Added missing check _M_IX86 or _M_X64 when using __lzcnt. (#1217)

Signed-off-by: Dirk Lemstra <dirk@lemstra.org>
AcademySoftwareFoundation · Jan 14, 2022 · 157857e · 157857e
1 parent 4cc01e5
commit 157857e
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/lib/OpenEXRCore/internal_coding.h b/src/lib/OpenEXRCore/internal_coding.h
@@ -143,7 +143,7 @@ half_to_float (uint16_t hv)
     else if (hexpmant != 0)
     {
         uint32_t lc;
-#    if defined(_MSC_VER)
+#    if defined(_MSC_VER) && (_M_IX86 || _M_X64)
         lc = __lzcnt (hexpmant);
 #    elif defined(__GNUC__) || defined(__clang__)
         lc = (uint32_t) __builtin_clz (hexpmant);