move check out of loop

Author: nickdesaulniers

libc/cmake/modules/CheckCompilerFeatures.cmake

@@ -57,3 +57,8 @@ foreach(feature IN LISTS ALL_COMPILER_FEATURES)
 endforeach()
 
 message(STATUS "Compiler features available: ${AVAILABLE_COMPILER_FEATURES}")
+
+### Compiler Feature Detection ###
+
+# clang-8+, gcc-12+
+check_cxx_compiler_flag("-ftrivial-auto-var-init=pattern" LIBC_CC_SUPPORTS_PATTERN_INIT)

libc/cmake/modules/LLVMLibCObjectRules.cmake

@@ -41,8 +41,6 @@ function(_get_common_compile_options output_var flags)
     list(APPEND compile_options "-fno-unwind-tables")
     list(APPEND compile_options "-fno-asynchronous-unwind-tables")
     list(APPEND compile_options "-fno-rtti")
-    # clang-8+, gcc-12+
-    check_cxx_compiler_flag("-ftrivial-auto-var-init=pattern" LIBC_CC_SUPPORTS_PATTERN_INIT)
     if (LIBC_CC_SUPPORTS_PATTERN_INIT)
       list(APPEND compile_options "-ftrivial-auto-var-init=pattern")
     endif()