diff --git a/.github/workflows/ios-arm64-gpu.yml b/.github/workflows/ios-arm64-gpu.yml
deleted file mode 100644
index 25f8cf4ad35..00000000000
--- a/.github/workflows/ios-arm64-gpu.yml
+++ /dev/null
@@ -1,133 +0,0 @@
-name: ios-arm64-gpu
-on:
-  push:
-    branches: [master]
-    paths:
-    - '.github/workflows/ios-arm64-gpu.yml'
-    - 'toolchains/ios.toolchain.cmake'
-    - 'CMakeLists.txt'
-    - 'cmake/**'
-    - 'src/*'
-    - 'src/layer/*'
-    - 'src/layer/arm/**'
-    - 'src/layer/vulkan/**'
-  pull_request:
-    branches: [master]
-    paths:
-    - '.github/workflows/ios-arm64-gpu.yml'
-    - 'toolchains/ios.toolchain.cmake'
-    - 'CMakeLists.txt'
-    - 'cmake/**'
-    - 'src/*'
-    - 'src/layer/*'
-    - 'src/layer/arm/**'
-    - 'src/layer/vulkan/**'
-concurrency:
-  group: ios-arm64-gpu-${{ github.ref }}
-  cancel-in-progress: true
-env:
-  DEVELOPER_DIR: /Applications/Xcode_13.4.1.app/Contents/Developer
-  IOS_DEPLOYMENT_TARGET: '9.0'
-  ENABLE_BITCODE: OFF
-  ENABLE_ARC: OFF
-  ENABLE_VISIBILITY: OFF
-permissions:
-  contents: read
-
-jobs:
-  ios-iphone-os-gpu:
-    runs-on: macos-12
-    steps:
-    - uses: actions/checkout@v4
-      with:
-        submodules: true
-
-    - name: cache-openmp
-      id: cache-openmp
-      uses: actions/cache@v4
-      with:
-        path: openmp-install
-        key: openmp-ios-install-20230504
-    - name: openmp
-      if: steps.cache-openmp.outputs.cache-hit != 'true'
-      run: |
-        wget https://github.com/llvm/llvm-project/releases/download/llvmorg-11.0.0/openmp-11.0.0.src.tar.xz
-        tar -xf openmp-11.0.0.src.tar.xz
-        cd openmp-11.0.0.src
-        sed -i'' -e '/.size __kmp_unnamed_critical_addr/d' runtime/src/z_Linux_asm.S
-        sed -i'' -e 's/__kmp_unnamed_critical_addr/___kmp_unnamed_critical_addr/g' runtime/src/z_Linux_asm.S
-    - name: openmp-build-armv7
-      if: steps.cache-openmp.outputs.cache-hit != 'true'
-      run: |
-        cd openmp-11.0.0.src
-        mkdir -p build-armv7 && cd build-armv7
-        cmake -DCMAKE_TOOLCHAIN_FILE=../../toolchains/ios.toolchain.cmake -DPLATFORM=OS -DARCHS="armv7" \
-            -DDEPLOYMENT_TARGET=$IOS_DEPLOYMENT_TARGET -DENABLE_BITCODE=$ENABLE_BITCODE -DENABLE_ARC=$ENABLE_ARC -DENABLE_VISIBILITY=$ENABLE_VISIBILITY \
-            -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=install \
-            -DPERL_EXECUTABLE=/usr/local/bin/perl \
-            -DLIBOMP_ENABLE_SHARED=OFF -DLIBOMP_OMPT_SUPPORT=OFF -DLIBOMP_USE_HWLOC=OFF ..
-        cmake --build . -j 3
-        cmake --build . --target install
-    - name: openmp-build-arm64
-      if: steps.cache-openmp.outputs.cache-hit != 'true'
-      run: |
-        cd openmp-11.0.0.src
-        mkdir -p build-arm64 && cd build-arm64
-        cmake -DCMAKE_TOOLCHAIN_FILE=../../toolchains/ios.toolchain.cmake -DPLATFORM=OS64 -DARCHS="arm64" \
-            -DDEPLOYMENT_TARGET=$IOS_DEPLOYMENT_TARGET -DENABLE_BITCODE=$ENABLE_BITCODE -DENABLE_ARC=$ENABLE_ARC -DENABLE_VISIBILITY=$ENABLE_VISIBILITY \
-            -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=install \
-            -DPERL_EXECUTABLE=/usr/local/bin/perl \
-            -DLIBOMP_ENABLE_SHARED=OFF -DLIBOMP_OMPT_SUPPORT=OFF -DLIBOMP_USE_HWLOC=OFF ..
-        cmake --build . -j 3
-        cmake --build . --target install
-    - name: openmp-build-arm64e
-      if: steps.cache-openmp.outputs.cache-hit != 'true'
-      run: |
-        cd openmp-11.0.0.src
-        mkdir -p build-arm64e && cd build-arm64e
-        cmake -DCMAKE_TOOLCHAIN_FILE=../../toolchains/ios.toolchain.cmake -DPLATFORM=OS64 -DARCHS="arm64e" \
-            -DDEPLOYMENT_TARGET=$IOS_DEPLOYMENT_TARGET -DENABLE_BITCODE=$ENABLE_BITCODE -DENABLE_ARC=$ENABLE_ARC -DENABLE_VISIBILITY=$ENABLE_VISIBILITY \
-            -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=install \
-            -DPERL_EXECUTABLE=/usr/local/bin/perl \
-            -DLIBOMP_ENABLE_SHARED=OFF -DLIBOMP_OMPT_SUPPORT=OFF -DLIBOMP_USE_HWLOC=OFF ..
-        cmake --build . -j 3
-        cmake --build . --target install
-    - name: openmp-merge-fat-library
-      if: steps.cache-openmp.outputs.cache-hit != 'true'
-      run: |
-        mkdir -p $GITHUB_WORKSPACE/openmp-install
-        cp -a openmp-11.0.0.src/build-arm64/install/include $GITHUB_WORKSPACE/openmp-install
-        mkdir -p $GITHUB_WORKSPACE/openmp-install/lib
-        lipo -create \
-            openmp-11.0.0.src/build-armv7/install/lib/libomp.a \
-            openmp-11.0.0.src/build-arm64/install/lib/libomp.a \
-            openmp-11.0.0.src/build-arm64e/install/lib/libomp.a \
-            -o $GITHUB_WORKSPACE/openmp-install/lib/libomp.a
-
-    - name: install-openmp
-      run: |
-        sudo cp $GITHUB_WORKSPACE/openmp-install/include/* $DEVELOPER_DIR/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS.sdk/usr/include
-        sudo cp $GITHUB_WORKSPACE/openmp-install/lib/libomp.a $DEVELOPER_DIR/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS.sdk/usr/lib
-
-    - name: build-arm64
-      run: |
-        mkdir build-arm64 && cd build-arm64
-        cmake -DCMAKE_TOOLCHAIN_FILE=../toolchains/ios.toolchain.cmake -DPLATFORM=OS64 -DARCHS="arm64" \
-            -DDEPLOYMENT_TARGET=$IOS_DEPLOYMENT_TARGET -DENABLE_BITCODE=$ENABLE_BITCODE -DENABLE_ARC=$ENABLE_ARC -DENABLE_VISIBILITY=$ENABLE_VISIBILITY \
-            -DOpenMP_C_FLAGS="-Xclang -fopenmp" -DOpenMP_CXX_FLAGS="-Xclang -fopenmp" \
-            -DOpenMP_C_LIB_NAMES="libomp" -DOpenMP_CXX_LIB_NAMES="libomp" \
-            -DOpenMP_libomp_LIBRARY="$DEVELOPER_DIR/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS.sdk/usr/lib/libomp.a" \
-            -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=install \
-            -DNCNN_VULKAN=ON -DNCNN_BUILD_BENCHMARK=OFF ..
-        cmake --build . -j 3
-    - name: build-arm64e
-      run: |
-        mkdir build-arm64e && cd build-arm64e
-        cmake -DCMAKE_TOOLCHAIN_FILE=../toolchains/ios.toolchain.cmake -DPLATFORM=OS64 -DARCHS="arm64e" \
-            -DDEPLOYMENT_TARGET=$IOS_DEPLOYMENT_TARGET -DENABLE_BITCODE=$ENABLE_BITCODE -DENABLE_ARC=$ENABLE_ARC -DENABLE_VISIBILITY=$ENABLE_VISIBILITY \
-            -DOpenMP_C_FLAGS="-Xclang -fopenmp" -DOpenMP_CXX_FLAGS="-Xclang -fopenmp" \
-            -DOpenMP_C_LIB_NAMES="libomp" -DOpenMP_CXX_LIB_NAMES="libomp" \
-            -DOpenMP_libomp_LIBRARY="$DEVELOPER_DIR/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS.sdk/usr/lib/libomp.a" \
-            -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=install \
-            -DNCNN_VULKAN=ON -DNCNN_BUILD_BENCHMARK=OFF ..
-        cmake --build . -j 3
diff --git a/.github/workflows/ios-cpu.yml b/.github/workflows/ios-cpu.yml
deleted file mode 100644
index 501eac3377d..00000000000
--- a/.github/workflows/ios-cpu.yml
+++ /dev/null
@@ -1,140 +0,0 @@
-name: ios-cpu
-on:
-  push:
-    branches: [master]
-    paths:
-    - '.github/workflows/ios-cpu.yml'
-    - 'toolchains/ios.toolchain.cmake'
-    - 'CMakeLists.txt'
-    - 'cmake/**'
-    - 'src/*'
-    - 'src/layer/*'
-    - 'src/layer/arm/**'
-  pull_request:
-    branches: [master]
-    paths:
-    - '.github/workflows/ios-cpu.yml'
-    - 'toolchains/ios.toolchain.cmake'
-    - 'CMakeLists.txt'
-    - 'cmake/**'
-    - 'src/*'
-    - 'src/layer/*'
-    - 'src/layer/arm/**'
-concurrency:
-  group: ios-cpu-${{ github.ref }}
-  cancel-in-progress: true
-env:
-  DEVELOPER_DIR: /Applications/Xcode_13.4.1.app/Contents/Developer
-  IOS_DEPLOYMENT_TARGET: '9.0'
-  ENABLE_BITCODE: OFF
-  ENABLE_ARC: OFF
-  ENABLE_VISIBILITY: OFF
-permissions:
-  contents: read
-
-jobs:
-  ios-iphone-os:
-    runs-on: macos-12
-    steps:
-    - uses: actions/checkout@v4
-
-    - name: cache-openmp
-      id: cache-openmp
-      uses: actions/cache@v4
-      with:
-        path: openmp-install
-        key: openmp-ios-install-20230504
-    - name: openmp
-      if: steps.cache-openmp.outputs.cache-hit != 'true'
-      run: |
-        wget https://github.com/llvm/llvm-project/releases/download/llvmorg-11.0.0/openmp-11.0.0.src.tar.xz
-        tar -xf openmp-11.0.0.src.tar.xz
-        cd openmp-11.0.0.src
-        sed -i'' -e '/.size __kmp_unnamed_critical_addr/d' runtime/src/z_Linux_asm.S
-        sed -i'' -e 's/__kmp_unnamed_critical_addr/___kmp_unnamed_critical_addr/g' runtime/src/z_Linux_asm.S
-    - name: openmp-build-armv7
-      if: steps.cache-openmp.outputs.cache-hit != 'true'
-      run: |
-        cd openmp-11.0.0.src
-        mkdir -p build-armv7 && cd build-armv7
-        cmake -DCMAKE_TOOLCHAIN_FILE=../../toolchains/ios.toolchain.cmake -DPLATFORM=OS -DARCHS="armv7" \
-            -DDEPLOYMENT_TARGET=$IOS_DEPLOYMENT_TARGET -DENABLE_BITCODE=$ENABLE_BITCODE -DENABLE_ARC=$ENABLE_ARC -DENABLE_VISIBILITY=$ENABLE_VISIBILITY \
-            -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=install \
-            -DPERL_EXECUTABLE=/usr/local/bin/perl \
-            -DLIBOMP_ENABLE_SHARED=OFF -DLIBOMP_OMPT_SUPPORT=OFF -DLIBOMP_USE_HWLOC=OFF ..
