llvm-6502/lib/Transforms
David Majnemer c0f2b8b528 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

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217102 91177308-0d34-0410-b5e6-96231b3b80d8
2014-09-03 23:03:18 +00:00
..
Hello [CMake] Add LLVM_LINK_COMPONENTS to loadable modules, LLVMHello and BugpointPasses, on Win32. 2014-07-13 13:36:48 +00:00
InstCombine Revert "Revert two GEP-related InstCombine commits" 2014-09-01 21:10:02 +00:00
Instrumentation [asan] add -asan-coverage=3: instrument all blocks and critical edges. 2014-09-03 22:37:37 +00:00
IPO Add pass-manager flags to use CFL AA 2014-09-02 22:12:54 +00:00
ObjCARC Simplify creation of a bunch of ArrayRefs by using None, makeArrayRef or just letting them be implicitly created. 2014-08-27 05:25:25 +00:00
Scalar IndVarSimplify: Don't let LFTR compare against a poison value 2014-09-03 23:03:18 +00:00
Utils Feed AA to the inliner and use AA->getModRefBehavior in AddAliasScopeMetadata 2014-09-01 09:01:39 +00:00
Vectorize Preserve IR flags (nsw, nuw, exact, fast-math) in SLP vectorizer (PR20802). 2014-09-03 17:40:30 +00:00
CMakeLists.txt Extracted ObjCARC.cpp into its own library libLLVMObjCARCOpts in preparation for refactoring the ARC Optimizer. 2013-01-28 01:35:51 +00:00
LLVMBuild.txt Extracted ObjCARC.cpp into its own library libLLVMObjCARCOpts in preparation for refactoring the ARC Optimizer. 2013-01-28 01:35:51 +00:00
Makefile Extracted ObjCARC.cpp into its own library libLLVMObjCARCOpts in preparation for refactoring the ARC Optimizer. 2013-01-28 01:35:51 +00:00