forked from OSchip/llvm-project
77eeac3d9e
Summary: Support for this option is needed for building Linux kernel. This is a very frequently requested feature by kernel developers. More details : https://lkml.org/lkml/2018/4/4/601 GCC option description for -fdelete-null-pointer-checks: This Assume that programs cannot safely dereference null pointers, and that no code or data element resides at address zero. -fno-delete-null-pointer-checks is the inverse of this implying that null pointer dereferencing is not undefined. This feature is implemented in LLVM IR in this CL as the function attribute "null-pointer-is-valid"="true" in IR (Under review at D47894). The CL updates several passes that assumed null pointer dereferencing is undefined to not optimize when the "null-pointer-is-valid"="true" attribute is present. Reviewers: t.p.northover, efriedma, jyknight, chandlerc, rnk, srhines, void, george.burgess.iv Reviewed By: efriedma, george.burgess.iv Subscribers: eraman, haicheng, george.burgess.iv, drinkcat, theraven, reames, sanjoy, xbolva00, llvm-commits Differential Revision: https://reviews.llvm.org/D47895 llvm-svn: 336613 |
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| .. | ||
| AliasAnalysisTest.cpp | ||
| AliasSetTrackerTest.cpp | ||
| BlockFrequencyInfoTest.cpp | ||
| BranchProbabilityInfoTest.cpp | ||
| CFGTest.cpp | ||
| CGSCCPassManagerTest.cpp | ||
| CMakeLists.txt | ||
| CallGraphTest.cpp | ||
| GlobalsModRefTest.cpp | ||
| LazyCallGraphTest.cpp | ||
| LoopInfoTest.cpp | ||
| MemoryBuiltinsTest.cpp | ||
| MemorySSA.cpp | ||
| OrderedBasicBlockTest.cpp | ||
| PhiValuesTest.cpp | ||
| ProfileSummaryInfoTest.cpp | ||
| ScalarEvolutionTest.cpp | ||
| SparsePropagation.cpp | ||
| TBAATest.cpp | ||
| TargetLibraryInfoTest.cpp | ||
| UnrollAnalyzer.cpp | ||
| ValueLatticeTest.cpp | ||
| ValueTrackingTest.cpp | ||