maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity
250,578 Commits 23 Branches 0 Tags 2.2 GiB
Commit Graph

9 Commits

Author SHA1 Message Date
Daniel Berlin d59e8010c5 Don't use our own incorrect version of isTriviallyDeadInstruction in NewGVN. Fixes PR/31472 
llvm-svn: 290549
 2016-12-26 18:44:36 +00:00
Davide Italiano a312ca845c [NewGVN] Fold lookupOperandLeader() when there's only one use. NFCI. 
llvm-svn: 290543
 2016-12-26 16:19:34 +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
Daniel Berlin 65f5f0d728 Rename GVNExpression *ops_ members to *op_* to match conventions in the rest of LLVM 
llvm-svn: 290524
 2016-12-25 22:10:37 +00:00
Davide Italiano 463c32eaf6 [NewGVN] Prefer `auto` to explicit type when the latter is obvious. 
llvm-svn: 290499
 2016-12-24 17:17:21 +00:00
Daniel Berlin 8a6a86146c Mark isOnlyReachableViaThisEdge as const 
llvm-svn: 290468
 2016-12-24 00:04:07 +00:00
Davide Italiano 0ff941620c [NewGVN] Remove (for now) unused code. NFCI. 
llvm-svn: 290420
 2016-12-23 10:28:30 +00:00
Chandler Carruth ee08676102 Enable '-Wstring-conversion' and fix some bad asserts that it helped 
find.

Notable is the assert in NewGVN which had no effect because of the bug.

llvm-svn: 290400
 2016-12-23 01:38:06 +00:00
Davide Italiano 7e274e02ae [GVN] Initial check-in of a new global value numbering algorithm. 
The code have been developed by Daniel Berlin over the years, and
the new implementation goal is that of addressing shortcomings of
the current GVN infrastructure, i.e. long compile time for large
testcases, lack of phi predication, no load/store value numbering
etc...

The current code just implements the "core" GVN algorithm, although
other pieces (load coercion, phi handling, predicate system) are
already implemented in a branch out of tree. Once the core is stable,
we'll start adding pieces on top of the base framework.
The test currently living in test/Transform/NewGVN are a copy
of the ones in GVN, with proper `XFAIL` (missing features in NewGVN).
A flag will be added in a future commit to enable NewGVN, so that
interested parties can exercise this code easily.

Differential Revision:  https://reviews.llvm.org/D26224

llvm-svn: 290346
 2016-12-22 16:03:48 +00:00