diff options
Diffstat (limited to 'sysdeps/x86_64/memchr.S')
| -rw-r--r-- | sysdeps/x86_64/memchr.S | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/sysdeps/x86_64/memchr.S b/sysdeps/x86_64/memchr.S index feef5d4f24..b1de9baf8d 100644 --- a/sysdeps/x86_64/memchr.S +++ b/sysdeps/x86_64/memchr.S @@ -1,4 +1,4 @@ -/* Copyright (C) 2011-2018 Free Software Foundation, Inc. +/* Copyright (C) 2011-2019 Free Software Foundation, Inc. Contributed by Intel Corporation. This file is part of the GNU C Library. @@ -14,7 +14,7 @@ You should have received a copy of the GNU Lesser General Public License along with the GNU C Library; if not, see - <http://www.gnu.org/licenses/>. */ + <https://www.gnu.org/licenses/>. */ #include <sysdep.h> @@ -34,12 +34,16 @@ ENTRY(MEMCHR) mov %edi, %ecx #ifdef USE_AS_WMEMCHR - test %rdx, %rdx + test %RDX_LP, %RDX_LP jz L(return_null) - shl $2, %rdx + shl $2, %RDX_LP #else +# ifdef __ILP32__ + /* Clear the upper 32 bits. */ + movl %edx, %edx +# endif punpcklbw %xmm1, %xmm1 - test %rdx, %rdx + test %RDX_LP, %RDX_LP jz L(return_null) punpcklbw %xmm1, %xmm1 #endif |