¶bool isConstantOrConstantVector(
    const llvm::MachineInstr& MI,
    const llvm::MachineRegisterInfo& MRI,
    bool AllowFP = true,
    bool AllowOpaqueConstants = true)

Description

Return true if the specified instruction is known to be a constant, or a vector of constants. If \p AllowFP is true, this will consider G_FCONSTANT in addition to G_CONSTANT. If \p AllowOpaqueConstants is true, constant-like instructions such as G_GLOBAL_VALUE will also be considered.

Declared at: llvm/include/llvm/CodeGen/GlobalISel/Utils.h:429

Parameters

const llvm::MachineInstr& MI

const llvm::MachineRegisterInfo& MRI

bool AllowFP = true

bool AllowOpaqueConstants = true