5 Commits

Author	SHA1	Message	Date
Daniel Berlin	c1305af09b	NewGVN: Evaluate phi of ops expressions before creating phi node ... llvm-svn: 314611	2017-09-30 23:51:54 +00:00
Chad Rosier	a5508e3119	[NewGVN] Add CL option to control the generation of phi-of-ops (disable by default). ... Differential Revision: https://reviews.llvm.org/D36478539 llvm-svn: 310594	2017-08-10 14:12:57 +00:00
Daniel Berlin	b527b2cf13	Last of the major pieces to NewGVN - yay! ... Summary: NewGVN: Handle equivalence between phi of ops and op of phis. This makes our GVN mostly-complete. It would be complete, modulo some deliberate choices we make. This means it detects roughly all herband equivalences in polynomial time, including cases notoriously hard for other GVN's to detect. It also detects a very large swath of the cases we currently rely on instcombine to detect that involve folding upwards through phis. Fixes PR 31125, 31463, PR 31868 Reviewers: davide Subscribers: Prazek, llvm-commits Differential Revision: https://reviews.llvm.org/D32151 llvm-svn: 303444	2017-05-19 19:01:27 +00:00
Daniel Berlin	f7d9580a08	NewGVN: Start making use of predicateinfo pass. ... Summary: This begins using the predicateinfo pass in NewGVN. Reviewers: davide Subscribers: llvm-commits, Prazek Differential Revision: https://reviews.llvm.org/D29682 llvm-svn: 295583	2017-02-18 23:06:50 +00:00
Daniel Berlin	d7c12ee54c	Value number stores and memory states so we can detect when memory states are equivalent (IE store of same value to memory). ... Reviewers: davide Subscribers: llvm-commits Differential Revision: https://reviews.llvm.org/D28084 llvm-svn: 290525	2016-12-25 22:23:49 +00:00