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Here is a bit more data. After PrescheduleNodesWithMultipleUses has been run, the following Predecessor/Successor links are 'dumpAll'ed. (I attach the full dumpAll before & after "Prescheduling SU #7 next to PredSU #4 to guide scheduling in the presence of multiple uses") SU(3) Predecessors: val SU(5): Latency=1 ch SU(7): Latency=1 val SU(7): Latency=1 SU(7):

Hi, I have an assert firing due to PickNodeToScheduleBottomUp(): 1. having a CallResource in use pushing an interference of current SUnit. 2. having no more SUnits in the AvailableQueue 3. The only interference being the SUnit that just failed due to a Call Resource. 4. An attempt to duplicate this node which has the 'Call Resource' as a physical register. Thus the call

...fine e.g. add an extra 'undef' argument to f2 viz: double @f2(i32, double, double, double). This example only fails for xcore targets. Robert -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20130821/cb019ffb/attachment.html> -------------- next part -------------- A non-text attachment was scrubbed... Name: PatchCallResourceDeadLock Type: application/octet-stream Size: 5359 bytes Desc: PatchCallResourceDeadLock URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20130821/cb019ffb/attachmen...