MDEV-22749 Implement portable PCLMUL accelerated crc32() with Intel i…

…ntrinsics

Removed some inine assembly, replaced by code from
https://github.com/intel/soft-crc

Also,replace GCC inline assembly for cpuid in ut0crc32 with __cpuid,
to fix "PIC register clobbered by 'ebx' in 'asm'.
This enables fast CRC32C on 32bit Intel processors with GCC.

mysys/CMakeLists.txt

@@ -60,20 +60,21 @@ ENDIF()
 
 IF(MSVC)
   SET(HAVE_CPUID_INSTRUCTION 1 CACHE BOOL "")
-ELSEIF(CMAKE_SYSTEM_PROCESSOR MATCHES "x86_64|amd64|i[36]86")
-  #Check for CPUID and PCLMUL. GCC before version 5 would refuse to emit the
-  #CPUID instruction for -m32 -fPIC because it would clobber the EBX register.
-  CHECK_C_SOURCE_COMPILES("
-  int main()
-  {
-    asm volatile (\"cpuid\" : : \"a\"(1) : \"ebx\");
-    asm volatile (\"pclmulqdq \\$0x00, %%xmm1, %%xmm0\":::\"cc\");
-    return 0;
-  }" HAVE_CLMUL_INSTRUCTION)
-
-  IF(HAVE_CLMUL_INSTRUCTION)
-    SET(HAVE_CPUID_INSTRUCTION 1 CACHE BOOL "")
+  SET(HAVE_CLMUL_INSTRUCTION 1 CACHE BOOL "")
+  SET(MYSYS_SOURCES ${MYSYS_SOURCES} crc32/crc32_x86.c)
+  IF(CLANG_CL)
+    SET_SOURCE_FILES_PROPERTIES(crc32/crc32_x86.c PROPERTIES COMPILE_FLAGS "-msse4.2 -mpclmul")
+  ENDIF()
+ELSEIF(CMAKE_SYSTEM_PROCESSOR MATCHES "x86_64|amd64|i386|i686")
+  SET(HAVE_CPUID_INSTRUCTION 1 CACHE BOOL "")
+  MY_CHECK_C_COMPILER_FLAG(-msse4.2)
+  MY_CHECK_C_COMPILER_FLAG(-mpclmul)
+  CHECK_INCLUDE_FILE(cpuid.h HAVE_CPUID_H)
+  CHECK_INCLUDE_FILE(x86intrin.h HAVE_X86INTRIN_H)
+  IF(have_C__msse4.2 AND have_C__mpclmul AND HAVE_CPUID_H AND HAVE_X86INTRIN_H)
+    SET(HAVE_CLMUL_INSTRUCTION 1 CACHE BOOL "")
     SET(MYSYS_SOURCES ${MYSYS_SOURCES} crc32/crc32_x86.c)
+    SET_SOURCE_FILES_PROPERTIES(crc32/crc32_x86.c PROPERTIES COMPILE_FLAGS "-msse4.2 -mpclmul")
   ENDIF()
 ELSEIF(CMAKE_SYSTEM_PROCESSOR MATCHES "aarch64|AARCH64")
   IF(CMAKE_COMPILER_IS_GNUCC AND NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 5.1)