[Concepts] Fix ConceptSpecializationExpr profiling crash
ConceptSpecializationExprs (CSEs) were being created with nullptr
TemplateArgsAsWritten during TemplateTemplateParmDecl canonicalization, and
we were relying on them during profiling which caused sporadic crashes
in test/CXX/.../temp.arg.template/p3-2a.cpp introduced in D44352.
Change profiling of CSEs to instead rely on the actual converted template
arguments and concept named.
diff --git a/clang/lib/AST/StmtProfile.cpp b/clang/lib/AST/StmtProfile.cpp
index 2aa5106..c0b0f3b 100644
--- a/clang/lib/AST/StmtProfile.cpp
+++ b/clang/lib/AST/StmtProfile.cpp
@@ -1335,9 +1335,9 @@
void StmtProfiler::VisitConceptSpecializationExpr(
const ConceptSpecializationExpr *S) {
VisitExpr(S);
- VisitDecl(S->getFoundDecl());
- VisitTemplateArguments(S->getTemplateArgsAsWritten()->getTemplateArgs(),
- S->getTemplateArgsAsWritten()->NumTemplateArgs);
+ VisitDecl(S->getNamedConcept());
+ for (const TemplateArgument &Arg : S->getTemplateArguments())
+ VisitTemplateArgument(Arg);
}
static Stmt::StmtClass DecodeOperatorCall(const CXXOperatorCallExpr *S,