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GNU C Library master sources branch master updated. glibc-2.18-81-g5430fc6


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       via  5430fc65a118300b35a834a1112caea3441ff12e (commit)
      from  4660856c6f24ed0edc04d62a5a31839cab4e5640 (commit)

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- Log -----------------------------------------------------------------
http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=5430fc65a118300b35a834a1112caea3441ff12e

commit 5430fc65a118300b35a834a1112caea3441ff12e
Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
Date:   Thu Sep 5 09:32:56 2013 -0500

    PowerPC: fix POWER7 memrchr for some large inputs

diff --git a/ChangeLog b/ChangeLog
index 9392693..2403463 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,11 @@
 2013-09-05  Adhemerval Zanella  <azanella@linux.vnet.ibm.com>
 
+	* sysdeps/powerpc/powerpc32/power7/memrchr.S (__memrchr): Fix invalid
+	memory access for final bytes in some large inputs.
+	* sysdeps/powerpc/powerpc64/power7/memrchr.S (__memrchr): Likewise.
+
+2013-09-05  Adhemerval Zanella  <azanella@linux.vnet.ibm.com>
+
 	* string/test-memrchr.c: New file.
 	* string/test-memrchr-ifunc.c: New file.
 	* string/Makefile: Add new memrchr testcase.
diff --git a/sysdeps/powerpc/powerpc32/power7/memrchr.S b/sysdeps/powerpc/powerpc32/power7/memrchr.S
index d1e3fda..defd832 100644
--- a/sysdeps/powerpc/powerpc32/power7/memrchr.S
+++ b/sysdeps/powerpc/powerpc32/power7/memrchr.S
@@ -101,8 +101,8 @@ L(loop):
 	/* We're here because the counter reached 0, and that means we
 	   didn't have any matches for BYTE in the whole range.  Just return
 	   the original range.  */
-	addi	r9,r8,4
-	cmplw	cr6,r9,r7
+	addi	r8,r8,4
+	cmplw	cr6,r8,r7
 	bgt	cr6,L(loop_small)
 	b	L(null)
 
diff --git a/sysdeps/powerpc/powerpc64/power7/memrchr.S b/sysdeps/powerpc/powerpc64/power7/memrchr.S
index d24fbbb..c499952 100644
--- a/sysdeps/powerpc/powerpc64/power7/memrchr.S
+++ b/sysdeps/powerpc/powerpc64/power7/memrchr.S
@@ -102,8 +102,8 @@ L(loop):
 	/* We're here because the counter reached 0, and that means we
 	   didn't have any matches for BYTE in the whole range.  Just return
 	   the original range.  */
-	addi	r9,r8,8
-	cmpld	cr6,r9,r7
+	addi	r8,r8,8
+	cmpld	cr6,r8,r7
 	bgt	cr6,L(loop_small)
 	b	L(null)
 

-----------------------------------------------------------------------

Summary of changes:
 ChangeLog                                  |    6 ++++++
 sysdeps/powerpc/powerpc32/power7/memrchr.S |    4 ++--
 sysdeps/powerpc/powerpc64/power7/memrchr.S |    4 ++--
 3 files changed, 10 insertions(+), 4 deletions(-)


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