[compiler-rt][tests] Define TARGET_FLAGS

[hvdijk]

Summary

D36116 refactored the logic of tests and removed the definition of TARGET_FLAGS, but left one use of it. Restore its definition for that one use, so that an x86_64 test is compiled with -m64.

[hvdijk]

Ping

[hvdijk]

Ping 2

compiler-rt/lib/sanitizer_common/tests/CMakeLists.txt

generate_compiler_rt_tests(SANITIZER_TEST_OBJECTS SanitizerUnitTests
     DEPS gtest
     CFLAGS  ${SANITIZER_TEST_CFLAGS_COMMON} ${extra_flags}
     LINK_FLAGS ${SANITIZER_TEST_LINK_FLAGS_COMMON} ${extra_flags})
 
   if("${CMAKE_SYSTEM_NAME}" STREQUAL "Linux" AND "${arch}" STREQUAL "x86_64")
     # Test that the libc-independent part of sanitizer_common is indeed
     # independent of libc, by linking this binary without libc (here) and
     # executing it (unit test in sanitizer_nolibc_test.cpp).
+    get_target_flags_for_arch(${arch} TARGET_FLAGS)
     clang_compile(sanitizer_nolibc_test_main.${arch}.o
                   sanitizer_nolibc_test_main.cpp
                   CFLAGS ${SANITIZER_TEST_CFLAGS_COMMON} ${TARGET_FLAGS}
                   DEPS ${SANITIZER_TEST_COMPILE_DEPS})
     add_compiler_rt_test(SanitizerUnitTests "Sanitizer-${arch}-Test-Nolibc" ${arch}
                          OBJECTS sanitizer_nolibc_test_main.${arch}.o
                                  -Wl,-whole-archive
                                  libRTSanitizerCommon.test.nolibc.${arch}.a