llvm-6502

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David Majnemer 280476e7c6 Merging rr217102:

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r217102 | majnemer | 2014-09-03 16:03:18 -0700 (Wed, 03 Sep 2014) | 11 lines

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/D5174
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_35@223637 91177308-0d34-0410-b5e6-96231b3b80d8

2014-12-08 08:50:22 +00:00

Analysis

Merging rr222376:

2014-12-08 08:48:58 +00:00

AsmParser

Add a dereferenceable attribute

2014-07-18 15:51:28 +00:00

Bitcode

Add a dereferenceable attribute

2014-07-18 15:51:28 +00:00

CodeGen

Merging r214670: