[llvm-testresults] buildbot failure in lab.llvm.org on phase1 - sanity

[llvmlab-buildmaster at lab.llvm.org]

The Buildbot has detected a new failure on builder phase1 - sanity while building llvm.
Full details are available at:
 http://lab.llvm.org:8013/builders/phase1%20-%20sanity/builds/4354

Buildbot URL: http://lab.llvm.org:8013/

Buildslave for this Build: macpro1

Build Reason: scheduler
Build Source Stamp: 217102
Blamelist: majnemer

BUILD FAILED: failed

sincerely,
 -The Buildbot


================================================================================

CHANGES:
Files:
 lib/Transforms/Scalar/IndVarSimplify.cpp
 test/Transforms/IndVarSimplify/2011-10-27-lftrnull.ll
 test/Transforms/IndVarSimplify/lftr-address-space-pointers.ll
 test/Transforms/IndVarSimplify/lftr-extend-const.ll
 test/Transforms/IndVarSimplify/lftr-reuse.ll
 test/Transforms/IndVarSimplify/pr20680.ll
On: http://10.1.1.2/svn/llvm-project
For: llvm
At: Wed 03 Sep 2014 16:15:30
Changed By: majnemer
Comments: IndVarSimplify: Don't let LFTR compare against a poison value

LinearFunctionTestReplace tries to use the *next* indvar to compare
against when possible.  However, it may be the case that the calculation
for the next indvar has NUW/NSW flags and that it may only be safely
used inside the loop.  Using it in a comparison to calculate the exit
condition could result in observing poison.

This fixes PR20680.

Differential Revision: http://reviews.llvm.org/D5174Properties: 




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