[compiler-rt] [compiler-rt] Don't detect a versioned clang test compiler as GCC (PR #117812)

[Alexander Richardson via llvm-commits]

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@@ -77,9 +77,9 @@ else()
   set(COMPILER_RT_TEST_CXX_COMPILER ${CMAKE_CXX_COMPILER} CACHE PATH "C++ Compiler to use for testing")
 endif()
 
-if("${COMPILER_RT_TEST_COMPILER}" MATCHES "clang[+]*$")
-  set(COMPILER_RT_TEST_COMPILER_ID Clang)
-elseif("${COMPILER_RT_TEST_COMPILER}" MATCHES "clang.*.exe$")
+if ("${COMPILER_RT_TEST_COMPILER}" STREQUAL ${CMAKE_C_COMPILER})
+  set(COMPILER_RT_TEST_COMPILER_ID "${CMAKE_C_COMPILER_ID}")
+elseif("${COMPILER_RT_TEST_COMPILER}" MATCHES "clang[^/]*$")
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arichardson wrote:

Sounds good, will update to use that instead

https://github.com/llvm/llvm-project/pull/117812