llvm::CodeGenOpt Namespace Reference

Typedefs
using	IDType = int
	Type for the unique integer IDs of code generation optimization levels.

Enumerations
enum	Level : IDType { None = 0 , Less = 1 , Default = 2 , Aggressive = 3 }
	Code generation optimization level. More...

Functions
std::optional< Level >	getLevel (IDType ID)
	Get the Level identified by the integer ID.
std::optional< Level >	parseLevel (char C)
	Parse C as a single digit integer ID and get matching Level.

Typedef Documentation

IDType

using llvm::CodeGenOpt::IDType = typedef int

Type for the unique integer IDs of code generation optimization levels.

Definition at line 55 of file CodeGen.h.

Enumeration Type Documentation

Level

enum llvm::CodeGenOpt::Level : IDType

Code generation optimization level.

Enumerator
None	-O0
Less	-O1
Default	-O2, -Os
Aggressive	-O3

Definition at line 57 of file CodeGen.h.

Function Documentation

getLevel()

std::optional< Level > llvm::CodeGenOpt::getLevel ( IDType  ID )

inline

Get the Level identified by the integer ID.

Returns std::nullopt if ID is invalid.

Definition at line 66 of file CodeGen.h.

Referenced by parseLevel(), and llvm::LTOCodeGenerator::setOptLevel().

parseLevel()

std::optional< Level > llvm::CodeGenOpt::parseLevel ( char  C )

inline

Parse C as a single digit integer ID and get matching Level.

Returns std::nullopt if the input is not a valid digit or not a valid ID.

Definition at line 74 of file CodeGen.h.

References llvm::CallingConv::C, and getLevel().