LDC 1.1.0

(Changes from 1.1.0-beta6 release are marked with (new).)

Big news

• Frontend, druntime and Phobos are at version 2.071.2.
• Link-Time Optimization (LTO) with -flto={thin|full} (LLVM ≥ 3.9). LTO requires linker support and is therefore currently only supported on Linux (ld.gold with LLVM plugin) and OS X. For more details, please refer to LLVM's and Clang's documentation, for example Clang's ThinLTO documentation. (#1840)
• Experimental cross-module inlining (#1577, enable with -enable-cross-module-inlining)
• Profile-guided optimization (PGO) (#1219)
• Windows: enable C-style DLL exports/imports via export (functions only) (#1856)
• Experimental IR-to-obj caching with -cache=<cache dir> (#1572, #1753, #1812, #1893)
• Accept bitcode files on commandline (#1539)
• @ldc.attributes.fastmath for aggressive math optimization (#1472, #1438)
• Binary distribution now bundles DUB (v1.2.0) (#1573)
• Breaking changes to command-line semantics (see http://forum.dlang.org/post/ubobkfmsspbsmjunosna@forum.dlang.org).

New features

• New traits __traits(targetCPU) and __traits(targetHasFeature, ) (#1434)
• Drastic reduction of large symbol name lengths with optional -hash-threshold (#1445)
• @ldc.attributes.optStrategy(...) for per-function optimization setting (#1637)
• Extend intrinsic llvm_memory_fence for single-thread fences (#1837)
• Add function instrumentation and profiling options via -finstrument-functions (#1845)
• Add line-tables-only debuginfo via -gline-tables-only (#1861)
• Implement DMD-compatible -betterC (#1872)

Platform support

• Supports LLVM 3.5 - 3.9 and current 4.0 release candidate.
• ABI fixes, mainly for PowerPC targets. For bootstrapping, make sure to use source branch ltsmaster or the latest 0.17.x release, as all existing LDC releases ≥ 1.0 for PowerPC are unusable. (#1905)
• 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)
• Linux: changed default to fully relocatable, position independent code (PIC). Change back to non-relocatable with -relocation-model=static. (#1664)

Bug fixes

• Potential crash when generating debuginfos for nested variables AND optimizing (#1933, #1963, #1984) (new)
• Alignment and size of critical sections, causing crashes on ARM (#1955, #1956) (new)
• -finstrument-functions using wrong return address (#1961) (new)
• Response files expanded too late, preventing cross-compilation on Windows when using dub (#1941, #1942) (new)
• Non-Windows x86_64 ABI bug wrt. returning static arrays (#1925, #1938) (new)
• Some array literals wrongly promoted to constants (#1924, #1927) (new)
• Misc. DUB regressions introduced by beta 3 (#1819)
  • Don't output static libs (with relative target filename) in -od objects directory (for LDC, but continue to do so for LDMD, for DMD compatibility).
  • LDMD: avoid object file collisions (due to multiple D source files with identical name in different dirs) when creating a static lib and remove the object files on success, mimicking DMD.
  • Create output directories recursively.
• Potential ICE when building vibe.d projects (#1741)
• ICE when calling an abstract function. (#1822)
• ICE for invalid __asm constraints. (#802)
• Wrong code for LLVM inline assembly returning a tuple (__asmtuple). (#1823)
• Potential ICE wrt. captured variables. (#1864)
• ARM: ICE when using LTO. (#1860)
• Union layout and initialization, fixing the compilation of DMD (#1846, fixing most cases of #1829)
• Allow custom file extension for .ll/.bc./.s output files. (#1843)
• Windows: produced binaries with debuginfos are now large-address-aware too. (#442, #1876)
• Fix debuginfos for parameters. (#1816)
• Allow alignment of global variables < pointer size. (#1825)
• Promote more immutable array literals to LLVM constants. (#506, #1821, #1838)
• ICE when incrementing a complex variable. (#1806)
• llvm.va_start not matched with llvm.va_end (#1744)
• ldmd2 ignores -od option for libraries. (#1724)
• ICE: toConstElem(CastExp) doesn't support NewExp as cast source. (#1723)
• Mark runtime intrinsic shims as pragma(inline, true). (#1715)
• pragma(inline, false) is incompatible with store/loadUnaligned. (#1711)
• ICE: function not fully analyzed; previous unreported errors compiling std.variant.VariantN!(16LU, int, string).VariantN.__xopEquals? (#1698)
• Segfault at at ldc/ldc-1.1.0/driver/main.cpp:1351. (#1696)
• Make sure MSVC Build Tools are automatically detected by LDC. (#1690)
• Update Windows README.txt. (#1689)
• [ldc2-1.1.0-beta2] Missing symbol with inlining enabled. (#1678)
• [REG ldc-1.1.0-beta2] ICE with templated classes. (#1677)
• FreeBSD: Fix shared library build, working Hello World. (#1673)
• Strange compile time error. (#1638)
• LDC+DUB on Windows: folder separator is ignored. (#1621)
• Fix evaluation order issues. (#1620, #1623)
• Ubuntu 16.10 linker failures due to PIE by default (relocation R_X86_64_32S … can not be used). (#1618)
• ICE on returning struct with zero-length static array. (#1611)
• Debug info generation fixes for LLVM >= 3.8. (#1598)
• ICE after return in the middle of a function on Win64/MSVC. (#1582)
• Enums with referenced struct members result in floating point error. (#1581)
• pragma(inline, {true|false}) is no longer ignored (#1577)
• 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)
• Add suffix to LTO linker plugin name to disambiguate with LLVM installation. (#1898)

