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1//===-- aeabi_uldivmod.S - EABI uldivmod implementation -------------------===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8
9#include "../assembly.h"
10
11// struct { uint64_t quot, uint64_t rem}
12//        __aeabi_uldivmod(uint64_t numerator, uint64_t denominator) {
13//   uint64_t rem, quot;
14//   quot = __udivmoddi4(numerator, denominator, &rem);
15//   return {quot, rem};
16// }
17
18#if defined(__MINGW32__)
19#define __aeabi_uldivmod __rt_udiv64
20#endif
21
22        .syntax unified
23        .p2align 2
24DEFINE_COMPILERRT_FUNCTION(__aeabi_uldivmod)
25        push	{r6, lr}
26        sub	sp, sp, #16
27        add	r6, sp, #8
28        str	r6, [sp]
29#if defined(__MINGW32__)
30        movs    r6, r0
31        movs    r0, r2
32        movs    r2, r6
33        movs    r6, r1
34        movs    r1, r3
35        movs    r3, r6
36#endif
37        bl	SYMBOL_NAME(__udivmoddi4)
38        ldr	r2, [sp, #8]
39        ldr	r3, [sp, #12]
40        add	sp, sp, #16
41        pop	{r6, pc}
42END_COMPILERRT_FUNCTION(__aeabi_uldivmod)
43
44NO_EXEC_STACK_DIRECTIVE
45
46