uplo_mirror.hh

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// A := its upper triangle mirrored into the lower, in place, so Lower-only syev drivers serve
// Upper. The complex diagonal's imaginary part is NOT zeroed. Declaration only: an inline kernel
// here is an ODR error once two TUs call it; instantiations are in uplo_mirror.cc.
// evidence: docs/perf/syev.md#syev-the-upper-to-lower-mirror-for-lower-only-providers
#pragma once
 
#include <batchlas/blas/matrix.hh>
#include <batchlas/util/sycl-device-queue.hh>
 
namespace batchlas {
 
template <Backend B, typename T>
Event mirror_upper_to_lower(Queue& ctx, const MatrixView<T, MatrixFormat::Dense>& a);
 
} // namespace batchlas