llvm-project

Commit Graph

Author	SHA1	Message	Date
Davide Italiano	d15477b09d	Revert "[GVN/PRE] Hoist global values outside of loops." There's no agreement about this patch. I personally find the PRE machinery of the current GVN hard enough to reason about that I'm not sure I'll try to land this again, instead of working on the rewrite). llvm-svn: 284796	2016-10-21 01:37:02 +00:00
Davide Italiano	590ad7037e	[GVN/PRE] Hoist global values outside of loops. In theory this could be generalized to move anything where we prove the operands are available, but that would require rewriting PRE. As NewGVN will hopefully come soon, and we're trying to rewrite PRE in terms of NewGVN+MemorySSA, it's probably not worth spending too much time on it. Fix provided by Daniel Berlin! llvm-svn: 284311	2016-10-15 21:35:23 +00:00
Davide Italiano	4edd54794b	[GVN] Move other PRE tests to a subdirectory. llvm-svn: 275742	2016-07-17 23:55:20 +00:00

Author

SHA1

Message

Date

Davide Italiano

d15477b09d

Revert "[GVN/PRE] Hoist global values outside of loops."

There's no agreement about this patch. I personally find the
PRE machinery of the current GVN hard enough to reason about
that I'm not sure I'll try to land this again, instead of working
on the rewrite).

llvm-svn: 284796

2016-10-21 01:37:02 +00:00

Davide Italiano

590ad7037e

[GVN/PRE] Hoist global values outside of loops.

In theory this could be generalized to move anything where
we prove the operands are available, but that would require
rewriting PRE. As NewGVN will hopefully come soon, and we're
trying to rewrite PRE in terms of NewGVN+MemorySSA, it's probably
not worth spending too much time on it. Fix provided by
Daniel Berlin!

llvm-svn: 284311

2016-10-15 21:35:23 +00:00

Davide Italiano

4edd54794b

[GVN] Move other PRE tests to a subdirectory.

llvm-svn: 275742

2016-07-17 23:55:20 +00:00

3 Commits