ghc-7.6.1.20121122: The GHC API

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RegAlloc.Linear.SPARC.FreeRegs

Description

Free regs map for SPARC

Synopsis

Documentation

noFreeRegs :: FreeRegsSource

A reg map where no regs are free to be allocated.

initFreeRegs :: FreeRegsSource

The initial set of free regs.

getFreeRegs :: RegClass -> FreeRegs -> [RealReg]Source

Get all the free registers of this class.

allocateReg :: RealReg -> FreeRegs -> FreeRegsSource

Grab a register.

releaseReg :: RealReg -> FreeRegs -> FreeRegsSource

Release a register from allocation. The register liveness information says that most regs die after a C call, but we still don't want to allocate to some of them.