Author: Martin Braenne Date: 2023-07-04T12:06:13Z New Revision: 880f306226fcb97d85d422480954eb8765ff31c7
URL: https://github.com/llvm/llvm-project/commit/880f306226fcb97d85d422480954eb8765ff31c7 DIFF: https://github.com/llvm/llvm-project/commit/880f306226fcb97d85d422480954eb8765ff31c7.diff LOG: [clang][dataflow] Add a test for a struct that is directly self-referential through a reference. The ongoing migration to strict handling of value categories (see https://discourse.llvm.org/t/70086) will change the way we handle fields of reference type, and I want to put a test in place that makes sure we continue to handle this special case correctly. Depends On D154420 Reviewed By: gribozavr2, xazax.hun Differential Revision: https://reviews.llvm.org/D154421 Added: Modified: clang/unittests/Analysis/FlowSensitive/TransferTest.cpp Removed: ################################################################################ diff --git a/clang/unittests/Analysis/FlowSensitive/TransferTest.cpp b/clang/unittests/Analysis/FlowSensitive/TransferTest.cpp index f7210d29d06cc9..2ccd3e82baadc9 100644 --- a/clang/unittests/Analysis/FlowSensitive/TransferTest.cpp +++ b/clang/unittests/Analysis/FlowSensitive/TransferTest.cpp @@ -656,6 +656,30 @@ TEST(TransferTest, SelfReferentialPointerVarDecl) { }); } +TEST(TransferTest, DirectlySelfReferentialReference) { + std::string Code = R"( + struct target { + target() { + (void)0; + // [[p]] + } + target &self = *this; + }; + )"; + runDataflow( + Code, + [](const llvm::StringMap<DataflowAnalysisState<NoopLattice>> &Results, + ASTContext &ASTCtx) { + const Environment &Env = getEnvironmentAtAnnotation(Results, "p"); + const ValueDecl *SelfDecl = findValueDecl(ASTCtx, "self"); + + auto *ThisLoc = Env.getThisPointeeStorageLocation(); + auto *RefVal = + cast<ReferenceValue>(Env.getValue(ThisLoc->getChild(*SelfDecl))); + ASSERT_EQ(&RefVal->getReferentLoc(), ThisLoc); + }); +} + TEST(TransferTest, MultipleVarsDecl) { std::string Code = R"( void target() { _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits