llvm::matchSelectPattern

Synopses

Declared in <llvm/Analysis/ValueTracking.h>

Const overload of matchSelectPattern.

SelectPatternResult
matchSelectPattern(
    Value const* V,
    Value const*& LHS,
    Value const*& RHS);

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Pattern match integer [SU]MIN, [SU]MAX and ABS idioms, returning the kind and providing the out parameter results if we successfully match.

SelectPatternResult
matchSelectPattern(
    Value* V,
    Value*& LHS,
    Value*& RHS,
    Instruction::CastOps* CastOp = nullptr,
    unsigned int Depth = 0);

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Return Value

Matched select pattern result.

Parameters

Name	Description
V	Select (or equivalent) value to match.
LHS	Output left-hand operand of the matched idiom.
RHS	Output right-hand operand of the matched idiom.
CastOp	Optional output cast needed to unify operand types.
Depth	Current recursion depth for this query.