| // 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" |
| |
| // di_int __muldi3(di_int a, di_int b); |
| |
| #ifdef __i386__ |
| |
| .text |
| .balign 4 |
| DEFINE_COMPILERRT_FUNCTION(__muldi3) |
| pushl %ebx |
| movl 16(%esp), %eax // b.lo |
| movl 12(%esp), %ecx // a.hi |
| imull %eax, %ecx // b.lo * a.hi |
| |
| movl 8(%esp), %edx // a.lo |
| movl 20(%esp), %ebx // b.hi |
| imull %edx, %ebx // a.lo * b.hi |
| |
| mull %edx // EDX:EAX = a.lo * b.lo |
| addl %ecx, %ebx // EBX = (a.lo*b.hi + a.hi*b.lo) |
| addl %ebx, %edx |
| |
| popl %ebx |
| retl |
| END_COMPILERRT_FUNCTION(__muldi3) |
| |
| #endif // __i386__ |
| |
| NO_EXEC_STACK_DIRECTIVE |
| |
