[clang] [Clang] Apply exclude_from_explicit_instantiation to dllimport/dllexport (PR #168171)

[Hans Wennborg via cfe-commits]

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@@ -0,0 +1,181 @@
+// RUN: %clang_cc1 -triple x86_64-win32 -fms-extensions -emit-llvm -o - %s | \
+// RUN:     FileCheck %s --check-prefixes=MSC --implicit-check-not=to_be_ --implicit-check-not=dllexport
+// RUN: %clang_cc1 -triple x86_64-mingw                 -emit-llvm -o - %s | \
+// RUN:     FileCheck %s --check-prefixes=GNU --implicit-check-not=to_be_ --implicit-check-not=dllexport
+// RUN: %clang_cc1 -triple x86_64-cygwin                -emit-llvm -o - %s | \
+// RUN:     FileCheck %s --check-prefixes=GNU --implicit-check-not=to_be_ --implicit-check-not=dllexport
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zmodem wrote:

But if the behavior is the same (same stuff gets exported or not), maybe it would be enough to check for one of the targets?

I'm just trying to think of ways to simplify the test.

https://github.com/llvm/llvm-project/pull/168171