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From: brof777 on 18 Apr 2008 01:13
here is the code:
DWORD SomeFunction(DWORD Dw_0, DWORD Dw_1, DWORD Dw_2)
{
return Dw_0 + Dw_1 + Dw_2;
}
void main()
{
DWORD Dw = 0;
DWORD pDw[3] = {1,2,3};
DWORD Dw_Sum = SomeFunction(pDw[Dw++], pDw[Dw++], pDw[Dw++]);
}
I expected VC++ 2008 generate code as SomeFunction(3,2,1) or
SomeFunction(1,2,3), however, the real code is like
SomeFunction(1,1,1)
I debug the and watch assembly code, find the code was generated with
push pDw[0] 3 times, then increase Dw by 3 times.
Can anyone tell me why?
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