Artur Pilipenko 7fad7e57e8 Minor refactoring of GEP handling in isDereferenceablePointer ...

For GEP instructions isDereferenceablePointer checks that all indices are constant and within bounds. Replace this index calculation logic to a call to accumulateConstantOffset. Separated from the http://reviews.llvm.org/D9791

Reviewed By: sanjoy

Differential Revision: http://reviews.llvm.org/D9874

llvm-svn: 239299

2015-06-08 11:58:13 +00:00

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