Add support for Apple Clang 15 (#997)

* Add test-results for apple-clang-15

* CI: Add support for Apple Clang 15 in CI script

Also resolves #995

* [CI] Also test Apple Clang 15

Author: danra

.github/workflows/regression-tests.yml

@@ -24,6 +24,8 @@ jobs:
         include:
           - os: ubuntu-20.04
             compiler: clang++-12
+          - os: macos-14
+            compiler: clang++
           - os: macos-13
             compiler: clang++
           - os: macos-13
@@ -41,7 +43,7 @@ jobs:
         sudo ln -s "$(brew --prefix llvm@15)/bin/clang" /usr/local/bin/clang++-15
 
     - name: Run regression tests - Linux and macOS version
-      if: startsWith(matrix.os, 'ubuntu') || matrix.os == 'macos-13'
+      if: startsWith(matrix.os, 'ubuntu') || startsWith(matrix.os, 'macos')
       run: |
         cd regression-tests
         bash run-tests.sh -c ${{ matrix.compiler }} -l ${{ matrix.os }}

regression-tests/run-tests.sh

@@ -142,6 +142,8 @@ else
     if [[ "$compiler_version" == *"Apple clang version 14.0"* ||
           "$compiler_version" == *"Homebrew clang version 15.0"* ]]; then
         exec_out_dir="$expected_results_dir/apple-clang-14"
+    elif [[ "$compiler_version" == *"Apple clang version 15.0"* ]]; then
+        exec_out_dir="$expected_results_dir/apple-clang-15"
     elif [[ "$compiler_version" == *"clang version 12.0"* ]]; then 
         exec_out_dir="$expected_results_dir/clang-12"
     elif [[ "$compiler_version" == *"clang version 15.0"* ]]; then 

regression-tests/test-results/apple-clang-15/clang-version.output

@@ -0,0 +1,4 @@
+Apple clang version 15.0.0 (clang-1500.1.0.2.5)
+Target: arm64-apple-darwin23.3.0
+Thread model: posix
+InstalledDir: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin

regression-tests/test-results/apple-clang-15/mixed-allcpp1-hello.cpp.execution

@@ -0,0 +1 @@
+Hello world

regression-tests/test-results/apple-clang-15/mixed-allcpp1-hello.cpp.output

@@ -0,0 +1,60 @@
+v as X< 0> = 0
+v as X< 1> = 1
+v as X< 2> = 2
+v as X< 3> = 3
+v as X< 4> = 4
+v as X< 5> = 5
+v as X< 6> = 6
+v as X< 7> = 7
+v as X< 8> = 8
+v as X< 9> = 9
+v as X<10> = 10
+v as X<11> = 11
+v as X<12> = 12
+v as X<13> = 13
+v as X<14> = 14
+v as X<15> = 15
+v as X<16> = 16
+v as X<17> = 17
+v as X<18> = 18
+v as X<19> = 19
+as_const(v) as X< 0> = 0
+as_const(v) as X< 1> = 1
+as_const(v) as X< 2> = 2
+as_const(v) as X< 3> = 3
+as_const(v) as X< 4> = 4
+as_const(v) as X< 5> = 5
+as_const(v) as X< 6> = 6
+as_const(v) as X< 7> = 7
+as_const(v) as X< 8> = 8
+as_const(v) as X< 9> = 9
+as_const(v) as X<10> = 10
+as_const(v) as X<11> = 11
+as_const(v) as X<12> = 12
+as_const(v) as X<13> = 13
+as_const(v) as X<14> = 14
+as_const(v) as X<15> = 15
+as_const(v) as X<16> = 16
+as_const(v) as X<17> = 17
+as_const(v) as X<18> = 18
+as_const(v) as X<19> = 19
+move(v) as X< 0> = 0
+move(v) as X< 1> = 1
+move(v) as X< 2> = 2
+move(v) as X< 3> = 3
+move(v) as X< 4> = 4
+move(v) as X< 5> = 5
+move(v) as X< 6> = 6
+move(v) as X< 7> = 7
+move(v) as X< 8> = 8
+move(v) as X< 9> = 9
+move(v) as X<10> = 10
+move(v) as X<11> = 11
+move(v) as X<12> = 12
+move(v) as X<13> = 13
+move(v) as X<14> = 14
+move(v) as X<15> = 15
+move(v) as X<16> = 16
+move(v) as X<17> = 17
+move(v) as X<18> = 18
+move(v) as X<19> = 19

regression-tests/test-results/apple-clang-15/mixed-as-for-variant-20-types.cpp.execution

@@ -0,0 +1 @@
+Bounds safety violation: out of bounds access attempt detected - attempted access at index 5, [min,max] range is [0,4]

regression-tests/test-results/apple-clang-15/mixed-as-for-variant-20-types.cpp.output

@@ -0,0 +1,5 @@
+1
+44
+45
+46
+5