Safe Haskell	None

LLVM.General.PassManager

Description

A PassManager holds collection of passes, to be run on Modules. Build one with withPassManager:

from a CuratedPassSetSpec if you want optimization but not to play with your compiler
from a [Pass] if you do want to play with your compiler
from a ([Pass], TargetLowering) if you want to provide target-specific information (e.g. instruction costs) to the few passes that use it (see comments on Pass).

Synopsis

Documentation

data PassManager

http://llvm.org/doxygen/classllvm_1_1PassManager.html

class PassManagerSpecification s

There are different ways to get a PassManager. This class embodies them.

Instances

PassManagerSpecification CuratedPassSetSpec
PassManagerSpecification [Pass]
PassManagerSpecification ([Pass], TargetLowering)

data CuratedPassSetSpec

This type is a high-level specification of a set of passes. It uses the same collection of passes chosen by the LLVM team in the command line tool opt. The fields of this spec are much like typical compiler command-line flags - e.g. -O<n>, etc.

Constructors

CuratedPassSetSpec
Fields optLevel :: Maybe Int sizeLevel :: Maybe Int unitAtATime :: Maybe Bool simplifyLibCalls :: Maybe Bool useInlinerWithThreshold :: Maybe Int

Instances

PassManagerSpecification CuratedPassSetSpec

defaultCuratedPassSetSpec :: CuratedPassSetSpec

Helper to make a CuratedPassSetSpec

withPassManager :: PassManagerSpecification s => s -> (PassManager -> IO a) -> IO a

bracket the creation of a PassManager

runPassManager :: PassManager -> Module -> IO Bool

run the passes in a PassManager on a Module, modifying the Module.