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while working on an optimized version of strnlen, some string tests fail

From: Nam-goo Lee <devnglee at gmail dot com>
To: libc-help at sourceware dot org
Cc: joseph at codesourcery dot com
Date: Fri, 18 Nov 2016 03:27:52 +0900
Subject: while working on an optimized version of strnlen, some string tests fail
Authentication-results: sourceware.org; auth=none

Hi.

I'm working on an optimized version of strnlen function for arm.
But following tests fail, and I'm stuck here finding the reasons for
the failure.

FAIL: string/stratcliff
FAIL: string/test-stpncpy
FAIL: string/test-strncpy
Summary of test results:
      3 FAIL
     57 PASS

I'm surprised to see that tests for functions other than strnlen fail.
I'd really appreciate to get some hints on what the 'stratcliff' test does,
and the reasons for the failure.
Attached my code.

Thanks.

Attachment: strnlen.S
Description: Text document

Follow-Ups:
- Re: while working on an optimized version of strnlen, some string tests fail
  - From: Adhemerval Zanella

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