1// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 2// See https://llvm.org/LICENSE.txt for license information. 3// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 4 5#include "../assembly.h" 6 7// di_int __muldi3(di_int a, di_int b); 8 9#ifdef __i386__ 10 11.text 12.balign 4 13DEFINE_COMPILERRT_FUNCTION(__muldi3) 14 pushl %ebx 15 movl 16(%esp), %eax // b.lo 16 movl 12(%esp), %ecx // a.hi 17 imull %eax, %ecx // b.lo * a.hi 18 19 movl 8(%esp), %edx // a.lo 20 movl 20(%esp), %ebx // b.hi 21 imull %edx, %ebx // a.lo * b.hi 22 23 mull %edx // EDX:EAX = a.lo * b.lo 24 addl %ecx, %ebx // EBX = (a.lo*b.hi + a.hi*b.lo) 25 addl %ebx, %edx 26 27 popl %ebx 28 retl 29END_COMPILERRT_FUNCTION(__muldi3) 30 31#endif // __i386__ 32 33NO_EXEC_STACK_DIRECTIVE 34 35