[llvm] [llvm][cmake] Quote CMAKE_CXX_COMPILER_ID in string comparison (PR #133332)

[Michael Buch via llvm-commits]

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@@ -11,7 +11,7 @@ endmacro()
 
 # MSVC and /arch:AVX is untested and have created problems before. See:
 # https://github.com/llvm/llvm-project/issues/54645
-if(${CMAKE_CXX_COMPILER_ID} STREQUAL MSVC)
+if("${CMAKE_CXX_COMPILER_ID}" STREQUAL MSVC)
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Michael137 wrote:

Sounds good! That seems to also be how we do it elsewhere in the codebase

https://github.com/llvm/llvm-project/pull/133332