[Library] Update zlibng (#1255)

* Update zlibng * Set cmake path more directly in zlibng to hopefully fix an issue with the build on drone * I'm dumb, missing / in path * Mackal helps with a dumb gitignore issue * Adding all the files, not sure what's ignoring them and im tired of looking * Some tweaks to zlibng build to hopefully get it to build properly. works on msvc now
2026-06-27 20:47:15 +00:00 · 2021-02-23 17:00:26 -08:00
parent e6dee96266
commit 2957f5084d
184 changed files with 21431 additions and 11703 deletions
@@ -0,0 +1,74 @@
+/* compare258_sse.c -- SSE4.2 version of compare258
+ *
+ * Copyright (C) 2013 Intel Corporation. All rights reserved.
+ * Authors:
+ *  Wajdi Feghali   <wajdi.k.feghali@intel.com>
+ *  Jim Guilford    <james.guilford@intel.com>
+ *  Vinodh Gopal    <vinodh.gopal@intel.com>
+ *     Erdinc Ozturk   <erdinc.ozturk@intel.com>
+ *  Jim Kukunas     <james.t.kukunas@linux.intel.com>
+ *
+ * Portions are Copyright (C) 2016 12Sided Technology, LLC.
+ * Author:
+ *  Phil Vachon     <pvachon@12sidedtech.com>
+ *
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+#include "../../zbuild.h"
+#include "../../zutil.h"
+
+#ifdef X86_SSE42_CMP_STR
+
+#include <immintrin.h>
+#ifdef _MSC_VER
+#  include <nmmintrin.h>
+#endif
+
+/* UNALIGNED_OK, SSE4.2 intrinsic comparison */
+static inline uint32_t compare256_unaligned_sse4_static(const unsigned char *src0, const unsigned char *src1) {
+    uint32_t len = 0;
+
+    do {
+        #define mode _SIDD_UBYTE_OPS | _SIDD_CMP_EQUAL_EACH | _SIDD_NEGATIVE_POLARITY
+        __m128i xmm_src0, xmm_src1;
+        uint32_t ret;
+
+        xmm_src0 = _mm_loadu_si128((__m128i *)src0);
+        xmm_src1 = _mm_loadu_si128((__m128i *)src1);
+        ret = (uint32_t)_mm_cmpestri(xmm_src0, 16, xmm_src1, 16, mode);
+        if (_mm_cmpestrc(xmm_src0, 16, xmm_src1, 16, mode)) {
+            return len + ret;
+        }
+        src0 += 16, src1 += 16, len += 16;
+
+        xmm_src0 = _mm_loadu_si128((__m128i *)src0);
+        xmm_src1 = _mm_loadu_si128((__m128i *)src1);
+        ret = (uint32_t)_mm_cmpestri(xmm_src0, 16, xmm_src1, 16, mode);
+        if (_mm_cmpestrc(xmm_src0, 16, xmm_src1, 16, mode)) {
+            return len + ret;
+        }
+        src0 += 16, src1 += 16, len += 16;
+    } while (len < 256);
+
+    return 256;
+}
+
+static inline uint32_t compare258_unaligned_sse4_static(const unsigned char *src0, const unsigned char *src1) {
+    if (*(uint16_t *)src0 != *(uint16_t *)src1)
+        return (*src0 == *src1);
+
+    return compare256_unaligned_sse4_static(src0+2, src1+2) + 2;
+}
+
+Z_INTERNAL uint32_t compare258_unaligned_sse4(const unsigned char *src0, const unsigned char *src1) {
+    return compare258_unaligned_sse4_static(src0, src1);
+}
+
+#define LONGEST_MATCH   longest_match_unaligned_sse4
+#define COMPARE256      compare256_unaligned_sse4_static
+#define COMPARE258      compare258_unaligned_sse4_static
+
+#include "match_tpl.h"
+
+#endif