Building LDC

• LDC now requires a preinstalled D compiler. (Versions 0.17.* and the ltsmaster branch can be used to 'bootstrap' a build when only a C++ compiler is available.)
• On Unix-like systems we now use gcc for linking. (#1594)

Internals

• optimizer: Skip adding verifier function pass if -disable-verify is given. (#1591)
• DValue refactoring. (#1562)
• Several improvements to generated IR. (#1528, #1630)
• The vtable's of inherited interfaces are now put between the class's _monitor field and the user data fields. (https://issues.dlang.org/show_bug.cgi?id=15644)

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.

LDC 1.1.0 beta 6

Note: This release is what 1.1.0-beta4 should have been and gets rid of a LTO linker plugin issue (#1897, #1901) and a vtable-related regression (#1906). Some ABI fixes (PPC64) also made it into beta 6, see below.

(Changes from 1.1.0-beta3 release are marked with (new) and gone.)

Big news

• Frontend, druntime and Phobos are at version 2.071.2.
• Link-Time Optimization (LTO) with -flto={thin|full} (LLVM ≥ 3.9). LTO requires linker support and is therefore currently only supported on Linux (ld.gold with LLVM plugin) and OS X. For more details, please refer to LLVM's and Clang's documentation, for example Clang's ThinLTO documentation. (#1840) (new)
• Windows: enable C-style DLL exports/imports via export (functions only) (#1856) (new)
• Experimental cross-module inlining (#1577, enable with -enable-cross-module-inlining)
• Profile-guided optimization (PGO) (#1219)
• Experimental IR-to-obj caching with -ir2obj-cache=<cache dir> -cache=<cache dir> (#1572, #1753, #1812, #1893)
• Accept bitcode files on commandline (#1539)
• @ldc.attributes.fastmath for aggressive math optimization (#1472, #1438)
• Binary distribution now bundles DUB (v1.1.1) (#1573)
• Breaking changes to command-line semantics (see http://forum.dlang.org/post/ubobkfmsspbsmjunosna@forum.dlang.org).

New features

• New traits __traits(targetCPU) and __traits(targetHasFeature, ) (#1434)
• Drastic reduction of large symbol name lengths with optional -hash-threshold (#1445)
• @ldc.attributes.optStrategy(...) for per-function optimization setting (#1637)
• Extend intrinsic llvm_memory_fence for single-thread fences (#1837) (new)
• Add function instrumentation and profiling options via -finstrument-functions (#1845) (new)
• Add line-tables-only debuginfo via -gline-tables-only (#1861) (new)
• Implement DMD-compatible -betterC (#1872) (new)

