ldc-developers/ldc v1.1.0-beta2

LDC 1.1.0 beta 2

on GitHub

(Changes from 1.1.0-alpha1 release are marked with (new) and gone.)

Big news

• Frontend, druntime and Phobos are at version 2.071.1.
• Cross-module inlining (#1577, enabled from -O2, disable with -disable-cross-module-inlining)
• Profile-guided optimization (#1219, "How To" article)
• Experimental IR-to-obj caching with -ir2obj-cache=<cache dir> (#1572)
• Accept bitcode files on commandline (#1539)
• @ldc.attributes.fastmath for aggressive math optimization (#1472, #1438)
• New traits __traits(targetCPU) and __traits(targetHasFeature, ) (#1434)
• Binary distribution now bundles DUB (#1573)
• Drastic reduction of large symbol name lengths with -hash-threshold (#1445)
• @ldc.attributes.optStrategy(...) for per-function optimization setting (#1637) (new)

Platform support

• Support for LLVM 3.9.
• Added ARM assembly code for Phobos std.bigint (ldc-developers/phobos#31)
• Added some definitions for OpenBSD (ldc-developers/druntime@1ef8322)
• Updates for Solaris (ldc-developers/druntime#71, ldc-developers/druntime#72, ldc-developers/druntime#73, ldc-developers/druntime#74, ldc-developers/druntime#75, ldc-developers/druntime#79)

Bug fixes

• Strange compile time error. (#1638) (new)
• LDC+DUB on Windows: folder separator is ignored. (#1621) (new)
• Fix evaluation order issues. (#1620, #1623) (new)
• ICE on returning struct with zero-length static array. (#1611)
• Debug info generation fixes for LLVM >= 3.8. (#1598) (new)
• ICE after return in the middle of a function on Win64/MSVC. (#1582)
• Enums with referenced struct members result in floating point error. (#1581)
• Static array initialization with single element misdetected as direct construction via sret. (#1548)
• ICE on static typeid. (#1540)
• super doesn't work. (#1450)
• Sub-expression evaluation order fixes. (#1327)

Building LDC

• LDC now requires a preinstalled D compiler.
• On Unix-like systems we now use gcc for linking. (#1594) (new)

Internals

• optimizer: Skip adding verifier function pass if -disable-verify is given. (#1591)
• DValue refactoring. (#1562)
• Several improvements to generated IR. (#1528, #1630)

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.
• Phobos does not compile on MinGW platform.