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diff --git a/contrib/llvm-project/compiler-rt/lib/builtins/arm/divmodsi4.S b/contrib/llvm-project/compiler-rt/lib/builtins/arm/divmodsi4.S
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+++ b/contrib/llvm-project/compiler-rt/lib/builtins/arm/divmodsi4.S
@@ -0,0 +1,70 @@
+//===-- divmodsi4.S - 32-bit signed integer divide and modulus ------------===//
+//
+// 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 the __divmodsi4 (32-bit signed integer divide and
+// modulus) function for the ARM architecture.  A naive digit-by-digit
+// computation is employed for simplicity.
+//
+//===----------------------------------------------------------------------===//
+
+#include "../assembly.h"
+
+#define ESTABLISH_FRAME    \
+    push   {r4-r7, lr}   ;\
+    add     r7,     sp, #12
+#define CLEAR_FRAME_AND_RETURN \
+    pop    {r4-r7, pc}
+
+	.syntax unified
+	.text
+  DEFINE_CODE_STATE
+
+@ int __divmodsi4(int divident, int divisor, int *remainder)
+@   Calculate the quotient and remainder of the (signed) division.  The return
+@   value is the quotient, the remainder is placed in the variable.
+
+	.p2align 3
+DEFINE_COMPILERRT_FUNCTION(__divmodsi4)
+#if __ARM_ARCH_EXT_IDIV__
+	tst     r1, r1
+	beq     LOCAL_LABEL(divzero)
+	mov 	r3, r0
+	sdiv	r0, r3, r1
+	mls 	r1, r0, r1, r3
+	str 	r1, [r2]
+	bx  	lr
+LOCAL_LABEL(divzero):
+	mov     r0, #0
+	bx      lr
+#else
+    ESTABLISH_FRAME
+//  Set aside the sign of the quotient and modulus, and the address for the
+//  modulus.
+    eor     r4,     r0, r1
+    mov     r5,     r0
+    mov     r6,     r2
+//  Take the absolute value of a and b via abs(x) = (x^(x >> 31)) - (x >> 31).
+    eor     ip,     r0, r0, asr #31
+    eor     lr,     r1, r1, asr #31
+    sub     r0,     ip, r0, asr #31
+    sub     r1,     lr, r1, asr #31
+//  Unsigned divmod:
+    bl      SYMBOL_NAME(__udivmodsi4)
+//  Apply the sign of quotient and modulus
+    ldr     r1,    [r6]
+    eor     r0,     r0, r4, asr #31
+    eor     r1,     r1, r5, asr #31
+    sub     r0,     r0, r4, asr #31
+    sub     r1,     r1, r5, asr #31
+    str     r1,    [r6]
+    CLEAR_FRAME_AND_RETURN
+#endif
+END_COMPILERRT_FUNCTION(__divmodsi4)
+
+NO_EXEC_STACK_DIRECTIVE
+