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Lionel Debieve6bda5472020-01-02 11:09:03 +01001//===-- aeabi_ldivmod.S - EABI ldivmod implementation ---------------------===//
2//
Daniel Boulby318e7a52022-10-21 20:20:52 +01003// 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
Lionel Debieve6bda5472020-01-02 11:09:03 +01006//
7//===----------------------------------------------------------------------===//
8
9#include "../assembly.h"
10
11// struct { int64_t quot, int64_t rem}
12// __aeabi_ldivmod(int64_t numerator, int64_t denominator) {
13// int64_t rem, quot;
14// quot = __divmoddi4(numerator, denominator, &rem);
15// return {quot, rem};
16// }
17
18#if defined(__MINGW32__)
19#define __aeabi_ldivmod __rt_sdiv64
20#endif
21
22 .syntax unified
23 .p2align 2
24DEFINE_COMPILERRT_FUNCTION(__aeabi_ldivmod)
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(__divmoddi4)
38 ldr r2, [sp, #8]
39 ldr r3, [sp, #12]
40 add sp, sp, #16
41 pop {r6, pc}
42END_COMPILERRT_FUNCTION(__aeabi_ldivmod)
43
44NO_EXEC_STACK_DIRECTIVE
45