From b0287dcb1c436887075962b596cf2068d2ca9ba8 Mon Sep 17 00:00:00 2001
From: Disservin <disservin.social@gmail.com>
Date: Tue, 28 May 2024 18:00:22 +0200
Subject: [PATCH] apply const to prefetch parameter

closes https://github.com/official-stockfish/Stockfish/pull/5296

No functional change
---
 src/misc.cpp | 6 +++---
 src/misc.h   | 2 +-
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/misc.cpp b/src/misc.cpp
index 1abb81b14c2..58f804204b2 100644
--- a/src/misc.cpp
+++ b/src/misc.cpp
@@ -415,14 +415,14 @@ void start_logger(const std::string& fname) { Logger::start(fname); }
 
 #ifdef NO_PREFETCH
 
-void prefetch(void*) {}
+void prefetch(const void*) {}
 
 #else
 
-void prefetch(void* addr) {
+void prefetch(const void* addr) {
 
     #if defined(_MSC_VER)
-    _mm_prefetch((char*) addr, _MM_HINT_T0);
+    _mm_prefetch((char const*) addr, _MM_HINT_T0);
     #else
     __builtin_prefetch(addr);
     #endif
diff --git a/src/misc.h b/src/misc.h
index d75b236ff71..3a905dfab49 100644
--- a/src/misc.h
+++ b/src/misc.h
@@ -40,7 +40,7 @@ std::string compiler_info();
 // Preloads the given address in L1/L2 cache. This is a non-blocking
 // function that doesn't stall the CPU waiting for data to be loaded from memory,
 // which can be quite slow.
-void prefetch(void* addr);
+void prefetch(const void* addr);
 
 void  start_logger(const std::string& fname);
 void* std_aligned_alloc(size_t alignment, size_t size);