[LLVMdev] Memory dependence analysis

[Andreas Wilhelm]

Hello,

I'm looking for a way to identify dependencies of function-pairs (memory-dependency, control-dependency...) in order to parallelize them.
For aliasing problems I use the DataStructureAnalysis. To solve simple memory- and control-dependency problems I want to use
memdep. But unfortunately I even fail with following simple C++ example...

int a( int n) { return n; }
int b( int n) { return n; }
int c( int n) { return n; }

int main( int argc, char** argv) {

  int x = a( argc);
  b( 0);
	
  if ( x)
    x = 0;

  return ( c( x));	
}

... The result of memdep shows a dependency between the callsite of b() and the call of a(). Why?
Moreover I want to get the dependency between the call to c() and the result of a(). How can I obtain this?

Thanks in advance,
Andreas
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