-        cmake --build . -j 3
-        cmake --build . --target install
-    - name: openmp-build-arm64
-      if: steps.cache-openmp.outputs.cache-hit != 'true'
-      run: |
-        cd openmp-11.0.0.src
-        mkdir -p build-arm64 && cd build-arm64
-        cmake -DCMAKE_TOOLCHAIN_FILE=../../toolchains/ios.toolchain.cmake -DPLATFORM=OS64 -DARCHS="arm64" \
-            -DDEPLOYMENT_TARGET=$IOS_DEPLOYMENT_TARGET -DENABLE_BITCODE=$ENABLE_BITCODE -DENABLE_ARC=$ENABLE_ARC -DENABLE_VISIBILITY=$ENABLE_VISIBILITY \
-            -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=install \
-            -DPERL_EXECUTABLE=/usr/local/bin/perl \
-            -DLIBOMP_ENABLE_SHARED=OFF -DLIBOMP_OMPT_SUPPORT=OFF -DLIBOMP_USE_HWLOC=OFF ..
-        cmake --build . -j 3
-        cmake --build . --target install
-    - name: openmp-build-arm64e
-      if: steps.cache-openmp.outputs.cache-hit != 'true'
-      run: |
-        cd openmp-11.0.0.src
-        mkdir -p build-arm64e && cd build-arm64e
-        cmake -DCMAKE_TOOLCHAIN_FILE=../../toolchains/ios.toolchain.cmake -DPLATFORM=OS64 -DARCHS="arm64e" \
-            -DDEPLOYMENT_TARGET=$IOS_DEPLOYMENT_TARGET -DENABLE_BITCODE=$ENABLE_BITCODE -DENABLE_ARC=$ENABLE_ARC -DENABLE_VISIBILITY=$ENABLE_VISIBILITY \
-            -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=install \
-            -DPERL_EXECUTABLE=/usr/local/bin/perl \
-            -DLIBOMP_ENABLE_SHARED=OFF -DLIBOMP_OMPT_SUPPORT=OFF -DLIBOMP_USE_HWLOC=OFF ..
-        cmake --build . -j 3
-        cmake --build . --target install
-    - name: openmp-merge-fat-library
-      if: steps.cache-openmp.outputs.cache-hit != 'true'
-      run: |
-        mkdir -p $GITHUB_WORKSPACE/openmp-install
-        cp -a openmp-11.0.0.src/build-arm64/install/include $GITHUB_WORKSPACE/openmp-install
-        mkdir -p $GITHUB_WORKSPACE/openmp-install/lib
-        lipo -create \
-            openmp-11.0.0.src/build-armv7/install/lib/libomp.a \
-            openmp-11.0.0.src/build-arm64/install/lib/libomp.a \
-            openmp-11.0.0.src/build-arm64e/install/lib/libomp.a \
-            -o $GITHUB_WORKSPACE/openmp-install/lib/libomp.a
-
-    - name: install-openmp
-      run: |
-        sudo cp $GITHUB_WORKSPACE/openmp-install/include/* $DEVELOPER_DIR/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS.sdk/usr/include
-        sudo cp $GITHUB_WORKSPACE/openmp-install/lib/libomp.a $DEVELOPER_DIR/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS.sdk/usr/lib
-
-    - name: build-armv7
-      run: |
-        mkdir build-armv7 && cd build-armv7
-        cmake -DCMAKE_TOOLCHAIN_FILE=../toolchains/ios.toolchain.cmake -DPLATFORM=OS -DARCHS="armv7" \
-            -DDEPLOYMENT_TARGET=$IOS_DEPLOYMENT_TARGET -DENABLE_BITCODE=$ENABLE_BITCODE -DENABLE_ARC=$ENABLE_ARC -DENABLE_VISIBILITY=$ENABLE_VISIBILITY \
-            -DOpenMP_C_FLAGS="-Xclang -fopenmp" -DOpenMP_CXX_FLAGS="-Xclang -fopenmp" \
-            -DOpenMP_C_LIB_NAMES="libomp" -DOpenMP_CXX_LIB_NAMES="libomp" \
-            -DOpenMP_libomp_LIBRARY="$DEVELOPER_DIR/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS.sdk/usr/lib/libomp.a" \
-            -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=install \
-            ..
-        cmake --build . -j 3
-    - name: build-arm64
-      run: |
-        mkdir build-arm64 && cd build-arm64
-        cmake -DCMAKE_TOOLCHAIN_FILE=../toolchains/ios.toolchain.cmake -DPLATFORM=OS64 -DARCHS="arm64" \
-            -DDEPLOYMENT_TARGET=$IOS_DEPLOYMENT_TARGET -DENABLE_BITCODE=$ENABLE_BITCODE -DENABLE_ARC=$ENABLE_ARC -DENABLE_VISIBILITY=$ENABLE_VISIBILITY \
-            -DOpenMP_C_FLAGS="-Xclang -fopenmp" -DOpenMP_CXX_FLAGS="-Xclang -fopenmp" \
-            -DOpenMP_C_LIB_NAMES="libomp" -DOpenMP_CXX_LIB_NAMES="libomp" \
-            -DOpenMP_libomp_LIBRARY="$DEVELOPER_DIR/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS.sdk/usr/lib/libomp.a" \
-            -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=install \
-            ..
-        cmake --build . -j 3
-    - name: build-arm64e
-      run: |
-        mkdir build-arm64e && cd build-arm64e
-        cmake -DCMAKE_TOOLCHAIN_FILE=../toolchains/ios.toolchain.cmake -DPLATFORM=OS64 -DARCHS="arm64e" \
-            -DDEPLOYMENT_TARGET=$IOS_DEPLOYMENT_TARGET -DENABLE_BITCODE=$ENABLE_BITCODE -DENABLE_ARC=$ENABLE_ARC -DENABLE_VISIBILITY=$ENABLE_VISIBILITY \
-            -DOpenMP_C_FLAGS="-Xclang -fopenmp" -DOpenMP_CXX_FLAGS="-Xclang -fopenmp" \
-            -DOpenMP_C_LIB_NAMES="libomp" -DOpenMP_CXX_LIB_NAMES="libomp" \
-            -DOpenMP_libomp_LIBRARY="$DEVELOPER_DIR/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS.sdk/usr/lib/libomp.a" \
-            -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=install \
-            ..
-        cmake --build . -j 3
diff --git a/.github/workflows/ios-simulator-gpu.yml b/.github/workflows/ios-simulator-gpu.yml
deleted file mode 100644
index 4babdb4e532..00000000000
--- a/.github/workflows/ios-simulator-gpu.yml
+++ /dev/null
@@ -1,133 +0,0 @@
-name: ios-simulator-gpu
-on:
-  push:
-    branches: [master]
-    paths:
-    - '.github/workflows/ios-simulator-gpu.yml'
-    - 'toolchains/ios.toolchain.cmake'
-    - 'CMakeLists.txt'
-    - 'cmake/**'
-    - 'src/*'
-    - 'src/layer/*'
-    - 'src/layer/x86/**'
-    - 'src/layer/arm/**'
-  pull_request:
-    branches: [master]
-    paths:
-    - '.github/workflows/ios-simulator-gpu.yml'
-    - 'toolchains/ios.toolchain.cmake'
-    - 'CMakeLists.txt'
-    - 'cmake/**'
-    - 'src/*'
-    - 'src/layer/*'
-    - 'src/layer/x86/**'
-    - 'src/layer/arm/**'
-concurrency:
-  group: ios-simulator-gpu-${{ github.ref }}
-  cancel-in-progress: true
-env:
-  DEVELOPER_DIR: /Applications/Xcode_13.4.1.app/Contents/Developer
-  IOS_DEPLOYMENT_TARGET: '9.0'
-  ENABLE_BITCODE: OFF
-  ENABLE_ARC: OFF
-  ENABLE_VISIBILITY: OFF
-permissions:
-  contents: read
-
-jobs:
-  ios-iphone-simulator-gpu:
-    runs-on: macos-12
-    steps:
-    - uses: actions/checkout@v4
-      with:
-        submodules: true
-
-    - name: cache-openmp
-      id: cache-openmp
-      uses: actions/cache@v4
-      with:
-        path: openmp-install
-        key: openmp-ios-simulator-install-20230504
-    - name: openmp
-      if: steps.cache-openmp.outputs.cache-hit != 'true'
-      run: |
-        wget https://github.com/llvm/llvm-project/releases/download/llvmorg-11.0.0/openmp-11.0.0.src.tar.xz
-        tar -xf openmp-11.0.0.src.tar.xz
-        cd openmp-11.0.0.src
-        sed -i'' -e '/.size __kmp_unnamed_critical_addr/d' runtime/src/z_Linux_asm.S
-        sed -i'' -e 's/__kmp_unnamed_critical_addr/___kmp_unnamed_critical_addr/g' runtime/src/z_Linux_asm.S
-    - name: openmp-build-i386
-      if: steps.cache-openmp.outputs.cache-hit != 'true'
-      run: |
-        cd openmp-11.0.0.src
-        mkdir -p build-i386 && cd build-i386
-        cmake -DCMAKE_TOOLCHAIN_FILE=../../toolchains/ios.toolchain.cmake -DPLATFORM=SIMULATOR -DARCHS="i386" \
-            -DDEPLOYMENT_TARGET=$IOS_DEPLOYMENT_TARGET -DENABLE_BITCODE=$ENABLE_BITCODE -DENABLE_ARC=$ENABLE_ARC -DENABLE_VISIBILITY=$ENABLE_VISIBILITY \
-            -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=install \
-            -DPERL_EXECUTABLE=/usr/local/bin/perl \
-            -DLIBOMP_ENABLE_SHARED=OFF -DLIBOMP_OMPT_SUPPORT=OFF -DLIBOMP_USE_HWLOC=OFF ..
-        cmake --build . -j 3
-        cmake --build . --target install
-    - name: openmp-build-x86_64
-      if: steps.cache-openmp.outputs.cache-hit != 'true'
-      run: |
-        cd openmp-11.0.0.src
-        mkdir -p build-x86_64 && cd build-x86_64
-        cmake -DCMAKE_TOOLCHAIN_FILE=../../toolchains/ios.toolchain.cmake -DPLATFORM=SIMULATOR64 -DARCHS="x86_64" \
-            -DDEPLOYMENT_TARGET=$IOS_DEPLOYMENT_TARGET -DENABLE_BITCODE=$ENABLE_BITCODE -DENABLE_ARC=$ENABLE_ARC -DENABLE_VISIBILITY=$ENABLE_VISIBILITY \
-            -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=install \
-            -DPERL_EXECUTABLE=/usr/local/bin/perl \
-            -DLIBOMP_ENABLE_SHARED=OFF -DLIBOMP_OMPT_SUPPORT=OFF -DLIBOMP_USE_HWLOC=OFF ..
-        cmake --build . -j 3
-        cmake --build . --target install
-    - name: openmp-build-arm64
-      if: steps.cache-openmp.outputs.cache-hit != 'true'
-      run: |
-        cd openmp-11.0.0.src
-        mkdir -p build-arm64 && cd build-arm64
-        cmake -DCMAKE_TOOLCHAIN_FILE=../../toolchains/ios.toolchain.cmake -DPLATFORM=SIMULATORARM64 -DARCHS="arm64" \
-            -DDEPLOYMENT_TARGET=$IOS_DEPLOYMENT_TARGET -DENABLE_BITCODE=$ENABLE_BITCODE -DENABLE_ARC=$ENABLE_ARC -DENABLE_VISIBILITY=$ENABLE_VISIBILITY \
-            -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=install \
-            -DPERL_EXECUTABLE=/usr/local/bin/perl \
-            -DLIBOMP_ENABLE_SHARED=OFF -DLIBOMP_OMPT_SUPPORT=OFF -DLIBOMP_USE_HWLOC=OFF ..
