LLVM 20.0.0git
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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 |
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 184 of file AggressiveInstCombine.cpp.
Definition at line 190 of file AggressiveInstCombine.cpp.
bool MaskOps::FoundAnd1 = false |
Definition at line 188 of file AggressiveInstCombine.cpp.
Referenced by foldAnyOrAllBitsSet(), and matchAndOrChain().
APInt MaskOps::Mask |
Definition at line 186 of file AggressiveInstCombine.cpp.
Referenced by foldAnyOrAllBitsSet(), and matchAndOrChain().
bool MaskOps::MatchAndChain |
Definition at line 187 of file AggressiveInstCombine.cpp.
Referenced by matchAndOrChain().
Value* MaskOps::Root = nullptr |
Definition at line 185 of file AggressiveInstCombine.cpp.
Referenced by foldAnyOrAllBitsSet(), and matchAndOrChain().