diff --git a/.devcontainer/devcontainer.json b/.devcontainer/devcontainer.json
index 306cf83..d966652 100644
--- a/.devcontainer/devcontainer.json
+++ b/.devcontainer/devcontainer.json
@@ -12,7 +12,10 @@
 		"matepek.vscode-catch2-test-adapter",
 		"twxs.cmake",
 		"vadimcn.vscode-lldb",
-		"xaver.clang-format"
+		"xaver.clang-format",
+		"yzhang.markdown-all-in-one",
+		"shd101wyy.markdown-preview-enhanced",
+		"streetsidesoftware.code-spell-checker"
 		],
 
 	// Use 'forwardPorts' to make a list of ports inside the container available locally.
diff --git a/.vscode/launch.json b/.vscode/launch.json
index fc64681..b508518 100644
--- a/.vscode/launch.json
+++ b/.vscode/launch.json
@@ -4,21 +4,6 @@
   // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
   "version": "0.2.0",
   "configurations": [
-  // {
-  //     "type": "lldb",
-  //     "request": "launch",
-  //     "name": "LLDB Unrolling",
-  //     "program": "/usr/bin/opt",
-  //     "args": [
-  //       "-load-pass-plugin",
-  //       "${workspaceFolder}/build/libCacheAnalysisPass.so",
-  //       "-passes=lru-misses",
-  //       "${workspaceFolder}/test/cnt.ll",
-  //       "-o",
-  //       "/dev/null"
-  //     ],
-  //     "cwd": "${workspaceFolder}"
-  //   },
     {
       "type": "lldb",
       "request": "launch",
@@ -34,36 +19,36 @@
       ],
       "cwd": "${workspaceFolder}"
     },
-    {
-      "name": "gdb fft1",
-      "type": "cppdbg",//Only Usable with C/C++ extension installed from Microsoft.
-      "request": "launch",
-      "program": "/usr/bin/opt",
-      "args": [
-        "-load-pass-plugin",
-        "${fileDirname}/../build/lib/libCacheAnalysisPass.so",
-        "-passes='lru-misses'",
-        "${fileDirname}/../test/fft1.ll",
-        "-o",
-        "/dev/null"
-      ],
-      "stopAtEntry": false,
-      "cwd": "${fileDirname}",
-      "environment": [],
-      "externalConsole": false,
-      "MIMode": "gdb",
-      "setupCommands": [
-        {
-          "description": "Enable pretty-printing for gdb",
-          "text": "-enable-pretty-printing",
-          "ignoreFailures": true
-        },
-        {
-          "description": "Set Disassembly Flavor to Intel",
-          "text": "-gdb-set disassembly-flavor intel",
-          "ignoreFailures": true
-        }
-      ]
-    }
+    // {
+    //   "name": "gdb fft1",
+    //   "type": "cppdbg",//Only Usable with C/C++ extension installed from Microsoft.
+    //   "request": "launch",
+    //   "program": "/usr/bin/opt",
+    //   "args": [
+    //     "-load-pass-plugin",
+    //     "${fileDirname}/../build/lib/libCacheAnalysisPass.so",
+    //     "-passes='lru-misses'",
+    //     "${fileDirname}/../test/fft1.ll",
+    //     "-o",
+    //     "/dev/null"
+    //   ],
+    //   "stopAtEntry": false,
+    //   "cwd": "${fileDirname}",
+    //   "environment": [],
+    //   "externalConsole": false,
+    //   "MIMode": "gdb",
+    //   "setupCommands": [
+    //     {
+    //       "description": "Enable pretty-printing for gdb",
+    //       "text": "-enable-pretty-printing",
+    //       "ignoreFailures": true
+    //     },
+    //     {
+    //       "description": "Set Disassembly Flavor to Intel",
+    //       "text": "-gdb-set disassembly-flavor intel",
+    //       "ignoreFailures": true
+    //     }
+    //   ]
+    // }
   ]
 }
\ No newline at end of file
diff --git a/.vscode/tasks.json b/.vscode/tasks.json
index 5d687a3..79e5713 100644
--- a/.vscode/tasks.json
+++ b/.vscode/tasks.json
@@ -3,10 +3,16 @@
   // for the documentation about the tasks.json format
   "version": "2.0.0",
   "tasks": [
+    {
+      "label": "config",
+      "type": "shell",
+      "command": "rm -r build ; rm complile_commands.json ; mkdir build ; cd build ; cmake -G Ninja -DCMAKE_BUILD_TYPE=Debug -DCMAKE_EXPORT_COMPILE_COMMANDS=1 -DLT_LLVM_INSTALL_DIR=$LLVM_DIR ..",
+      "group": "build"
+    },
     {
       "label": "build",
       "type": "shell",
-      "command": "./helper.sh all",
+      "command": " cd build ; ninja ",
       "group": "build"
     },
   ]
diff --git a/helper.sh b/helper.sh
index f1ce1d5..64379a6 100755
--- a/helper.sh
+++ b/helper.sh
@@ -11,7 +11,7 @@ config () {
   mkdir build
   cd build
   echo "==== Configuring cmake ===="
-  cmake -G Ninja -DCMAKE_BUILD_TYPE=Debug -DCMAKE_EXPORT_COMPILE_COMMANDS=1 -DLT_LLVM_INSTALL_DIR=/usr ..
+  cmake -G Ninja -DCMAKE_BUILD_TYPE=Debug -DCMAKE_EXPORT_COMPILE_COMMANDS=1 -DLT_LLVM_INSTALL_DIR=$LLVM_DIR ..
   cd ..
   cp build/compile_commands.json compile_commands.json
   echo "==== Done! ===="