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Commit 8dbcc589 authored by Joel Galenson's avatar Joel Galenson
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Use SCEV to avoid inserting some bounds checks. 

This patch uses SCEV to avoid inserting some bounds checks when they are not needed.  This slightly improves the performance of code compiled with the bounds check sanitizer.

Differential Revision: https://reviews.llvm.org/D49602

llvm-svn: 337830
parent 32417245
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