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diff --git a/contrib/llvm-project/compiler-rt/lib/builtins/divsi3.c b/contrib/llvm-project/compiler-rt/lib/builtins/divsi3.c
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+++ b/contrib/llvm-project/compiler-rt/lib/builtins/divsi3.c
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+//===-- divsi3.c - Implement __divsi3 -------------------------------------===//
+//
+// 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 __divsi3 for the compiler_rt library.
+//
+//===----------------------------------------------------------------------===//
+
+#include "int_lib.h"
+
+// Returns: a / b
+
+COMPILER_RT_ABI si_int __divsi3(si_int a, si_int b) {
+  const int bits_in_word_m1 = (int)(sizeof(si_int) * CHAR_BIT) - 1;
+  si_int s_a = a >> bits_in_word_m1; // s_a = a < 0 ? -1 : 0
+  si_int s_b = b >> bits_in_word_m1; // s_b = b < 0 ? -1 : 0
+  a = (a ^ s_a) - s_a;               // negate if s_a == -1
+  b = (b ^ s_b) - s_b;               // negate if s_b == -1
+  s_a ^= s_b;                        // sign of quotient
+  //
+  // On CPUs without unsigned hardware division support,
+  //  this calls __udivsi3 (notice the cast to su_int).
+  // On CPUs with unsigned hardware division support,
+  //  this uses the unsigned division instruction.
+  //
+  return ((su_int)a / (su_int)b ^ s_a) - s_a; // negate if s_a == -1
+}
+
+#if defined(__ARM_EABI__)
+COMPILER_RT_ALIAS(__divsi3, __aeabi_idiv)
+#endif