Dimension of the matrices should be same.Ĭonsider two matrices a and b, index of an element in a is i and j then a(i, j) is multiplied with b(i, j) respectively as shown in the figure below. ]Įlement-wise multiplication of two matrices is the algebraic operation in which each element of first matrix is multiplied by its corresponding element in the later matrix.

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fill the temps after subtraction from V to avoid stmt error Have a look: float t_r = 0.0, t_im = 0.0 // two new temporaries

While my understanding is limited to what you want the code to do, the finding is that it'll work fine if you compute real and imag separately.

I made some changes in the code and got your inner performance sensitive loop to vectorize, confirmed by gcc output (though I am not sure the desired outcome is computationally equivalent to what you want). 3 You can upload/drag & drop files from PC. After a lot of trial/error, it became clear that gcc built in vectorization optimizations are sort of hard coded and it doesn't 'understand' complex numbers properly. Follow the step by step guide on how can you convert image png to vector: 1 Enter your email address. If we ignore the alignment and size checks, and the fallback implementation. Vec4f *const end = (vec4f *)_builtin_assume_aligned((void *)(array + count), 16) Ĭonst vec4f *src = (vec4f *)_builtin_assume_aligned((void *)source, 16) Vec4f *ptr = (vec4f *)_builtin_assume_aligned((void *)array, 16) How can I fix the problems that are stopping this part from beingĬuriously this part is vectorized but I am not sure why: for (j = 0 j note: Failed to SLP the basic block. Permanent-in-c.c:48:26: note: Build SLP failed: unrolling required in basic block SLP Permanent-in-c.c:48:26: note: Unknown alignment for access: REALPART_EXPR Permanent-in-c.c:48:26: note: SLP: step doesn't divide the vector-size. The first part just reads in a matrix of complex numbers from standard in into matrix called M.

Coolutils total vectorize