Closes #24953: Merge with 3.5

PC/pyconfig.h

@@ -147,7 +147,11 @@ WIN32 is still required for the locale module.
 #define MS_WINI64
 #define PYD_PLATFORM_TAG "win_ia64"
 #elif defined(_M_X64) || defined(_M_AMD64)
+#if defined(__INTEL_COMPILER)
+#define COMPILER ("[ICC v." _Py_STRINGIZE(__INTEL_COMPILER) " 64 bit (amd64) with MSC v." _Py_STRINGIZE(_MSC_VER) " CRT]")
+#else
 #define COMPILER _Py_PASTE_VERSION("64 bit (AMD64)")
+#endif /* __INTEL_COMPILER */
 #define MS_WINX64
 #define PYD_PLATFORM_TAG "win_amd64"
 #else
@@ -194,7 +198,11 @@ typedef _W64 int ssize_t;
 
 #if defined(MS_WIN32) && !defined(MS_WIN64)
 #if defined(_M_IX86)
+#if defined(__INTEL_COMPILER)
+#define COMPILER ("[ICC v." _Py_STRINGIZE(__INTEL_COMPILER) " 32 bit (Intel) with MSC v." _Py_STRINGIZE(_MSC_VER) " CRT]")
+#else
 #define COMPILER _Py_PASTE_VERSION("32 bit (Intel)")
+#endif /* __INTEL_COMPILER */
 #define PYD_PLATFORM_TAG "win32"
 #elif defined(_M_ARM)
 #define COMPILER _Py_PASTE_VERSION("32 bit (ARM)")