-        cmake --build . -j 3
-        cmake --build . --target install
-    - name: openmp-merge-fat-library
-      if: steps.cache-openmp.outputs.cache-hit != 'true'
-      run: |
-        mkdir -p $GITHUB_WORKSPACE/openmp-install
-        cp -a openmp-11.0.0.src/build-x86_64/install/include $GITHUB_WORKSPACE/openmp-install
-        mkdir -p $GITHUB_WORKSPACE/openmp-install/lib
-        lipo -create \
-            openmp-11.0.0.src/build-i386/install/lib/libomp.a \
-            openmp-11.0.0.src/build-x86_64/install/lib/libomp.a \
-            openmp-11.0.0.src/build-arm64/install/lib/libomp.a \
-            -o $GITHUB_WORKSPACE/openmp-install/lib/libomp.a
-
-    - name: openmp-install
-      run: |
-        sudo cp $GITHUB_WORKSPACE/openmp-install/include/* $DEVELOPER_DIR/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator.sdk/usr/include
-        sudo cp $GITHUB_WORKSPACE/openmp-install/lib/libomp.a $DEVELOPER_DIR/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator.sdk/usr/lib
-
-    - name: build-x86_64
-      run: |
-        mkdir build-x86_64 && cd build-x86_64
-        cmake -DCMAKE_TOOLCHAIN_FILE=../toolchains/ios.toolchain.cmake -DPLATFORM=SIMULATOR64 -DARCHS="x86_64" \
-            -DDEPLOYMENT_TARGET=$IOS_DEPLOYMENT_TARGET -DENABLE_BITCODE=$ENABLE_BITCODE -DENABLE_ARC=$ENABLE_ARC -DENABLE_VISIBILITY=$ENABLE_VISIBILITY \
-            -DOpenMP_C_FLAGS="-Xclang -fopenmp" -DOpenMP_CXX_FLAGS="-Xclang -fopenmp" \
-            -DOpenMP_C_LIB_NAMES="libomp" -DOpenMP_CXX_LIB_NAMES="libomp" \
-            -DOpenMP_libomp_LIBRARY="$DEVELOPER_DIR/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator.sdk/usr/lib/libomp.a" \
-            -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=install \
-            -DNCNN_VULKAN=ON -DNCNN_BUILD_BENCHMARK=OFF ..
-        cmake --build . -j 3
-    - name: build-arm64
-      run: |
-        mkdir build-arm64 && cd build-arm64
-        cmake -DCMAKE_TOOLCHAIN_FILE=../toolchains/ios.toolchain.cmake -DPLATFORM=SIMULATORARM64 -DARCHS="arm64" \
-            -DDEPLOYMENT_TARGET=$IOS_DEPLOYMENT_TARGET -DENABLE_BITCODE=$ENABLE_BITCODE -DENABLE_ARC=$ENABLE_ARC -DENABLE_VISIBILITY=$ENABLE_VISIBILITY \
-            -DOpenMP_C_FLAGS="-Xclang -fopenmp" -DOpenMP_CXX_FLAGS="-Xclang -fopenmp" \
-            -DOpenMP_C_LIB_NAMES="libomp" -DOpenMP_CXX_LIB_NAMES="libomp" \
-            -DOpenMP_libomp_LIBRARY="$DEVELOPER_DIR/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator.sdk/usr/lib/libomp.a" \
-            -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=install \
-            -DNCNN_VULKAN=ON -DNCNN_BUILD_BENCHMARK=OFF ..
-        cmake --build . -j 3
diff --git a/.github/workflows/ios-simulator.yml b/.github/workflows/ios-simulator.yml
deleted file mode 100644
index 1d550638313..00000000000
--- a/.github/workflows/ios-simulator.yml
+++ /dev/null
@@ -1,142 +0,0 @@
-name: ios-simulator
-on:
-  push:
-    branches: [master]
-    paths:
-    - '.github/workflows/ios-simulator.yml'
-    - 'toolchains/ios.toolchain.cmake'
-    - 'CMakeLists.txt'
-    - 'cmake/**'
-    - 'src/*'
-    - 'src/layer/*'
-    - 'src/layer/x86/**'
-    - 'src/layer/arm/**'
-  pull_request:
-    branches: [master]
-    paths:
-    - '.github/workflows/ios-simulator.yml'
-    - 'toolchains/ios.toolchain.cmake'
-    - 'CMakeLists.txt'
-    - 'cmake/**'
-    - 'src/*'
-    - 'src/layer/*'
-    - 'src/layer/x86/**'
-    - 'src/layer/arm/**'
-concurrency:
-  group: ios-simulator-${{ github.ref }}
-  cancel-in-progress: true
-env:
-  DEVELOPER_DIR: /Applications/Xcode_13.4.1.app/Contents/Developer
-  IOS_DEPLOYMENT_TARGET: '9.0'
-  ENABLE_BITCODE: OFF
-  ENABLE_ARC: OFF
-  ENABLE_VISIBILITY: OFF
-permissions:
-  contents: read
-
-jobs:
-  ios-iphone-simulator:
-    runs-on: macos-12
-    steps:
-    - uses: actions/checkout@v4
-
-    - name: cache-openmp
-      id: cache-openmp
-      uses: actions/cache@v4
-      with:
-        path: openmp-install
-        key: openmp-ios-simulator-install-20230504
-    - name: openmp
-      if: steps.cache-openmp.outputs.cache-hit != 'true'
-      run: |
-        wget https://github.com/llvm/llvm-project/releases/download/llvmorg-11.0.0/openmp-11.0.0.src.tar.xz
-        tar -xf openmp-11.0.0.src.tar.xz
-        cd openmp-11.0.0.src
-        sed -i'' -e '/.size __kmp_unnamed_critical_addr/d' runtime/src/z_Linux_asm.S
-        sed -i'' -e 's/__kmp_unnamed_critical_addr/___kmp_unnamed_critical_addr/g' runtime/src/z_Linux_asm.S
-    - name: openmp-build-i386
-      if: steps.cache-openmp.outputs.cache-hit != 'true'
-      run: |
-        cd openmp-11.0.0.src
-        mkdir -p build-i386 && cd build-i386
-        cmake -DCMAKE_TOOLCHAIN_FILE=../../toolchains/ios.toolchain.cmake -DPLATFORM=SIMULATOR -DARCHS="i386" \
-            -DDEPLOYMENT_TARGET=$IOS_DEPLOYMENT_TARGET -DENABLE_BITCODE=$ENABLE_BITCODE -DENABLE_ARC=$ENABLE_ARC -DENABLE_VISIBILITY=$ENABLE_VISIBILITY \
-            -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=install \
-            -DPERL_EXECUTABLE=/usr/local/bin/perl \
-            -DLIBOMP_ENABLE_SHARED=OFF -DLIBOMP_OMPT_SUPPORT=OFF -DLIBOMP_USE_HWLOC=OFF ..
-        cmake --build . -j 3
-        cmake --build . --target install
-    - name: openmp-build-x86_64
-      if: steps.cache-openmp.outputs.cache-hit != 'true'
-      run: |
-        cd openmp-11.0.0.src
-        mkdir -p build-x86_64 && cd build-x86_64
-        cmake -DCMAKE_TOOLCHAIN_FILE=../../toolchains/ios.toolchain.cmake -DPLATFORM=SIMULATOR64 -DARCHS="x86_64" \
-            -DDEPLOYMENT_TARGET=$IOS_DEPLOYMENT_TARGET -DENABLE_BITCODE=$ENABLE_BITCODE -DENABLE_ARC=$ENABLE_ARC -DENABLE_VISIBILITY=$ENABLE_VISIBILITY \
-            -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=install \
-            -DPERL_EXECUTABLE=/usr/local/bin/perl \
-            -DLIBOMP_ENABLE_SHARED=OFF -DLIBOMP_OMPT_SUPPORT=OFF -DLIBOMP_USE_HWLOC=OFF ..
-        cmake --build . -j 3
-        cmake --build . --target install
-    - name: openmp-build-arm64
-      if: steps.cache-openmp.outputs.cache-hit != 'true'
-      run: |
-        cd openmp-11.0.0.src
-        mkdir -p build-arm64 && cd build-arm64
-        cmake -DCMAKE_TOOLCHAIN_FILE=../../toolchains/ios.toolchain.cmake -DPLATFORM=SIMULATORARM64 -DARCHS="arm64" \
-            -DDEPLOYMENT_TARGET=$IOS_DEPLOYMENT_TARGET -DENABLE_BITCODE=$ENABLE_BITCODE -DENABLE_ARC=$ENABLE_ARC -DENABLE_VISIBILITY=$ENABLE_VISIBILITY \
-            -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=install \
-            -DPERL_EXECUTABLE=/usr/local/bin/perl \
-            -DLIBOMP_ENABLE_SHARED=OFF -DLIBOMP_OMPT_SUPPORT=OFF -DLIBOMP_USE_HWLOC=OFF ..
-        cmake --build . -j 3
-        cmake --build . --target install
-    - name: openmp-merge-fat-library
-      if: steps.cache-openmp.outputs.cache-hit != 'true'
-      run: |
-        mkdir -p $GITHUB_WORKSPACE/openmp-install
-        cp -a openmp-11.0.0.src/build-x86_64/install/include $GITHUB_WORKSPACE/openmp-install
-        mkdir -p $GITHUB_WORKSPACE/openmp-install/lib
-        lipo -create \
-            openmp-11.0.0.src/build-i386/install/lib/libomp.a \
-            openmp-11.0.0.src/build-x86_64/install/lib/libomp.a \
-            openmp-11.0.0.src/build-arm64/install/lib/libomp.a \
-            -o $GITHUB_WORKSPACE/openmp-install/lib/libomp.a
-
-    - name: openmp-install
-      run: |
-        sudo cp $GITHUB_WORKSPACE/openmp-install/include/* $DEVELOPER_DIR/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator.sdk/usr/include
-        sudo cp $GITHUB_WORKSPACE/openmp-install/lib/libomp.a $DEVELOPER_DIR/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator.sdk/usr/lib
-
-    - name: build-i386
-      run: |
-        mkdir build-i386 && cd build-i386
-        cmake -DCMAKE_TOOLCHAIN_FILE=../toolchains/ios.toolchain.cmake -DPLATFORM=SIMULATOR -DARCHS="i386" \
-            -DDEPLOYMENT_TARGET=$IOS_DEPLOYMENT_TARGET -DENABLE_BITCODE=$ENABLE_BITCODE -DENABLE_ARC=$ENABLE_ARC -DENABLE_VISIBILITY=$ENABLE_VISIBILITY \
-            -DOpenMP_C_FLAGS="-Xclang -fopenmp" -DOpenMP_CXX_FLAGS="-Xclang -fopenmp" \
-            -DOpenMP_C_LIB_NAMES="libomp" -DOpenMP_CXX_LIB_NAMES="libomp" \
-            -DOpenMP_libomp_LIBRARY="$DEVELOPER_DIR/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator.sdk/usr/lib/libomp.a" \
-            -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=install \
-            ..
-        cmake --build . -j 3
-    - name: build-x86_64
-      run: |
-        mkdir build-x86_64 && cd build-x86_64
-        cmake -DCMAKE_TOOLCHAIN_FILE=../toolchains/ios.toolchain.cmake -DPLATFORM=SIMULATOR64 -DARCHS="x86_64" \
-            -DDEPLOYMENT_TARGET=$IOS_DEPLOYMENT_TARGET -DENABLE_BITCODE=$ENABLE_BITCODE -DENABLE_ARC=$ENABLE_ARC -DENABLE_VISIBILITY=$ENABLE_VISIBILITY \
-            -DOpenMP_C_FLAGS="-Xclang -fopenmp" -DOpenMP_CXX_FLAGS="-Xclang -fopenmp" \
-            -DOpenMP_C_LIB_NAMES="libomp" -DOpenMP_CXX_LIB_NAMES="libomp" \
-            -DOpenMP_libomp_LIBRARY="$DEVELOPER_DIR/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator.sdk/usr/lib/libomp.a" \
-            -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=install \
-            ..
