Improve SSE3 detection in tests

ceph-15.2.4-fix_cpu_detection.patch

-diff -uNr ceph-15.2.4/cmake/modules/SIMDExt.cmake ceph-15.2.4-fix_cpu_detection/cmake/modules/SIMDExt.cmake
---- ceph-15.2.4/cmake/modules/SIMDExt.cmake	2020-07-01 01:10:51.000000000 +0930
-+++ ceph-15.2.4-fix_cpu_detection/cmake/modules/SIMDExt.cmake	2020-07-07 11:30:28.234565030 +0930
-@@ -48,32 +48,53 @@
- elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "i386|i686|amd64|x86_64|AMD64")
-   set(HAVE_INTEL 1)
-   if(CMAKE_SYSTEM_PROCESSOR MATCHES "i686|amd64|x86_64|AMD64")
--    CHECK_C_COMPILER_FLAG(-msse HAVE_INTEL_SSE)
-+    execute_process(COMMAND bash -c "gcc -Q --help=target | grep '\\-msse\\s' | grep -c enabled" OUTPUT_VARIABLE RUN_RESULT OUTPUT_STRIP_TRAILING_WHITESPACE)
-+    if (${RUN_RESULT})
-+      set(HAVE_INTEL_SSE 1)
-+    endif()
-     if(HAVE_INTEL_SSE)
-       set(SIMD_COMPILE_FLAGS "${SIMD_COMPILE_FLAGS} -msse")
-     endif()
-     if(CMAKE_SYSTEM_PROCESSOR MATCHES "amd64|x86_64|AMD64")
--      CHECK_C_COMPILER_FLAG(-msse2 HAVE_INTEL_SSE2)
-+      execute_process(COMMAND bash -c "gcc -Q --help=target | grep '\\-msse2\\s' | grep -c enabled" OUTPUT_VARIABLE RUN_RESULT OUTPUT_STRIP_TRAILING_WHITESPACE)
-+      if (${RUN_RESULT})
-+        set(HAVE_INTEL_SSE2 1)
-+      endif()
-       if(HAVE_INTEL_SSE2)
-         set(SIMD_COMPILE_FLAGS "${SIMD_COMPILE_FLAGS} -msse2")
-       endif()
--      CHECK_C_COMPILER_FLAG(-msse3 HAVE_INTEL_SSE3)
-+      execute_process(COMMAND bash -c "gcc -Q --help=target | grep '\\-msse3\\s' | grep -c enabled" OUTPUT_VARIABLE RUN_RESULT OUTPUT_STRIP_TRAILING_WHITESPACE)
-+      if (${RUN_RESULT})
-+        set(HAVE_INTEL_SSE3 1)
-+      endif()
-       if(HAVE_INTEL_SSE3)
-         set(SIMD_COMPILE_FLAGS "${SIMD_COMPILE_FLAGS} -msse3")
-       endif()
--      CHECK_C_COMPILER_FLAG(-mssse3 HAVE_INTEL_SSSE3)
-+      execute_process(COMMAND bash -c "gcc -Q --help=target | grep '\\-mssse3\\s' | grep -c enabled" OUTPUT_VARIABLE RUN_RESULT OUTPUT_STRIP_TRAILING_WHITESPACE)
-+      if (${RUN_RESULT})
-+        set(HAVE_INTEL_SSSE3 1)
-+      endif()
-       if(HAVE_INTEL_SSSE3)
-         set(SIMD_COMPILE_FLAGS "${SIMD_COMPILE_FLAGS} -mssse3")
-       endif()
--      CHECK_C_COMPILER_FLAG(-mpclmul HAVE_INTEL_PCLMUL)
-+      execute_process(COMMAND bash -c "gcc -Q --help=target | grep '\\-mpclmul\\s' | grep -c enabled" OUTPUT_VARIABLE RUN_RESULT OUTPUT_STRIP_TRAILING_WHITESPACE)
-+      if (${RUN_RESULT})
-+        set(HAVE_INTEL_PCLMUL 1)
-+      endif()
-       if(HAVE_INTEL_PCLMUL)
-         set(SIMD_COMPILE_FLAGS "${SIMD_COMPILE_FLAGS} -mpclmul")
-       endif()
--      CHECK_C_COMPILER_FLAG(-msse4.1 HAVE_INTEL_SSE4_1)
-+      execute_process(COMMAND bash -c "gcc -Q --help=target | grep '\\-msse4\\.1\\s' | grep -c enabled" OUTPUT_VARIABLE RUN_RESULT OUTPUT_STRIP_TRAILING_WHITESPACE)
-+      if (${RUN_RESULT})
-+        set(HAVE_INTEL_SSE4_1 1)
-+      endif()
-       if(HAVE_INTEL_SSE4_1)
-         set(SIMD_COMPILE_FLAGS "${SIMD_COMPILE_FLAGS} -msse4.1")
-       endif()
--      CHECK_C_COMPILER_FLAG(-msse4.2 HAVE_INTEL_SSE4_2)
-+      execute_process(COMMAND bash -c "gcc -Q --help=target | grep '\\-msse4\\.2\\s' | grep -c enabled" OUTPUT_VARIABLE RUN_RESULT OUTPUT_STRIP_TRAILING_WHITESPACE)
-+      if (${RUN_RESULT})
-+        set(HAVE_INTEL_SSE4_2 1)
-+      endif()
-       if(HAVE_INTEL_SSE4_2)
-         set(SIMD_COMPILE_FLAGS "${SIMD_COMPILE_FLAGS} -msse4.2")
-       endif()
 diff -uNr ceph-15.2.4/src/test/test_arch.cc ceph-15.2.4-fix_cpu_detection/src/test/test_arch.cc
 --- ceph-15.2.4/src/test/test_arch.cc	2020-07-01 01:10:51.000000000 +0930
 +++ ceph-15.2.4-fix_cpu_detection/src/test/test_arch.cc	2020-07-07 11:30:28.239565039 +0930