llvm::sandboxir::BundleVec Class Reference

This is a simple bottom-up (top-down) vectorizer Region pass. More...

#include "llvm/Transforms/Vectorize/SandboxVectorizer/Passes/BundleVec.h"

Inheritance diagram for llvm::sandboxir::BundleVec:

Public Member Functions
	BundleVec (StringRef AuxArg)
bool	runOnRegion (Region &Rgn, const Analyses &A) final
	\Returns true if it modifies R.
Public Member Functions inherited from llvm::sandboxir::RegionPass
	RegionPass (StringRef Name)
	Name can't contain any spaces or start with '-'.
Public Member Functions inherited from llvm::sandboxir::Pass
	Pass (StringRef Name)
	Name can't contain any spaces or start with '-'.
virtual	~Pass ()=default
StringRef	getName () const
	\Returns the name of the pass.
virtual void	print (raw_ostream &OS) const
LLVM_ABI virtual LLVM_DUMP_METHOD void	dump () const
virtual void	printPipeline (raw_ostream &OS) const
	Similar to print() but adds a newline. Used for testing.

Additional Inherited Members
Protected Attributes inherited from llvm::sandboxir::Pass
const std::string	Name
	The pass name.

Detailed Description

This is a simple bottom-up (top-down) vectorizer Region pass.

It expects a "seed slice" as an input in the Region's Aux vector. The "seed slice" is a vector of instructions that can be used as a starting point for vectorization, like stores (loads) to consecutive memory addresses. Starting from the seed instructions, it recursively walks up (down) the use-def (def-use) chains, forming a bundle of instructions per operand (user) position, for as long as these bundles can be vectorized. This pass will generate vector code if it can legally vectorize the code, regardless of whether it is profitable or not. For now profitability is checked at the end of the region pass pipeline by a dedicated pass that accepts or rejects the IR transaction, depending on the cost.

Definition at line 39 of file BundleVec.h.

Constructor & Destructor Documentation

BundleVec()

llvm::sandboxir::BundleVec::BundleVec ( StringRef AuxArg )

inline

Definition at line 111 of file BundleVec.h.

References llvm::sandboxir::BottomUp, llvm::sandboxir::RegionPass::RegionPass(), llvm::reportFatalUsageError(), and llvm::sandboxir::TopDown.

Member Function Documentation

runOnRegion()

bool llvm::sandboxir::BundleVec::runOnRegion ( Region & R, const Analyses & A )

finalvirtual

\Returns true if it modifies R.

Implements llvm::sandboxir::RegionPass.

Definition at line 591 of file BundleVec.cpp.

References A(), assert(), F, and llvm::sandboxir::Region::getAux().

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The documentation for this class was generated from the following files:

• include/llvm/Transforms/Vectorize/SandboxVectorizer/Passes/BundleVec.h
• lib/Transforms/Vectorize/SandboxVectorizer/Passes/BundleVec.cpp