7f2ff23db1
Add an optimized strcmp for CRISv32. This improves strcmp performance with about 25% when comparing a 55 character string with itself. Signed-off-by: Edgar Iglesias <edgar@axis.com> Acked-by: Jesper Nilsson <jesper.nilsson@axis.com>
22 lines
416 B
ArmAsm
22 lines
416 B
ArmAsm
; strcmp.S -- CRISv32 version.
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; Copyright (C) 2008 AXIS Communications AB
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; Written by Edgar E. Iglesias
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;
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; This source code is licensed under the GNU General Public License,
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; Version 2. See the file COPYING for more details.
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.global strcmp
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.type strcmp,@function
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strcmp:
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1:
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move.b [$r10+], $r12
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seq $r13
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sub.b [$r11+], $r12
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or.b $r12, $r13
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beq 1b
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nop
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ret
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movs.b $r12, $r10
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.size strcmp, . - strcmp
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