Defined SPARC optimised __fls using lzcnt opcode. Signed-off-by: Vijay Kumar <vijay.ac.kumar@xxxxxxxxxx> --- arch/sparc/lib/NG4fls.S | 10 ++++++++++ 1 files changed, 10 insertions(+), 0 deletions(-) diff --git a/arch/sparc/lib/NG4fls.S b/arch/sparc/lib/NG4fls.S index 5ed7da9..34ad371 100644 --- a/arch/sparc/lib/NG4fls.S +++ b/arch/sparc/lib/NG4fls.S @@ -18,3 +18,13 @@ ENTRY(NG4fls) retl sub %g3, %g2, %o0 ENDPROC(NG4fls) + +ENTRY(__NG4fls) + brz,pn %o0, 1f + LXCNT_O0_G2 !lzcnt %o0, %g2 + mov 63, %g3 + sub %g3, %g2, %o0 +1: + retl + nop +ENDPROC(__NG4fls) -- 1.7.1 -- To unsubscribe from this list: send the line "unsubscribe sparclinux" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
