ldc-developers/ldc v1.12.0-beta1

LDC 1.12.0-beta1

on GitHub

Big news

• Frontend, druntime and Phobos are at version 2.082.0. (#2818, #2837)
  • Significant performance improvements for some transcendental std.math functions in single and double precision, at least for x86. (dlang/phobos#6272 (comment))
• LTO now basically working for Win64 too; the prebuilt package includes the required external LLD linker and the optional LTO default libs. Enable as usual with -flto=<thin|full> [-defaultlib=druntime-ldc-lto,phobos2-ldc-lto]. (#2774)
• Config file: new lib-dirs array for directories to be searched for libraries, incl. LLVM compiler-rt libraries. (#2790)

Platform support

• Supports LLVM 3.7 - 6.0.
• Windows: Supports Visual Studio/C++ Build Tools 2015 and 2017.
• Android: Native ARM packages for the Termux app are included, install one like this: dpkg -i ldc-beta_1.12.0_android-aarch64.deb. To cross-compile from a desktop OS, see the wiki.

Bug fixes

• Fix IR-based PGO on Windows (requires our LLVM fork). (#2539)
• Fix C++ class construction with D new on Posix. (#2801)
• Android: No more text relocations in Phobos zlib, required for API level 23+. (#2822, #2835)

Known issues

• 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.