1 files changed, 31 insertions, 0 deletions
diff --git a/contrib/llvm-project/compiler-rt/lib/builtins/parityti2.c b/contrib/llvm-project/compiler-rt/lib/builtins/parityti2.c
new file mode 100644
index 000000000000..011c8dd45562
--- /dev/null
+++ b/contrib/llvm-project/compiler-rt/lib/builtins/parityti2.c
@@ -0,0 +1,31 @@
+//===-- parityti2.c - Implement __parityti2 -------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+//
+// This file implements __parityti2 for the compiler_rt library.
+//
+//===----------------------------------------------------------------------===//
+
+#include "int_lib.h"
+
+#ifdef CRT_HAS_128BIT
+
+// Returns: 1 if number of bits is odd else returns 0
+
+COMPILER_RT_ABI int __parityti2(ti_int a) {
+  twords x;
+  dwords x2;
+  x.all = a;
+  x2.all = x.s.high ^ x.s.low;
+  su_int x3 = x2.s.high ^ x2.s.low;
+  x3 ^= x3 >> 16;
+  x3 ^= x3 >> 8;
+  x3 ^= x3 >> 4;
+  return (0x6996 >> (x3 & 0xF)) & 1;
+}
+
+#endif // CRT_HAS_128BIT