MaskOps Struct Reference

This is used by foldAnyOrAllBitsSet() to capture a source value (Root) and the bit indexes (Mask) needed by a masked compare. More...

Public Member Functions
	MaskOps (unsigned BitWidth, bool MatchAnds)

Public Attributes
Value *	Root = nullptr
APInt	Mask
bool	MatchAndChain
bool	FoundAnd1 = false

Detailed Description

This is used by foldAnyOrAllBitsSet() to capture a source value (Root) and the bit indexes (Mask) needed by a masked compare.

If we're matching a chain of 'and' ops, then we also need to capture the fact that we saw an "and X, 1", so that's an extra return value for that case.

Definition at line 175 of file AggressiveInstCombine.cpp.

Constructor & Destructor Documentation

MaskOps()

MaskOps::MaskOps ( unsigned  BitWidth, bool  MatchAnds  )

inline

Definition at line 181 of file AggressiveInstCombine.cpp.

Member Data Documentation

FoundAnd1

bool MaskOps::FoundAnd1 = false

Definition at line 179 of file AggressiveInstCombine.cpp.

Referenced by foldAnyOrAllBitsSet(), and matchAndOrChain().

Mask

APInt MaskOps::Mask

Definition at line 177 of file AggressiveInstCombine.cpp.

Referenced by foldAnyOrAllBitsSet(), and matchAndOrChain().

MatchAndChain

bool MaskOps::MatchAndChain

Definition at line 178 of file AggressiveInstCombine.cpp.

Referenced by matchAndOrChain().

Root

Value* MaskOps::Root = nullptr

Definition at line 176 of file AggressiveInstCombine.cpp.

Referenced by foldAnyOrAllBitsSet(), and matchAndOrChain().

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The documentation for this struct was generated from the following file:

• lib/Transforms/AggressiveInstCombine/AggressiveInstCombine.cpp