This patch dumps the final (merged) list of alias pairs. It also adds:
- WAW and RAW versions of vect-alias-check-8.c
- a "well-ordered" version of vect-alias-check-9.c (i.e. all reads
before any writes)
- a test with mixed steps in the same alias pair
I also tweaked the test value in vect-alias-check-9.c so that the
result was less likely to be accidentally correct if the alias
isn't honoured.
2019-11-16 Richard Sandiford <richard.sandiford@arm.com>
gcc/
* tree-data-ref.c (dump_alias_pair): New function.
(prune_runtime_alias_test_list): Use it to dump each merged alias pair.
gcc/testsuite/
* gcc.dg/vect/vect-alias-check-8.c: Test for the RAW flag.
* gcc.dg/vect/vect-alias-check-9.c: Test for the ARBITRARY flag.
(TEST_VALUE): Use a higher value for early iterations.
* gcc.dg/vect/vect-alias-check-14.c: New test.
* gcc.dg/vect/vect-alias-check-15.c: Likewise.
* gcc.dg/vect/vect-alias-check-16.c: Likewise.
* gcc.dg/vect/vect-alias-check-17.c: Likewise.
From-SVN: r278352
