diff --git a/SOURCES/zlib-1.2.11-optimize-fill_window.patch b/SOURCES/zlib-1.2.11-optimize-fill_window.patch
new file mode 100644
index 0000000..c9c362a
--- /dev/null
+++ b/SOURCES/zlib-1.2.11-optimize-fill_window.patch
@@ -0,0 +1,134 @@
+--- a/configure 2022-04-19 17:46:39.589212290 +0300
++++ b/configure 2022-04-19 17:48:26.737818784 +0300
+@@ -115,6 +115,7 @@
+ echo ' [--static] [--64] [--libdir=LIBDIR] [--sharedlibdir=LIBDIR]' | tee -a configure.log
+ echo ' [--includedir=INCLUDEDIR] [--archs="-arch i386 -arch x86_64"]' | tee -a configure.log
+ echo ' [--dfltcc]' | tee -a configure.log
++ echo ' [--enable-sse_slide]' | tee -a configure.log
+ exit 0 ;;
+ -p*=* | --prefix=*) prefix=`echo $1 | sed 's/.*=//'`; shift ;;
+ -e*=* | --eprefix=*) exec_prefix=`echo $1 | sed 's/.*=//'`; shift ;;
+@@ -144,6 +145,12 @@
+ PIC_OBJC="$PIC_OBJC dfltcc.lo"
+ shift
+ ;;
++ --enable-sse_slide)
++ CFLAGS="$CFLAGS -DUSE_SSE_SLIDE"
++ OBJC="$OBJC slide_sse.o"
++ PIC_OBJC="$PIC_OBJC slide_sse.lo"
++ shift
++ ;;
+ *)
+ echo "unknown option: $1" | tee -a configure.log
+ echo "$0 --help for help" | tee -a configure.log
+--- a/Makefile.in 2022-04-11 18:00:47.184530801 +0300
++++ b/Makefile.in 2022-04-11 18:02:47.815927655 +0300
+@@ -151,6 +151,14 @@
+ $(CC) $(SFLAGS) $(ZINC) -DPIC -c -o objs/dfltcc.o $(SRCDIR)contrib/s390/dfltcc.c
+ -@mv objs/dfltcc.o $@
+
++slide_sse.o: $(SRCDIR)slide_sse.c
++ $(CC) $(CFLAGS) $(ZINC) -msse2 -c -o $@ $(SRCDIR)slide_sse.c
++
++slide_sse.lo: $(SRCDIR)slide_sse.c
++ -@mkdir objs 2>/dev/null || test -d objs
++ $(CC) $(SFLAGS) $(ZINC) -DPIC -msse2 -c -o objs/slide_sse.o $(SRCDIR)slide_sse.c
++ -@mv objs/slide_sse.o $@
++
+ example.o: $(SRCDIR)test/example.c $(SRCDIR)zlib.h zconf.h
+ $(CC) $(CFLAGS) $(ZINCOUT) -c -o $@ $(SRCDIR)test/example.c
+
+--- a/deflate.c 2022-04-19 11:43:42.333320519 +0300
++++ b/deflate.c 2022-04-19 15:55:30.636531139 +0300
+@@ -90,6 +90,8 @@
+
+ local int deflateStateCheck OF((z_streamp strm));
+ local void slide_hash OF((deflate_state *s));
++local void slide_hash_c OF((deflate_state *s));
++extern void slide_hash_sse (deflate_state *s);
+ local void fill_window OF((deflate_state *s));
+ local block_state deflate_stored OF((deflate_state *s, int flush));
+ local block_state deflate_fast OF((deflate_state *s, int flush));
+@@ -212,7 +214,7 @@
+ * bit values at the expense of memory usage). We slide even when level == 0 to
+ * keep the hash table consistent if we switch back to level > 0 later.
