llvm::createILPListDAGScheduler

Create a bottom‐up register‐pressure‐aware list scheduler that favors ILP.

Synopsis

Declared in <llvm/CodeGen/SchedulerRegistry.h>

ScheduleDAGSDNodes*
createILPListDAGScheduler(
    SelectionDAGISel* IS,
    CodeGenOptLevel OptLevel);

Description

In low register pressure mode, it tries to increase instruction level parallelism. In high register pressure mode it schedules to reduce register pressure.

Return Value

A new ScheduleDAGSDNodes that favors ILP under low register pressure.

Parameters

Name

Description

Instruction selection pass owning the DAG to schedule.

OptLevel

Codegen optimization level.

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