Revert "[flang] Version information in flang/f18"

This reverts commit 844f018.

Author: RichBarton-Arm

flang/test/Driver/version_test.f90

@@ -1,10 +1,7 @@
 ! Check that lit configuration works by checking the compiler version
 
+! RUN: %f18 -V 2>&1 | FileCheck  -check-prefix=VERSION %s
 ! VERSION-NOT:{{![[:space:]]}}
 ! VERSION:{{[[:space:]]}}
-! VERSION-SAME:f18 compiler (under development), version {{[1-9][0-9]*.[0-9]*.[0-9]*}}
+! VERSION-SAME:f18 compiler (under development)
 ! VERSION-EMPTY:
-
-! RUN: %f18 -V 2>&1 | FileCheck  -check-prefix=VERSION %s
-! RUN: %f18 -v 2>&1 | FileCheck  -check-prefix=VERSION %s
-! RUN: %f18 --version 2>&1 | FileCheck  -check-prefix=VERSION %s

flang/test/Preprocessing/compiler_defined_macros.F90

@@ -64,6 +64,5 @@ file(COPY ${CMAKE_BINARY_DIR}/tools/flang/bin/flang DESTINATION ${CMAKE_BINARY_D
 # The flang script to be installed needs a different path to the headers.
 set(FLANG_INTRINSIC_MODULES_DIR ${CMAKE_INSTALL_PREFIX}/include/flang)
 configure_file(${CMAKE_CURRENT_SOURCE_DIR}/flang.sh.in ${FLANG_BINARY_DIR}/bin/flang-install.sh @ONLY)
-configure_file(${CMAKE_CURRENT_SOURCE_DIR}/f18_version.h.in ${CMAKE_CURRENT_BINARY_DIR}/f18_version.h @ONLY)
 
 install(PROGRAMS ${FLANG_BINARY_DIR}/bin/flang-install.sh DESTINATION bin RENAME flang PERMISSIONS OWNER_EXECUTE OWNER_READ OWNER_WRITE)

flang/tools/f18/CMakeLists.txt

@@ -38,8 +38,6 @@
 #include <unistd.h>
 #include <vector>
 
-#include "f18_version.h"
-
 static std::list<std::string> argList(int argc, char *const argv[]) {
   std::list<std::string> result;
   for (int j = 0; j < argc; ++j) {
@@ -392,13 +390,6 @@ void Link(std::vector<std::string> &liblist, std::vector<std::string> &objects,
   }
 }
 
-int printVersion() {
-  llvm::errs() << "\nf18 compiler (under development), version "
-               << __FLANG_MAJOR__ << "." << __FLANG_MINOR__ << "."
-               << __FLANG_PATCHLEVEL__ << "\n";
-  return exitStatus;
-}
-
 int main(int argc, char *const argv[]) {
 
   atexit(CleanUpAtExit);
@@ -420,11 +411,6 @@ int main(int argc, char *const argv[]) {
   options.predefinitions.emplace_back("__F18_MAJOR__", "1");
   options.predefinitions.emplace_back("__F18_MINOR__", "1");
   options.predefinitions.emplace_back("__F18_PATCHLEVEL__", "1");
-  options.predefinitions.emplace_back("__flang__", __FLANG__);
-  options.predefinitions.emplace_back("__flang_major__", __FLANG_MAJOR__);
-  options.predefinitions.emplace_back("__flang_minor__", __FLANG_MINOR__);
-  options.predefinitions.emplace_back(
-      "__flang_patchlevel__", __FLANG_PATCHLEVEL__);
 #if __x86_64__
   options.predefinitions.emplace_back("__x86_64__", "1");
 #endif
@@ -665,16 +651,13 @@ int main(int argc, char *const argv[]) {
           << "Unrecognised options are passed through to the external compiler\n"
           << "set by F18_FC (see defaults).\n";
       return exitStatus;
-    } else if (arg == "-V" || arg == "--version") {
-      return printVersion();
+    } else if (arg == "-V") {
+      llvm::errs() << "\nf18 compiler (under development)\n";
+      return exitStatus;
     } else {
       driver.F18_FCArgs.push_back(arg);
       if (arg == "-v") {
-        if (args.size() > 1) {
-          driver.verbose = true;
-        } else {
-          return printVersion();
-        }
+        driver.verbose = true;
       } else if (arg == "-I") {
         driver.F18_FCArgs.push_back(args.front());
         driver.searchDirectories.push_back(args.front());