On Sep 23, 2013, at 02:19, Bryan Drewery <bdrew...@freebsd.org> wrote: > On 9/22/2013 5:03 PM, Dimitry Andric wrote: >> Author: dim >> Date: Sun Sep 22 22:03:30 2013 >> New Revision: 255804 >> URL: http://svnweb.freebsd.org/changeset/base/255804 >> >> Log: >> Pull in r191165 from upstream llvm trunk: >> >> ISelDAG: spot chain cycles involving MachineNodes >> >> Previously, the DAGISel function WalkChainUsers was spotting that it >> had entered already-selected territory by whether a node was a >> MachineNode (amongst other things). Since it's fairly common practice >> to insert MachineNodes during ISelLowering, this was not the correct >> check. >> >> Looking around, it seems that other nodes get their NodeId set to -1 >> upon selection, so this makes sure the same thing happens to all >> MachineNodes and uses that characteristic to determine whether we >> should stop looking for a loop during selection. >> >> This should fix PR15840. > > 15840 is for x11-fonts/ucs-fixed. Did you put the wrong one?
No, this is a quote from the upstream commit message, which is referring to http://llvm.org/PR15840 :-) -Dimitry
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