Merge branch 'ldc-developers:master' into dladdr-callstack

Author: LunaTheFoxgirl

.github/actions/1-setup/action.yml

@@ -23,7 +23,7 @@ runs:
 
         packages=( \
           git-core cmake g++ \
-          libcurl4 libxml2-dev libzstd-dev \
+          libcurl4 libzstd-dev \
           curl gdb p7zip-full tzdata unzip zip python3-pip \
         )
         if [[ $arch == x86_64 ]]; then
@@ -37,30 +37,30 @@ runs:
         # Make sure to link libzstd statically
         sudo rm /usr/lib/$arch-linux-gnu/libzstd.so
 
-    - name: 'Linux: Install clang 19 from apt.llvm.org'
+    - name: 'Linux: Install clang 20 from apt.llvm.org'
       if: runner.os == 'Linux'
       shell: bash
       run: |
         set -eux
         cd ..
         curl -fL --retry 3 --max-time 30 -O https://apt.llvm.org/llvm.sh
-        sudo bash llvm.sh 19
+        sudo bash llvm.sh 20
         for tool in clang clang++ ld.lld; do
-          sudo ln -sf $tool-19 /usr/bin/$tool
+          sudo ln -sf $tool-20 /usr/bin/$tool
           $tool --version
         done
-    - name: 'macOS arm64: Install Homebrew clang 19' # see mimalloc comment in ../3-build-native/action.yml
+    - name: 'macOS arm64: Install Homebrew clang 20' # see mimalloc comment in ../3-build-native/action.yml
       if: runner.os == 'macOS' && inputs.arch == 'arm64'
       shell: bash
-      run: brew install llvm@19
-    - name: 'Windows: Install clang v19.1.3 from GitHub'
+      run: brew install llvm@20
+    - name: 'Windows: Install clang v20.1.3 from GitHub'
       if: runner.os == 'Windows'
       shell: bash
       run: |
         set -eux
         cd ..
         curl -fL --retry 3 --max-time 300 -o clang.exe \
-          https://github.com/llvm/llvm-project/releases/download/llvmorg-19.1.3/LLVM-19.1.3-win64.exe
+          https://github.com/llvm/llvm-project/releases/download/llvmorg-20.1.3/LLVM-20.1.3-win64.exe
         ./clang.exe //S # double-slash for bash
         rm clang.exe
         # C:\Program Files\LLVM\bin should already be in PATH
@@ -119,9 +119,6 @@ runs:
         sudo ln -sf ld.lld /usr/bin/ld
         ld --version
 
-    - name: Install ninja v1.12.1
-      uses: Ahajha/gha-setup-ninja@69595b0cf872acdad8ce599142fbdc88724b9a2b
-
     - name: Install D host compiler
       uses: dlang-community/setup-dlang@v1
       with:

.github/actions/3-build-cross/android-llvm-config.in

@@ -45,36 +45,36 @@ prefix=@LLVM_INSTALL_DIR@
 has_rtti=NO
 CPPFLAGS="-I${prefix}/include -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS"
 CFLAGS="${CPPFLAGS} ${CFLAGS}"
-CXXFLAGS="${CFLAGS} -std=c++17 -fno-exceptions -fno-unwind-tables -fno-asynchronous-unwind-tables"
+CXXFLAGS="${CFLAGS} -std=c++17 -fno-exceptions -funwind-tables"
 if [ "$has_rtti" != "YES" ]; then CXXFLAGS="$CXXFLAGS -fno-rtti"; fi
 LDFLAGS="-L${prefix}/lib"
 LIBFILE="${prefix}/lib/libLLVM-$version.so"
 
