72c50e51a5
It seems there have only been a small amount to the compiler-rt source code in the mean time. I'd rather have the code in sync as much as possible by the time we release 9.0. Changes: - The libcompiler_rt library is now dual licensed under both the University of Illinois "BSD-Like" license and the MIT license. - Our local modifications for using .hidden instead of .private_extern have been upstreamed, meaning our changes to lib/assembly.h can now be reverted. - A possible endless recursion in __modsi3() has been fixed. - Support for ARM EABI has been added, but it has no effect on FreeBSD (yet). - The functions __udivmodsi4 and __divmodsi4 have been added. Requested by: many, including bf@ and Pedro Giffuni
30 lines
622 B
ArmAsm
30 lines
622 B
ArmAsm
// This file is dual licensed under the MIT and the University of Illinois Open
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// Source Licenses. See LICENSE.TXT for details.
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#include "../assembly.h"
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// di_int __muldi3(di_int a, di_int b);
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#ifdef __i386__
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.text
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.align 4
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DEFINE_COMPILERRT_FUNCTION(__muldi3)
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pushl %ebx
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movl 16(%esp), %eax // b.lo
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movl 12(%esp), %ecx // a.hi
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imull %eax, %ecx // b.lo * a.hi
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movl 8(%esp), %edx // a.lo
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movl 20(%esp), %ebx // b.hi
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imull %edx, %ebx // a.lo * b.hi
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mull %edx // EDX:EAX = a.lo * b.lo
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addl %ecx, %ebx // EBX = (a.lo*b.hi + a.hi*b.lo)
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addl %ebx, %edx
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popl %ebx
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retl
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#endif // __i386__
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