[flang-commits] [clang] [flang] [llvm] [flang] Add runtime trampoline pool for W^X compliance (PR #183108)

[Tarun Prabhu via flang-commits]

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@@ -0,0 +1,13 @@
+! Test that -fruntime-trampoline is properly forwarded from driver to
+! frontend, and that -fno-runtime-trampoline (default) works.
+
+! RUN: %flang -### -fruntime-trampoline %s -o %t 2>&1 | FileCheck %s --check-prefix=ON
+! RUN: %flang -### -fno-runtime-trampoline %s -o %t 2>&1 | FileCheck %s --check-prefix=OFF
+! RUN: %flang -### %s -o %t 2>&1 | FileCheck %s --check-prefix=OFF
+! RUN: %flang -### -fruntime-trampoline -fno-runtime-trampoline %s -o %t 2>&1 | FileCheck %s --check-prefix=OFF
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tarunprabhu wrote:

Sorry, I didn't notice this earlier, but is the `-o %t` in these tests necessary? With such tests, it is best to limit the number of options that are passed so it is clear what is being tested.

Although this test doesn't do it, I would generally avoid writing to temporary files if possible 

https://github.com/llvm/llvm-project/pull/183108