enable DYNAMIC_BMI2 by default on x86 (32-bit mode)

so far was only enabled for x64 (64-bit mode)
facebook · Jan 19, 2025 · 4bbf4a2 · 4bbf4a2
1 parent 9fbed33
commit 4bbf4a2
Showing 1 changed file with 6 additions and 6 deletions.
diff --git a/lib/common/portability_macros.h b/lib/common/portability_macros.h
@@ -78,15 +78,15 @@
  * Enabled for clang & gcc >=4.8 on x86 when BMI2 isn't enabled by default.
  */
 #ifndef DYNAMIC_BMI2
-  #if ((defined(__clang__) && __has_attribute(__target__)) \
+#  if ((defined(__clang__) && __has_attribute(__target__)) \
       || (defined(__GNUC__) \
           && (__GNUC__ >= 5 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 8)))) \
-      && (defined(__x86_64__) || defined(_M_X64)) \
+      && (defined(__i386__) || defined(__x86_64__) || defined(_M_IX86) || defined(_M_X64)) \
       && !defined(__BMI2__)
-  #  define DYNAMIC_BMI2 1
-  #else
-  #  define DYNAMIC_BMI2 0
-  #endif
+#    define DYNAMIC_BMI2 1
+#  else
+#    define DYNAMIC_BMI2 0
+#  endif
 #endif
 
 /**