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Richard Biener aa63c20420 Improve -fopt-info-vec for basic-block vectorization
We currently dump notes like

flow_lam.f:65:72: optimized: basic block part vectorized using 32 byte vectors
flow_lam.f:65:72: optimized: basic block part vectorized using 32 byte vectors
flow_lam.f:65:72: optimized: basic block part vectorized using 32 byte vectors
flow_lam.f:65:72: optimized: basic block part vectorized using 32 byte vectors
..

repeating the same location for multiple instances because we
clobber vect_location during BB vectorization.  The following
avoids this, improving things to

flow_lam.f:15:72: optimized: basic block part vectorized using 32 byte vectors
flow_lam.f:16:72: optimized: basic block part vectorized using 32 byte vectors
flow_lam.f:17:72: optimized: basic block part vectorized using 32 byte vectors
flow_lam.f:18:72: optimized: basic block part vectorized using 32 byte vectors
...

	* tree-vect-slp.cc (vect_slp_region): Save/restore vect_location
	around dumping code.
2023-08-07 15:16:47 +02:00
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