ldc-developers/ldc v1.28.0

LDC 1.28.0

on GitHub

(Changes since 1.28.0-beta1 are marked with (new).)

Big news

• Frontend, druntime and Phobos are at version 2.098.0+. (#3821, #3839, #3844, #3852) (new)
• Windows: -dllimport=defaultLibsOnly (e.g., implied by -link-defaultlib-shared -fvisibility=hidden) doesn't require -linkonce-templates anymore. (#3816)
• dcompute: Add support for OpenCL image I/O. (#3835) (new)

Platform support

• Supports LLVM 6.0 - 12.0.

Bug fixes

• Fix dynamic casts across binary boundaries (DLLs etc.). (dlang/druntime#3543)
• Windows: Fix potentially wrongly caught exceptions due to non-unique TypeInfo_Class names. (#3520)
• Don't silently ignore invalid external tool specifications. (#3841) (new)
• LLVM v11.1: Add missing PGO ldc-profdata tool. (#3845) (new)

Known issues

• When building LDC, old LDC 0.17.*/ltsmaster host compilers miscompile LDC ≥ 1.21, leading to potential segfaults of the built LDC. Ltsmaster can still be used to bootstrap a first compiler and then let that compiler compile itself. (#3354)
• 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.