Remove tzcnt_u32

Antares0982 · Dec 25, 2024 · 3fb954d · 3fb954d
1 parent 363b560
commit 3fb954d
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Showing 2 changed files with 1 addition and 25 deletions.
diff --git a/src/encode/encode_unicode_impl.inl.h b/src/encode/encode_unicode_impl.inl.h
@@ -262,7 +262,7 @@ force_inline UnicodeVector *VECTOR_WRITE_UNICODE_IMPL(UnicodeVector **restrict v
             bit_mask = to_bitmask_128(mask);
 #endif // COMPILE_READ_UCS_LEVEL
             assert(bit_mask);
-            u32 done_count = tzcnt_u32((u32) bit_mask) / sizeof(_FROM_TYPE);
+            u32 done_count = u32_tz_bits((u32) bit_mask) / sizeof(_FROM_TYPE);
             // vec = VECTOR_WRITE_ESCAPE_IMPL(vec_addr, src, CHECK_COUNT_MAX, len - CHECK_COUNT_MAX);
             // src += CHECK_COUNT_MAX;
 #endif

diff --git a/src/simd/simd_impl.h b/src/simd/simd_impl.h
@@ -449,28 +449,4 @@ force_inline SIMD_HALF_TYPE load_half(const void *src) {
 
 #endif // SIMD_BIT_SIZE > 128
 
-/*==============================================================================
- * TZCNT.
- *============================================================================*/
-force_inline u32 tzcnt_u32(u32 x) {
-    // never pass a zero here.
-    assert(x);
-#if __BMI__
-// real gcc check from yyjson
-#if !defined(__clang__) && !defined(__INTEL_COMPILER) && !defined(__ICC) && defined(__GNUC__)
-    return __tzcnt_u32(x);
-#else
-    return _mm_tzcnt_32(x);
-#endif
-#else
-    #if defined(_MSC_VER)
-        unsigned long index = 0;
-        _BitScanForward(&index, x);
-        return index;
-    #else
-        return __builtin_ctz(x);
-    #endif
-#endif
-}
-
 #endif // ENCODE_SIMD_IMPL_H