ghc-7.0.1: The GHC API

RegAlloc.Linear.JoinToTargets

Description

Handles joining of a jump instruction to its targets.

Synopsis

Documentation

joinToTargetsSource

Arguments

:: Instruction instr 
=> BlockMap RegSet

maps the unique of the blockid to the set of vregs that are known to be live on the entry to each block.

-> BlockId

id of the current block

-> instr

branch instr on the end of the source block.

-> RegM ([NatBasicBlock instr], instr) 

For a jump instruction at the end of a block, generate fixup code so its vregs are in the correct regs for its destination.