Austin Seipp 3b6c07c398 nextpnr: enable OpenMP support (for Eigen) ... The new HEaP analytic placer for NextPNR uses Eigen for underlying placement algorithms. Enabling -DUSE_OPENMP passes -fopenmp onto the compiler, which Eigen picks up automatically with no extra work. This should result in placer speedups for large designs, e.g. on ECP5 85k chips. Signed-off-by: Austin Seipp <aseipp@pobox.com>		2019-04-15 00:17:54 -05:00
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default.nix	nextpnr: enable OpenMP support (for Eigen)	2019-04-15 00:17:54 -05:00