2 Commits

Author	SHA1	Message	Date
Adam Nemet	e0efebb8eb	[Matrix] In transpose opts, handle a^t * a^t ... Without the fix the testcase crashes because we remove the same instruction twice. Differential Revision: https://reviews.llvm.org/D104127	2021-06-11 09:29:43 -07:00
Adam Nemet	dfd1bbd00a	[Matrix] Factor and distribute transposes across multiplies ... Now that we can fold some transposes into multiplies (CM: A * B^t and RM: A^t * B), we want to move them around to create the optimal expressions: * fold away double transposes while still using them to assert the shape * sink transposes hoping they cancel out * lift transposes when both operands are transposed This also modifies the matrix remarks to include the number of exposed transposes (i.e. transposes that we couldn't fold into a multiply). The adjustment to the test remarks-inlining is a bit subtle: I am changing the double transpose to a single transpose so that we don't remove it completely. More importantly this changes some of the total instruction count, most notable stores because we can no longer use a vector store. Differential Revision: https://reviews.llvm.org/D102733	2021-05-25 11:12:20 -07:00