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MIPS: microMIPS: Optimise 'strnlen' core library function.

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Optimise 'strnlen' to use microMIPS instructions and/or optimisations
for binary size reduction. When the microMIPS ISA is not being used,
the library function compiles to the original binary code.

Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
This commit is contained in:
Steven J. Hill 2013-03-25 13:42:18 -05:00 committed by Ralf Baechle
parent b1bac37345
commit 3e9f37e885
1 changed files with 1 additions and 1 deletions
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2
arch/mips/lib/strnlen_user.S
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@ -35,7 +35,7 @@ FEXPORT(__strnlen_user_nocheck_asm)
PTR_ADDU a1, a0 # stop pointer
1: beq v0, a1, 1f # limit reached?
EX(lb, t0, (v0), .Lfault)
PTR_ADDU v0, 1
PTR_ADDIU v0, 1
bnez t0, 1b
1: PTR_SUBU v0, a0
jr ra