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because this is what they are about. "Fused" means "no intermediate rounding between the mul and the add, only one rounding at the end". Instead, what we are concerned about here is whether a temporary register is needed, i.e. whether the MUL and ADD are separate instructions. Concretely, on ARM NEON, a single-instruction mul-add is always available: VMLA. But a true fused mul-add is only available on VFPv4: VFMA. |
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.. | ||
src | ||
Cholesky | ||
CholmodSupport | ||
CMakeLists.txt | ||
Core | ||
Dense | ||
Eigen | ||
Eigenvalues | ||
Geometry | ||
Householder | ||
IterativeLinearSolvers | ||
Jacobi | ||
LU | ||
MetisSupport | ||
OrderingMethods | ||
PardisoSupport | ||
PaStiXSupport | ||
QR | ||
QtAlignedMalloc | ||
Sparse | ||
SparseCholesky | ||
SparseCore | ||
SparseLU | ||
SparseQR | ||
SPQRSupport | ||
StdDeque | ||
StdList | ||
StdVector | ||
SuperLUSupport | ||
SVD | ||
UmfPackSupport |