chore: import upstream snapshot with attribution

2026-07-13 12:06:04 +08:00
commit 86c9b1c39f
7743 changed files with 3316339 additions and 0 deletions
@@ -0,0 +1,16 @@
+#include <emmintrin.h>
+
+inline __m128i _v128_comgt_epu32(const __m128i& a, const __m128i& b)
+{
+    const __m128i delta = _mm_set1_epi32((int)0x80000000);
+    return _mm_cmpgt_epi32(_mm_xor_si128(a, delta), _mm_xor_si128(b, delta));
+}
+
+int main()
+{
+    __m128i a, b, c;
+    a = _mm_set1_epi32(0x00000000);
+    b = _mm_set1_epi32(0x0000ffff);
+    c = _v128_comgt_epu32(a, b);
+    return 0;
+}