Fix emhash8 compilation for MinGW.

ninja-build · Nov 5, 2024 · 22a0eba · 22a0eba
1 parent f1a2f42
commit 22a0eba
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Showing 2 changed files with 6 additions and 2 deletions.
diff --git a/src/third_party/emhash/README.ninja b/src/third_party/emhash/README.ninja
@@ -4,4 +4,4 @@ URL: https://github.com/ktprime/emhash
 Copyright: Copyright (c) 2021-2024 Huang Yuanbing & bailuzhou AT 163.com
 SPDX-License-Identifier: MIT
 Local changes:
- - None.
+ - Added includes for _mm_prefetch on MinGW.
diff --git a/src/third_party/emhash/hash_table8.hpp b/src/third_party/emhash/hash_table8.hpp
@@ -58,6 +58,10 @@
     _etail = bucket; \
     _index[bucket] = {bucket, _num_filled++ | ((size_type)(key_hash) & ~_mask)}
 
+#if _WIN32 && defined(_M_IX86)
+#include <xmmintrin.h>
+#endif
+
 namespace emhash8 {
 
 struct DefaultPolicy {
@@ -1237,7 +1241,7 @@ class HashMap
         // misses.  This is intended to overlap with execution of calculating the hash for a key.
 #if __linux__
         __builtin_prefetch(static_cast<const void*>(ctrl));
-#elif _WIN32
+#elif _WIN32 && defined(_M_IX86)
         _mm_prefetch((const char*)ctrl, _MM_HINT_T0);
 #endif
     }