-        cmake --build . -j 3
-    - name: build-arm64
-      run: |
-        mkdir build-arm64 && cd build-arm64
-        cmake -DCMAKE_TOOLCHAIN_FILE=../toolchains/ios.toolchain.cmake -DPLATFORM=SIMULATORARM64 -DARCHS="arm64" \
-            -DDEPLOYMENT_TARGET=$IOS_DEPLOYMENT_TARGET -DENABLE_BITCODE=$ENABLE_BITCODE -DENABLE_ARC=$ENABLE_ARC -DENABLE_VISIBILITY=$ENABLE_VISIBILITY \
-            -DOpenMP_C_FLAGS="-Xclang -fopenmp" -DOpenMP_CXX_FLAGS="-Xclang -fopenmp" \
-            -DOpenMP_C_LIB_NAMES="libomp" -DOpenMP_CXX_LIB_NAMES="libomp" \
-            -DOpenMP_libomp_LIBRARY="$DEVELOPER_DIR/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator.sdk/usr/lib/libomp.a" \
-            -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=install \
-            ..
-        cmake --build . -j 3
diff --git a/.github/workflows/ios.yml b/.github/workflows/ios.yml
new file mode 100644
index 00000000000..1908657eb80
--- /dev/null
+++ b/.github/workflows/ios.yml
@@ -0,0 +1,167 @@
+name: ios
+on:
+  push:
+    branches: [master]
+    paths:
+    - '.github/workflows/ios.yml'
+    - 'toolchains/ios.toolchain.cmake'
+    - 'CMakeLists.txt'
+    - 'cmake/**'
+    - 'src/*'
+    - 'src/layer/*'
+    - 'src/layer/arm/**'
+    - 'src/layer/x86/**'
+    - 'src/layer/vulkan/**'
+  pull_request:
+    branches: [master]
+    paths:
+    - '.github/workflows/ios.yml'
+    - 'toolchains/ios.toolchain.cmake'
+    - 'CMakeLists.txt'
+    - 'cmake/**'
+    - 'src/*'
+    - 'src/layer/*'
+    - 'src/layer/arm/**'
+    - 'src/layer/x86/**'
+    - 'src/layer/vulkan/**'
+concurrency:
+  group: ios-${{ github.ref }}
+  cancel-in-progress: true
+env:
+  DEVELOPER_DIR: /Applications/Xcode_15.2.app/Contents/Developer
+  IOS_DEPLOYMENT_TARGET: '13.0'
+  ENABLE_BITCODE: OFF
+  ENABLE_ARC: OFF
+  ENABLE_VISIBILITY: OFF
+permissions:
+  contents: read
+
+jobs:
+  build:
+    runs-on: macos-13
+    env:
+      OPENMP_VERSION: '18.1.2'
+      OPENMP_CMAKE_OPTIONS: |
+        -DCMAKE_TOOLCHAIN_FILE=../../toolchains/ios.toolchain.cmake \
+        -DDEPLOYMENT_TARGET=$IOS_DEPLOYMENT_TARGET \
+        -DENABLE_BITCODE=$ENABLE_BITCODE \
+        -DENABLE_ARC=$ENABLE_ARC \
+        -DENABLE_VISIBILITY=$ENABLE_VISIBILITY \
+        -DCMAKE_INSTALL_PREFIX=install \
+        -DCMAKE_BUILD_TYPE=Release \
+        -DPERL_EXECUTABLE=/usr/local/bin/perl \
+        -DLIBOMP_ENABLE_SHARED=OFF \
+        -DLIBOMP_OMPT_SUPPORT=OFF \
+        -DLIBOMP_USE_HWLOC=OFF \
+
+      MOLTENVK_VERSION: 'v1.2.8'
+      NCNN_CMAKE_OPTIONS: |
+        -DCMAKE_TOOLCHAIN_FILE=../toolchains/ios.toolchain.cmake \
+        -DDEPLOYMENT_TARGET=$IOS_DEPLOYMENT_TARGET \
+        -DENABLE_BITCODE=$ENABLE_BITCODE \
+        -DENABLE_ARC=$ENABLE_ARC \
+        -DENABLE_VISIBILITY=$ENABLE_VISIBILITY \
+        -DCMAKE_INSTALL_PREFIX=install \
+        -DCMAKE_BUILD_TYPE=Release \
+        -DOpenMP_C_FLAGS="-Xclang -fopenmp" -DOpenMP_CXX_FLAGS="-Xclang -fopenmp" \
+        -DOpenMP_C_LIB_NAMES="libomp" -DOpenMP_CXX_LIB_NAMES="libomp" \
+        -DOpenMP_libomp_LIBRARY="libomp.a" \
+        -DNCNN_VULKAN=ON \
+
+    steps:
+    - uses: actions/checkout@v4
+      with:
+        submodules: true
+
+    - name: cache-openmp
+      id: cache-openmp
+      uses: actions/cache@v4
+      with:
+        path: openmp-install
+        key: openmp-ios-install-20240403
+    - name: openmp
+      if: steps.cache-openmp.outputs.cache-hit != 'true'
+      run: |
+        wget https://github.com/llvm/llvm-project/releases/download/llvmorg-${{ env.OPENMP_VERSION }}/cmake-${{ env.OPENMP_VERSION }}.src.tar.xz
+        tar -xf cmake-${{ env.OPENMP_VERSION }}.src.tar.xz
+        wget https://github.com/llvm/llvm-project/releases/download/llvmorg-${{ env.OPENMP_VERSION }}/openmp-${{ env.OPENMP_VERSION }}.src.tar.xz
+        tar -xf openmp-${{ env.OPENMP_VERSION }}.src.tar.xz
+        mv cmake-${{ env.OPENMP_VERSION }}.src/Modules/* openmp-${{ env.OPENMP_VERSION }}.src/cmake/
+        cd openmp-${{ env.OPENMP_VERSION }}.src
+        wget https://github.com/nihui/llvm-project/commit/ef8c35bcf5d9cfdb0764ffde6a63c04ec715bc37.patch
+        patch -p2 -i ef8c35bcf5d9cfdb0764ffde6a63c04ec715bc37.patch
+        wget https://github.com/nihui/llvm-project/commit/5c12711f9a21f41bea70566bf15a4026804d6b20.patch
+        patch -p2 -i 5c12711f9a21f41bea70566bf15a4026804d6b20.patch
+    - name: openmp-arm64
+      if: steps.cache-openmp.outputs.cache-hit != 'true'
+      run: |
+        cd openmp-${{ env.OPENMP_VERSION }}.src
+        mkdir -p build-arm64 && cd build-arm64
+        cmake ${{ env.OPENMP_CMAKE_OPTIONS }} -DPLATFORM=OS64 -DARCHS="arm64" ..
+        cmake --build . -j 4
+        cmake --build . --target install
+    - name: openmp-simulator-x86_64
+      if: steps.cache-openmp.outputs.cache-hit != 'true'
+      run: |
+        cd openmp-${{ env.OPENMP_VERSION }}.src
+        mkdir -p build-simulator-x86_64 && cd build-simulator-x86_64
+        cmake ${{ env.OPENMP_CMAKE_OPTIONS }} -DPLATFORM=SIMULATOR64 -DARCHS="x86_64" ..
+        cmake --build . -j 4
+        cmake --build . --target install
+    - name: openmp-simulator-arm64
+      if: steps.cache-openmp.outputs.cache-hit != 'true'
+      run: |
+        cd openmp-${{ env.OPENMP_VERSION }}.src
+        mkdir -p build-simulator-arm64 && cd build-simulator-arm64
+        cmake ${{ env.OPENMP_CMAKE_OPTIONS }} -DPLATFORM=SIMULATORARM64 -DARCHS="arm64" ..
+        cmake --build . -j 4
+        cmake --build . --target install
+    - name: openmp-merge-fat-library
+      if: steps.cache-openmp.outputs.cache-hit != 'true'
+      run: |
+        mkdir -p $GITHUB_WORKSPACE/openmp-install
+        mkdir -p $GITHUB_WORKSPACE/openmp-install/ios
+        mkdir -p $GITHUB_WORKSPACE/openmp-install/ios-simulator
+
+        cp -a openmp-${{ env.OPENMP_VERSION }}.src/build-arm64/install/include $GITHUB_WORKSPACE/openmp-install/ios
+        mkdir -p $GITHUB_WORKSPACE/openmp-install/ios/lib
+        cp openmp-${{ env.OPENMP_VERSION }}.src/build-arm64/install/lib/libomp.a $GITHUB_WORKSPACE/openmp-install/ios/lib/libomp.a
+
+        cp -a openmp-${{ env.OPENMP_VERSION }}.src/build-simulator-x86_64/install/include $GITHUB_WORKSPACE/openmp-install/ios-simulator
+        mkdir -p $GITHUB_WORKSPACE/openmp-install/ios-simulator/lib
+        lipo -create \
+            openmp-${{ env.OPENMP_VERSION }}.src/build-simulator-x86_64/install/lib/libomp.a \
+            openmp-${{ env.OPENMP_VERSION }}.src/build-simulator-arm64/install/lib/libomp.a \
+            -o $GITHUB_WORKSPACE/openmp-install/ios-simulator/lib/libomp.a
+
+    - name: install-openmp
+      run: |
+        sudo cp $GITHUB_WORKSPACE/openmp-install/ios/include/* $DEVELOPER_DIR/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS.sdk/usr/include
+        sudo cp $GITHUB_WORKSPACE/openmp-install/ios/lib/libomp.a $DEVELOPER_DIR/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS.sdk/usr/lib
+
+        sudo cp $GITHUB_WORKSPACE/openmp-install/ios-simulator/include/* $DEVELOPER_DIR/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator.sdk/usr/include
+        sudo cp $GITHUB_WORKSPACE/openmp-install/ios-simulator/lib/libomp.a $DEVELOPER_DIR/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator.sdk/usr/lib
+
+    - name: moltenvk
+      run: |
+        wget -q https://github.com/KhronosGroup/MoltenVK/releases/download/${{ env.MOLTENVK_VERSION }}/MoltenVK-all.tar
+        tar -xf MoltenVK-all.tar
+
+    - name: arm64
+      run: |
+        mkdir build-arm64 && cd build-arm64
+        cmake ${{ env.NCNN_CMAKE_OPTIONS }} -DPLATFORM=OS64 -DARCHS="arm64" \
+            -DVulkan_LIBRARY=$GITHUB_WORKSPACE/MoltenVK/MoltenVK/static/MoltenVK.xcframework/ios-arm64/libMoltenVK.a ..
+        cmake --build . -j 4
+    - name: simulator-x86_64
+      run: |
+        mkdir build-simulator-x86_64 && cd build-simulator-x86_64
+        cmake ${{ env.NCNN_CMAKE_OPTIONS }} -DPLATFORM=SIMULATOR64 -DARCHS="x86_64" \
+            -DVulkan_LIBRARY=$GITHUB_WORKSPACE/MoltenVK/MoltenVK/static/MoltenVK.xcframework/ios-arm64_x86_64-simulator/libMoltenVK.a ..
+        cmake --build . -j 4
+    - name: simulator-arm64
+      run: |
+        mkdir build-simulator-arm64 && cd build-simulator-arm64
+        cmake ${{ env.NCNN_CMAKE_OPTIONS }} -DPLATFORM=SIMULATORARM64 -DARCHS="arm64" \
+            -DVulkan_LIBRARY=$GITHUB_WORKSPACE/MoltenVK/MoltenVK/static/MoltenVK.xcframework/ios-arm64_x86_64-simulator/libMoltenVK.a ..
