llvm::computeLiveIns

Computes registers live‐in to MBB assuming all of its successors live‐in lists are up‐to‐date. Puts the result into the given LivePhysReg instance LiveRegs.

Synopsis

Declared in <llvm/CodeGen/LivePhysRegs.h>

void
computeLiveIns(
    LivePhysRegs& LiveRegs,
    MachineBasicBlock const& MBB);

Parameters

Name

Description

LiveRegs

A set of physical registers with utility functions to track liveness when walking backward/forward through a basic block.

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