diff --git a/.lldbinit b/.lldbinit
new file mode 100644
index 000000000000..7cea5ce79cdb
--- /dev/null
+++ b/.lldbinit
@@ -0,0 +1,5 @@
+command script import ~/prg/zig/0/tools/lldb_pretty_printers.py
+type category enable zig.stage2 zig.std zig
+type summary add --inline-children arch.x86_64.CodeGen.FrameAddr
+type summary add --inline-children arch.x86_64.CodeGen.RegisterOffset
+type summary add --inline-children arch.x86_64.CodeGen.InstTracking
diff --git a/build.sh b/build.sh
new file mode 100755
index 000000000000..71d5fe827d76
--- /dev/null
+++ b/build.sh
@@ -0,0 +1,11 @@
+#!/bin/sh
+set -e
+build=build
+if [ "x$1" != x--debug ]; then
+    cmake -GNinja -S. -B$build -DCMAKE_BUILD_TYPE:STRING=Release -DCMAKE_C_COMPILER:FILEPATH=clang -DCMAKE_CXX_COMPILER:FILEPATH=clang++ -DZIG_NO_LIB:BOOL=ON
+    cmake --build $build
+    cmake --install $build
+else
+    shift
+fi
+$build/stage3/bin/zig build -p debug -Dno-lib -Denable-llvm "$@"
diff --git a/test.sh b/test.sh
new file mode 100755
index 000000000000..d30a3614b225
--- /dev/null
+++ b/test.sh
@@ -0,0 +1,26 @@
+#!/bin/bash
+if [[ $1 == --behavior-c ]]; then
+    shift
+    ./build.sh --debug && debug/bin/zig test -Itest test/behavior.zig -ofmt=c "$@"
+elif [[ $1 == --enable-fixed-behavior ]]; then
+    backend=$2
+    shift 2
+    declare -A offsets
+    git grep --no-index --line-number stage2_$backend test/behavior | while read -r match; do
+        printf '\e[36mTrying to enable... %s\e[m\n' "$match"
+        file=`cut -d: -f1 <<<"$match"`
+        offset=${offsets[$file]:=0}
+        echo "match = \"$match\""
+        let line=`cut -d: -f2 <<<"$match"`-$offset
+        contents=`cut -d: -f3- <<<"$match"`
+        sed --in-place "${line}d" "$file"
+        if timeout 15s debug/bin/zig test -Itest test/behavior.zig "$@"; then
+            printf '\e[32mTest was enabled! :)\e[m\n'
+            let offsets[$file]+=1
+        else
+            printf '\e[31mTest kept disabled. :(\e[m\n'
+            sed --in-place "${line}i\\
+$contents" "$file"
+        fi
+    done
+fi