matchSimpleRecurrence overloads

Synopses

Declared in <llvm/Analysis/ValueTracking.h>

Analogous to the above, but starting from the binary operator

bool
matchSimpleRecurrence(
    BinaryOperator const* I,
    PHINode*& P,
    Value*& Start,
    Value*& Step);

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Match a simple first‐order recurrence cycle from a phi node.

bool
matchSimpleRecurrence(
    PHINode const* P,
    BinaryOperator*& BO,
    Value*& Start,
    Value*& Step);

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Return Value

True if a simple recurrence was matched.

Parameters

Name

Description

I

Binary operator that may be the recurrence step.

P

Output phi node of the matched recurrence.

Start

Output starting value of the recurrence.

Step

Output step operand of the recurrence.

BO

Output binary operator of the recurrence step.

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