 components="aarch64 aarch64asmparser aarch64codegen aarch64desc aarch64disassembler aarch64info aarch64utils \
 aggressiveinstcombine all all-targets analysis arm armasmparser armcodegen armdesc armdisassembler arminfo armutils \
-asmparser asmprinter binaryformat bitreader bitstreamreader bitwriter cfguard codegen codegendata codegentypes core coroutines coverage \
+asmparser asmprinter binaryformat bitreader bitstreamreader bitwriter cfguard cgdata codegen codegentypes core coroutines coverage \
 debuginfobtf debuginfocodeview debuginfodwarf debuginfogsym debuginfologicalview debuginfomsf debuginfopdb demangle dlltooldriver dwarflinker dwarflinkerclassic dwarflinkerparallel dwp \
-engine executionengine extensions filecheck frontenddriver frontendhlsl frontendoffloading frontendopenacc frontendopenmp fuzzercli fuzzmutate globalisel hipstdpar instcombine \
+engine executionengine extensions filecheck frontendatomic frontenddriver frontendhlsl frontendoffloading frontendopenacc frontendopenmp fuzzercli fuzzmutate globalisel hipstdpar instcombine \
 instrumentation interfacestub interpreter ipo irprinter irreader jitlink libdriver lineeditor linker lto mc mca mcdisassembler \
 mcjit mcparser mirparser native nativecodegen objcarcopts objcopy object objectyaml option orcdebugging orcjit orcshared orctargetprocess \
-passes profiledata remarks runtimedyld sandboxir scalaropts selectiondag spirv spirvanalysis spirvcodegen spirvdesc spirvinfo support symbolize tablegen target targetparser textapi \
+passes profiledata remarks runtimedyld sandboxir scalaropts selectiondag spirv spirvanalysis spirvcodegen spirvdesc spirvinfo support symbolize tablegen target targetparser telemetry textapi \
 textapibinaryreader transformutils vectorize webassembly webassemblyasmparser webassemblycodegen webassemblydesc webassemblydisassembler \
 webassemblyinfo webassemblyutils windowsdriver windowsmanifest x86 x86asmparser x86codegen x86desc x86disassembler x86info \
 x86targetmca xray"
-static_libs="-lLLVMWindowsManifest -lLLVMXRay -lLLVMLibDriver -lLLVMDlltoolDriver -lLLVMTextAPIBinaryReader -lLLVMCoverage -lLLVMLineEditor \
--lLLVMSandboxIR -lLLVMSPIRVCodeGen -lLLVMSPIRVDesc -lLLVMSPIRVInfo -lLLVMSPIRVAnalysis \
--lLLVMX86TargetMCA -lLLVMX86Disassembler -lLLVMX86AsmParser -lLLVMX86CodeGen -lLLVMX86Desc -lLLVMX86Info -lLLVMWebAssemblyDisassembler \
+static_libs="-lLLVMWindowsManifest -lLLVMXRay -lLLVMLibDriver -lLLVMDlltoolDriver -lLLVMTelemetry -lLLVMTextAPIBinaryReader -lLLVMCoverage -lLLVMLineEditor \
+-lLLVMX86TargetMCA -lLLVMX86Disassembler -lLLVMX86AsmParser -lLLVMX86CodeGen -lLLVMX86Desc -lLLVMX86Info \
