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//===-- aeabi_idivmod.S - EABI idivmod implementation ---------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
#include "../assembly.h"
// struct { int quot, int rem} __aeabi_idivmod(int numerator, int denominator) {
// int rem, quot;
// quot = __divmodsi4(numerator, denominator, &rem);
// return {quot, rem};
// }
#if defined(__MINGW32__)
#define __aeabi_idivmod __rt_sdiv
#endif
.syntax unified
.text
DEFINE_CODE_STATE
.p2align 2
DEFINE_COMPILERRT_FUNCTION(__aeabi_idivmod)
#if defined(USE_THUMB_1)
push {r0, r1, lr}
bl SYMBOL_NAME(__divsi3)
pop {r1, r2, r3} // now r0 = quot, r1 = num, r2 = denom
muls r2, r0, r2 // r2 = quot * denom
subs r1, r1, r2
JMP (r3)
#else // defined(USE_THUMB_1)
push { lr }
sub sp, sp, #4
mov r2, sp
#if defined(__MINGW32__)
mov r3, r0
mov r0, r1
mov r1, r3
#endif
bl SYMBOL_NAME(__divmodsi4)
ldr r1, [sp]
add sp, sp, #4
pop { pc }
#endif // defined(USE_THUMB_1)
END_COMPILERRT_FUNCTION(__aeabi_idivmod)
NO_EXEC_STACK_DIRECTIVE
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