[build] Remove classic flang components and build scripts

bin/README.md

@@ -162,7 +162,7 @@ There are options to select a subset of components to build and install.
 ```
 2) Select a subset of components to build.
 ```
-  ./build_aomp.sh select openmp flang flang_runtime
+  ./build_aomp.sh select openmp
 ```
 The default AOMP source build is a standalone build of all components needed for compilation and execution with the exception of the kfd Linux kernel module for AMD GPUs or the CUDA SDK for Nvidia GPUs.
 
@@ -298,7 +298,7 @@ export AOMP_GPU=`/opt/rocm/lib/llvm/bin/offload-arch`
 
 ## The AOMP developer patch subsystem
 
-Of the many repos identified above, AOMP developers may only change core aomp repositories (llvm-project, aomp, aomp-extras, and flang).  AOMP required changes to other non-core components must be patched. The [patches/README.md](patches/README.md)  describes the AOMP patch mechanism in detail.
+Of the many repos identified above, AOMP developers may only change core aomp repositories (llvm-project, aomp, and aomp-extras).  AOMP required changes to other non-core components must be patched. The [patches/README.md](patches/README.md)  describes the AOMP patch mechanism in detail.
 
 ## Building debuggable compiler
 
@@ -328,16 +328,3 @@ The default is 1, which creates these CMake vars:
 ```
 
 Change it to 0 to avoid `ccache`.
-
-
-## AOMP_SKIP_FLANG
-
-The default for this variable is 0. Setting this to 1 will shorten build time by
-changing the defaults for AOMP_COMPONENT_LIST and AOMP_PROJECTS_LIST to
-
-```
-AOMP_COMPONENT_LIST=" prereq project"
-AOMP_PROJECTS_LIST="clang;lld"
-```
-
-The AOMP_SKIP_FLANG variable is for developers working upstream but not on LLVM flang.

bin/aomp_common_vars

@@ -95,9 +95,7 @@ else
                     -DCMAKE_CXX_COMPILER_LAUNCHER="$_ccache_bin")
 fi
 
-AOMP_SKIP_FLANG=${AOMP_SKIP_FLANG:-1}
 AOMP_SKIP_FLANG_NEW=${AOMP_SKIP_FLANG_NEW:-0}
-AOMP_FLANG_DRIVER=${AOMP_FLANG_DRIVER:-flang}
 AOMP_SKIP_AMD_FLANGRT=${AOMP_SKIP_AMD_FLANGRT:-1}
 
 if [ "$AOMP_SKIP_FLANG_NEW" == 1 ] ; then
@@ -414,16 +412,6 @@ else
     AOMP_PROJECT_REPO_NAME="../llvm-project"
   fi
 fi
-AOMP_FLANG_REPO_NAME=${AOMP_FLANG_REPO_NAME:-flang}
-
-# Last version of rocm (5.5) that supports the legacy driver (command generation)
-# The archives are built during flang-classic.
-AOMP_FLANG_CLASSIC_REL=${AOMP_FLANG_CLASSIC_REL:-${AOMP_REPOS}/${AOMP_FLANG_REPO_NAME}/flang-classic}
-if [ -d "$AOMP_FLANG_CLASSIC_REL/llvm-classic" ] ; then
-   AOMP_BUILD_FLANG_CLASSIC=1
-else
-   AOMP_BUILD_FLANG_CLASSIC=0
-fi
 
 # The AOMP_XXX_REPO_NAME is the directory name following $AOMP_REPOS.
 

bin/build_aomp.sh

@@ -76,17 +76,6 @@ if ! $TOPSUDO touch "$AOMP_INSTALL_DIR/testfile"; then
 fi
 $TOPSUDO rm "$AOMP_INSTALL_DIR/testfile"
 