+        cmake --build . -j 4
diff --git a/.github/workflows/mac-catalyst.yml b/.github/workflows/mac-catalyst.yml
index 4dcdb06a6cd..60bffcc75f6 100644
--- a/.github/workflows/mac-catalyst.yml
+++ b/.github/workflows/mac-catalyst.yml
@@ -4,6 +4,7 @@ on:
     branches: [master]
     paths:
     - '.github/workflows/mac-catalyst.yml'
+    - 'toolchains/ios.toolchain.cmake'
     - 'CMakeLists.txt'
     - 'cmake/**'
     - 'src/*'
@@ -15,6 +16,7 @@ on:
     branches: [master]
     paths:
     - '.github/workflows/mac-catalyst.yml'
+    - 'toolchains/ios.toolchain.cmake'
     - 'CMakeLists.txt'
     - 'cmake/**'
     - 'src/*'
diff --git a/.github/workflows/macos-arm64-cpu.yml b/.github/workflows/macos-arm64-cpu.yml
deleted file mode 100644
index 09351c2f08d..00000000000
--- a/.github/workflows/macos-arm64-cpu.yml
+++ /dev/null
@@ -1,116 +0,0 @@
-name: macos-arm64-cpu
-on:
-  push:
-    branches: [master]
-    paths:
-    - '.github/workflows/macos-arm64-cpu.yml'
-    - 'CMakeLists.txt'
-    - 'cmake/**'
-    - 'src/*'
-    - 'src/layer/*'
-    - 'src/layer/arm/**'
-  pull_request:
-    branches: [master]
-    paths:
-    - '.github/workflows/macos-arm64-cpu.yml'
-    - 'CMakeLists.txt'
-    - 'cmake/**'
-    - 'src/*'
-    - 'src/layer/*'
-    - 'src/layer/arm/**'
-concurrency:
-  group: macos-arm64-cpu-${{ github.ref }}
-  cancel-in-progress: true
-env:
-  DEVELOPER_DIR: /Applications/Xcode_13.4.1.app/Contents/Developer
-  MAC_DEPLOYMENT_TARGET: '10.13'
-  MAC_ARM64_DEPLOYMENT_TARGET: '11.0'
-  ENABLE_BITCODE: OFF
-  ENABLE_ARC: OFF
-  ENABLE_VISIBILITY: OFF
-permissions:
-  contents: read
-
-jobs:
-  macos-clang:
-    runs-on: macos-12
-    steps:
-    - uses: actions/checkout@v4
-
-    - name: cache-openmp
-      id: cache-openmp
-      uses: actions/cache@v4
-      with:
-        path: openmp-install
-        key: openmp-macos-install-20230504
-    - name: openmp
-      if: steps.cache-openmp.outputs.cache-hit != 'true'
-      run: |
-        wget https://github.com/llvm/llvm-project/releases/download/llvmorg-11.0.0/openmp-11.0.0.src.tar.xz
-        tar -xf openmp-11.0.0.src.tar.xz
-        cd openmp-11.0.0.src
-        sed -i'' -e '/.size __kmp_unnamed_critical_addr/d' runtime/src/z_Linux_asm.S
-        sed -i'' -e 's/__kmp_unnamed_critical_addr/___kmp_unnamed_critical_addr/g' runtime/src/z_Linux_asm.S
-    - name: openmp-build-x86_64
-      if: steps.cache-openmp.outputs.cache-hit != 'true'
-      run: |
-        cd openmp-11.0.0.src
-        mkdir -p build-x86_64 && cd build-x86_64
-        cmake -DCMAKE_TOOLCHAIN_FILE=../../toolchains/ios.toolchain.cmake -DPLATFORM=MAC -DARCHS="x86_64" \
-            -DDEPLOYMENT_TARGET=$MAC_DEPLOYMENT_TARGET -DENABLE_BITCODE=$ENABLE_BITCODE -DENABLE_ARC=$ENABLE_ARC -DENABLE_VISIBILITY=$ENABLE_VISIBILITY \
-            -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=install \
-            -DPERL_EXECUTABLE=/usr/local/bin/perl \
-            -DLIBOMP_ENABLE_SHARED=OFF -DLIBOMP_OMPT_SUPPORT=OFF -DLIBOMP_USE_HWLOC=OFF ..
-        cmake --build . -j 3
-        cmake --build . --target install
-    - name: openmp-build-arm64
-      if: steps.cache-openmp.outputs.cache-hit != 'true'
-      run: |
-        cd openmp-11.0.0.src
-        mkdir -p build-arm64 && cd build-arm64
-        cmake -DCMAKE_TOOLCHAIN_FILE=../../toolchains/ios.toolchain.cmake -DPLATFORM=MAC_ARM64 -DARCHS="arm64" \
-            -DDEPLOYMENT_TARGET=$MAC_ARM64_DEPLOYMENT_TARGET -DENABLE_BITCODE=$ENABLE_BITCODE -DENABLE_ARC=$ENABLE_ARC -DENABLE_VISIBILITY=$ENABLE_VISIBILITY \
-            -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=install \
-            -DPERL_EXECUTABLE=/usr/local/bin/perl \
-            -DLIBOMP_ENABLE_SHARED=OFF -DLIBOMP_OMPT_SUPPORT=OFF -DLIBOMP_USE_HWLOC=OFF ..
-        cmake --build . -j 3
-        cmake --build . --target install
-    - name: openmp-merge-fat-library
-      if: steps.cache-openmp.outputs.cache-hit != 'true'
-      run: |
-        mkdir -p $GITHUB_WORKSPACE/openmp-install
-        cp -a openmp-11.0.0.src/build-x86_64/install/include $GITHUB_WORKSPACE/openmp-install
-        mkdir -p $GITHUB_WORKSPACE/openmp-install/lib
-        lipo -create \
-            openmp-11.0.0.src/build-x86_64/install/lib/libomp.a \
-            openmp-11.0.0.src/build-arm64/install/lib/libomp.a \
-            -o $GITHUB_WORKSPACE/openmp-install/lib/libomp.a
-
-    - name: install-openmp
-      run: |
-        sudo cp $GITHUB_WORKSPACE/openmp-install/include/* $DEVELOPER_DIR/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
-        sudo cp $GITHUB_WORKSPACE/openmp-install/lib/libomp.a $DEVELOPER_DIR/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/lib
-
-    - name: build
-      run: |
-        mkdir build && cd build
-        cmake -DCMAKE_TOOLCHAIN_FILE=../toolchains/ios.toolchain.cmake -DPLATFORM=MAC_ARM64 -DARCHS="arm64" \
-            -DDEPLOYMENT_TARGET=$MAC_ARM64_DEPLOYMENT_TARGET -DENABLE_BITCODE=$ENABLE_BITCODE -DENABLE_ARC=$ENABLE_ARC -DENABLE_VISIBILITY=$ENABLE_VISIBILITY \
-            -DOpenMP_C_FLAGS="-Xclang -fopenmp" -DOpenMP_CXX_FLAGS="-Xclang -fopenmp" \
-            -DOpenMP_C_LIB_NAMES="libomp" -DOpenMP_CXX_LIB_NAMES="libomp" \
-            -DOpenMP_libomp_LIBRARY="$DEVELOPER_DIR/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/lib/libomp.a" \
-            -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=install \
-            -DNCNN_BUILD_TOOLS=OFF -DNCNN_BUILD_EXAMPLES=OFF ..
-        cmake --build . -j 3
-
-    - name: build-shared
-      run: |
-        mkdir build-shared && cd build-shared
-        cmake -DCMAKE_TOOLCHAIN_FILE=../toolchains/ios.toolchain.cmake -DPLATFORM=MAC_ARM64 -DARCHS="arm64" \
-            -DDEPLOYMENT_TARGET=$MAC_ARM64_DEPLOYMENT_TARGET -DENABLE_BITCODE=$ENABLE_BITCODE -DENABLE_ARC=$ENABLE_ARC -DENABLE_VISIBILITY=$ENABLE_VISIBILITY \
-            -DOpenMP_C_FLAGS="-Xclang -fopenmp" -DOpenMP_CXX_FLAGS="-Xclang -fopenmp" \
-            -DOpenMP_C_LIB_NAMES="libomp" -DOpenMP_CXX_LIB_NAMES="libomp" \
-            -DOpenMP_libomp_LIBRARY="$DEVELOPER_DIR/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/lib/libomp.a" \
-            -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=install \
-            -DNCNN_BUILD_TOOLS=OFF -DNCNN_BUILD_EXAMPLES=OFF -DNCNN_SHARED_LIB=ON ..
-        cmake --build . -j 3
diff --git a/.github/workflows/macos-arm64-gpu.yml b/.github/workflows/macos-arm64-gpu.yml
deleted file mode 100644
index 1dbbe31ec32..00000000000
--- a/.github/workflows/macos-arm64-gpu.yml
+++ /dev/null
@@ -1,108 +0,0 @@
-name: macos-arm64-gpu
-on:
-  push:
-    branches: [master]
-    paths:
-    - '.github/workflows/macos-arm64-gpu.yml'
-    - 'CMakeLists.txt'
-    - 'cmake/**'
-    - 'src/*'
-    - 'src/layer/*'
-    - 'src/layer/arm/**'
-    - 'src/layer/vulkan/**'
-  pull_request:
-    branches: [master]
-    paths:
-    - '.github/workflows/macos-arm64-gpu.yml'
-    - 'CMakeLists.txt'
-    - 'cmake/**'
-    - 'src/*'
-    - 'src/layer/*'
-    - 'src/layer/arm/**'
-    - 'src/layer/vulkan/**'
-concurrency:
-  group: macos-arm64-gpu-${{ github.ref }}
-  cancel-in-progress: true
-env:
-  DEVELOPER_DIR: /Applications/Xcode_13.4.1.app/Contents/Developer
-  MAC_DEPLOYMENT_TARGET: '10.9'
-  MAC_ARM64_DEPLOYMENT_TARGET: '11.0'
-  ENABLE_BITCODE: OFF
-  ENABLE_ARC: OFF
-  ENABLE_VISIBILITY: OFF
-permissions:
-  contents: read
-
-jobs:
-  macos-clang-gpu:
-    runs-on: macos-12
-    steps:
-    - uses: actions/checkout@v4
-      with:
-        submodules: true
-
-    - name: cache-openmp
-      id: cache-openmp
-      uses: actions/cache@v4
-      with:
-        path: openmp-install
-        key: openmp-macos-install-20230504
-    - name: openmp
-      if: steps.cache-openmp.outputs.cache-hit != 'true'
-      run: |
-        wget https://github.com/llvm/llvm-project/releases/download/llvmorg-11.0.0/openmp-11.0.0.src.tar.xz
-        tar -xf openmp-11.0.0.src.tar.xz
-        cd openmp-11.0.0.src
-        sed -i'' -e '/.size __kmp_unnamed_critical_addr/d' runtime/src/z_Linux_asm.S
-        sed -i'' -e 's/__kmp_unnamed_critical_addr/___kmp_unnamed_critical_addr/g' runtime/src/z_Linux_asm.S
-    - name: openmp-build-x86_64
-      if: steps.cache-openmp.outputs.cache-hit != 'true'
-      run: |
-        cd openmp-11.0.0.src
-        mkdir -p build-x86_64 && cd build-x86_64
-        cmake -DCMAKE_TOOLCHAIN_FILE=../../toolchains/ios.toolchain.cmake -DPLATFORM=MAC -DARCHS="x86_64" \
-            -DDEPLOYMENT_TARGET=$MAC_DEPLOYMENT_TARGET -DENABLE_BITCODE=$ENABLE_BITCODE -DENABLE_ARC=$ENABLE_ARC -DENABLE_VISIBILITY=$ENABLE_VISIBILITY \
-            -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=install \
-            -DPERL_EXECUTABLE=/usr/local/bin/perl \
-            -DLIBOMP_ENABLE_SHARED=OFF -DLIBOMP_OMPT_SUPPORT=OFF -DLIBOMP_USE_HWLOC=OFF ..
