4d694b27c3
This patch makes vectorizable_load and vectorizable_store cope with variable-length vectors. The reverse and permute cases will be excluded by the code that checks the permutation mask (although a patch after the main SVE submission adds support for the reversed case). Here we also need to exclude VMAT_ELEMENTWISE and VMAT_STRIDED_SLP, which split the operation up into a constant number of constant-sized operations. We also don't try to extend the current widening gather/scatter support to variable-length vectors, since SVE uses a different approach. 2018-01-03 Richard Sandiford <richard.sandiford@linaro.org> Alan Hayward <alan.hayward@arm.com> David Sherwood <david.sherwood@arm.com> gcc/ * tree-vect-stmts.c (get_load_store_type): Treat the number of units as polynomial. Reject VMAT_ELEMENTWISE and VMAT_STRIDED_SLP for variable-length vectors. (vectorizable_mask_load_store): Treat the number of units as polynomial, asserting that it is constant if the condition has already been enforced. (vectorizable_store, vectorizable_load): Likewise. Co-Authored-By: Alan Hayward <alan.hayward@arm.com> Co-Authored-By: David Sherwood <david.sherwood@arm.com> From-SVN: r256136 |
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| config | ||
| contrib | ||
| fixincludes | ||
| gcc | ||
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