Commit Graph

12 Commits

Author SHA1 Message Date
dan sinclair
eda2cfbe12
Cleanup includes. (#1795)
This Cl cleans up the include paths to be relative to the top level
directory. Various include-what-you-use fixes have been added.
2018-08-03 15:06:09 -04:00
dan sinclair
58a6876cee
Rewrite include guards (#1793)
This CL rewrites the include guards to make PRESUBMIT.py include guard
check happy.
2018-08-03 08:05:33 -04:00
dan sinclair
c7da51a085
Cleanup extraneous namespace qualifies in source/opt. (#1716)
This CL follows up on the opt namespacing CLs by removing the
unnecessary opt:: and opt::analysis:: namespace prefixes.
2018-07-12 15:14:43 -04:00
dan sinclair
e477e7573e
Remove the module from opt::Function. (#1717)
The function class provides a {Set|Get}Parent call in order to provide
the context to the LoopDescriptor methods. This CL removes the module
from Function and provides the needed context directly to LoopDescriptor
on creation.
2018-07-12 14:42:05 -04:00
dan sinclair
a5e4a53217
Remove context() method from opt::Function (#1700)
This CL removes the context() method from opt::Function. In the places
where the context() was used we can retrieve, or provide, the context in
another fashion.
2018-07-12 10:16:15 -04:00
dan sinclair
e6b953361d
Move the ir namespace to opt. (#1680)
This CL moves the files in opt/ to consistenly be under the opt::
namespace. This frees up the ir:: namespace so it can be used to make a
shared ir represenation.
2018-07-09 11:32:29 -04:00
Victor Lomuller
efc5061929 Dominator analysis interface clean.
Remove the CFG requirement when querying a dominator/post-dominator from an IRContext.

Updated all uses of the function and tests.
2018-04-20 15:41:59 -04:00
Victor Lomuller
3497a94460 Add loop unswitch pass.
It moves all conditional branching and switch whose conditions are loop
invariant and uniform. Before performing the loop unswitch we check that
the loop does not contain any instruction that would prevent it
(barriers, group instructions etc.).
2018-02-27 08:52:46 -05:00
Stephen McGroarty
dd8400e150 Initial support for loop unrolling.
This patch adds initial support for loop unrolling in the form of a
series of utility classes which perform the unrolling. The pass can
be run with the command spirv-opt --loop-unroll. This will unroll
loops within the module which have the unroll hint set. The unroller
imposes a number of requirements on the loops it can unroll. These are
documented in the comments for the LoopUtils::CanPerformUnroll method in
loop_utils.h. Some of the restrictions will be lifted in future patches.
2018-02-14 15:44:38 -05:00
Victor Lomuller
e8ad02f3dd Add loop descriptors and some required dominator tree extensions.
Add post-order tree iterator.

Add DominatorTreeNode extensions:
 - Add begin/end methods to do pre-order and post-order tree traversal from a given DominatorTreeNode

Add DominatorTree extensions:
  - Add begin/end methods to do pre-order and post-order tree traversal
  - Tree traversal ignore by default the pseudo entry block
  - Retrieve a DominatorTreeNode from a basic block

Add loop descriptor:
  - Add a LoopDescriptor class to register all loops in a given function.
  - Add a Loop class to describe a loop:
    - Loop parent
    - Nested loops
    - Loop depth
    - Loop header, merge, continue and preheader
    - Basic blocks that belong to the loop

Correct a bug that forced dominator tree to be constantly rebuilt.
2018-01-08 09:31:13 -05:00
Victor Lomuller
731d1899b1 Add depth first iterator for trees
- Add generic depth first iterator
 - Update the dominator tree to use this iterator instead of "randomly"
   iterate over the nodes
2017-12-07 10:07:56 -05:00
Stephen McGroarty
8ba68fa9b9 Dominator Tree Analysis (#3)
Support for dominator and post dominator analysis on ir::Functions. This patch contains a DominatorTree class for building the tree and DominatorAnalysis and DominatorAnalysisPass classes for interfacing and caching the built trees.
2017-12-05 22:59:43 -05:00