Platform support

• Supports LLVM 3.5 - 3.9 and current trunk (4.0).
• ABI fixes, mainly for PowerPC targets. For bootstrapping, make sure to use source branch ltsmaster or the latest 0.17.x release, as all existing LDC releases ≥ 1.0 for PowerPC are unusable. (#1905) (new)
• 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)
• Linux: changed default to fully relocatable, position independent code (PIC). Change back to non-relocatable with -relocation-model=static. (#1664)

Bug fixes

• Misc. DUB regressions introduced by beta 3 (#1819) (new)
  • Don't output static libs (with relative target filename) in -od objects directory (for LDC, but continue to do so for LDMD, for DMD compatibility).
  • LDMD: avoid object file collisions (due to multiple D source files with identical name in different dirs) when creating a static lib and remove the object files on success, mimicking DMD.
  • Create output directories recursively.
• Potential ICE when building vibe.d projects (#1741) (new)
• ICE when calling an abstract function. (#1822) (new)
• ICE for invalid __asm constraints. (#802) (new)
• Wrong code for LLVM inline assembly returning a tuple (__asmtuple). (#1823) (new)
• Potential ICE wrt. captured variables. (#1864) (new)
• ARM: ICE when using LTO. (#1860) (new)
• Union layout and initialization, fixing the compilation of DMD (#1846, fixing most cases of #1829) (new)
• Allow custom file extension for .ll/.bc./.s output files. (#1843) (new)
• Windows: produced binaries with debuginfos are now large-address-aware too. (#442, #1876) (new)
• Fix debuginfos for parameters. (#1816) (new)
• Allow alignment of global variables < pointer size. (#1825) (new)
• Promote more immutable array literals to LLVM constants. (#506, #1821, #1838) (new)
• ICE when incrementing a complex variable. (#1806)
• llvm.va_start not matched with llvm.va_end (#1744)
• ldmd2 ignores -od option for libraries. (#1724)
• ICE: toConstElem(CastExp) doesn't support NewExp as cast source. (#1723)
• Mark runtime intrinsic shims as pragma(inline, true). (#1715)
• pragma(inline, false) is incompatible with store/loadUnaligned. (#1711)
• ICE: function not fully analyzed; previous unreported errors compiling std.variant.VariantN!(16LU, int, string).VariantN.__xopEquals? (#1698)
• Segfault at at ldc/ldc-1.1.0/driver/main.cpp:1351. (#1696)
• Make sure MSVC Build Tools are automatically detected by LDC. (#1690)
• Update Windows README.txt. (#1689)
• [ldc2-1.1.0-beta2] Missing symbol with inlining enabled. (#1678)
• [REG ldc-1.1.0-beta2] ICE with templated classes. (#1677)
• FreeBSD: Fix shared library build, working Hello World. (#1673)
• Strange compile time error. (#1638)
• LDC+DUB on Windows: folder separator is ignored. (#1621)
• Fix evaluation order issues. (#1620, #1623)
• Ubuntu 16.10 linker failures due to PIE by default (relocation R_X86_64_32S … can not be used). (#1618)
• ICE on returning struct with zero-length static array. (#1611)
• Debug info generation fixes for LLVM >= 3.8. (#1598)
• ICE after return in the middle of a function on Win64/MSVC. (#1582)
• Enums with referenced struct members result in floating point error. (#1581)
• pragma(inline, {true|false}) is no longer ignored (#1577)
• 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)
• Add suffix to LTO linker plugin name to disambiguate with LLVM installation. (#1898) (new)

Building LDC

• LDC now requires a preinstalled D compiler. (Versions 0.17.* and the ltsmaster branch can be used to 'bootstrap' a build when only a C++ compiler is available.)
• On Unix-like systems we now use gcc for linking. (#1594)

Internals

• optimizer: Skip adding verifier function pass if -disable-verify is given. (#1591)
• DValue refactoring. (#1562)
• Several improvements to generated IR. (#1528, #1630)
• The vtable's of inherited interfaces are now put between the class's _monitor field and the user data fields. (https://issues.dlang.org/show_bug.cgi?id=15644)

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.

LDC 1.1.0 beta 5

(Note: The only difference to 1.1.0-beta4 is a change to the installed LTO linker plugin name and directory to disambiguate with a system-wide LLVM installation. Changes from 1.1.0-beta3 release are marked with (new) and gone.)

