[compiler-rt] [compiler-rt] [Darwin] libFuzzer tests should use darwin_filter_host_archs (PR #160578)

[Andrew Haberlandt via llvm-commits]

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@@ -63,10 +63,16 @@ if ("-fvisibility=hidden" IN_LIST LIBFUZZER_CFLAGS)
   list(APPEND LIBFUZZER_UNITTEST_CFLAGS "-fvisibility=hidden")
 endif()
 
-if(COMPILER_RT_DEFAULT_TARGET_ARCH IN_LIST FUZZER_SUPPORTED_ARCH)
-  # libFuzzer unit tests are only run on the host machine.
-  set(arch ${COMPILER_RT_DEFAULT_TARGET_ARCH})
+if(COMPILER_RT_CAN_EXECUTE_TESTS)
+  set(FUZZER_TEST_ARCH ${FUZZER_SUPPORTED_ARCH})
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ndrewh wrote:

It is now only defined once in each of the branches. (darwin_filter_host_archs does not need its output to already be defined, so the set is not necessary in the `if(APPLE)` branch anyway).

https://github.com/llvm/llvm-project/pull/160578