[llvm-dev] Search for specific code line

[Anja Gerbes via llvm-dev]

Dear everyone,

Is it possible in LLVM/clang to search for a specific code line and print out/extract the whole function/relevant code region where the code line was found?

Here is an example. I would like to analyze the c file in https://github.com/UoB-HPC/intro-hpc-jacobi.

Let's say the specific code line is line 62:

dot += A[row + col*N] * x[col];

In that case I would be interested in that code region:

// Perfom Jacobi iteration
	for (row = 0; row < N; row++)
	{
	dot = 0.0;
	for (col = 0; col < N; col++)
	{
	if (row != col)
	dot += A[row + col*N] * x[col];
	}
	xtmp[row] = (b[row] - dot) / A[row + row*N];
	}

How can I get this result via LLVM/clang?

Thank you very much for your ideas!

Best 

Anja