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path: root/src/main/scala/firrtl/passes/CommonSubexpressionElimination.scala
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2021-08-13Modify NoCommonSubexpressionElimination to ↵胡波
NoCommonSubexpressionEliminationAnnotation (#2329) to make it has the same form with NoDCEAnnotation and NoConstantPropagationAnnotation
2021-08-09Implement NoCommonSubexpressionElimination (#2291)Jiuyang Liu
* implement NoCommonSubexpressionElimination to resolve chipsalliance/chisel3#2006 * Update src/main/scala/firrtl/passes/CommonSubexpressionElimination.scala Co-authored-by: Schuyler Eldridge <schuyler.eldridge@sifive.com> Co-authored-by: Schuyler Eldridge <schuyler.eldridge@sifive.com>
2021-08-02add emitter for optimized low firrtl (#2304)Kevin Laeufer
* rearrange passes to enable optimized firrtl emission * Support ConstProp on padded arguments to comparisons with literals * Move shr legalization logic into ConstProp Continue calling ConstProp of shr in Legalize. Co-authored-by: Jack Koenig <koenig@sifive.com> Co-authored-by: Jack Koenig <koenig@sifive.com>
2020-09-16Change to Apache 2.0 License (#1901)Chick Markley
2020-08-14All of src/ formatted with scalafmtchick
2020-06-22Convert PreservesAll to explicit invalidates=falseSchuyler Eldridge
Signed-off-by: Schuyler Eldridge <schuyler.eldridge@ibm.com>
2020-04-22s/dependents/optionalPrerequisiteOf/Schuyler Eldridge
Signed-off-by: Schuyler Eldridge <schuyler.eldridge@ibm.com>
2020-04-22Mixin DependencyAPIMigration to all TransformsSchuyler Eldridge
This mixes in the new DependencyAPIMigration trait into all Transforms and Passes. This enables in-tree transforms/passes to build without deprecation warnings associated with the deprecated CircuitForm. As a consequence of this, every Transform now has UnknownForm as both its inputForm and outputForm. This PR modifies legacy Compiler and testing infrastructure to schedule transforms NOT using mergeTransforms/getLoweringTransforms (which rely on inputForm and outputForm not being UnknownForm), but instead using the Dependency API. Signed-off-by: Schuyler Eldridge <schuyler.eldridge@ibm.com>
2020-03-11Migrate to DependencyAPISchuyler Eldridge
Co-authored-by: Schuyler Eldridge <schuyler.eldridge@ibm.com> Co-authored-by: Albert Magyar <albert.magyar@gmail.com> Signed-off-by: Schuyler Eldridge <schuyler.eldridge@ibm.com>
2019-09-16Rename gender to flowSchuyler Eldridge
The following names are changed: - gender -> flow - Gender -> Flow - MALE -> SourceFlow - FEMALE -> SinkFlow - BIGENDER -> DuplexFlow - UNKNOWNGENDER -> UnknownFlow Signed-off-by: Schuyler Eldridge <schuyler.eldridge@ibm.com>
2019-06-18Use scalafix to remove unused import and deprecated procedure syntax (#1074)Leway Colin
* Add sbt-scalafix * Add scalafix guide to README * Remove Unused Import * Remove deprecated procedure syntax
2017-04-13Speed up CSE by doing CSE on node expression before recording the node (#543)Jack Koenig
This means CSE need only be run once to get same QOR and prevents pathological cases. Fixes #448
2017-03-23Pass now subclasses Transform (#477)Adam Izraelevitz
2016-11-04Cleanup license at top of every file (#364)Jack Koenig
Replace with more sensible comment to see LICENSE rather than including the whole license in every file
2016-06-10API Cleanup - ASTJack
trait AST -> abstract class FirrtlNode Move all IR to new package ir Add import of firrtl.ir._
2016-06-10API Cleanup - StatementJack
trait Stmt -> abstract class Statement (to match Expression) abbrev. exp -> expr BulkConnect -> PartialConnect camelCase things that were snake_case case class Empty() -> case object EmptyStmt Change >120 character Statements to multiline
2016-06-10API Cleanup - ModuleJack
trait Module -> abstract class DefModule InModule -> Module (match concrete syntax) ExModule -> ExtModule (match concrete syntax) Add simple scaladoc for each one
2016-04-14Improve performance of CSE passAndrew Waterman
Repeated calls to hashCode take most of the runtime, so cache it.
2016-04-14Add CSE passAndrew Waterman