-        cmake --build . -j 3
-        cmake --build . --target install
-    - name: openmp-build-arm64
-      if: steps.cache-openmp.outputs.cache-hit != 'true'
-      run: |
-        cd openmp-11.0.0.src
-        mkdir -p build-arm64 && cd build-arm64
-        cmake -DCMAKE_TOOLCHAIN_FILE=../../toolchains/ios.toolchain.cmake -DPLATFORM=MAC_ARM64 -DARCHS="arm64" \
-            -DDEPLOYMENT_TARGET=$MAC_ARM64_DEPLOYMENT_TARGET -DENABLE_BITCODE=$ENABLE_BITCODE -DENABLE_ARC=$ENABLE_ARC -DENABLE_VISIBILITY=$ENABLE_VISIBILITY \
-            -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=install \
-            -DPERL_EXECUTABLE=/usr/local/bin/perl \
-            -DLIBOMP_ENABLE_SHARED=OFF -DLIBOMP_OMPT_SUPPORT=OFF -DLIBOMP_USE_HWLOC=OFF ..
-        cmake --build . -j 3
-        cmake --build . --target install
-    - name: openmp-merge-fat-library
-      if: steps.cache-openmp.outputs.cache-hit != 'true'
-      run: |
-        mkdir -p $GITHUB_WORKSPACE/openmp-install
-        cp -a openmp-11.0.0.src/build-x86_64/install/include $GITHUB_WORKSPACE/openmp-install
-        mkdir -p $GITHUB_WORKSPACE/openmp-install/lib
-        lipo -create \
-            openmp-11.0.0.src/build-x86_64/install/lib/libomp.a \
-            openmp-11.0.0.src/build-arm64/install/lib/libomp.a \
-            -o $GITHUB_WORKSPACE/openmp-install/lib/libomp.a
-
-    - name: install-openmp
-      run: |
-        sudo cp $GITHUB_WORKSPACE/openmp-install/include/* $DEVELOPER_DIR/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
-        sudo cp $GITHUB_WORKSPACE/openmp-install/lib/libomp.a $DEVELOPER_DIR/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/lib
-
-    - name: build
-      run: |
-        mkdir build && cd build
-        cmake -DCMAKE_TOOLCHAIN_FILE=../toolchains/ios.toolchain.cmake -DPLATFORM=MAC_ARM64 -DARCHS="arm64" \
-            -DDEPLOYMENT_TARGET=$MAC_ARM64_DEPLOYMENT_TARGET -DENABLE_BITCODE=$ENABLE_BITCODE -DENABLE_ARC=$ENABLE_ARC -DENABLE_VISIBILITY=$ENABLE_VISIBILITY \
-            -DOpenMP_C_FLAGS="-Xclang -fopenmp" -DOpenMP_CXX_FLAGS="-Xclang -fopenmp" \
-            -DOpenMP_C_LIB_NAMES="libomp" -DOpenMP_CXX_LIB_NAMES="libomp" \
-            -DOpenMP_libomp_LIBRARY="$DEVELOPER_DIR/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/lib/libomp.a" \
-            -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=install \
-            -DNCNN_VULKAN=ON -DNCNN_BUILD_BENCHMARK=OFF -DNCNN_BUILD_TOOLS=OFF -DNCNN_BUILD_EXAMPLES=OFF ..
-        cmake --build . -j 3
diff --git a/.github/workflows/macos-x64-cpu.yml b/.github/workflows/macos-x64-cpu.yml
deleted file mode 100644
index 6db56205b70..00000000000
--- a/.github/workflows/macos-x64-cpu.yml
+++ /dev/null
@@ -1,132 +0,0 @@
-name: macos-x64-cpu
-on:
-  push:
-    branches: [master]
-    paths:
-    - '.github/workflows/macos-x64-cpu.yml'
-    - 'CMakeLists.txt'
-    - 'cmake/**'
-    - 'src/*'
-    - 'src/layer/*'
-    - 'src/layer/x86/**'
-    - 'tests/**'
-    - 'tools/**'
-    - '!tools/pnnx/**'
-    - 'examples/**'
-  pull_request:
-    branches: [master]
-    paths:
-    - '.github/workflows/macos-x64-cpu.yml'
-    - 'CMakeLists.txt'
-    - 'cmake/**'
-    - 'src/*'
-    - 'src/layer/*'
-    - 'src/layer/x86/**'
-    - 'tests/**'
-    - 'tools/**'
-    - '!tools/pnnx/**'
-    - 'examples/**'
-concurrency:
-  group: macos-x64-cpu-${{ github.ref }}
-  cancel-in-progress: true
-env:
-  DEVELOPER_DIR: /Applications/Xcode_13.4.1.app/Contents/Developer
-  MAC_DEPLOYMENT_TARGET: '10.9'
-  MAC_ARM64_DEPLOYMENT_TARGET: '11.0'
-  ENABLE_BITCODE: OFF
-  ENABLE_ARC: OFF
-  ENABLE_VISIBILITY: OFF
-permissions:
-  contents: read
-
-jobs:
-  macos-clang:
-    runs-on: macos-12
-    steps:
-    - uses: actions/checkout@v4
-
-    - name: protobuf
-      run: brew install protobuf opencv3
-
-    - name: cache-openmp
-      id: cache-openmp
-      uses: actions/cache@v4
-      with:
-        path: openmp-install
-        key: openmp-macos-install-20230504
-    - name: openmp
-      if: steps.cache-openmp.outputs.cache-hit != 'true'
-      run: |
-        wget https://github.com/llvm/llvm-project/releases/download/llvmorg-11.0.0/openmp-11.0.0.src.tar.xz
-        tar -xf openmp-11.0.0.src.tar.xz
-        cd openmp-11.0.0.src
-        sed -i'' -e '/.size __kmp_unnamed_critical_addr/d' runtime/src/z_Linux_asm.S
-        sed -i'' -e 's/__kmp_unnamed_critical_addr/___kmp_unnamed_critical_addr/g' runtime/src/z_Linux_asm.S
-    - name: openmp-build-x86_64
-      if: steps.cache-openmp.outputs.cache-hit != 'true'
-      run: |
-        cd openmp-11.0.0.src
-        mkdir -p build-x86_64 && cd build-x86_64
-        cmake -DCMAKE_TOOLCHAIN_FILE=../../toolchains/ios.toolchain.cmake -DPLATFORM=MAC -DARCHS="x86_64" \
-            -DDEPLOYMENT_TARGET=$MAC_DEPLOYMENT_TARGET -DENABLE_BITCODE=$ENABLE_BITCODE -DENABLE_ARC=$ENABLE_ARC -DENABLE_VISIBILITY=$ENABLE_VISIBILITY \
-            -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=install \
-            -DPERL_EXECUTABLE=/usr/local/bin/perl \
-            -DLIBOMP_ENABLE_SHARED=OFF -DLIBOMP_OMPT_SUPPORT=OFF -DLIBOMP_USE_HWLOC=OFF ..
-        cmake --build . -j 3
-        cmake --build . --target install
-    - name: openmp-build-arm64
-      if: steps.cache-openmp.outputs.cache-hit != 'true'
-      run: |
-        cd openmp-11.0.0.src
-        mkdir -p build-arm64 && cd build-arm64
-        cmake -DCMAKE_TOOLCHAIN_FILE=../../toolchains/ios.toolchain.cmake -DPLATFORM=MAC_ARM64 -DARCHS="arm64" \
-            -DDEPLOYMENT_TARGET=$MAC_ARM64_DEPLOYMENT_TARGET -DENABLE_BITCODE=$ENABLE_BITCODE -DENABLE_ARC=$ENABLE_ARC -DENABLE_VISIBILITY=$ENABLE_VISIBILITY \
-            -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=install \
-            -DPERL_EXECUTABLE=/usr/local/bin/perl \
-            -DLIBOMP_ENABLE_SHARED=OFF -DLIBOMP_OMPT_SUPPORT=OFF -DLIBOMP_USE_HWLOC=OFF ..
-        cmake --build . -j 3
-        cmake --build . --target install
-    - name: openmp-merge-fat-library
-      if: steps.cache-openmp.outputs.cache-hit != 'true'
-      run: |
-        mkdir -p $GITHUB_WORKSPACE/openmp-install
-        cp -a openmp-11.0.0.src/build-x86_64/install/include $GITHUB_WORKSPACE/openmp-install
-        mkdir -p $GITHUB_WORKSPACE/openmp-install/lib
-        lipo -create \
-            openmp-11.0.0.src/build-x86_64/install/lib/libomp.a \
-            openmp-11.0.0.src/build-arm64/install/lib/libomp.a \
-            -o $GITHUB_WORKSPACE/openmp-install/lib/libomp.a
-
-    - name: install-openmp
-      run: |
-        sudo cp $GITHUB_WORKSPACE/openmp-install/include/* $DEVELOPER_DIR/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
-        sudo cp $GITHUB_WORKSPACE/openmp-install/lib/libomp.a $DEVELOPER_DIR/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/lib
-
-    - name: build
-      run: |
-        mkdir build && cd build
-        cmake -DCMAKE_TOOLCHAIN_FILE=../toolchains/ios.toolchain.cmake -DPLATFORM=MAC -DARCHS="x86_64" \
-            -DDEPLOYMENT_TARGET=$MAC_DEPLOYMENT_TARGET -DENABLE_BITCODE=$ENABLE_BITCODE -DENABLE_ARC=$ENABLE_ARC -DENABLE_VISIBILITY=$ENABLE_VISIBILITY \
-            -DOpenMP_C_FLAGS="-Xclang -fopenmp" -DOpenMP_CXX_FLAGS="-Xclang -fopenmp" \
-            -DOpenMP_C_LIB_NAMES="libomp" -DOpenMP_CXX_LIB_NAMES="libomp" \
-            -DOpenMP_libomp_LIBRARY="$DEVELOPER_DIR/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/lib/libomp.a" \
-            -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=install \
-            -DNCNN_BUILD_TESTS=ON ..
-        cmake --build . -j 3
-
-    - name: test
-      run: |
-        cd build
-        ctest --output-on-failure -j 3
-
-    - name: build-shared
-      run: |
-        mkdir build-shared && cd build-shared
-        cmake -DCMAKE_TOOLCHAIN_FILE=../toolchains/ios.toolchain.cmake -DPLATFORM=MAC -DARCHS="x86_64" \
-            -DDEPLOYMENT_TARGET=$MAC_DEPLOYMENT_TARGET -DENABLE_BITCODE=$ENABLE_BITCODE -DENABLE_ARC=$ENABLE_ARC -DENABLE_VISIBILITY=$ENABLE_VISIBILITY \
-            -DOpenMP_C_FLAGS="-Xclang -fopenmp" -DOpenMP_CXX_FLAGS="-Xclang -fopenmp" \
-            -DOpenMP_C_LIB_NAMES="libomp" -DOpenMP_CXX_LIB_NAMES="libomp" \
-            -DOpenMP_libomp_LIBRARY="$DEVELOPER_DIR/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/lib/libomp.a" \
-            -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=install \
-            -DNCNN_SHARED_LIB=ON ..
