LDC 1.14.0 发布，高性能 dlang 编译器

LDC 是一个高性能的 D 语言编译器。LDC 1.14.0 新版本更新亮点如下：

• 支持 D 语言最新版本 2.084.1.

• 增强对 WebAssembly 的兼容性

• 改进 Windows 32 位系统安装包形式

• 纤程改进

• 其他稳定性提升

完整更新日志（英文）

Big news

• Frontend, druntime and Phobos are at version 2.084.1 , incl. new command-line options -mixin , -{enable,disable}-switch-errors and -checkaction . ( #2946 , #2977 , #2999 ) (new)
  • Options -release , -d-debug and -unittest don't override preceding, more specific options ( -{enable,disable}-{asserts,invariants,preconditions,postconditions,contracts} ) anymore.
• Linking WebAssembly doesn't require -link-internally (integrated LLD) anymore; an external linker (default: wasm-ld , override with -linker ) can be used as well. ( #2951 )
• Prebuilt Windows packages include LTO-able 32-bit druntime/Phobos too (previously: Win64 only).
• AddressSanitizer support for fibers (requires rebuilding the runtime libraries with CMake option RT_SUPPORT_SANITIZERS=ON ). ( #2975 , ldc-developers/druntime#152 ) (new)
• Support pragma(LDC_extern_weak) for function declarations - if the function isn't available when linking, its address is null. ( #2984 ) (new)

Platform support

• Supports LLVM 3.9 - 7.0.

Bug fixes

• Fix C++ mangling regression for functions with multiple real parameters introduced with v1.13, preventing to build DMD. ( #2954 , dlang/dmd#9129 )
• Fix context of some nested aggregates. ( #2960 , #2969 )
• Support templated LLVM intrinsics with vector arguments. ( #2962 , #2971 )
• Avoid crashes with -allinst (fix emission of only speculatively nested functions). ( #2932 , #2940 )
• Fix XRay support for LLVM 7+. ( #2965 )
• AArch64: Fix DMD-style profile measurements. ( #2950 )
• Be less picky about placement of pragmas (allow intermediate extern(C) etc.). ( #2599 )
• MSVC: Fix real C++ mangling to match Visual C++ long double . ( #2974 )
• Fix bad ICE noticed when building protobuf-d. ( #2990 , #2992 ) (new)
• Fix ICE when directly indexing vector return value. ( #2988 , #2991 ) (new)
• Fix identity comparisons of complex numbers. ( #2918 , #2993 ) (new)
• MIPS32 fix for core.stdc.stdarg . ( #2989 , ldc-developers/druntime#153 ) (new)
• Fix core.atomic.cas() for 64-bit floating-point values. ( #3000 , #3001 ) (new)
• beta1 regression: 'Instruction does not dominate all uses' ( #2996 , #2997 ) (new)

Known issues

• Buggy older ld.bfd linker versions may wrongly strip out required symbols, e.g., ModuleInfos (so that e.g. no module ctors/dtors are run). LDC defaults to ld.gold on Linux.
• LDC does not zero the padding area of a real variable. This may lead to wrong results if the padding area is also considered. See #770 . Does not apply to real members inside structs etc.