Big news

• Frontend, druntime and Phobos are at version 2.071.2.
• Link-Time Optimization (LTO) with -flto={thin|full} (LLVM >= 3.9). LTO requires linker support and is therefore currently only supported on Linux (ld.gold with plugin support) and OS X. For more details, please refer to LLVM's and Clang's documentation, for example Clang's ThinLTO documentation. (#1840) (new)
• Windows: enable C-style DLL exports/imports via export (functions only) (#1856) (new)
• Experimental cross-module inlining (#1577, enable with -enable-cross-module-inlining)
• Profile-guided optimization (PGO) (#1219)
• Experimental IR-to-obj caching with -ir2obj-cache=<cache dir> -cache=<cache dir> (#1572, #1753, #1812, #1893)
• Accept bitcode files on commandline (#1539)
• @ldc.attributes.fastmath for aggressive math optimization (#1472, #1438)
• Binary distribution now bundles DUB (v1.1.1-beta.1) (#1573)
• Breaking changes to command-line semantics (see http://forum.dlang.org/post/ubobkfmsspbsmjunosna@forum.dlang.org).

New features

• New traits __traits(targetCPU) and __traits(targetHasFeature, ) (#1434)
• Drastic reduction of large symbol name lengths with optional -hash-threshold (#1445)
• @ldc.attributes.optStrategy(...) for per-function optimization setting (#1637)
• Extend intrinsic llvm_memory_fence for single-thread fences (#1837) (new)
• Add function instrumentation and profiling options via -finstrument-functions (#1845) (new)
• Add line-tables-only debuginfo via -gline-tables-only (#1861) (new)
• Implement DMD-compatible -betterC (#1872) (new)

Platform support

• Supports LLVM 3.5 - 3.9 and current trunk (4.0).
• 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)
• Linux: changed default to fully relocatable, position independent code (PIC). Change back to non-relocatable with -relocation-model=static. (#1664)

Bug fixes

• Misc. DUB regressions introduced by beta 3 (#1819) (new)
  • Don't output static libs (with relative target filename) in -od objects directory (for LDC, but continue to do so for LDMD, for DMD compatibility).
  • LDMD: avoid object file collisions (due to multiple D source files with identical name in different dirs) when creating a static lib and remove the object files on success, mimicking DMD.
  • Create output directories recursively.
• Potential ICE when building vibe.d projects (#1741) (new)
• ICE when calling an abstract function. (#1822) (new)
• ICE for invalid __asm constraints. (#802) (new)
• Wrong code for LLVM inline assembly returning a tuple (__asmtuple). (#1823) (new)
• Potential ICE wrt. captured variables. (#1864) (new)
• ARM: ICE when using LTO. (#1860) (new)
• Union layout and initialization, fixing the compilation of DMD (#1846, fixing most cases of #1829) (new)
• Allow custom file extension for .ll/.bc./.s output files. (#1843) (new)
• Windows: produced binaries with debuginfos are now large-address-aware too. (#442, #1876) (new)
• Fix debuginfos for parameters. (#1816) (new)
• Allow alignment of global variables < pointer size. (#1825) (new)
• Promote more immutable array literals to LLVM constants. (#506, #1821, #1838) (new)
• ICE when incrementing a complex variable. (#1806)
• llvm.va_start not matched with llvm.va_end (#1744)
• ldmd2 ignores -od option for libraries. (#1724)
• ICE: toConstElem(CastExp) doesn't support NewExp as cast source. (#1723)
• Mark runtime intrinsic shims as pragma(inline, true). (#1715)
• pragma(inline, false) is incompatible with store/loadUnaligned. (#1711)
• ICE: function not fully analyzed; previous unreported errors compiling std.variant.VariantN!(16LU, int, string).VariantN.__xopEquals? (#1698)
• Segfault at at ldc/ldc-1.1.0/driver/main.cpp:1351. (#1696)
• Make sure MSVC Build Tools are automatically detected by LDC. (#1690)
• Update Windows README.txt. (#1689)
• [ldc2-1.1.0-beta2] Missing symbol with inlining enabled. (#1678)
• [REG ldc-1.1.0-beta2] ICE with templated classes. (#1677)
• FreeBSD: Fix shared library build, working Hello World. (#1673)
• Strange compile time error. (#1638)
• LDC+DUB on Windows: folder separator is ignored. (#1621)
• Fix evaluation order issues. (#1620, #1623)
• Ubuntu 16.10 linker failures due to PIE by default (relocation R_X86_64_32S … can not be used). (#1618)
• ICE on returning struct with zero-length static array. (#1611)
• Debug info generation fixes for LLVM >= 3.8. (#1598)
• 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)
• Add suffix to LTO linker plugin name to disambiguate with LLVM installation. (#1898) (new)

