From e407984265db41b42fcff440a9dc0a38d261bd06 Mon Sep 17 00:00:00 2001 From: Chris Lattner Date: Tue, 13 Dec 2011 17:55:30 +0000 Subject: [PATCH] Rip llvm 3.0 out of the release notes, making room for LLVM 3.1 llvm-svn: 146493 --- docs/ReleaseNotes.html | 1022 ++-------------------------------------- 1 file changed, 39 insertions(+), 983 deletions(-) diff --git a/docs/ReleaseNotes.html b/docs/ReleaseNotes.html index 1ac15688a36..c20cf74f341 100644 --- a/docs/ReleaseNotes.html +++ b/docs/ReleaseNotes.html @@ -4,11 +4,11 @@ - LLVM 3.0 Release Notes + LLVM 3.1 Release Notes -

LLVM 3.0 Release Notes

+

LLVM 3.1 Release Notes

  • Introduction
  • Sub-project Status Update
    • -
  • External Projects Using LLVM 3.0
    • -
  • What's New in LLVM 3.0?
    • +
  • External Projects Using LLVM 3.1
    • +
  • What's New in LLVM?
  • Installation Instructions
  • Known Problems
  • Additional Information
    • @@ -29,13 +29,11 @@

    Written by the LLVM Team

    -

    @@ -46,7 +44,7 @@ Release Notes.

    This document contains the release notes for the LLVM Compiler - Infrastructure, release 3.0. Here we describe the status of LLVM, including + Infrastructure, release 3.1. Here we describe the status of LLVM, including major improvements from the previous release, improvements in various subprojects of LLVM, and some of the current users of the code. All LLVM releases may be downloaded from @@ -74,7 +72,7 @@ Release Notes.

    -

    The LLVM 3.0 distribution currently consists of code from the core LLVM +

    The LLVM 3.1 distribution currently consists of code from the core LLVM repository (which roughly includes the LLVM optimizers, code generators and supporting tools), and the Clang repository. In addition to this code, the LLVM Project includes other sub-projects that are @@ -96,49 +94,12 @@ Release Notes. production-quality compiler for C, Objective-C, C++ and Objective-C++ on x86 (32- and 64-bit), and for Darwin/ARM targets.

    -

    In the LLVM 3.0 time-frame, the Clang team has made many improvements:

    +

    In the LLVM 3.1 time-frame, the Clang team has made many improvements:

      -
    • Greatly improved support for building C++ applications, with greater - stability and better diagnostics.
      • - -
    • Improved support for - the C++ - 2011 standard (aka "C++'0x"), including implementations of non-static data member - initializers, alias templates, delegating constructors, range-based - for loops, and implicitly-generated move constructors and move assignment - operators, among others.
      • - -
    • Implemented support for some features of the upcoming C1x standard, - including static assertions and generic selections.
      • - -
    • Better detection of include and linking paths for system headers and - libraries, especially for Linux distributions.
      • - -
    • Several improvements to Objective-C support, including: - -
        -
      • - Automatic Reference Counting (ARC) and an improved memory model - cleanly separating object and C memory.
        • - -
      • A migration tool for moving manual retain/release code to ARC
        • - -
      • Better support for data hiding, allowing instance variables to be - declared in implementation contexts or class extensions
        • -
      • Weak linking support for Objective-C classes
        • -
      • Improved static type checking by inferring the return type of methods - such as +alloc and -init.
        • -
      - - Some new Objective-C features require either the Mac OS X 10.7 / iOS 5 - Objective-C runtime, or version 1.6 or later of the GNUstep Objective-C - runtime version.
      • - -
    • Implemented a number of optimizations in libclang, the Clang C - interface, to improve the performance of code completion and the mapping - from source locations to abstract syntax tree nodes.
      • +
    • ...
    -

    For more details about the changes to Clang since the 2.9 release, see the + +

    For more details about the changes to Clang since the 2.9 release, see the Clang release notes

    @@ -164,24 +125,11 @@ Release Notes. supports Ada, C, C++ and Fortran. It has partial support for Go, Java, Obj-C and Obj-C++.

