ci: add x86_64-freebsd scripts

ci/x86_64-freebsd-debug.sh

@@ -0,0 +1,71 @@
+#!/bin/sh
+
+# Requires cmake ninja-build
+
+set -x
+set -e
+
+ARCH="x86_64"
+TARGET="$ARCH-freebsd-none"
+MCPU="baseline"
+CACHE_BASENAME="zig+llvm+lld+clang-$TARGET-0.16.0-dev.312+164c598cd"
+PREFIX="$HOME/deps/$CACHE_BASENAME"
+ZIG="$PREFIX/bin/zig"
+
+# Make the `zig version` number consistent.
+# This will affect the cmake command below.
+git fetch --unshallow || true
+git fetch --tags
+
+# Override the cache directories because they won't actually help other CI runs
+# which will be testing alternate versions of zig, and ultimately would just
+# fill up space on the hard drive for no reason.
+export ZIG_GLOBAL_CACHE_DIR="$PWD/zig-global-cache"
+export ZIG_LOCAL_CACHE_DIR="$PWD/zig-local-cache"
+
+mkdir build-debug
+cd build-debug
+
+export CC="$ZIG cc -target $TARGET -mcpu=$MCPU"
+export CXX="$ZIG c++ -target $TARGET -mcpu=$MCPU"
+
+cmake .. \
+  -DCMAKE_INSTALL_PREFIX="stage3-debug" \
+  -DCMAKE_PREFIX_PATH="$PREFIX" \
+  -DCMAKE_BUILD_TYPE=Debug \
+  -DZIG_TARGET_TRIPLE="$TARGET" \
+  -DZIG_TARGET_MCPU="$MCPU" \
+  -DZIG_STATIC=ON \
+  -DZIG_NO_LIB=ON \
+  -GNinja \
+  -DCMAKE_C_LINKER_DEPFILE_SUPPORTED=FALSE \
+  -DCMAKE_CXX_LINKER_DEPFILE_SUPPORTED=FALSE
+# https://github.com/ziglang/zig/issues/22213
+
+# Now cmake will use zig as the C/C++ compiler. We reset the environment variables
+# so that installation and testing do not get affected by them.
+unset CC
+unset CXX
+
+ninja install
+
+stage3-debug/bin/zig build test docs \
+  --maxrss 32212254720 \
+  -Dstatic-llvm \
+  -Dskip-linux \
+  -Dskip-netbsd \
+  -Dskip-windows \
+  -Dskip-macos \
+  -Dtarget=native-native-none \
+  --search-prefix "$PREFIX" \
+  --zig-lib-dir "$PWD/../lib"
+
+stage3-debug/bin/zig build \
+  --prefix stage4-debug \
+  -Denable-llvm \
+  -Dno-lib \
+  -Dtarget=$TARGET \
+  -Duse-zig-libcxx \
+  -Dversion-string="$(stage3-debug/bin/zig version)"
+
+stage4-debug/bin/zig test ../test/behavior.zig

ci/x86_64-freebsd-release.sh

@@ -0,0 +1,77 @@
+#!/bin/sh
+
+# Requires cmake ninja-build
+
+set -x
+set -e
+
+ARCH="x86_64"
+TARGET="$ARCH-freebsd-none"
+MCPU="baseline"
+CACHE_BASENAME="zig+llvm+lld+clang-$TARGET-0.16.0-dev.312+164c598cd"
+PREFIX="$HOME/deps/$CACHE_BASENAME"
+ZIG="$PREFIX/bin/zig"
+
+# Make the `zig version` number consistent.
+# This will affect the cmake command below.
+git fetch --unshallow || true
+git fetch --tags
+
+# Override the cache directories because they won't actually help other CI runs
+# which will be testing alternate versions of zig, and ultimately would just
+# fill up space on the hard drive for no reason.
+export ZIG_GLOBAL_CACHE_DIR="$PWD/zig-global-cache"
+export ZIG_LOCAL_CACHE_DIR="$PWD/zig-local-cache"
+
+mkdir build-release
+cd build-release
+
+export CC="$ZIG cc -target $TARGET -mcpu=$MCPU"
+export CXX="$ZIG c++ -target $TARGET -mcpu=$MCPU"
+
+cmake .. \
+  -DCMAKE_INSTALL_PREFIX="stage3-release" \
+  -DCMAKE_PREFIX_PATH="$PREFIX" \
+  -DCMAKE_BUILD_TYPE=Release \
+  -DZIG_TARGET_TRIPLE="$TARGET" \
+  -DZIG_TARGET_MCPU="$MCPU" \
+  -DZIG_STATIC=ON \
+  -DZIG_NO_LIB=ON \
+  -GNinja \
+  -DCMAKE_C_LINKER_DEPFILE_SUPPORTED=FALSE \
+  -DCMAKE_CXX_LINKER_DEPFILE_SUPPORTED=FALSE
+# https://github.com/ziglang/zig/issues/22213
+
+# Now cmake will use zig as the C/C++ compiler. We reset the environment variables
+# so that installation and testing do not get affected by them.
+unset CC
+unset CXX
+
+ninja install
+
+stage3-release/bin/zig build test docs \
+  --maxrss 32212254720 \
+  -Dstatic-llvm \
+  -Dskip-linux \
+  -Dskip-netbsd \
+  -Dskip-windows \
+  -Dskip-macos \
+  -Dtarget=native-native-none \
+  --search-prefix "$PREFIX" \
+  --zig-lib-dir "$PWD/../lib"
+
+# Ensure that stage3 and stage4 are byte-for-byte identical.
+stage3-release/bin/zig build \
+  --prefix stage4-release \
+  -Denable-llvm \
+  -Dno-lib \
+  -Doptimize=ReleaseFast \
+  -Dstrip \
+  -Dtarget=$TARGET \
+  -Duse-zig-libcxx \
+  -Dversion-string="$(stage3-release/bin/zig version)"
+
+# diff returns an error code if the files differ.
+echo "If the following command fails, it means nondeterminism has been"
+echo "introduced, making stage3 and stage4 no longer byte-for-byte identical."
+diff stage3-release/bin/zig stage4-release/bin/zig