Building LDC

• LDC now requires a preinstalled D compiler. (Versions 0.17.* and the ltsmaster branch can be used to 'bootstrap' a build when only a C++ compiler is available.)
• On Unix-like systems we now use gcc for linking. (#1594)

Internals

• optimizer: Skip adding verifier function pass if -disable-verify is given. (#1591)
• DValue refactoring. (#1562)
• Several improvements to generated IR. (#1528, #1630)
• The vtable's of inherited interfaces are now put between the class's _monitor field and the user data fields. (https://issues.dlang.org/show_bug.cgi?id=15644)

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.

LDC 1.1.0 beta 4

Note: This pre-release has been immediately superseded by v1.1.0-beta5, which fixes a file name conflict with LLVM (#1897).

(Changes from 1.1.0-beta3 release are marked with (new) and gone.)

Big news

• Frontend, druntime and Phobos are at version 2.071.2.
• Link-Time Optimization (LTO) with -flto={thin|full} (LLVM >= 3.9). LTO requires linker support and is therefore currently only supported on Linux (ld.gold with plugin support) and OS X. For more details, please refer to LLVM's and Clang's documentation, for example Clang's ThinLTO documentation. (#1840) (new)
• Windows: enable C-style DLL exports/imports via export (functions only) (#1856) (new)
• Experimental cross-module inlining (#1577, enable with -enable-cross-module-inlining)
• Profile-guided optimization (PGO) (#1219)
• Experimental IR-to-obj caching with -ir2obj-cache=<cache dir> -cache=<cache dir> (#1572, #1753, #1812, #1893)
• Accept bitcode files on commandline (#1539)
• @ldc.attributes.fastmath for aggressive math optimization (#1472, #1438)
• Binary distribution now bundles DUB (v1.1.1-beta.1) (#1573)
• Breaking changes to command-line semantics (see http://forum.dlang.org/post/ubobkfmsspbsmjunosna@forum.dlang.org).

New features

• New traits __traits(targetCPU) and __traits(targetHasFeature, ) (#1434)
• Drastic reduction of large symbol name lengths with optional -hash-threshold (#1445)
• @ldc.attributes.optStrategy(...) for per-function optimization setting (#1637)
• Extend intrinsic llvm_memory_fence for single-thread fences (#1837) (new)
• Add function instrumentation and profiling options via -finstrument-functions (#1845) (new)
• Add line-tables-only debuginfo via -gline-tables-only (#1861) (new)
• Implement DMD-compatible -betterC (#1872) (new)

Platform support

• Supports LLVM 3.5 - 3.9 and current trunk (4.0).
• 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)
• Linux: changed default to fully relocatable, position independent code (PIC). Change back to non-relocatable with -relocation-model=static. (#1664)