-        cmake --build . -j 3
diff --git a/.github/workflows/macos-x64-gpu.yml b/.github/workflows/macos-x64-gpu.yml
deleted file mode 100644
index bfb2ae5805b..00000000000
--- a/.github/workflows/macos-x64-gpu.yml
+++ /dev/null
@@ -1,163 +0,0 @@
-name: macos-x64-gpu
-on:
-  push:
-    branches: [master]
-    paths:
-    - '.github/workflows/macos-x64-gpu.yml'
-    - 'CMakeLists.txt'
-    - 'cmake/**'
-    - 'src/*'
-    - 'src/layer/*'
-    - 'src/layer/x86/**'
-    - 'src/layer/vulkan/**'
-    - 'tests/**'
-    - 'tools/**'
-    - '!tools/pnnx/**'
-    - 'examples/**'
-  pull_request:
-    branches: [master]
-    paths:
-    - '.github/workflows/macos-x64-gpu.yml'
-    - 'CMakeLists.txt'
-    - 'cmake/**'
-    - 'src/*'
-    - 'src/layer/*'
-    - 'src/layer/x86/**'
-    - 'src/layer/vulkan/**'
-    - 'tests/**'
-    - 'tools/**'
-    - '!tools/pnnx/**'
-    - 'examples/**'
-concurrency:
-  group: macos-x64-gpu-${{ github.ref }}
-  cancel-in-progress: true
-env:
-  DEVELOPER_DIR: /Applications/Xcode_13.4.1.app/Contents/Developer
-  MAC_DEPLOYMENT_TARGET: '10.9'
-  MAC_ARM64_DEPLOYMENT_TARGET: '11.0'
-  ENABLE_BITCODE: OFF
-  ENABLE_ARC: OFF
-  ENABLE_VISIBILITY: OFF
-permissions:
-  contents: read
-
-jobs:
-  macos-clang-gpu:
-    runs-on: macos-12
-    steps:
-    - uses: actions/checkout@v4
-      with:
-        submodules: true
-    - name: protobuf
-      run: brew install protobuf opencv3
-
-    - name: cache-openmp
-      id: cache-openmp
-      uses: actions/cache@v4
-      with:
-        path: openmp-install
-        key: openmp-macos-install-20230504
-    - name: openmp
-      if: steps.cache-openmp.outputs.cache-hit != 'true'
-      run: |
-        wget https://github.com/llvm/llvm-project/releases/download/llvmorg-11.0.0/openmp-11.0.0.src.tar.xz
-        tar -xf openmp-11.0.0.src.tar.xz
-        cd openmp-11.0.0.src
-        sed -i'' -e '/.size __kmp_unnamed_critical_addr/d' runtime/src/z_Linux_asm.S
-        sed -i'' -e 's/__kmp_unnamed_critical_addr/___kmp_unnamed_critical_addr/g' runtime/src/z_Linux_asm.S
-    - name: openmp-build-x86_64
-      if: steps.cache-openmp.outputs.cache-hit != 'true'
-      run: |
-        cd openmp-11.0.0.src
-        mkdir -p build-x86_64 && cd build-x86_64
-        cmake -DCMAKE_TOOLCHAIN_FILE=../../toolchains/ios.toolchain.cmake -DPLATFORM=MAC -DARCHS="x86_64" \
-            -DDEPLOYMENT_TARGET=$MAC_DEPLOYMENT_TARGET -DENABLE_BITCODE=$ENABLE_BITCODE -DENABLE_ARC=$ENABLE_ARC -DENABLE_VISIBILITY=$ENABLE_VISIBILITY \
-            -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=install \
-            -DPERL_EXECUTABLE=/usr/local/bin/perl \
-            -DLIBOMP_ENABLE_SHARED=OFF -DLIBOMP_OMPT_SUPPORT=OFF -DLIBOMP_USE_HWLOC=OFF ..
-        cmake --build . -j 3
-        cmake --build . --target install
-    - name: openmp-build-arm64
-      if: steps.cache-openmp.outputs.cache-hit != 'true'
-      run: |
-        cd openmp-11.0.0.src
-        mkdir -p build-arm64 && cd build-arm64
-        cmake -DCMAKE_TOOLCHAIN_FILE=../../toolchains/ios.toolchain.cmake -DPLATFORM=MAC_ARM64 -DARCHS="arm64" \
-            -DDEPLOYMENT_TARGET=$MAC_ARM64_DEPLOYMENT_TARGET -DENABLE_BITCODE=$ENABLE_BITCODE -DENABLE_ARC=$ENABLE_ARC -DENABLE_VISIBILITY=$ENABLE_VISIBILITY \
-            -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=install \
-            -DPERL_EXECUTABLE=/usr/local/bin/perl \
-            -DLIBOMP_ENABLE_SHARED=OFF -DLIBOMP_OMPT_SUPPORT=OFF -DLIBOMP_USE_HWLOC=OFF ..
-        cmake --build . -j 3
-        cmake --build . --target install
-    - name: openmp-merge-fat-library
-      if: steps.cache-openmp.outputs.cache-hit != 'true'
-      run: |
-        mkdir -p $GITHUB_WORKSPACE/openmp-install
-        cp -a openmp-11.0.0.src/build-x86_64/install/include $GITHUB_WORKSPACE/openmp-install
-        mkdir -p $GITHUB_WORKSPACE/openmp-install/lib
-        lipo -create \
-            openmp-11.0.0.src/build-x86_64/install/lib/libomp.a \
-            openmp-11.0.0.src/build-arm64/install/lib/libomp.a \
-            -o $GITHUB_WORKSPACE/openmp-install/lib/libomp.a
-
-    - name: install-openmp
-      run: |
-        sudo cp $GITHUB_WORKSPACE/openmp-install/include/* $DEVELOPER_DIR/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
-        sudo cp $GITHUB_WORKSPACE/openmp-install/lib/libomp.a $DEVELOPER_DIR/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/lib
-
-    - name: cache-swiftshader
-      id: cache-swiftshader
-      uses: actions/cache@v4
-      with:
-        path: swiftshader-install
-        key: swiftshader-macos-install-20230420
-    - name: checkout-swiftshader
-      if: steps.cache-swiftshader.outputs.cache-hit != 'true'
-      uses: actions/checkout@v4
-      with:
-        repository: google/swiftshader
-        path: swiftshader
-        ref: dd55e592406dc0bae219df11adec6363840aff4a
-    - name: checkout-swiftshader-submodules
-      if: steps.cache-swiftshader.outputs.cache-hit != 'true'
-      run: |
-        cd swiftshader
-        git -c submodule."third_party/git-hooks".update=none submodule update --init --recursive
-    - name: swiftshader
-      if: steps.cache-swiftshader.outputs.cache-hit != 'true'
-      run: |
-        cd swiftshader
-        mkdir -p build; cd build
-        cmake -DCMAKE_INSTALL_PREFIX=install -DSWIFTSHADER_BUILD_EGL=FALSE -DSWIFTSHADER_BUILD_GLESv2=FALSE -DSWIFTSHADER_BUILD_GLES_CM=FALSE -DSWIFTSHADER_BUILD_VULKAN=TRUE -DSWIFTSHADER_BUILD_PVR=FALSE -DSWIFTSHADER_BUILD_TESTS=FALSE -DSWIFTSHADER_ENABLE_ASTC=FALSE -DSWIFTSHADER_WARNINGS_AS_ERRORS=FALSE -DREACTOR_BACKEND=Subzero -DREACTOR_DEFAULT_OPT_LEVEL=Default -DCMAKE_BUILD_TYPE=Release ..
-        cmake --build . -j 3
-        mkdir $GITHUB_WORKSPACE/swiftshader-install
-        cp Darwin/* $GITHUB_WORKSPACE/swiftshader-install
-
-    - name: build
-      run: |
-        mkdir build && cd build
-        cmake -DCMAKE_TOOLCHAIN_FILE=../toolchains/ios.toolchain.cmake -DPLATFORM=MAC -DARCHS="x86_64" \
-            -DDEPLOYMENT_TARGET=$MAC_DEPLOYMENT_TARGET -DENABLE_BITCODE=$ENABLE_BITCODE -DENABLE_ARC=$ENABLE_ARC -DENABLE_VISIBILITY=$ENABLE_VISIBILITY \
-            -DOpenMP_C_FLAGS="-Xclang -fopenmp" -DOpenMP_CXX_FLAGS="-Xclang -fopenmp" \
-            -DOpenMP_C_LIB_NAMES="libomp" -DOpenMP_CXX_LIB_NAMES="libomp" \
-            -DOpenMP_libomp_LIBRARY="$DEVELOPER_DIR/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/lib/libomp.a" \
-            -DVulkan_LIBRARY=$GITHUB_WORKSPACE/swiftshader-install/libvulkan.dylib \
-            -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=install \
-            -DNCNN_VULKAN=ON -DNCNN_BUILD_TESTS=ON ..
-        cmake --build . -j 3
-    - name: test
-      run: |
-        printf "[Processor]\nThreadCount=1\n" > build/tests/SwiftShader.ini
-        cd build && ctest --output-on-failure -j 3
-    - name: build-shared
-      run: |
-        mkdir build-shared && cd build-shared
-        cmake -DCMAKE_TOOLCHAIN_FILE=../toolchains/ios.toolchain.cmake -DPLATFORM=MAC -DARCHS="x86_64" \
-            -DDEPLOYMENT_TARGET=$MAC_DEPLOYMENT_TARGET -DENABLE_BITCODE=$ENABLE_BITCODE -DENABLE_ARC=$ENABLE_ARC -DENABLE_VISIBILITY=$ENABLE_VISIBILITY \
-            -DOpenMP_C_FLAGS="-Xclang -fopenmp" -DOpenMP_CXX_FLAGS="-Xclang -fopenmp" \
-            -DOpenMP_C_LIB_NAMES="libomp" -DOpenMP_CXX_LIB_NAMES="libomp" \
-            -DOpenMP_libomp_LIBRARY="$DEVELOPER_DIR/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/lib/libomp.a" \
-            -DVulkan_LIBRARY=$GITHUB_WORKSPACE/swiftshader-install/libvulkan.dylib \
-            -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=install \
-            -DNCNN_VULKAN=ON -DNCNN_SHARED_LIB=ON ..
-        cmake --build . -j 3
diff --git a/.github/workflows/macos.yml b/.github/workflows/macos.yml
new file mode 100644
index 00000000000..e4df7880ac5
--- /dev/null
+++ b/.github/workflows/macos.yml
@@ -0,0 +1,198 @@
+name: macos
+on:
+  push:
+    branches: [master]
+    paths:
+    - '.github/workflows/macos.yml'
+    - 'toolchains/ios.toolchain.cmake'
+    - 'CMakeLists.txt'
+    - 'cmake/**'
+    - 'src/*'
+    - 'src/layer/*'
+    - 'src/layer/arm/**'
+    - 'src/layer/x86/**'
+    - 'src/layer/vulkan/**'
+    - 'tests/**'
+    - 'tools/**'
+    - '!tools/pnnx/**'
+    - 'examples/**'
+  pull_request:
+    branches: [master]
+    paths:
+    - '.github/workflows/macos.yml'
+    - 'toolchains/ios.toolchain.cmake'
+    - 'CMakeLists.txt'
+    - 'cmake/**'
+    - 'src/*'
+    - 'src/layer/*'
+    - 'src/layer/arm/**'
+    - 'src/layer/x86/**'
+    - 'src/layer/vulkan/**'
+    - 'tests/**'
+    - 'tools/**'
+    - '!tools/pnnx/**'
+    - 'examples/**'
+concurrency:
+  group: macos-${{ github.ref }}
+  cancel-in-progress: true
+env:
+  DEVELOPER_DIR: /Applications/Xcode_15.2.app/Contents/Developer
+  MAC_DEPLOYMENT_TARGET: '11.0'
+  ENABLE_BITCODE: OFF
+  ENABLE_ARC: OFF
+  ENABLE_VISIBILITY: OFF
+permissions:
+  contents: read
+
+jobs:
+  build:
+    runs-on: macos-13
+    env:
+      OPENMP_VERSION: '18.1.2'
+      OPENMP_CMAKE_OPTIONS: |
+        -DCMAKE_TOOLCHAIN_FILE=../../toolchains/ios.toolchain.cmake \
+        -DDEPLOYMENT_TARGET=$MAC_DEPLOYMENT_TARGET \
+        -DENABLE_BITCODE=$ENABLE_BITCODE \
+        -DENABLE_ARC=$ENABLE_ARC \
+        -DENABLE_VISIBILITY=$ENABLE_VISIBILITY \
+        -DCMAKE_INSTALL_PREFIX=install \
+        -DCMAKE_BUILD_TYPE=Release \
+        -DPERL_EXECUTABLE=/usr/local/bin/perl \
+        -DLIBOMP_ENABLE_SHARED=OFF \
+        -DLIBOMP_OMPT_SUPPORT=OFF \
+        -DLIBOMP_USE_HWLOC=OFF \
+
+      MOLTENVK_VERSION: 'v1.2.8'
+      NCNN_CMAKE_OPTIONS: |
+        -DCMAKE_TOOLCHAIN_FILE=../toolchains/ios.toolchain.cmake \
+        -DDEPLOYMENT_TARGET=$MAC_DEPLOYMENT_TARGET \
+        -DENABLE_BITCODE=$ENABLE_BITCODE \
+        -DENABLE_ARC=$ENABLE_ARC \
+        -DENABLE_VISIBILITY=$ENABLE_VISIBILITY \
+        -DCMAKE_INSTALL_PREFIX=install \
+        -DCMAKE_BUILD_TYPE=Release \
+        -DOpenMP_C_FLAGS="-Xclang -fopenmp" -DOpenMP_CXX_FLAGS="-Xclang -fopenmp" \
+        -DOpenMP_C_LIB_NAMES="libomp" -DOpenMP_CXX_LIB_NAMES="libomp" \
+        -DOpenMP_libomp_LIBRARY="libomp.a" \
+        -DNCNN_VULKAN=ON \
+
+    steps:
+    - uses: actions/checkout@v4
+      with:
+        submodules: true
+
+    - name: cache-openmp
+      id: cache-openmp
+      uses: actions/cache@v4
+      with:
+        path: openmp-install
+        key: openmp-macos-install-20240403
+    - name: openmp
+      if: steps.cache-openmp.outputs.cache-hit != 'true'
+      run: |
+        wget https://github.com/llvm/llvm-project/releases/download/llvmorg-${{ env.OPENMP_VERSION }}/cmake-${{ env.OPENMP_VERSION }}.src.tar.xz
+        tar -xf cmake-${{ env.OPENMP_VERSION }}.src.tar.xz
+        wget https://github.com/llvm/llvm-project/releases/download/llvmorg-${{ env.OPENMP_VERSION }}/openmp-${{ env.OPENMP_VERSION }}.src.tar.xz
+        tar -xf openmp-${{ env.OPENMP_VERSION }}.src.tar.xz
+        mv cmake-${{ env.OPENMP_VERSION }}.src/Modules/* openmp-${{ env.OPENMP_VERSION }}.src/cmake/
+        cd openmp-${{ env.OPENMP_VERSION }}.src
+        wget https://github.com/nihui/llvm-project/commit/ef8c35bcf5d9cfdb0764ffde6a63c04ec715bc37.patch
+        patch -p2 -i ef8c35bcf5d9cfdb0764ffde6a63c04ec715bc37.patch
+        wget https://github.com/nihui/llvm-project/commit/5c12711f9a21f41bea70566bf15a4026804d6b20.patch
+        patch -p2 -i 5c12711f9a21f41bea70566bf15a4026804d6b20.patch
+    - name: openmp-x86_64
+      if: steps.cache-openmp.outputs.cache-hit != 'true'
+      run: |
+        cd openmp-${{ env.OPENMP_VERSION }}.src
+        mkdir -p build-x86_64 && cd build-x86_64
+        cmake ${{ env.OPENMP_CMAKE_OPTIONS }} -DPLATFORM=MAC -DARCHS="x86_64" ..
