ci: partial revert of f3f2a56859f96cee6f9bc8e8fe14b99ec653abaf

While I experiment with ways to cut down run times, run on master only.

.github/workflows/ci.yaml

@@ -68,15 +68,6 @@ jobs:
         uses: actions/checkout@v4
       - name: Build and Test
         run: sh ci/riscv64-linux-release.sh
-  riscv64-linux-releasesafe:
-    if: ${{ github.event_name == 'pull_request' }}
-    timeout-minutes: 900
-    runs-on: [self-hosted, Linux, riscv64]
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v4
-      - name: Build and Test
-        run: sh ci/riscv64-linux-releasesafe.sh
   x86_64-macos-release:
     runs-on: "macos-13"
     env:

ci/riscv64-linux-releasesafe.sh

@@ -1,76 +0,0 @@
-#!/bin/sh
-
-# Requires cmake ninja-build
-
-set -x
-set -e
-
-ARCH="$(uname -m)"
-TARGET="$ARCH-linux-musl"
-MCPU="spacemit_x60"
-CACHE_BASENAME="zig+llvm+lld+clang-riscv64-linux-musl-0.15.0-dev.929+31e46be74"
-PREFIX="$HOME/deps/$CACHE_BASENAME"
-ZIG="$PREFIX/bin/zig"
-
-export PATH="$HOME/local/bin:$PATH"
-
-# Make the `zig version` number consistent.
-# This will affect the cmake command below.
-git fetch --unshallow || true
-git fetch --tags
-
-# Override the cache directories because they won't actually help other CI runs
-# which will be testing alternate versions of zig, and ultimately would just
-# fill up space on the hard drive for no reason.
-export ZIG_GLOBAL_CACHE_DIR="$PWD/zig-global-cache"
-export ZIG_LOCAL_CACHE_DIR="$PWD/zig-local-cache"
-
-mkdir build-releasesafe
-cd build-releasesafe
-
-export CC="$ZIG cc -target $TARGET -mcpu=$MCPU"
-export CXX="$ZIG c++ -target $TARGET -mcpu=$MCPU"
-
-cmake .. \
-  -DCMAKE_INSTALL_PREFIX="stage3-releasesafe" \
-  -DCMAKE_PREFIX_PATH="$PREFIX" \
-  -DCMAKE_BUILD_TYPE=Release \
-  -DZIG_RELEASE_SAFE=ON \
-  -DZIG_TARGET_TRIPLE="$TARGET" \
-  -DZIG_TARGET_MCPU="$MCPU" \
-  -DZIG_STATIC=ON \
-  -DZIG_NO_LIB=ON \
-  -GNinja
-
-# Now cmake will use zig as the C/C++ compiler. We reset the environment variables
-# so that installation and testing do not get affected by them.
-unset CC
-unset CXX
-
-ninja install
-
-# No -fqemu and -fwasmtime here as they're covered by the x86_64-linux scripts.
-stage3-releasesafe/bin/zig build test docs \
-  --maxrss 34359738368 \
-  -Dstatic-llvm \
-  -Dskip-non-native \
-  -Dtarget=native-native-musl \
-  --search-prefix "$PREFIX" \
-  --zig-lib-dir "$PWD/../lib"
-
-# Ensure that stage3 and stage4 are byte-for-byte identical.
-stage3-releasesafe/bin/zig build \
-  --prefix stage4-releasesafe \
-  -Denable-llvm \
-  -Dno-lib \
-  -Doptimize=ReleaseSafe \
-  -Dstrip \
-  -Dtarget=$TARGET \
-  -Dcpu=$MCPU \
-  -Duse-zig-libcxx \
-  -Dversion-string="$(stage3-releasesafe/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-releasesafe/bin/zig stage4-releasesafe/bin/zig