Bug fixes

• Misc. DUB regressions introduced by beta 3 (#1819) (new)
  • Don't output static libs (with relative target filename) in -od objects directory (for LDC, but continue to do so for LDMD, for DMD compatibility).
  • LDMD: avoid object file collisions (due to multiple D source files with identical name in different dirs) when creating a static lib and remove the object files on success, mimicking DMD.
  • Create output directories recursively.
• Potential ICE when building vibe.d projects (#1741) (new)
• ICE when calling an abstract function. (#1822) (new)
• ICE for invalid __asm constraints. (#802) (new)
• Wrong code for LLVM inline assembly returning a tuple (__asmtuple). (#1823) (new)
• Potential ICE wrt. captured variables. (#1864) (new)
• ARM: ICE when using LTO. (#1860) (new)
• Union layout and initialization, fixing the compilation of DMD (#1846, fixing most cases of #1829) (new)
• Allow custom file extension for .ll/.bc./.s output files. (#1843) (new)
• Windows: produced binaries with debuginfos are now large-address-aware too. (#442, #1876) (new)
• Fix debuginfos for parameters. (#1816) (new)
• Allow alignment of global variables < pointer size. (#1825) (new)
• Promote more immutable array literals to LLVM constants. (#506, #1821, #1838) (new)
• ICE when incrementing a complex variable. (#1806)
• llvm.va_start not matched with llvm.va_end (#1744)
• ldmd2 ignores -od option for libraries. (#1724)
• ICE: toConstElem(CastExp) doesn't support NewExp as cast source. (#1723)
• Mark runtime intrinsic shims as pragma(inline, true). (#1715)
• pragma(inline, false) is incompatible with store/loadUnaligned. (#1711)
• ICE: function not fully analyzed; previous unreported errors compiling std.variant.VariantN!(16LU, int, string).VariantN.__xopEquals? (#1698)
• Segfault at at ldc/ldc-1.1.0/driver/main.cpp:1351. (#1696)
• Make sure MSVC Build Tools are automatically detected by LDC. (#1690)
• Update Windows README.txt. (#1689)
• [ldc2-1.1.0-beta2] Missing symbol with inlining enabled. (#1678)
• [REG ldc-1.1.0-beta2] ICE with templated classes. (#1677)
• FreeBSD: Fix shared library build, working Hello World. (#1673)
• Strange compile time error. (#1638)
• LDC+DUB on Windows: folder separator is ignored. (#1621)
• Fix evaluation order issues. (#1620, #1623)
• Ubuntu 16.10 linker failures due to PIE by default (relocation R_X86_64_32S … can not be used). (#1618)
• ICE on returning struct with zero-length static array. (#1611)
• Debug info generation fixes for LLVM >= 3.8. (#1598)
• 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. (Versions 0.17.* and the ltsmaster branch can be used to 'bootstrap' a build when only a C++ compiler is available.)
• On Unix-like systems we now use gcc for linking. (#1594)

Internals

• optimizer: Skip adding verifier function pass if -disable-verify is given. (#1591)
• DValue refactoring. (#1562)
• Several improvements to generated IR. (#1528, #1630)
• The vtable's of inherited interfaces are now put between the class's _monitor field and the user data fields. (https://issues.dlang.org/show_bug.cgi?id=15644)

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.

LDC 0.17.2

This is a bug fix release only. Please refer to the 0.17.0 changelog and 0.17.1 changelog for the complete set of changes in this version.

Big news

Platform support

• Support for LLVM 3.5 - 3.9.

Bug fixes

• Fixed soft float and hard float issues on ARM.
• Fixed ABI error on Linux/PPC and Linux/PPC64.
• Fixed error in core.stdc.stdarg on Linux/PPC and Linux/PPC64.
• Fixed issue with __tls_get_addr on Linux/PPC and Linux/PPC64.

Building LDC

Internals

Known issues

LDC 1.1.0 beta 3

(Changes from 1.1.0-beta2 release are marked with (new) and gone.)

Big news

• Frontend, druntime and Phobos are at version 2.071.2. (new)
• Cross-module inlining (#1577, enabled from -O2, enable with -enable-cross-module-inlining (new))
• 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, article)
• 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)
• Breaking changes to command-line semantics (See http://forum.dlang.org/post/ubobkfmsspbsmjunosna@forum.dlang.org). (new)

ABI change

• This release features an ABI change, meaning that you may run into trouble when mixing binaries/libraries compiled with 1.1.0 with binaries compiled with earlier compiler versions.
• The vtable's of inherited interfaces are now put between the class's _monitor field and the user data fields (https://issues.dlang.org/show_bug.cgi?id=15644)

Platform support

• Supports LLVM 3.5 - 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)
• Linux: changed default to fully relocatable, position independent code (PIC). Change back to non-relocatable with -relocation-model=static. (#1664)