    -

    The 3.0 release has the following notable changes:

    +

    The 3.1 release has the following notable changes:

      -
    • GCC version 4.6 is now fully supported.
      • -
    • Patching and building GCC is no longer required: the plugin should work - with your system GCC (version 4.5 or 4.6; on Debian/Ubuntu systems the - gcc-4.5-plugin-dev or gcc-4.6-plugin-dev package is also needed).
      • - -
    • The -fplugin-arg-dragonegg-enable-gcc-optzns option, which runs - GCC's optimizers as well as LLVM's, now works much better. This is the - option to use if you want ultimate performance! It is still experimental - though: it may cause the plugin to crash. Setting the optimization level - to -O4 when using this option will optimize even harder, though - this usually doesn't result in any improvement over -O3.
      • - -
    • The type and constant conversion logic has been almost entirely rewritten, - fixing a multitude of obscure bugs.
      • +
    • ...
    @@ -203,9 +151,7 @@ Release Notes. implementations of this and other low-level routines (some are 3x faster than the equivalent libgcc routines).

    -

    In the LLVM 3.0 timeframe, the target specific ARM code has converted to - "unified" assembly syntax, and several new functions have been added to the - library.

    +

    ....

    @@ -221,11 +167,7 @@ Release Notes. Clang parser to provide high-fidelity expression parsing (particularly for C++) and uses the LLVM JIT for target support.

    -

    LLDB has advanced by leaps and bounds in the 3.0 timeframe. It is - dramatically more stable and useful, and includes both a - new tutorial and - a side-by-side comparison with - GDB.

    +

    ...

    @@ -240,8 +182,7 @@ Release Notes. licensed under the MIT and UIUC license, allowing it to be used more permissively.

    -

    Libc++ has been ported to FreeBSD and imported into the base system. It is - planned to be the default STL implementation for FreeBSD 10.

    +

    ...

    @@ -256,71 +197,20 @@ Release Notes. implementation of a Java Virtual Machine (Java VM or JVM) that uses LLVM for static and just-in-time compilation. -

    In the LLVM 3.0 time-frame, VMKit has had significant improvements on both +

    In the LLVM 3.1 time-frame, VMKit has had significant improvements on both runtime and startup performance:

    - - -

    -LLBrowse: IR Browser -

    - -
    - -

    - LLBrowse is an interactive viewer for LLVM modules. It can load any LLVM - module and displays its contents as an expandable tree view, facilitating an - easy way to inspect types, functions, global variables, or metadata nodes. It - is fully cross-platform, being based on the popular wxWidgets GUI - toolkit.

    - -
    - - - - -

    - External Open Source Projects Using LLVM 3.0 + External Open Source Projects Using LLVM 3.1

    @@ -328,404 +218,15 @@ be used to verify some algorithms.

    An exciting aspect of LLVM is that it is used as an enabling technology for a lot of other language and tools projects. This section lists some of the - projects that have already been updated to work with LLVM 3.0.

    + projects that have already been updated to work with LLVM 3.1.

    - -

    AddressSanitizer

    - -
    - -

    AddressSanitizer - uses compiler instrumentation and a specialized malloc library to find C/C++ - bugs such as use-after-free and out-of-bound accesses to heap, stack, and - globals. The key feature of the tool is speed: the average slowdown - introduced by AddressSanitizer is less than 2x.

    - -
    - - -

    ClamAV

    - -
    - -

    Clam AntiVirus is an open source (GPL) - anti-virus toolkit for UNIX, designed especially for e-mail scanning on mail - gateways.

    - -

    Since version 0.96 it - has bytecode - signatures that allow writing detections for complex malware. - It uses LLVM's JIT to speed up the execution of bytecode on X86, X86-64, - PPC32/64, falling back to its own interpreter otherwise. The git version was - updated to work with LLVM 3.0.

    - -
    - - -

    clang_complete for VIM

    - -
    - -

    clang_complete is a - VIM plugin, that provides accurate C/C++ autocompletion using the clang front - end. The development version of clang complete, can directly use libclang - which can maintain a cache to speed up auto completion.

    - -
    - - -

    clReflect

    - -
    - -

    clReflect is a C++ - parser that uses clang/LLVM to derive a light-weight reflection database - suitable for use in game development. It comes with a very simple runtime - library for loading and querying the database, requiring no external - dependencies (including CRT), and an additional utility library for object - management and serialisation.

