fix: breakpad use miniz

third_party/zlib-ng/arch/power/slide_ppc_tpl.h

@@ -0,0 +1,32 @@
+/* Optimized slide_hash for PowerPC processors
+ * Copyright (C) 2017-2021 Mika T. Lindqvist <postmaster@raasu.org>
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+#include <altivec.h>
+#include "zbuild.h"
+#include "deflate.h"
+
+static inline void slide_hash_chain(Pos *table, uint32_t entries, uint16_t wsize) {
+    const vector unsigned short vmx_wsize = vec_splats(wsize);
+    Pos *p = table;
+
+    do {
+        vector unsigned short value, result;
+
+        value = vec_ld(0, p);
+        result = vec_subs(value, vmx_wsize);
+        vec_st(result, 0, p);
+
+        p += 8;
+        entries -= 8;
+   } while (entries > 0);
+}
+
+void Z_INTERNAL SLIDE_PPC(deflate_state *s) {
+    Assert(s->w_size <= UINT16_MAX, "w_size should fit in uint16_t");
+    uint16_t wsize = (uint16_t)s->w_size;
+
+    slide_hash_chain(s->head, HASH_SIZE, wsize);
+    slide_hash_chain(s->prev, wsize, wsize);
+}