Max Kazantsev 745df76f6b Re-enable "[SCEV] Prove implications of different type via truncation" ... When we need to prove implication of expressions of different type width, the default strategy is to widen everything to wider type and prove in this type. This does not interact well with AddRecs with negative steps and unsigned predicates: such AddRec will likely not have a `nuw` flag, and its `zext` to wider type will not be an AddRec. In contraty, `trunc` of an AddRec in some cases can easily be proved to be an `AddRec` too. This patch introduces an alternative way to handling implications of different type widths. If we can prove that wider type values actually fit in the narrow type, we truncate them and prove the implication in narrow type. The return was due to revert of underlying patch that this one depends on. Unit test temporarily disabled because the required logic in SCEV is switched off due to compile time reasons. Differential Revision: https://reviews.llvm.org/D89548		2020-10-28 16:02:14 +07:00
..
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
IRSimilarityIdentifierTest.cpp
IVDescriptorsTest.cpp
LazyCallGraphTest.cpp
LoadsTest.cpp
LoopInfoTest.cpp
LoopNestTest.cpp
MemoryBuiltinsTest.cpp
MemorySSATest.cpp
PhiValuesTest.cpp
ProfileSummaryInfoTest.cpp	Revert "Use uint64_t for branch weights instead of uint32_t"	2020-10-27 09:26:21 -04:00
ScalarEvolutionTest.cpp	Re-enable "[SCEV] Prove implications of different type via truncation"	2020-10-28 16:02:14 +07:00
SparsePropagation.cpp
TargetLibraryInfoTest.cpp
TBAATest.cpp
TFUtilsTest.cpp
UnrollAnalyzerTest.cpp
ValueLatticeTest.cpp
ValueTrackingTest.cpp
VectorFunctionABITest.cpp
VectorUtilsTest.cpp