    - -
    - - -

    Cling C++ Interpreter

    - -
    - -

    Cling is an interactive compiler interface - (aka C++ interpreter). It supports C++ and C, and uses LLVM's JIT and the - Clang parser. It has a prompt interface, runs source files, calls into shared - libraries, prints the value of expressions, even does runtime lookup of - identifiers (dynamic scopes). And it just behaves like one would expect from - an interpreter.

    - -
    - - -

    Crack Programming Language

    - -
    - -

    Crack aims to provide - the ease of development of a scripting language with the performance of a - compiled language. The language derives concepts from C++, Java and Python, - incorporating object-oriented programming, operator overloading and strong - typing.

    - -
    - - -

    Eero

    - -
    - -

    Eero is a fully - header-and-binary-compatible dialect of Objective-C 2.0, implemented with a - patched version of the Clang/LLVM compiler. It features a streamlined syntax, - Python-like indentation, and new operators, for improved readability and - reduced code clutter. It also has new features such as limited forms of - operator overloading and namespaces, and strict (type-and-operator-safe) - enumerations. It is inspired by languages such as Smalltalk, Python, and - Ruby.

    - -
    - - -

    FAUST Real-Time Audio Signal Processing Language

    - -
    - -

    FAUST is a compiled language for - real-time audio signal processing. The name FAUST stands for Functional - AUdio STream. Its programming model combines two approaches: functional - programming and block diagram composition. In addition with the C, C++, Java - output formats, the Faust compiler can now generate LLVM bitcode, and works - with LLVM 2.7-3.0. -

    - -
    - - -

    Glasgow Haskell Compiler (GHC)

    - -
    - -

    GHC is an open source, state-of-the-art programming suite for Haskell, a - standard lazy functional programming language. It includes an optimizing - static compiler generating good code for a variety of platforms, together - with an interactive system for convenient, quick development.

    - -

    GHC 7.0 and onwards include an LLVM code generator, supporting LLVM 2.8 and - later. Since LLVM 2.9, GHC now includes experimental support for the ARM - platform with LLVM 3.0.

    - -
    - - -

    gwXscript

    - -
    - -

    gwXscript is an object oriented, - aspect oriented programming language which can create both executables (ELF, - EXE) and shared libraries (DLL, SO, DYNLIB). The compiler is implemented in - its own language and translates scripts into LLVM-IR which can be optimized - and translated into native code by the LLVM framework. Source code in - gwScript contains definitions that expand the namespaces. So you can build - your project and simply 'plug out' features by removing a file. The remaining - project does not leave scars since you directly separate concerns by the - 'template' feature of gwX. It is also possible to add new features to a - project by just adding files and without editing the original project. This - language is used for example to create games or content management systems - that should be extendable.

    - -

    gwXscript is strongly typed and offers comfort with its native types string, - hash and array. You can easily write new libraries in gwXscript or native - code. gwXscript is type safe and users should not be able to crash your - program or execute malicious code except code that is eating CPU time.

    - -
    - - -

    include-what-you-use

    - -
    - -

    include-what-you-use - is a tool to ensure that a file directly #includes - all .h files that provide a symbol that the file uses. It also - removes superfluous #includes from source files.

    - -
    - - -

    ispc: The Intel SPMD Program Compiler

    - -
    - -

    ispc is a compiler for "single program, - multiple data" (SPMD) programs. It compiles a C-based SPMD programming - language to run on the SIMD units of CPUs; it often delivers 5-6x speedups on - a single core of a CPU with an 8-wide SIMD unit compared to serial code, - while still providing a clean and easy-to-understand programming model. For - an introduction to the language and its performance, - see the walkthrough of a short - example program. ispc is licensed under the BSD license.

    - -
    - - -

    The Julia Programming Language

    - -
    - -

    Julia is a high-level, - high-performance dynamic language for technical - computing. It provides a sophisticated compiler, distributed parallel - execution, numerical accuracy, and an extensive mathematical function - library. The compiler uses type inference to generate fast code - without any type declarations, and uses LLVM's optimization passes and - JIT compiler. The language is designed around multiple dispatch, - giving programs a large degree of flexibility. It is ready for use on many - kinds of problems.

