gitlab-ci: Test against LLVM / clang 9 on x86

They're not available for Debian buster yet, so we have to use upstream
snapshot packages again.

In contrast to earlier, we now store the LLVM APT repository key in Git
instead of re-downloading it every time.

4 files changed, 79 insertions, 5 deletions

diff --git a/.gitlab-ci/container/llvm-snapshot.gpg.key b/.gitlab-ci/container/llvm-snapshot.gpg.key
new file mode 100644
index 00000000000..aa6b105aa3d
--- /dev/null
+++ b/.gitlab-ci/container/llvm-snapshot.gpg.key
@@ -0,0 +1,52 @@
+-----BEGIN PGP PUBLIC KEY BLOCK-----
+Version: GnuPG v1.4.12 (GNU/Linux)
+
+mQINBFE9lCwBEADi0WUAApM/mgHJRU8lVkkw0CHsZNpqaQDNaHefD6Rw3S4LxNmM
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+=j+4q
+-----END PGP PUBLIC KEY BLOCK-----
diff --git a/.gitlab-ci/container/x86_build.sh b/.gitlab-ci/container/x86_build.sh
index 374d1e8bb86..55aa247492d 100644
--- a/.gitlab-ci/container/x86_build.sh
+++ b/.gitlab-ci/container/x86_build.sh
@@ -12,9 +12,14 @@ done
 
 apt-get install -y \
       ca-certificates \
+      gnupg \
       unzip \
       wget
 
+# Upstream LLVM package repository
+apt-key add .gitlab-ci/container/llvm-snapshot.gpg.key
+echo "deb https://apt.llvm.org/buster/ llvm-toolchain-buster-9 main" >/etc/apt/sources.list.d/llvm9.list
+
 sed -i -e 's/http:\/\/deb/https:\/\/deb/g' /etc/apt/sources.list
 echo 'deb https://deb.debian.org/debian buster-backports main' >/etc/apt/sources.list.d/backports.list
 
@@ -34,7 +39,7 @@ apt-get install -y --no-remove \
       automake \
       autotools-dev \
       bison \
-      clang-8 \
+      clang-9 \
       cmake \
       flex \
       g++ \
@@ -44,6 +49,7 @@ apt-get install -y --no-remove \
       libclang-6.0-dev \
       libclang-7-dev \
       libclang-8-dev \
+      libclang-9-dev \
       libclc-dev \
       libelf-dev \
       libepoxy-dev \
@@ -69,6 +75,7 @@ apt-get install -y --no-remove \
       llvm-6.0-dev \
       llvm-7-dev \
       llvm-8-dev \
+      llvm-9-dev \
       meson \
       pkg-config \
       python-mako \
@@ -204,6 +211,7 @@ apt-get purge -y \
       autotools-dev \
       cmake \
       git \
+      gnupg \
       libgbm-dev \
       libtool \
       unzip \
diff --git a/.gitlab-ci/container/x86_test-gl.sh b/.gitlab-ci/container/x86_test-gl.sh
index 1a717afd03a..a8fb9889c8d 100644
--- a/.gitlab-ci/container/x86_test-gl.sh
+++ b/.gitlab-ci/container/x86_test-gl.sh
@@ -5,7 +5,13 @@ set -o xtrace
 
 export DEBIAN_FRONTEND=noninteractive
 
-apt-get install -y ca-certificates
+apt-get install -y \
+        ca-certificates \
+        gnupg \
+
+# Upstream LLVM package repository
+apt-key add .gitlab-ci/container/llvm-snapshot.gpg.key
+echo "deb https://apt.llvm.org/buster/ llvm-toolchain-buster-9 main" >/etc/apt/sources.list.d/llvm9.list
 
 sed -i -e 's/http:\/\/deb/https:\/\/deb/g' /etc/apt/sources.list
 echo 'deb https://deb.debian.org/debian buster-backports main' >/etc/apt/sources.list.d/backports.list
@@ -40,7 +46,7 @@ apt-get install -y --no-remove \
       libxkbcommon-dev \
       libxrender1 \
       libxrender-dev \
-      libllvm8 \
+      libllvm9 \
       meson \
       patch \
       pkg-config \
@@ -74,6 +80,7 @@ apt-get purge -y \
       g++ \
       gcc \
       git \
+      gnupg \
       libc6-dev \
       libgbm-dev \
       libgles2-mesa-dev \
diff --git a/.gitlab-ci/container/x86_test-vk.sh b/.gitlab-ci/container/x86_test-vk.sh
index da877590de1..e1f95f300d1 100644
--- a/.gitlab-ci/container/x86_test-vk.sh
+++ b/.gitlab-ci/container/x86_test-vk.sh
@@ -5,7 +5,13 @@ set -o xtrace
 
 export DEBIAN_FRONTEND=noninteractive
 
-apt-get install -y ca-certificates
+apt-get install -y \
+        ca-certificates \
+        gnupg \
+
+# Upstream LLVM package repository
+apt-key add .gitlab-ci/container/llvm-snapshot.gpg.key
+echo "deb https://apt.llvm.org/buster/ llvm-toolchain-buster-9 main" >/etc/apt/sources.list.d/llvm9.list
 
 sed -i -e 's/http:\/\/deb/https:\/\/deb/g' /etc/apt/sources.list
 echo 'deb https://deb.debian.org/debian buster-backports main' >/etc/apt/sources.list.d/backports.list
@@ -40,7 +46,7 @@ apt-get install -y --no-remove \
       libxkbcommon-dev \
       libxrender1 \
       libxrender-dev \
-      libllvm8 \
+      libllvm9 \
       meson \
       patch \
       pkg-config \
@@ -66,6 +72,7 @@ apt-get purge -y \
       g++ \
       gcc \
       git \
+      gnupg \
       libgbm-dev \
       libgles2-mesa-dev \
       libpng-dev \