+-lLLVMSPIRVCodeGen -lLLVMSPIRVDesc -lLLVMSPIRVInfo -lLLVMSPIRVAnalysis -lLLVMWebAssemblyDisassembler \
 -lLLVMWebAssemblyAsmParser -lLLVMWebAssemblyCodeGen -lLLVMWebAssemblyUtils -lLLVMWebAssemblyDesc -lLLVMWebAssemblyInfo -lLLVMARMDisassembler \
 -lLLVMARMAsmParser -lLLVMARMCodeGen -lLLVMARMDesc -lLLVMARMUtils -lLLVMARMInfo -lLLVMAArch64Disassembler \
 -lLLVMAArch64AsmParser -lLLVMAArch64CodeGen -lLLVMAArch64Desc -lLLVMAArch64Utils -lLLVMAArch64Info -lLLVMOrcDebugging -lLLVMOrcJIT \
 -lLLVMWindowsDriver -lLLVMMCJIT -lLLVMJITLink -lLLVMInterpreter -lLLVMExecutionEngine -lLLVMRuntimeDyld -lLLVMOrcTargetProcess -lLLVMOrcShared \
 -lLLVMDWP -lLLVMDebugInfoLogicalView -lLLVMDebugInfoGSYM -lLLVMOption -lLLVMObjectYAML -lLLVMObjCopy -lLLVMMCA \
 -lLLVMMCDisassembler -lLLVMLTO -lLLVMPasses -lLLVMHipStdPar -lLLVMCFGuard -lLLVMCoroutines -lLLVMipo \
--lLLVMVectorize -lLLVMLinker -lLLVMInstrumentation -lLLVMFrontendOpenMP -lLLVMFrontendOffloading -lLLVMFrontendOpenACC -lLLVMFrontendHLSL -lLLVMFrontendDriver -lLLVMExtensions \
--lLLVMDWARFLinkerParallel -lLLVMDWARFLinkerClassic -lLLVMDWARFLinker -lLLVMCodeGenData -lLLVMGlobalISel -lLLVMMIRParser -lLLVMAsmPrinter -lLLVMSelectionDAG \
--lLLVMCodeGen -lLLVMTarget -lLLVMObjCARCOpts -lLLVMCodeGenTypes -lLLVMIRPrinter -lLLVMInterfaceStub -lLLVMFileCheck -lLLVMFuzzMutate \
+-lLLVMVectorize -lLLVMSandboxIR -lLLVMLinker -lLLVMInstrumentation -lLLVMFrontendOpenMP -lLLVMFrontendOffloading -lLLVMFrontendOpenACC -lLLVMFrontendHLSL -lLLVMFrontendDriver -lLLVMFrontendAtomic -lLLVMExtensions \
+-lLLVMDWARFLinkerParallel -lLLVMDWARFLinkerClassic -lLLVMDWARFLinker -lLLVMGlobalISel -lLLVMMIRParser -lLLVMAsmPrinter -lLLVMSelectionDAG \
+-lLLVMCodeGen -lLLVMTarget -lLLVMObjCARCOpts -lLLVMCodeGenTypes -lLLVMCGData -lLLVMIRPrinter -lLLVMInterfaceStub -lLLVMFileCheck -lLLVMFuzzMutate \
 -lLLVMScalarOpts -lLLVMInstCombine -lLLVMAggressiveInstCombine -lLLVMTransformUtils -lLLVMBitWriter -lLLVMAnalysis \
--lLLVMProfileData -lLLVMSymbolize -lLLVMDebugInfoBTF -lLLVMDebugInfoPDB -lLLVMDebugInfoMSF -lLLVMDebugInfoDWARF -lLLVMObject -lLLVMTextAPI -lLLVMMCParser -lLLVMIRReader -lLLVMAsmParser -lLLVMMC -lLLVMDebugInfoCodeView \
+-lLLVMProfileData -lLLVMSymbolize -lLLVMDebugInfoBTF -lLLVMDebugInfoPDB -lLLVMDebugInfoMSF -lLLVMDebugInfoCodeView -lLLVMDebugInfoDWARF -lLLVMObject -lLLVMTextAPI -lLLVMMCParser -lLLVMIRReader -lLLVMAsmParser -lLLVMMC \
 -lLLVMBitReader -lLLVMFuzzerCLI -lLLVMCore -lLLVMRemarks -lLLVMBitstreamReader -lLLVMBinaryFormat -lLLVMTargetParser -lLLVMTableGen -lLLVMSupport \
 -lLLVMDemangle"
 shared_libs="-lLLVM-$version"