    -
    - - -

    LanguageKit and Pragmatic Smalltalk

    - -
    - -

    LanguageKit is - a framework for implementing dynamic languages sharing an object model with - Objective-C. It provides static and JIT compilation using LLVM along with - its own interpreter. Pragmatic Smalltalk is a dialect of Smalltalk, built on - top of LanguageKit, that interfaces directly with Objective-C, sharing the - same object representation and message sending behaviour. These projects are - developed as part of the Étoilé desktop environment.

    - -
    - - -

    LuaAV

    - -
    - -

    LuaAV is a real-time - audiovisual scripting environment based around the Lua language and a - collection of libraries for sound, graphics, and other media protocols. LuaAV - uses LLVM and Clang to JIT compile efficient user-defined audio synthesis - routines specified in a declarative syntax.

    - -
    - - -

    Mono

    - -
    - -

    An open source, cross-platform implementation of C# and the CLR that is - binary compatible with Microsoft.NET. Has an optional, dynamically-loaded - LLVM code generation backend in Mini, the JIT compiler.

    - -

    Note that we use a Git mirror of LLVM with some patches.

    - -
    - - -

    Polly

    - -
    - -

    Polly is an advanced data-locality - optimizer and automatic parallelizer. It uses an advanced, mathematical - model to calculate detailed data dependency information which it uses to - optimize the loop structure of a program. Polly can speed up sequential code - by improving memory locality and consequently the cache use. Furthermore, - Polly is able to expose different kind of parallelism which it exploits by - introducing (basic) OpenMP and SIMD code. A mid-term goal of Polly is to - automatically create optimized GPU code.

    - -
    - - -

    Portable OpenCL (pocl)

    - -
    - -

    Portable OpenCL is an open source implementation of the OpenCL standard which - can be easily adapted for new targets. One of the goals of the project is - improving performance portability of OpenCL programs, avoiding the need for - target-dependent manual optimizations. A "native" target is included, which - allows running OpenCL kernels on the host (CPU).

    - -
    - - -

    Pure

    - -
    -

    Pure is an - algebraic/functional programming language based on term rewriting. Programs - are collections of equations which are used to evaluate expressions in a - symbolic fashion. The interpreter uses LLVM as a backend to JIT-compile Pure - programs to fast native code. Pure offers dynamic typing, eager and lazy - evaluation, lexical closures, a hygienic macro system (also based on term - rewriting), built-in list and matrix support (including list and matrix - comprehensions) and an easy-to-use interface to C and other programming - languages (including the ability to load LLVM bitcode modules, and inline C, - C++, Fortran and Faust code in Pure programs if the corresponding LLVM-enabled - compilers are installed).

    - -

    Pure version 0.48 has been tested and is known to work with LLVM 3.0 - (and continues to work with older LLVM releases >= 2.5).

    - -
    - - -

    Renderscript

    - -
    - -

    Renderscript - is Android's advanced 3D graphics rendering and compute API. It provides a - portable C99-based language with extensions to facilitate common use cases - for enhancing graphics and thread level parallelism. The Renderscript - compiler frontend is based on Clang/LLVM. It emits a portable bitcode format - for the actual compiled script code, as well as reflects a Java interface for - developers to control the execution of the compiled bitcode. Executable - machine code is then generated from this bitcode by an LLVM backend on the - device. Renderscript is thus able to provide a mechanism by which Android - developers can improve performance of their applications while retaining - portability.

    - -
    - - -

    SAFECode

    - -
    - -

    SAFECode is a memory safe C/C++ - compiler built using LLVM. It takes standard, unannotated C/C++ code, - analyzes the code to ensure that memory accesses and array indexing - operations are safe, and instruments the code with run-time checks when - safety cannot be proven statically. SAFECode can be used as a debugging aid - (like Valgrind) to find and repair memory safety bugs. It can also be used - to protect code from security attacks at run-time.

    - -
    - - -

    The Stupid D Compiler (SDC)

    - -
    - -

    The Stupid D Compiler is a - project seeking to write a self-hosting compiler for the D programming - language without using the frontend of the reference compiler (DMD).

