diff options
Diffstat (limited to 'contrib/llvm-project/compiler-rt/lib/builtins/arm/aeabi_idivmod.S')
-rw-r--r-- | contrib/llvm-project/compiler-rt/lib/builtins/arm/aeabi_idivmod.S | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/contrib/llvm-project/compiler-rt/lib/builtins/arm/aeabi_idivmod.S b/contrib/llvm-project/compiler-rt/lib/builtins/arm/aeabi_idivmod.S new file mode 100644 index 000000000000..bb80e4b96fc1 --- /dev/null +++ b/contrib/llvm-project/compiler-rt/lib/builtins/arm/aeabi_idivmod.S @@ -0,0 +1,50 @@ +//===-- 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 + |