blob: df030769fd40bde2077fa6eeed9a23e2c0209c24 [file] [log] [blame]
//===-- aeabi_uidivmod.S - EABI uidivmod implementation -------------------===//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
#include "../assembly.h"
// struct { unsigned quot, unsigned rem}
// __aeabi_uidivmod(unsigned numerator, unsigned denominator) {
// unsigned rem, quot;
// quot = __udivmodsi4(numerator, denominator, &rem);
// return {quot, rem};
// }
#if defined(__MINGW32__)
#define __aeabi_uidivmod __rt_udiv
.syntax unified
.p2align 2
#if defined(USE_THUMB_1)
cmp r0, r1
bcc LOCAL_LABEL(case_denom_larger)
push {r0, r1, lr}
bl SYMBOL_NAME(__aeabi_uidiv)
pop {r1, r2, r3}
muls r2, r0, r2 // r2 = quot * denom
subs r1, r1, r2
JMP (r3)
movs r1, r0
movs r0, #0
JMP (lr)
#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
bl SYMBOL_NAME(__udivmodsi4)
ldr r1, [sp]
add sp, sp, #4
pop { pc }