Merge branch 'ci-add-debug-aarch64-linux'

.github/workflows/ci.yaml

@@ -15,16 +15,28 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v3
       - name: Build and Test
-        run: sh ./ci/linux/build-x86_64-debug.sh
-      - name: Print Version
-        run: echo "$(build-debug/stage3-debug/bin/zig version)"
+        run: sh ci/x86_64-linux-debug.sh
   x86_64-linux-release:
     runs-on: [self-hosted, Linux, x86_64]
     steps:
       - name: Checkout
         uses: actions/checkout@v3
       - name: Build and Test
-        run: sh ./ci/linux/build-x86_64-release.sh
+        run: sh ci/x86_64-linux-release.sh
+  aarch64-linux-debug:
+    runs-on: [self-hosted, Linux, aarch64]
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+      - name: Build and Test
+        run: sh ci/aarch64-linux-debug.sh
+  aarch64-linux-release:
+    runs-on: [self-hosted, Linux, aarch64]
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+      - name: Build and Test
+        run: sh ci/aarch64-linux-release.sh
   x86_64-macos:
     runs-on: "macos-11"
     env: 
@@ -33,23 +45,7 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v3
       - name: Build and Test
-        run: ./ci/macos/build-x86_64.sh
-  x86_64-windows:
-    runs-on: windows-latest
-    env: 
-      ARCH: "x86_64"
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v3
-      - name: Build and Test
-        run: ./ci/windows/build.ps1
-  aarch64-linux:
-    runs-on: [self-hosted, Linux, aarch64]
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v3
-      - name: Build and Test
-        run: sh ./ci/linux/build-aarch64.sh
+        run: ci/x86_64-macos.sh
   aarch64-macos:
     runs-on: [self-hosted, macOS, aarch64]
     env: 
@@ -58,4 +54,13 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v3
       - name: Build and Test
-        run: ./ci/macos/build-aarch64.sh
+        run: ci/aarch64-macos.sh
+  x86_64-windows:
+    runs-on: windows-latest
+    env: 
+      ARCH: "x86_64"
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+      - name: Build and Test
+        run: ci/x86_64-windows.ps1

ci/aarch64-linux-debug.sh

@@ -0,0 +1,66 @@
+#!/bin/sh
+
+# Requires cmake ninja-build
+
+set -x
+set -e
+
+ARCH="$(uname -m)"
+TARGET="$ARCH-linux-musl"
+MCPU="baseline"
+CACHE_BASENAME="zig+llvm+lld+clang-$TARGET-0.11.0-dev.256+271cc52a1"
+PREFIX="$HOME/deps/$CACHE_BASENAME"
+ZIG="$PREFIX/bin/zig"
+
+export PATH="$HOME/deps/wasmtime-v2.0.2-$ARCH-linux:$PATH"
+
+# Make the `zig version` number consistent.
+# This will affect the cmake command below.
+git config core.abbrev 9
+git fetch --unshallow || true
+git fetch --tags
+
+export CC="$ZIG cc -target $TARGET -mcpu=$MCPU"
+export CXX="$ZIG c++ -target $TARGET -mcpu=$MCPU"
+
+rm -rf build-debug
+mkdir build-debug
+cd build-debug
+cmake .. \
+  -DCMAKE_INSTALL_PREFIX="stage3-debug" \
+  -DCMAKE_PREFIX_PATH="$PREFIX" \
+  -DCMAKE_BUILD_TYPE=Debug \
+  -DZIG_TARGET_TRIPLE="$TARGET" \
+  -DZIG_TARGET_MCPU="$MCPU" \
+  -DZIG_STATIC=ON \
+  -GNinja
+
+# Now cmake will use zig as the C/C++ compiler. We reset the environment variables
+# so that installation and testing do not get affected by them.
+unset CC
+unset CXX
+
+ninja install
+
+echo "Looking for non-conforming code formatting..."
+stage3-debug/bin/zig fmt --check .. \
+  --exclude ../test/cases/ \
+  --exclude ../build-debug
+
+# simultaneously test building self-hosted without LLVM and with 32-bit arm
+stage3-debug/bin/zig build -Dtarget=arm-linux-musleabihf
+
+# TODO: add -fqemu back to this line
+
+stage3-debug/bin/zig build test docs \
+  -fwasmtime \
+  -Dstatic-llvm \
+  -Dtarget=native-native-musl \
+  --search-prefix "$PREFIX" \
+  --zig-lib-dir "$(pwd)/../lib"
+
+# Look for HTML errors.
+tidy --drop-empty-elements no -qe ../zig-cache/langref.html
+
+# Produce the experimental std lib documentation.
+stage3-debug/bin/zig test ../lib/std/std.zig -femit-docs -fno-emit-bin --zig-lib-dir ../lib

ci/x86_64-linux-debug.sh

@@ -45,8 +45,7 @@ ninja install
 echo "Looking for non-conforming code formatting..."
 stage3-debug/bin/zig fmt --check .. \
   --exclude ../test/cases/ \
-  --exclude ../build-debug \
-  --exclude ../build-release
+  --exclude ../build-debug
 
 # simultaneously test building self-hosted without LLVM and with 32-bit arm
 stage3-debug/bin/zig build -Dtarget=arm-linux-musleabihf

doc/langref.html.in

@@ -7029,8 +7029,7 @@ test "fibonacci" {
       undefined behavior, which is always a compile error if the compiler knows it happened.
       But what would have happened if we used a signed integer?
       </p>
-      {#code_begin|test_err|evaluation exceeded 1000 backwards branches#}
-      {#backend_stage1#}
+      {#code_begin|syntax#}
 const assert = @import("std").debug.assert;
 
 fn fibonacci(index: i32) i32 {
@@ -7045,13 +7044,22 @@ test "fibonacci" {
 }
       {#code_end#}
       <p>
-      The compiler noticed that evaluating this function at compile-time took a long time,
-      and thus emitted a compile error and gave up. If the programmer wants to increase
-      the budget for compile-time computation, they can use a built-in function called
-      {#link|@setEvalBranchQuota#} to change the default number 1000 to something else.
+      The compiler is supposed to notice that evaluating this function at
+      compile-time took more than 1000 branches, and thus emits an error and
+      gives up. If the programmer wants to increase the budget for compile-time
+      computation, they can use a built-in function called
+      {#link|@setEvalBranchQuota#} to change the default number 1000 to
+      something else.
       </p>
       <p>
-      What if we fix the base case, but put the wrong value in the {#syntax#}expect{#endsyntax#} line?
+      However, there is a <a href="https://github.com/ziglang/zig/issues/13724">design
+      flaw in the compiler</a> causing it to stack overflow instead of having the proper
+      behavior here. I'm terribly sorry about that. I hope to get this resolved
+      before the next release.
+      </p>
+      <p>
+      What if we fix the base case, but put the wrong value in the
+      {#syntax#}expect{#endsyntax#} line?
       </p>
       {#code_begin|test_err|reached unreachable#}
 const assert = @import("std").debug.assert;