Commit Graph

4 Commits

Author SHA1 Message Date
Bardia Mahjour ebfe4de2c0 [DDG] Fix duplicate edge removal during pi-block formation
When creating pi-blocks we try to avoid creating duplicate edges
between outside nodes and the pi-block when an edge is of the
same kind and direction as another one that has already been
created. We do this by keeping track of the edges in an
enumerated array called EdgeAlreadyCreated. The problem is that
this array is declared local to the loop that iterates over the
nodes in the pi-block, so the information gets lost every time a
new inside-node is iterated over. The fix is to move the
declaration to the outer loop.

Reviewed By: Meinersbur

Differential Revision: https://reviews.llvm.org/D94094
2021-01-07 10:31:11 -05:00
dfukalov 2ce38b3f03 [NFC] Reduce include files dependency.
1. Removed #include "...AliasAnalysis.h" in other headers and modules.
2. Cleaned up includes in AliasAnalysis.h.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D92489
2020-12-03 18:25:05 +03:00
Simon Pilgrim a5f1f9c9b8 ScalarEvolution.h - reduce LoopInfo.h include to forward declarations. NFC.
Move ScalarEvolution::forgetLoopDispositions implementation to ScalarEvolution.cpp to remove the dependency.

Add implicit header dependency to source files where necessary.
2020-06-17 15:48:23 +01:00
Bardia Mahjour 0d20ed664f [DDG] Data Dependence Graph - Add query function for memory dependencies between two nodes
Summary:
When working with the DDG it's useful to be able to query details of the
memory dependencies between two nodes connected by a memory edge. The DDG
does not hold a copy of the dependencies, but it contains a reference to a
DependenceInfo object through which dependence information can be queried.
This patch adds a query function to the DDG to obtain all the Dependence
objects that exist between instructions of two nodes.

Authored By: bmahjour

Reviewers: Meinersbur, Whitney, etiotto

Reviewed By: Whitney

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D80529
2020-05-27 12:40:14 -04:00