.github/actions/6-integration-test/action.yml

@@ -45,8 +45,9 @@ runs:
       run: |
         set -eux
         cd ..
-        if type -P apk &>/dev/null; then
-          exit 0 # Alpine: disabled dynamic-compile support
+        if ! ls installed/lib/*ldc-jit-rt* &>/dev/null; then
+          echo "ldc-jit-rt library not found, skipping test"
+          exit 0
         fi
         if [[ '${{ runner.os }}' == Windows ]]; then
           # add ldc-jit.dll dir to PATH

.github/actions/merge-windows/action.yml

@@ -68,8 +68,6 @@ runs:
         ldc2-multilib\bin\ldc2 -link-defaultlib-shared -m32 -run hello.d || exit /b
 
     # preliminary arm64 cross-compilation support
-    - name: Install ninja v1.12.1
-      uses: Ahajha/gha-setup-ninja@69595b0cf872acdad8ce599142fbdc88724b9a2b
     - name: Set VSDIR env variable
       shell: bash
       run: echo "VSDIR=$(vswhere -latest -property installationPath)" >> $GITHUB_ENV

.github/workflows/main.yml

@@ -14,7 +14,7 @@ concurrency:
   cancel-in-progress: true
 
 env:
-  LLVM_VERSION: 19.1.7
+  LLVM_VERSION: 20.1.5
 
 jobs:
   build-native:
@@ -82,11 +82,11 @@ jobs:
             with_pgo: true
 
           - job_name: macOS arm64
-            os: macos-14
+            os: macos-15
             arch: arm64
             extra_cmake_flags: >-
-              -DCMAKE_C_COMPILER=/opt/homebrew/opt/llvm@19/bin/clang
-              -DCMAKE_CXX_COMPILER=/opt/homebrew/opt/llvm@19/bin/clang++
+              -DCMAKE_C_COMPILER=/opt/homebrew/opt/llvm@20/bin/clang
+              -DCMAKE_CXX_COMPILER=/opt/homebrew/opt/llvm@20/bin/clang++
               -DD_COMPILER_FLAGS="-O -flto=full -defaultlib=phobos2-ldc-lto,druntime-ldc-lto -L-exported_symbol '-L__*' -L-w"
               -DEXTRA_CXXFLAGS=-flto=full
             with_pgo: true
@@ -159,9 +159,6 @@ jobs:
         uses: ./.github/actions/helper-build-gdb
         with:
           arch: ${{ matrix.arch }}
-      - name: 'macOS arm64: Switch to Xcode 16'
-        if: runner.os == 'macOS' && matrix.arch == 'arm64'
-        run: sudo xcode-select -switch /Applications/Xcode_16.1.app
       - name: Build bootstrap LDC
         uses: ./.github/actions/2-build-bootstrap
         with:

.github/workflows/supported_llvm_versions.yml

@@ -19,11 +19,16 @@ jobs:
       fail-fast: false
       matrix:
         include:
+          - job_name: Ubuntu 24.04, LLVM 19, latest LDC beta
+            os: ubuntu-24.04
+            host_dc: ldc-beta
+            llvm_version: 19
+            cmake_flags: -DRT_SUPPORT_SANITIZERS=ON
           - job_name: Ubuntu 24.04, LLVM 18, bootstrap LDC
             os: ubuntu-24.04
             host_dc: ldc-1.19.0
             llvm_version: 18
-            cmake_flags: -DRT_SUPPORT_SANITIZERS=ON -DPHOBOS_SYSTEM_ZLIB=ON
+            cmake_flags: -DBUILD_SHARED_LIBS=OFF -DPHOBOS_SYSTEM_ZLIB=ON
           - job_name: macOS 14, LLVM 17, latest LDC beta
             os: macos-14
             host_dc: ldc-beta
@@ -49,8 +54,6 @@ jobs:
         with:
           submodules: true
           fetch-depth: 50
-      - name: Install ninja
-        uses: symmetryinvestments/gha-setup-ninja@v2
       - name: Install D host compiler
         uses: dlang-community/setup-dlang@v1
         with:

CHANGELOG.md

@@ -1,15 +1,40 @@
 # LDC master
 
 #### Big news
-- Frontend, druntime and Phobos are at version [2.111.0+](https://dlang.org/changelog/2.111.0.html). (#4877, #4910, #4918)
+- **Breaking change for dcompute**: The special `@kernel` UDA is now a function and _**requires**_ parentheses as in `@kernel() void foo(){}`. Optionally you can provide launch dimensions, `@kernel([2,4,8])`, to specify to the compute runtime how the kernel is intended to be launched. 
+
+#### Platform support
+
+#### Bug fixes
+
+# LDC 1.41.0 (2025-06-07)
+
+#### Big news
+- Frontend, druntime and Phobos are at version [2.111.0+](https://dlang.org/changelog/2.111.0.html). (#4877, #4910, #4918, #4941)
+- Support for [LLVM 20](https://releases.llvm.org/20.1.0/docs/ReleaseNotes.html). The prebuilt packages use v20.1.5. (#4843, #4911, #4935)
+  - The dynamic-compile (JIT) feature has regressed with LLVM 20. Use LLVM 18 or 19 for that feature.
 - Keep frame pointers by default with `-O` for some targets, notably AArch64 (except Windows), x86_64 (except Windows and glibc Linux), Windows x86, and Android. This fixes druntime backtraces with optimized code (incl. prebuilt druntime/Phobos). (#4889)
 - The prebuilt (non-musl) Linux packages are now generated on Ubuntu 22.04; the minimum glibc version has accordingly been raised from v2.31 to v2.35. (#4893)
+- druntime: Optimize `core.int128` via inline IR/assembly. (#4892)
+- Follow clang wrt. unwind tables emission, enabling them for most popular targets. (#4888)
 - ldc2.conf: Arrays can now be appended to via the `~=` operator. (#4848, #4856)
 - New `--installWithSuffix` command-line option for the `ldc-build-runtime` tool, to simplify copying the libraries to an existing LDC installation. (#4870)
+- CMake changes (for building LDC itself):
+  - Minimum CMake version bumped to v3.16. (#4898)
+  - macOS: Fix weird linker error when running CMake the first time. (#3901, #4926)
+  - Reworked integration of the LLVM compiler-rt libraries. Package maintainers may want to see [docs/compiler_rt.md](https://github.com/ldc-developers/ldc/blob/master/docs/compiler_rt.md). (#4665)
+  - Somewhat simplify separate compiler and runtime builds, incl. cross-compiling LDC itself. (#4872)
 