+ */
+-local void slide_hash(s)
++local void slide_hash_c(s)
+ deflate_state *s;
+ {
+ unsigned n, m;
+@@ -238,6 +240,15 @@
+ #endif
+ }
+
++local void slide_hash(deflate_state *s)
++{
++#ifdef USE_SSE_SLIDE
++ slide_hash_sse(s);
++#else
++ slide_hash_c(s);
++#endif
++}
++
+ /* ========================================================================= */
+ int ZEXPORT deflateInit_(strm, level, version, stream_size)
+ z_streamp strm;
+diff --git a/slide_sse.c b/slide_sse.c
+new file mode 100644
+index 0000000..2ef2669
+--- /dev/null
++++ b/slide_sse.c
+@@ -0,0 +1,49 @@
++/*
++ * SSE optimized hash slide
++ *
++ * Copyright (C) 2017 Intel Corporation
++ * Authors:
++ * Arjan van de Ven <arjan@linux.intel.com>
++ * Jim Kukunas <james.t.kukunas@linux.intel.com>
++ *
++ * For conditions of distribution and use, see copyright notice in zlib.h
++ */
++#include "deflate.h"
++#include <immintrin.h>
++
++void slide_hash_sse(deflate_state *s)
++{
++ unsigned n;
++ Posf *p;
++ uInt wsize = s->w_size;
++ z_const __m128i xmm_wsize = _mm_set1_epi16(s->w_size);
++
++ n = s->hash_size;
++ p = &s->head[n] - 8;
++ do {
++ __m128i value, result;
++
++ value = _mm_loadu_si128((__m128i *)p);
++ result= _mm_subs_epu16(value, xmm_wsize);
++ _mm_storeu_si128((__m128i *)p, result);
++ p -= 8;
++ n -= 8;
++ } while (n > 0);
++
++#ifndef FASTEST
++ n = wsize;
++ p = &s->prev[n] - 8;
++ do {
++ __m128i value, result;
++
++ value = _mm_loadu_si128((__m128i *)p);
++ result= _mm_subs_epu16(value, xmm_wsize);
++ _mm_storeu_si128((__m128i *)p, result);
++
++ p -= 8;
++ n -= 8;
++ } while (n > 0);
++#endif
++}
++
++
+--
+2.27.0
+
diff --git a/SPECS/zlib.spec b/SPECS/zlib.spec
index d04aeea..b4d1869 100644
--- a/SPECS/zlib.spec
+++ b/SPECS/zlib.spec
@@ -3,13 +3,13 @@
Name: zlib
Version: 1.2.11
-Release: 17%{?dist}
+Release: 18%{?dist}
Summary: The compression and decompression library
# /contrib/dotzlib/ have Boost license
License: zlib and Boost
URL: http://www.zlib.net/
-Source: http://www.zlib.net/zlib-%{version}.tar.xz
+Source: https://www.zlib.net/fossils/zlib-%{version}.tar.gz
# https://github.com/madler/zlib/pull/210
Patch0: zlib-1.2.5-minizip-fixuncrypt.patch
# resolves: #805113
@@ -31,7 +31,8 @@ Patch7: zlib-1.2.11-permit-deflateParams-change.patch
Patch8: zlib-1.2.11-IBM-DFLTCC-compression-level-switching-issues.patch
# fixed inflateSyncPoint() bad return value on z15
Patch9: zlib-1.2.11-inflateSyncPoint-return-value-fix.patch
-
+# optimize fill window
+Patch10: zlib-1.2.11-optimize-fill_window.patch
BuildRequires: automake, autoconf, libtool
%description
@@ -93,6 +94,7 @@ developing applications which use minizip.
%patch7 -p1
%patch8 -p1
%patch9 -p1
+%patch10 -p1
iconv -f iso-8859-2 -t utf-8 < ChangeLog > ChangeLog.tmp
mv ChangeLog.tmp ChangeLog
@@ -109,8 +111,12 @@ export LDFLAGS="$LDFLAGS -Wl,-z,relro -Wl,-z,now"
%ifarch s390 s390x
./configure --libdir=%{_libdir} --includedir=%{_includedir} --prefix=%{_prefix} --dfltcc
%else
+%ifarch x86_64
+./configure --libdir=%{_libdir} --includedir=%{_includedir} --prefix=%{_prefix} --enable-sse_slide
+%else
./configure --libdir=%{_libdir} --includedir=%{_includedir} --prefix=%{_prefix}
%endif
+%endif
%make_build
%if %{with minizip}
@@ -172,6 +178,9 @@ find $RPM_BUILD_ROOT -name '*.la' -delete
%changelog
+* Mon Apr 25 2022 Ali Erdinc Koroglu <aekoroglu@centosproject.org> 1.2.11-18
+- Intel sse_slide optimization patch added
+
* Mon Jun 15 2020 Ondrej Dubaj <odubaj@redhat.com> - 1.2.11-17
- Fixed DFLTCC compression level switching issues (#1875492)
- Enabled HW compression for compression levels 1 through 6 (#1847438)