Duncan P. N. Exon Smith 4fd9b7e16f Scalar: Ignore ConstantData in processAssumption
Assumptions on UndefValue and ConstantPointerNull aren't relevant to
other users.  Ignore them entirely to avoid wasting cycles walking
through their (possibly extremely extensive (cross-module)) use-lists.

It wasn't clear how to add a specific test for this, and it'll be
covered anyway by an eventual patch that asserts when trying to access
the use-list of an instance of ConstantData.

llvm-svn: 282334
2016-09-24 20:00:38 +00:00
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llvm with tablegen backend for capstone disassembler
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