+        cmake --build . -j 4
+        cmake --build . --target install
+    - name: openmp-arm64
+      if: steps.cache-openmp.outputs.cache-hit != 'true'
+      run: |
+        cd openmp-${{ env.OPENMP_VERSION }}.src
+        mkdir -p build-arm64 && cd build-arm64
+        cmake ${{ env.OPENMP_CMAKE_OPTIONS }} -DPLATFORM=MAC_ARM64 -DARCHS="arm64" ..
+        cmake --build . -j 4
+        cmake --build . --target install
+    - name: openmp-merge-fat-library
+      if: steps.cache-openmp.outputs.cache-hit != 'true'
+      run: |
+        mkdir -p $GITHUB_WORKSPACE/openmp-install
+        cp -a openmp-${{ env.OPENMP_VERSION }}.src/build-x86_64/install/include $GITHUB_WORKSPACE/openmp-install
+        mkdir -p $GITHUB_WORKSPACE/openmp-install/lib
+        lipo -create \
+            openmp-${{ env.OPENMP_VERSION }}.src/build-x86_64/install/lib/libomp.a \
+            openmp-${{ env.OPENMP_VERSION }}.src/build-arm64/install/lib/libomp.a \
+            -o $GITHUB_WORKSPACE/openmp-install/lib/libomp.a
+
+    - name: install-openmp
+      run: |
+        sudo cp $GITHUB_WORKSPACE/openmp-install/include/* $DEVELOPER_DIR/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
+        sudo cp $GITHUB_WORKSPACE/openmp-install/lib/libomp.a $DEVELOPER_DIR/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/lib
+
+    - name: cache-swiftshader
+      id: cache-swiftshader
+      uses: actions/cache@v4
+      with:
+        path: swiftshader-install
+        key: swiftshader-macos-install-20230420
+    - name: checkout-swiftshader
+      if: steps.cache-swiftshader.outputs.cache-hit != 'true'
+      uses: actions/checkout@v4
+      with:
+        repository: google/swiftshader
+        path: swiftshader
+        ref: dd55e592406dc0bae219df11adec6363840aff4a
+    - name: checkout-swiftshader-submodules
+      if: steps.cache-swiftshader.outputs.cache-hit != 'true'
+      run: |
+        cd swiftshader
+        git -c submodule."third_party/git-hooks".update=none submodule update --init --recursive
+    - name: swiftshader
+      if: steps.cache-swiftshader.outputs.cache-hit != 'true'
+      run: |
+        cd swiftshader
+        mkdir -p build; cd build
+        cmake -DCMAKE_INSTALL_PREFIX=install -DSWIFTSHADER_BUILD_EGL=FALSE -DSWIFTSHADER_BUILD_GLESv2=FALSE -DSWIFTSHADER_BUILD_GLES_CM=FALSE -DSWIFTSHADER_BUILD_VULKAN=TRUE -DSWIFTSHADER_BUILD_PVR=FALSE -DSWIFTSHADER_BUILD_TESTS=FALSE -DSWIFTSHADER_ENABLE_ASTC=FALSE -DSWIFTSHADER_WARNINGS_AS_ERRORS=FALSE -DREACTOR_BACKEND=Subzero -DREACTOR_DEFAULT_OPT_LEVEL=Default -DCMAKE_BUILD_TYPE=Release ..
+        cmake --build . -j 3
+        mkdir $GITHUB_WORKSPACE/swiftshader-install
+        cp Darwin/* $GITHUB_WORKSPACE/swiftshader-install
+
+    - name: moltenvk
+      run: |
+        wget -q https://github.com/KhronosGroup/MoltenVK/releases/download/${{ env.MOLTENVK_VERSION }}/MoltenVK-all.tar
+        tar -xf MoltenVK-all.tar
+
+    - name: arm64
+      run: |
+        mkdir build-arm64 && cd build-arm64
+        cmake ${{ env.NCNN_CMAKE_OPTIONS }} -DPLATFORM=MAC_ARM64 -DARCHS="arm64" \
+            -DVulkan_LIBRARY=$GITHUB_WORKSPACE/MoltenVK/MoltenVK/static/MoltenVK.xcframework/macos-arm64_x86_64/libMoltenVK.a ..
+        cmake --build . -j 4
+    - name: x86_64
+      run: |
+        mkdir build-x86_64 && cd build-x86_64
+        cmake ${{ env.NCNN_CMAKE_OPTIONS }} -DPLATFORM=MAC -DARCHS="x86_64" \
+            -DVulkan_LIBRARY=$GITHUB_WORKSPACE/swiftshader-install/libvulkan.dylib \
+            -DNCNN_BUILD_TESTS=ON ..
+        cmake --build . -j 4
+
+    - name: arm64-shared
+      run: |
+        mkdir build-arm64-shared && cd build-arm64-shared
+        cmake ${{ env.NCNN_CMAKE_OPTIONS }} -DPLATFORM=MAC_ARM64 -DARCHS="arm64" -DNCNN_SHARED_LIB=ON \
+            -DVulkan_LIBRARY=$GITHUB_WORKSPACE/MoltenVK/MoltenVK/dynamic/MoltenVK.xcframework/macos-arm64_x86_64/MoltenVK.framework/MoltenVK ..
+        cmake --build . -j 4
+    - name: x86_64-shared
+      run: |
+        mkdir build-x86_64-shared && cd build-x86_64-shared
+        cmake ${{ env.NCNN_CMAKE_OPTIONS }} -DPLATFORM=MAC -DARCHS="x86_64" -DNCNN_SHARED_LIB=ON \
+            -DVulkan_LIBRARY=$GITHUB_WORKSPACE/MoltenVK/MoltenVK/dynamic/MoltenVK.xcframework/macos-arm64_x86_64/MoltenVK.framework/MoltenVK ..
+        cmake --build . -j 4
+
+    - name: x86_64-test
+      run: |
+        printf "[Processor]\nThreadCount=1\n" > build-x86_64/tests/SwiftShader.ini
+        cd build-x86_64 && ctest --output-on-failure -j 4
diff --git a/README.md b/README.md
index aa05b040192..e97ca3449d5 100644
--- a/README.md
+++ b/README.md
@@ -135,9 +135,9 @@ https://github.com/Tencent/ncnn/releases/latest
   [<img src="https://img.shields.io/badge/+bitcode-blue?style=for-the-badge">](https://github.com/Tencent/ncnn/releases/latest/download/ncnn-20240102-ios-vulkan-bitcode.zip)
 
 </td>
-<td rowspan=2>
+<td rowspan=4>
 
-  [<img src="https://img.shields.io/github/actions/workflow/status/Tencent/ncnn/ios-arm64-gpu.yml?branch=master&style=for-the-badge&label=build">](https://github.com/Tencent/ncnn/actions?query=workflow%3Aios-arm64-gpu)
+  [<img src="https://img.shields.io/github/actions/workflow/status/Tencent/ncnn/ios.yml?branch=master&style=for-the-badge&label=build">](https://github.com/Tencent/ncnn/actions?query=workflow%3Aios)
 
 </td>
 </tr>
@@ -157,11 +157,6 @@ https://github.com/Tencent/ncnn/releases/latest
   [<img src="https://img.shields.io/badge/download-blue?style=for-the-badge">](https://github.com/Tencent/ncnn/releases/latest/download/ncnn-20240102-ios-simulator-vulkan.zip)
   [<img src="https://img.shields.io/badge/+bitcode-blue?style=for-the-badge">](https://github.com/Tencent/ncnn/releases/latest/download/ncnn-20240102-ios-simulator-vulkan-bitcode.zip)
 
-</td>
-<td rowspan=2>
-
-  [<img src="https://img.shields.io/github/actions/workflow/status/Tencent/ncnn/ios-simulator-gpu.yml?branch=master&style=for-the-badge&label=build">](https://github.com/Tencent/ncnn/actions?query=workflow%3Aios-simulator-gpu)
-
 </td>
 </tr>
 <tr>
@@ -193,7 +188,7 @@ https://github.com/Tencent/ncnn/releases/latest
 </td>
 <td rowspan=2>
 
-  [<img src="https://img.shields.io/github/actions/workflow/status/Tencent/ncnn/macos-arm64-gpu.yml?branch=master&style=for-the-badge&label=build">](https://github.com/Tencent/ncnn/actions?query=workflow%3Amacos-arm64-gpu)
+  [<img src="https://img.shields.io/github/actions/workflow/status/Tencent/ncnn/macos.yml?branch=master&style=for-the-badge&label=build">](https://github.com/Tencent/ncnn/actions?query=workflow%3Amacos)
 
 </td>
 </tr>
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 487fb26d852..91041813abd 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -311,6 +311,10 @@ if(NCNN_VULKAN)
         find_library(IOSurface NAMES IOSurface)
         list(APPEND vulkan_dependent_LINK_LIBRARIES ${Metal} ${Foundation} ${QuartzCore} ${CoreGraphics} ${IOSurface})
         if(CMAKE_SYSTEM_NAME STREQUAL "Darwin")
+            if(NOT IOS)
+                find_library(AppKit NAMES AppKit)
+                list(APPEND vulkan_dependent_LINK_LIBRARIES ${AppKit})
+            endif()
             find_library(IOKit NAMES IOKit)
             list(APPEND vulkan_dependent_LINK_LIBRARIES ${IOKit})
         endif()