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Rules: 1. SCEVUnknown is a pointer if and only if the LLVM IR value is a pointer. 2. SCEVPtrToInt is never a pointer. 3. If any other SCEV expression has no pointer operands, the result is an integer. 4. If a SCEVAddExpr has exactly one pointer operand, the result is a pointer. 5. If a SCEVAddRecExpr's first operand is a pointer, and it has no other pointer operands, the result is a pointer. 6. If every operand of a SCEVMinMaxExpr is a pointer, the result is a pointer. 7. Otherwise, the SCEV expression is invalid. I'm not sure how useful rule 6 is in practice. If we exclude it, we can guarantee that ScalarEvolution::getPointerBase always returns a SCEVUnknown, which might be a helpful property. Anyway, I'll leave that for a followup. This is basically mop-up at this point; all the changes with significant functional effects have landed. Some of the remaining changes could be split off, but I don't see much point. Differential Revision: https://reviews.llvm.org/D105510 |
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.. | ||
Inputs/ir2native_x86_64_model | ||
AliasAnalysisTest.cpp | ||
AliasSetTrackerTest.cpp | ||
AssumeBundleQueriesTest.cpp | ||
BasicAliasAnalysisTest.cpp | ||
BlockFrequencyInfoTest.cpp | ||
BranchProbabilityInfoTest.cpp | ||
CallGraphTest.cpp | ||
CaptureTrackingTest.cpp | ||
CFGTest.cpp | ||
CGSCCPassManagerTest.cpp | ||
CMakeLists.txt | ||
ConstraintSystemTest.cpp | ||
DDGTest.cpp | ||
DivergenceAnalysisTest.cpp | ||
DomTreeUpdaterTest.cpp | ||
FunctionPropertiesAnalysisTest.cpp | ||
GlobalsModRefTest.cpp | ||
InlineCostTest.cpp | ||
IRSimilarityIdentifierTest.cpp | ||
IVDescriptorsTest.cpp | ||
LazyCallGraphTest.cpp | ||
LoadsTest.cpp | ||
LoopInfoTest.cpp | ||
LoopNestTest.cpp | ||
MemoryBuiltinsTest.cpp | ||
MemorySSATest.cpp | ||
PhiValuesTest.cpp | ||
ProfileSummaryInfoTest.cpp | ||
ScalarEvolutionTest.cpp | ||
SparsePropagation.cpp | ||
TargetLibraryInfoTest.cpp | ||
TBAATest.cpp | ||
TFUtilsTest.cpp | ||
UnrollAnalyzerTest.cpp | ||
ValueLatticeTest.cpp | ||
ValueTrackingTest.cpp | ||
VectorFunctionABITest.cpp | ||
VectorUtilsTest.cpp |