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Minor patch to add a graceful exit in the rare case where an invalid combination of TYPE_VECTOR_SUBPARTS for nunits_vectype and *stmt_vectype_out is reached in vect_get_vector_types_for_stmt. This resolves the ICE seen in PR tree-optimization/96974, however the issue of correctly handling this rare vectorization combination is left for a later patch. Bootstrapped and reg-tested on aarch64-linux-gnu. 2021-03-25 Stam Markianos-Wright <stam.markianos-wright@arm.com> gcc/ChangeLog: PR tree-optimization/96974 * tree-vect-stmts.c (vect_get_vector_types_for_stmt): Replace assert with graceful exit. gcc/testsuite/ChangeLog: PR tree-optimization/96974 * g++.target/aarch64/sve/pr96974.C: New test.
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