Bug fixes

• ICE when incrementing a complex variable. (#1806) (new)
• llvm.va_start not matched with llvm.va_end (#1744) (new)
• ldmd2 ignores -od option for libraries. (#1724) (new)
• ICE: toConstElem(CastExp) doesn't support NewExp as cast source. (#1723) (new)
• Mark runtime intrinsic shims as pragma(inline, true). (#1715) (new)
• pragma(inline, false) is incompatible with store/loadUnaligned. (#1711) (new)
• ICE: function not fully analyzed; previous unreported errors compiling std.variant.VariantN!(16LU, int, string).VariantN.xopEquals? (#1698) __(new)
• Segfault at at ldc/ldc-1.1.0/driver/main.cpp:1351. (#1696) (new)
• Make sure MSVC Build Tools are automatically detected by LDC. (#1690)
• Update Windows README.txt. (#1689) (new)
• [ldc2-1.1.0-beta2] Missing symbol with inlining enabled. (#1678) (new)
• [REG ldc-1.1.0-beta2] ICE with templated classes. (#1677)
• FreeBSD: Fix shared library build, working Hello World. (#1673)
• Strange compile time error. (#1638)
• LDC+DUB on Windows: folder separator is ignored. (#1621)
• Fix evaluation order issues. (#1620, #1623)
• Ubuntu 16.10 linker failures due to PIE by default (relocation R_X86_64_32S … can not be used). (#1618)
• ICE on returning struct with zero-length static array. (#1611)
• Debug info generation fixes for LLVM >= 3.8. (#1598)
• 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. (Versions 0.17.* and the ltsmaster branch can be used to 'bootstrap' a build when only a C++ compiler is available.)
• On Unix-like systems we now use gcc for linking. (#1594)

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.

LDC 1.1.0 beta 2

(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.

LDC 1.1.0 alpha 1

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)
• 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)

Platform support

• 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

• ICE on returning struct with zero-length static array. (#1611)
• 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.

Internals

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

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.

LDC 1.0.0

(Changes from 1.0.0-beta2 release are marked with (new) and gone.)

Big news

• Frontend, druntime and Phobos are at version 2.070.2.

Platform support

• Support for LLVM 3.5 - 3.8 and preliminary support for LLVM 3.9.
• Objective-C Support. (#1419)
• ARM platform is now fully supported. (#1283, #489)
• Better support for Android. (#1447) (new)
• Preliminary support for AArch64.

Bug fixes

• Outdated Copyright notice in LICENSE file. (#1322) (new)
• libconfig.so.8 not found (ubuntu 14.04) (#1460)
• Wrong template filter on atomicOp. (#1454)
• Runtime error on synchronized(typeid(SomeInterface)) { }. (#1377)
• TypeInfo is stored read-only, but mutable from D. (#1337)
• Inline assembly regression with local variable references. (#1292)
• Compile error on Linux/PPC and Linux/PPC64 due to missing import in Phobos.

Building LDC

• LDC now requires a preinstalled D compiler.
• Building on OS X requires ld64-264 or above (shipping with Xcode 7.3). This avoid spurious crashes during exception handling. XCode 7.3.1 should be used to avoid linker errors. (#1444, #1512) (new)

Internals

• Linking against LLVM shared library is now supported.

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.

LDC 1.0.0 beta 2

(Changes from 1.0.0-alpha1 release are marked with (new) and gone.)

Big news

• Frontend, druntime and Phobos are at version 2.070.2.

Platform support

• Support for LLVM 3.8 and preliminary support for LLVM 3.9.
• Objective-C Support. (#1419)
• ARM platform is now fully supported. (#1283, #489)
• Better support for Android. (#1447) (new)
• Preliminary support for AArch64.

Bug fixes

• libconfig.so.8 not found (ubuntu 14.04) (#1460) (new)
• Wrong template filter on atomicOp. (#1454)
• Runtime error on synchronized(typeid(SomeInterface)) { }. (#1377)
• TypeInfo is stored read-only, but mutable from D. (#1337)
• Inline assembly regression with local variable references. (#1292)
• Compile error on Linux/PPC and Linux/PPC64 due to missing import in Phobos.

Building LDC

• LDC now requires a preinstalled D compiler.

Internals

• Linking against LLVM shared library is now supported.

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.