 #### Platform support
+- Supports LLVM 15 - 20.
+- RISC-V: Fiber context switching is now implemented natively. (#4867)
 
 #### Bug fixes
+- Prebuilt macOS packages: Fix `ldmd2` and other bundled executables crashing on macOS v15.4. (#4899, #4912)
+- ImportC: Run C preprocessor in C11 mode. (#4933)
+- ImportC Windows: Disable clang headers when C-preprocessing with `clang-cl`. (#4934)
+- Fix ICE on invalid constant address-of expressions. (#4938, #4939)
+- Allow Unicode in fully qualified label names. (#4927, #4929)
 
 # LDC 1.40.1 (2025-03-20)
 

CMakeLists.txt

@@ -457,8 +457,11 @@ option(LDC_DYNAMIC_COMPILE_USE_CUSTOM_PASSES "Use custom LDC passes in jit" ON)
 if(LDC_DYNAMIC_COMPILE STREQUAL "AUTO")
     if(LDC_LLVM_VER LESS 1800)
         set(LDC_DYNAMIC_COMPILE OFF)
-    else()
+    # FIXME: dynamic-compile regressions with LLVM 20
+    elseif(LDC_LLVM_VER LESS 2000)
         set(LDC_DYNAMIC_COMPILE ON)
+    else()
+        set(LDC_DYNAMIC_COMPILE OFF)
     endif()
 endif()
 # https://llvm.org/docs/JITLink.html for the list of supported platforms

dmd/cparse.d

@@ -3437,6 +3437,11 @@ final class CParser(AST) : Parser!AST
                         cparseParens();
                 }
             }
+            else if (token.value == TOK._Noreturn)
+            {
+                specifier.noreturn = true;
+                nextToken();
+            }
             else if (token.value == TOK.restrict) // ImportC assigns no semantics to `restrict`, so just ignore the keyword.
                 nextToken();
             else

dmd/expressionsem.d

@@ -5672,7 +5672,6 @@ private extern (C++) final class ExpressionSemanticVisitor : Visitor
             s = "__funcliteral";
 
         DsymbolTable symtab;
-        string parentMangle;
         if (FuncDeclaration func = sc.parent.isFuncDeclaration())
         {
             if (func.localsymtab is null)
@@ -5682,7 +5681,6 @@ private extern (C++) final class ExpressionSemanticVisitor : Visitor
                 func.localsymtab = new DsymbolTable();
             }
             symtab = func.localsymtab;
-            parentMangle = cast(string) mangleExact(func).toDString();
         }
         else
         {
@@ -5695,13 +5693,9 @@ private extern (C++) final class ExpressionSemanticVisitor : Visitor
                 sds.symtab = new DsymbolTable();
             }
             symtab = sds.symtab;
-
-            OutBuffer buf;
-            mangleToBuffer(sds, buf);
-            parentMangle = buf.extractSlice();
         }
         assert(symtab);
-        Identifier id = Identifier.generateIdWithLoc(s, exp.loc, parentMangle);
+        Identifier id = Identifier.generateIdWithLoc(s, exp.loc, cast(const void*) sc.parent);
         exp.fd.ident = id;
         if (exp.td)
             exp.td.ident = id;