Update Docker file

Author: banach-space

Dockerfile_archlinux

@@ -5,8 +5,8 @@
 # USAGE:
 # ```bash
 # wget https://raw.githubusercontent.com/banach-space/llvm-tutor/main/Dockerfile_archlinux
-# docker build -t=llvm-tutor:llvm-19 .
-# docker run --rm -it --hostname=llvm-tutor llvm-tutor:llvm-19 /bin/bash
+# docker build -t=llvm-tutor:llvm-20 .
+# docker run --rm -it --hostname=llvm-tutor llvm-tutor:llvm-20 /bin/bash
 # ```
 # =============================================================================
 

Dockerfile_fedora

@@ -5,8 +5,8 @@
 # USAGE:
 # ```bash
 # wget https://raw.githubusercontent.com/banach-space/llvm-tutor/main/Dockerfile_fedora
-# docker build -t=llvm-tutor:llvm-19 .
-# docker run --rm -it --hostname=llvm-tutor llvm-tutor:llvm-19 /bin/bash
+# docker build -t=llvm-tutor:llvm-20 .
+# docker run --rm -it --hostname=llvm-tutor llvm-tutor:llvm-20 /bin/bash
 # ```
 # =============================================================================
 

Dockerfile_ubuntu

@@ -6,8 +6,8 @@
 # USAGE:
 # ```bash
 # wget https://raw.githubusercontent.com/banach-space/llvm-tutor/main/Dockerfile_ubuntu
-# docker build -t=llvm-tutor:llvm-19 .
-# docker run --rm -it --hostname=llvm-tutor llvm-tutor:llvm-19 /bin/bash
+# docker build -t=llvm-tutor:llvm-20 .
+# docker run --rm -it --hostname=llvm-tutor llvm-tutor:llvm-20 /bin/bash
 # ```
 # =============================================================================
 
@@ -31,7 +31,7 @@ RUN pip3 install lit
 # reason, we need to add `-DLLVM_INSTALL_UTILS=ON` CMake flag when building
 # LLVM.
 ENV LLVM_DIR /opt/llvm
-RUN git clone --branch release/19.x --depth 1 https://github.com/llvm/llvm-project \
+RUN git clone --branch release/20.x --depth 1 https://github.com/llvm/llvm-project \
     && mkdir -p $LLVM_DIR \
     && mkdir -p llvm-project/build \
     && cd llvm-project/build \

Dockerfile_ubuntu_apt

@@ -6,14 +6,14 @@
 # USAGE:
 # ```bash
 # wget https://raw.githubusercontent.com/banach-space/llvm-tutor/main/Dockerfile_ubuntu_apt
-# docker build -t=llvm-tutor:llvm-19 .
-# docker run --rm -it --hostname=llvm-tutor llvm-tutor:llvm-19 /bin/bash
+# docker build -t=llvm-tutor:llvm-20 .
+# docker run --rm -it --hostname=llvm-tutor llvm-tutor:llvm-20 /bin/bash
 # ```
 # =============================================================================
 
 FROM ubuntu:22.04
 
-ENV LLVM_DIR /usr/lib/llvm-19/
+ENV LLVM_DIR /usr/lib/llvm-20/
 ENV TUTOR_DIR /llvm-tutor
 
 # 1. INSTALL DEPENDENCIES
@@ -35,9 +35,9 @@ RUN apt-get update && apt-get install -y \
     && rm -rf /var/lib/apt/lists/*
 
 RUN wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key | apt-key add -
-RUN apt-add-repository "deb http://apt.llvm.org/jammy/ llvm-toolchain-jammy-19 main"
+RUN apt-add-repository "deb http://apt.llvm.org/jammy/ llvm-toolchain-jammy-20 main"
 RUN apt-get update
-RUN apt-get install -y llvm-19 llvm-19-dev llvm-19-tools clang-19
+RUN apt-get install -y llvm-20 llvm-20-dev llvm-20-tools clang-20
 RUN apt-get install -y python3-setuptools
 
 # 2. INSTALL LIT
@@ -51,8 +51,8 @@ RUN mkdir -p $TUTOR_DIR/hello-world-build \
     && cd $TUTOR_DIR/hello-world-build \
     && cmake -G Ninja -DLT_LLVM_INSTALL_DIR=$LLVM_DIR ../HelloWorld \
     && ninja
-RUN cd $TUTOR_DIR/hello-world-build && /usr/bin/clang-19 -S -O1 -emit-llvm ../inputs/input_for_hello.c -o input_for_hello.ll
-RUN cd $TUTOR_DIR/hello-world-build && /usr/bin/opt-19 -load-pass-plugin ./libHelloWorld.so -passes=hello-world -disable-output input_for_hello.ll 2>&1 | grep "(llvm-tutor) Hello from: foo"
+RUN cd $TUTOR_DIR/hello-world-build && /usr/bin/clang-20 -S -O1 -emit-llvm ../inputs/input_for_hello.c -o input_for_hello.ll
+RUN cd $TUTOR_DIR/hello-world-build && /usr/bin/opt-20 -load-pass-plugin ./libHelloWorld.so -passes=hello-world -disable-output input_for_hello.ll 2>&1 | grep "(llvm-tutor) Hello from: foo"
 
 # 5. BUILD AND RUN LLVM-TUTOR
 RUN mkdir -p $TUTOR_DIR/build \