROC(NG4fls) | ||||