3 Commits

Author	SHA1	Message	Date
Philip Reames	7d6e8f2a96	[slp] Delete dead scalar instructions feeding vectorized instructions ... If we vectorize a e.g. store, we leave around a bunch of getelementptrs for the individual scalar stores which we removed. We can go ahead and delete them as well. This is purely for test output quality and readability. It should have no effect in any sane pipeline. Differential Revision: https://reviews.llvm.org/D122493	2022-03-28 20:10:13 -07:00
Alexey Bataev	6f2e087631	[SLP]Do not represent splats as node with the reused scalars. ... No need to represent splats as a node with the reused scalars, it may increase the cost (currently pass just ignores extra shuffle cost and it is still not correct). Differential Revision: https://reviews.llvm.org/D115800	2021-12-15 06:33:11 -08:00
Alexey Bataev	46bbd254c1	[SLP][NFC]Add a test for broadcast cost with undefs, NFC.	2021-12-15 05:58:47 -08:00