6d4b59a935
This adds a scatter vectorization capability to the vectorizer without target support by decomposing the offset and data vectors and then performing scalar stores in the order of vector lanes. This is aimed at cases where vectorizing the rest of the loop offsets the cost of vectorizing the scatter. The offset load is still vectorized and costed as such, but like with emulated gather those will be turned back to scalar loads by forwrpop. * tree-vect-data-refs.cc (vect_analyze_data_refs): Always consider scatters. * tree-vect-stmts.cc (vect_model_store_cost): Pass in the gather-scatter info and cost emulated scatters accordingly. (get_load_store_type): Support emulated scatters. (vectorizable_store): Likewise. Emulate them by extracting scalar offsets and data, doing scalar stores. * gcc.dg/vect/pr25413a.c: Un-XFAIL everywhere. * gcc.dg/vect/vect-71.c: Likewise. * gcc.dg/vect/tsvc/vect-tsvc-s4113.c: Likewise. * gcc.dg/vect/tsvc/vect-tsvc-s491.c: Likewise. * gcc.dg/vect/tsvc/vect-tsvc-vas.c: Likewise. |
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| c++tools | ||
| config | ||
| contrib | ||
| fixincludes | ||
| gcc | ||
| gnattools | ||
| gotools | ||
| include | ||
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| libffi | ||
| libgcc | ||
| libgfortran | ||
| libgm2 | ||
| libgo | ||
| libgomp | ||
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| libquadmath | ||
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| libstdc++-v3 | ||
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| lto-plugin | ||
| maintainer-scripts | ||
| zlib | ||
| .dir-locals.el | ||
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| libtool.m4 | ||
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| MAINTAINERS | ||
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