-#Check for gawk on Ubuntu, which is needed for the flang build.
-GAWK=$(gawk --version | grep "^GNU Awk")
-OS=$(grep "^NAME=" < /etc/os-release)
-
-if [[ -z "$GAWK" ]] && [[ "$OS" == *"Ubuntu"* ]] ; then
-   echo
-   echo "Build Error: gawk was not found and is required for building flang! Please run 'sudo apt-get install gawk' and run build_aomp.sh again."
-   echo
-   exit 1
-fi
-
 if [ "$DISABLE_LLVM_TESTS" == "1" ]; then
   export DO_TESTS="-DLLVM_INCLUDE_TESTS=OFF -DCLANG_INCLUDE_TESTS=OFF"
 fi
@@ -104,12 +93,9 @@ if [ "$AOMP_STANDALONE_BUILD" == 1 ] ; then
   # rocclr, we have no HIP or OpenCL for ppc64 :-( However, rocr works for ppc64 so AOMP works.
   if [ "$_hostarch" == "x86_64" ] ; then
     # These components build on x86_64, so add them to components list
-    if [ "$AOMP_SKIP_FLANG" == 0 ] ; then
-      components="$components llvm-classic flang-classic pgmath flang flang_runtime"
-    fi
     components="$components hipcc hipamd hipify"
   fi
-  if [ "$AOMP_SKIP_FLANG_NEW" == 0 ] && [ "$AOMP_SKIP_FLANG" == 1 ] ; then
+  if [ "$AOMP_SKIP_FLANG_NEW" == 0 ] ; then
     # We can only build hipfort for flang
     components="$components hipfort "
   fi
@@ -133,13 +119,6 @@ else
   # roctracer, rocprofiler, rocm_smi_lib, and amdsmi should be found
   # in ROCM in /opt/rocm.  The ROCM build only needs these components:
   components="llvm_runtimes_standalone"
-  if [ "$AOMP_SKIP_FLANG" == 0 ] ; then
-    if [ "$SANITIZER" == 1 ] && [ -f "$AOMP/bin/flang-classic" ] ; then
-      components="$components pgmath flang flang_runtime"
-    else
-      components="$components llvm-classic flang-classic pgmath flang flang_runtime"
-    fi
-  fi
 fi
 echo "COMPONENTS:$components"
 
@@ -196,24 +175,17 @@ echo
 
 if [ "$AOMP_STANDALONE_BUILD" -eq 0 ]; then
   cd "$BUILD_DIR/build" || exit
-  classic_version=$(ls flang-classic)
-  classic_install_manifest=$classic_version/install_manifest.txt
   if [ "$SANITIZER" == 1 ]; then
-    install_manifest_orig=asan/install_manifest.txt
+    install_manifest=asan/install_manifest.txt
   else
-    install_manifest_orig=install_manifest.txt
+    install_manifest=install_manifest.txt
   fi
 
   # Clean file log
   rm -f "$BUILD_DIR/build/installed_files.txt"
 
   for directory in ./*/; do
     pushd "$directory" > /dev/null || exit
-    if [[ "$directory" =~ "flang-classic" ]]; then
-      install_manifest=$classic_install_manifest
-    else
-      install_manifest="$install_manifest_orig"
-    fi
     if [ -f "$install_manifest" ]; then
       cat "$install_manifest" >> "$BUILD_DIR/build/installed_files.txt"
       echo "" >> "$BUILD_DIR/build/installed_files.txt"

bin/build_fixups.sh

@@ -25,8 +25,6 @@ if [ "$AOMP_STANDALONE_BUILD" == 1 ] ; then
   $SUDO cp "$AOMP_SRC/LICENSE" "$AOMP/share/doc/aomp/LICENSE.apache2"
   echo $SUDO cp "$AOMP_REPOS/$AOMP_EXTRAS_REPO_NAME/LICENSE" "$AOMP/share/doc/aomp/LICENSE.mit"
   $SUDO cp "$AOMP_REPOS/$AOMP_EXTRAS_REPO_NAME/LICENSE" "$AOMP/share/doc/aomp/LICENSE.mit"
-  echo $SUDO cp "$AOMP_REPOS/$AOMP_FLANG_REPO_NAME/LICENSE.txt" "$AOMP/share/doc/aomp/LICENSE.flang"
-  $SUDO cp "$AOMP_REPOS/$AOMP_FLANG_REPO_NAME/LICENSE.txt" "$AOMP/share/doc/aomp/LICENSE.flang"
 fi
 
 echo Cleaning AOMP Directory...