[Backend Tester] Add QNN test flow to nightly CI

.ci/scripts/test_backend_linux.sh

@@ -18,13 +18,34 @@ eval "$(conda shell.bash hook)"
 CONDA_ENV=$(conda env list --json | jq -r ".envs | .[-1]")
 conda activate "${CONDA_ENV}"
 
-# Setup swiftshader and Vulkan SDK which are required to build the Vulkan delegate
-source .ci/scripts/setup-vulkan-linux-deps.sh
+export PYTHON_EXECUTABLE=python
 
 # CMake options to use, in addition to the defaults.
-EXTRA_BUILD_ARGS="-DEXECUTORCH_BUILD_VULKAN=ON"
+EXTRA_BUILD_ARGS=""
+
+if [[ "$FLOW" == *qualcomm* ]]; then
+    # Setup QNN sdk and deps - note that this is a bit hacky due to the nature of the 
+    # Qualcomm build. TODO (gjcomer) Clean this up once the QNN pybinding integration is
+    # cleaned up.
+    PYTHON_EXECUTABLE=python bash .ci/scripts/setup-linux.sh --build-tool cmake
+    PYTHON_EXECUTABLE=python bash .ci/scripts/setup-qnn-deps.sh
+    PYTHON_EXECUTABLE=python bash .ci/scripts/build-qnn-sdk.sh
+    QNN_X86_LIB_DIR=`realpath build-x86/lib/`
+    QNN_SDK_ROOT="/tmp/qnn/2.28.0.241029"
+    export LD_LIBRARY_PATH"=$QNN_X86_LIB_DIR:$QNN_SDK_ROOT/lib/x86_64-linux-clang/:${LD_LIBRARY_PATH:-}"
+
+    # TODO Get SDK root from install scripts
+    EXTRA_BUILD_ARGS+=" -DEXECUTORCH_BUILD_QNN=ON -DQNN_SDK_ROOT=$QNN_SDK_ROOT"
+fi
+
+if [[ "$FLOW" =~ *vulkan* ]]; then
+    # Setup swiftshader and Vulkan SDK which are required to build the Vulkan delegate
+    source .ci/scripts/setup-vulkan-linux-deps.sh
+
+    EXTRA_BUILD_ARGS+=" -DEXECUTORCH_BUILD_VULKAN=ON"
+fi
 
 # We need the runner to test the built library.
-PYTHON_EXECUTABLE=python CMAKE_ARGS="$EXTRA_BUILD_ARGS" .ci/scripts/setup-linux.sh --build-tool cmake --build-mode Release
+PYTHON_EXECUTABLE=python CMAKE_ARGS="$EXTRA_BUILD_ARGS" .ci/scripts/setup-linux.sh --build-tool cmake --build-mode Release --editable true
 
 python -m executorch.backends.test.suite.runner $SUITE --flow $FLOW --report "$ARTIFACT_DIR/test_results.csv"

.github/workflows/nightly.yml

@@ -42,12 +42,12 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        flow: [vulkan, xnnpack, xnnpack_static_int8_per_channel]
+        flow: [qualcomm, vulkan, xnnpack, xnnpack_static_int8_per_channel]
         suite: [models, operators]
     with:
       ref: ${{ github.event_name == 'pull_request' && github.event.pull_request.head.sha || github.sha }}
       runner: linux.4xlarge.memory
-      docker-image: ci-image:executorch-ubuntu-22.04-clang12
+      docker-image: ci-image:executorch-ubuntu-22.04-qnn-sdk
       submodules: recursive
       timeout: 120
       upload-artifact: test-report-${{ matrix.flow }}-${{ matrix.suite }}

backends/qualcomm/scripts/install_qnn_sdk.sh

@@ -9,7 +9,7 @@ source "${SCRIPT_DIR}/qnn_config.sh"
 # Function to install Android NDK (only if not already set)
 setup_android_ndk() {
     # Check if ANDROID_NDK_ROOT is already set and valid
-    if [ -n "${ANDROID_NDK_ROOT}" ] && [ -d "${ANDROID_NDK_ROOT}" ]; then
+    if [ -n "${ANDROID_NDK_ROOT:-}" ] && [ -d "${ANDROID_NDK_ROOT:-}" ]; then
         echo "Android NDK already set to ${ANDROID_NDK_ROOT} - skipping installation"
         return
     fi
@@ -41,7 +41,7 @@ verify_pkg_installed() {
 
 install_qnn() {
   # Check if QNN_SDK_ROOT is already set and valid
-  if [ -n "${QNN_SDK_ROOT}" ] && [ -d "${QNN_SDK_ROOT}" ]; then
+  if [ -n "${QNN_SDK_ROOT:-}" ] && [ -d "${QNN_SDK_ROOT:-}" ]; then
     echo "QNN SDK already set to ${QNN_SDK_ROOT} - skipping installation"
     return
   fi
@@ -141,9 +141,9 @@ setup_libcpp() {
   popd >/dev/null
 
   # Set environment variables
-  export CPLUS_INCLUDE_PATH="${INSTALL_DIR}/include:$CPLUS_INCLUDE_PATH"
-  export LD_LIBRARY_PATH="${INSTALL_DIR}/lib:$LD_LIBRARY_PATH"
-  export LIBRARY_PATH="${INSTALL_DIR}/lib:$LIBRARY_PATH"
+  export CPLUS_INCLUDE_PATH="${INSTALL_DIR}/include:${CPLUS_INCLUDE_PATH:-}"
+  export LD_LIBRARY_PATH="${INSTALL_DIR}/lib:${LD_LIBRARY_PATH:-}"
+  export LIBRARY_PATH="${INSTALL_DIR}/lib:${LIBRARY_PATH:-}"
 
   echo "libc++ installed to ${INSTALL_DIR}"
 }