1 files changed, 0 insertions, 55 deletions
diff --git a/lib/libcxx/src/filesystem/int128_builtins.cpp b/lib/libcxx/src/filesystem/int128_builtins.cpp
deleted file mode 100644
index 66adbdd2dc8..00000000000
--- a/lib/libcxx/src/filesystem/int128_builtins.cpp
+++ /dev/null
@@ -1,55 +0,0 @@
-/*===-- int128_builtins.cpp - Implement __muloti4 --------------------------===
- *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
- *
- * ===----------------------------------------------------------------------===
- *
- * This file implements __muloti4, and is stolen from the compiler_rt library.
- *
- * FIXME: we steal and re-compile it into filesystem, which uses __int128_t,
- * and requires this builtin when sanitized. See llvm.org/PR30643
- *
- * ===----------------------------------------------------------------------===
- */
-#include "__config"
-#include "climits"
-
-#if !defined(_LIBCPP_HAS_NO_INT128)
-
-extern "C" __attribute__((no_sanitize("undefined")))
-__int128_t __muloti4(__int128_t a, __int128_t b, int* overflow) {
-  const int N = (int)(sizeof(__int128_t) * CHAR_BIT);
-  const __int128_t MIN = (__int128_t)1 << (N - 1);
-  const __int128_t MAX = ~MIN;
-  *overflow = 0;
-  __int128_t result = a * b;
-  if (a == MIN) {
-    if (b != 0 && b != 1)
-      *overflow = 1;
-    return result;
-  }
-  if (b == MIN) {
-    if (a != 0 && a != 1)
-      *overflow = 1;
-    return result;
-  }
-  __int128_t sa = a >> (N - 1);
-  __int128_t abs_a = (a ^ sa) - sa;
-  __int128_t sb = b >> (N - 1);
-  __int128_t abs_b = (b ^ sb) - sb;
-  if (abs_a < 2 || abs_b < 2)
-    return result;
-  if (sa == sb) {
-    if (abs_a > MAX / abs_b)
-      *overflow = 1;
-  } else {
-    if (abs_a > MIN / -abs_b)
-      *overflow = 1;
-  }
-  return result;
-}
-
-#endif