[LLVMdev] Debugging/Fixing 'Interval not live at use' errors

Jakob Stoklund Olesen stoklund at 2pi.dk
Tue Oct 23 08:50:52 PDT 2012


On Oct 23, 2012, at 2:10 AM, Stephen McGruer <stephen.mcgruer at gmail.com> wrote:

> I have a target backend which is currently causing live interval analysis to throw 'Interval not live at use' errors for many of my benchmarks. I imagine that this is caused by missing information for my target (probably in the instructioninfo tablegen?), but I am having difficulties in both debugging and fixing this problem, and would appreciate any advice or help anyone can give.

Probably, -verify-machineinstrs will tell you what's wrong.

/jakob

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