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Commit 4488f0c3 authored by Chris Lattner's avatar Chris Lattner
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Fix a case where LegalizeAllNodesNotLeadingTo could take exponential time. 

This manifested itself as really long time to compile
Regression/CodeGen/Generic/2003-05-28-ManyArgs.ll on ppc.
This is PR847.

llvm-svn: 29313
parent 9384400d
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