dblaikie added inline comments.

================
Comment at: clang/test/CodeGenCXX/inconsistent-export-template.cpp:1-11
+// RUN: %clang_cc1 -std=c++20 %s -S -emit-llvm -triple %itanium_abi_triple 
-disable-llvm-passes -o - | FileCheck %s
+
+export module m;
+export template <class T>
+void f() {
+}
+
----------------
Is this test worth keeping now that we've got the unit test? It's not testing 
the linkage, by the looks of it & @aaron.ballman made a fair point that this 
code change doesn't touch codegen, so the AST unit test is probably more 
suitable.


================
Comment at: clang/unittests/AST/DeclTest.cpp:194-195
+  const FunctionDecl *SpecializedF = Funcs[1].getNodeAs<FunctionDecl>("f");
+  EXPECT_TRUE(TemplateF->getLinkageInternal() ==
+              SpecializedF->getLinkageInternal());
+}
----------------
Maybe use EXPECT_EQ to get better error messages if this fails (that way the 
error message can include the values - whereas written with TRUE+== the error 
message can only include "false") - similarly with the size() == 2, prefer 
EXPECT_EQ(size(), 2)


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D120397/new/

https://reviews.llvm.org/D120397

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