¶bool isBuildVectorAllZeros(
    const llvm::MachineInstr& MI,
    const llvm::MachineRegisterInfo& MRI,
    bool AllowUndef = false)

Description

Return true if the specified instruction is a G_BUILD_VECTOR or G_BUILD_VECTOR_TRUNC where all of the elements are 0 or undef.

Declared at: llvm/include/llvm/CodeGen/GlobalISel/Utils.h:413

Parameters

const llvm::MachineInstr& MI

const llvm::MachineRegisterInfo& MRI

bool AllowUndef = false