Reduction that removes the convention attribute from regular modules. More...
Public Member Functions | |
| uint64_t | match (FModuleOp module) override |
| LogicalResult | rewrite (FModuleOp module) override |
| std::string | getName () const override |
| Return a human-readable name for this reduction pattern. | |
| bool | acceptSizeIncrease () const override |
| Return true if the tool should accept the transformation this reduction performs on the module even if the overall size of the output increases. | |
| bool | isOneShot () const override |
| Return true if the tool should not try to reapply this reduction after it has been successful. | |
| Public Member Functions inherited from circt::OpReduction< FModuleOp > | |
| void | matches (Operation *op, llvm::function_ref< void(uint64_t, uint64_t)> addMatch) override |
| Collect all ways how this reduction can apply to a specific operation. | |
| LogicalResult | rewriteMatches (Operation *op, ArrayRef< uint64_t > matches) override |
| Apply a set of matches of this reduction to a specific operation. | |
| Public Member Functions inherited from circt::Reduction | |
| virtual | ~Reduction () |
| virtual void | beforeReduction (mlir::ModuleOp) |
| Called before the reduction is applied to a new subset of operations. | |
| virtual void | afterReduction (mlir::ModuleOp) |
| Called after the reduction has been applied to a subset of operations. | |
| void | notifyOpErased (Operation *op) |
Additional Inherited Members | |
| Public Attributes inherited from circt::Reduction | |
| std::function< void(Operation *)> | notifyOpErasedCallback = nullptr |
| An optional callback for reductions to communicate removal of operations. | |
Detailed Description
Reduction that removes the convention attribute from regular modules.
Definition at line 2631 of file FIRRTLReductions.cpp.
Member Function Documentation
◆ acceptSizeIncrease()
|
inlineoverridevirtual |
Return true if the tool should accept the transformation this reduction performs on the module even if the overall size of the output increases.
This can be handy for patterns that reduce the complexity of the IR at the cost of some verbosity.
Reimplemented from circt::Reduction.
Definition at line 2642 of file FIRRTLReductions.cpp.
◆ getName()
|
inlineoverridevirtual |
Return a human-readable name for this reduction pattern.
Implements circt::Reduction.
Definition at line 2641 of file FIRRTLReductions.cpp.
◆ isOneShot()
|
inlineoverridevirtual |
Return true if the tool should not try to reapply this reduction after it has been successful.
This is useful for reductions whose match() function keeps returning true even after the reduction has reached a fixed-point and no longer performs any change. An example of this are reductions that apply a lowering pass which always applies but may leave the input unmodified.
This is mainly useful in conjunction with returning true from acceptSizeIncrease(). For reductions that don't accept an increase, the module size has to decrease for them to be considered useful, which prevents the tool from getting stuck at a local point where the reduction applies but produces no change in the input. However, reductions that do accept a size increase can get stuck in this local fixed-point as they keep applying to the same operations and the tool keeps accepting the unmodified input as an improvement.
Reimplemented from circt::Reduction.
Definition at line 2643 of file FIRRTLReductions.cpp.
◆ match()
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inlineoverride |
Definition at line 2632 of file FIRRTLReductions.cpp.
◆ rewrite()
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inlineoverride |
Definition at line 2636 of file FIRRTLReductions.cpp.
References success().
The documentation for this struct was generated from the following file:
- /home/runner/work/circt-www/circt-www/circt_src/lib/Dialect/FIRRTL/FIRRTLReductions.cpp
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