getIConstantSplatSExtVal overloads
Synopses
Declared in <llvm/CodeGen/GlobalISel/Utils.h>
Return the scalar sign‐extended integral splat value of Reg if possible.
std::optional<int64_t>
getIConstantSplatSExtVal(
Register const Reg,
MachineRegisterInfo const& MRI);Return the scalar sign‐extended integral splat value defined by MI if possible.
std::optional<int64_t>
getIConstantSplatSExtVal(
MachineInstr const& MI,
MachineRegisterInfo const& MRI);Return Value
The sign‐extended splat value, or std::nullopt.
Parameters
Name |
Description |
Reg |
Virtual register that may define a splat constant. |
MRI |
Register information for the function. |
MI |
Instruction that may define a splat constant. |
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