This patch makes the vectoriser try mixtures of 64-bit and 128-bit vector modes on AArch64. It fixes some existing XFAILs and allows kernel 24 from the Livermore Loops test to be vectorised (by using a mixture of V2DF and V2SI). 2019-11-14 Richard Sandiford <richard.sandiford@arm.com> gcc/ * config/aarch64/aarch64.c (aarch64_vectorize_related_mode): New function. (aarch64_autovectorize_vector_modes): Also add V4HImode and V2SImode. (TARGET_VECTORIZE_RELATED_MODE): Define. gcc/testsuite/ * gcc.dg/vect/vect-outer-4f.c: Expect the test to pass on aarch64 targets. * gcc.dg/vect/vect-outer-4g.c: Likewise. * gcc.dg/vect/vect-outer-4k.c: Likewise. * gcc.dg/vect/vect-outer-4l.c: Likewise. * gfortran.dg/vect/vect-8.f90: Expect kernel 24 to be vectorized for aarch64. * gcc.target/aarch64/vect_mixed_sizes_1.c: New test. * gcc.target/aarch64/vect_mixed_sizes_2.c: Likewise. * gcc.target/aarch64/vect_mixed_sizes_3.c: Likewise. * gcc.target/aarch64/vect_mixed_sizes_4.c: Likewise. From-SVN: r278243
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