[glibc/ibm/2.26/master] aarch64/strcmp: fix misaligned loop jump target

[glibc/ibm/2.26/master] aarch64/strcmp: fix misaligned loop jump target

[Tulio Magno Quites Machado Filho]

https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=01de24dbca4374665fb2a439be39c05427c0a24a

commit 01de24dbca4374665fb2a439be39c05427c0a24a
Author: Siddhesh Poyarekar <siddhesh@sourceware.org>
Date:   Thu Feb 22 23:48:13 2018 +0530

    aarch64/strcmp: fix misaligned loop jump target
    
    I accidentally set the loop jump back label as misaligned8 instead of
    do_misaligned.  The typo is harmless but it's always nice to not have
    to unnecessarily execute those two instructions.
    
    	* sysdeps/aarch64/strcmp.S (do_misaligned): Jump back to
    	do_misaligned, not misaligned8.
    
    (cherry picked from commit 6ca24c43481e2c93a6eec362b04c3e77a35b28e3)

Diff:
---
 ChangeLog                | 5 +++++
 sysdeps/aarch64/strcmp.S | 2 +-
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/ChangeLog b/ChangeLog
index cd0c1db..29f9e1b 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,10 @@
 2019-09-06  Siddhesh Poyarekar  <siddhesh@sourceware.org>
 
+	* sysdeps/aarch64/strcmp.S (do_misaligned): Jump back to
+	do_misaligned, not misaligned8.
+
+2019-09-06  Siddhesh Poyarekar  <siddhesh@sourceware.org>
+
 	* sysdeps/aarch64/strcmp.S (misaligned8): Compare dword at a
 	time whenever possible.
 
diff --git a/sysdeps/aarch64/strcmp.S b/sysdeps/aarch64/strcmp.S
index c260e1d..7eed82c 100644
--- a/sysdeps/aarch64/strcmp.S
+++ b/sysdeps/aarch64/strcmp.S
@@ -158,7 +158,7 @@ L(do_misaligned):
 	ccmp	data1w, data2w, #0, cs	/* NZCV = 0b0000.  */
 	b.ne	L(done)
 	tst	src1, #7
-	b.ne	L(misaligned8)
+	b.ne	L(do_misaligned)
 
 L(loop_misaligned):
 	/* Test if we are within the last dword of the end of a 4K page.  If