    - -
    - - -

    TTA-based Co-design Environment (TCE)

    - -
    - -

    TCE is a toolset for designing application-specific processors (ASP) based on - the Transport triggered architecture (TTA). The toolset provides a complete - co-design flow from C/C++ programs down to synthesizable VHDL and parallel - program binaries. Processor customization points include the register files, - function units, supported operations, and the interconnection network.

    - -

    TCE uses Clang and LLVM for C/C++ language support, target independent - optimizations and also for parts of code generation. It generates new - LLVM-based code generators "on the fly" for the designed TTA processors and - loads them in to the compiler backend as runtime libraries to avoid - per-target recompilation of larger parts of the compiler chain.

    - -
    - - -

    Tart Programming Language

    - -
    - -

    Tart is a general-purpose, - strongly typed programming language designed for application - developers. Strongly inspired by Python and C#, Tart focuses on practical - solutions for the professional software developer, while avoiding the clutter - and boilerplate of legacy languages like Java and C++. Although Tart is still - in development, the current implementation supports many features expected of - a modern programming language, such as garbage collection, powerful - bidirectional type inference, a greatly simplified syntax for template - metaprogramming, closures and function literals, reflection, operator - overloading, explicit mutability and immutability, and much more. Tart is - flexible enough to accommodate a broad range of programming styles and - philosophies, while maintaining a strong commitment to simplicity, minimalism - and elegance in design.

    - -
    - - -

    ThreadSanitizer

    - -
    - -

    ThreadSanitizer is a - data race detector for (mostly) C and C++ code, available for Linux, Mac OS - and Windows. On different systems, we use binary instrumentation frameworks - (Valgrind and Pin) as frontends that generate the program events for the race - detection algorithm. On Linux, there's an option of using LLVM-based - compile-time instrumentation.

    - -
    + ... to be filled in right before the release ...

    - What's New in LLVM 3.0? + What's New in LLVM 3.1?

    @@ -759,49 +260,10 @@ be used to verify some algorithms. llvm/lib/Archive - replace with lib object? --> -

    LLVM 3.0 includes several major changes and big features:

    +

    LLVM 3.1 includes several major changes and big features:

    @@ -818,27 +280,7 @@ be used to verify some algorithms. expose new optimization opportunities:

    @@ -854,35 +296,7 @@ be used to verify some algorithms. optimizers:

    @@ -902,30 +316,7 @@ be used to verify some algorithms. to the LLVM MC Project Blog Post.

    @@ -942,30 +333,7 @@ be used to verify some algorithms. make it run faster:

    @@ -979,30 +347,7 @@ be used to verify some algorithms.

    New features and major changes in the X86 target include:

    @@ -1017,15 +362,7 @@ be used to verify some algorithms.

    New features of the ARM target include:

    @@ -1041,37 +378,10 @@ be used to verify some algorithms. backend. Some of the major new features include:

    - -

    - PTX Target Improvements -

    - -
    - -

    - The PTX back-end is still experimental, but is fairly usable for compute kernels - in LLVM 3.0. Most scalar arithmetic is implemented, as well as intrinsics to - access the special PTX registers and sync instructions. The major missing - pieces are texture/sampler support and some vector operations.

    - -

    That said, the backend is already being used for domain-specific languages - and can be used by Clang to - compile OpenCL - C code into PTX.

    - -
    -

    Other Target Specific Improvements @@ -1080,14 +390,8 @@ be used to verify some algorithms.
      -
    • Many PowerPC improvements have been implemented for ELF targets, including - support for varargs and initial support for direct .o file emission.
      • +
    • ....
      • -
    • MicroBlaze scheduling itineraries were added that model the - 3-stage and the 5-stage pipeline architectures. The 3-stage - pipeline model can be selected with -mcpu=mblaze3 - and the 5-stage pipeline model can be selected with - -mcpu=mblaze5.
    @@ -1101,47 +405,16 @@ be used to verify some algorithms.

    If you're already an LLVM user or developer with out-of-tree changes based on - LLVM 2.9, this section lists some "gotchas" that you may run into upgrading + LLVM 3.1, this section lists some "gotchas" that you may run into upgrading from the previous release.

      -
    • LLVM 3.0 removes support for reading LLVM 2.8 and earlier files, and LLVM - 3.1 will eliminate support for reading LLVM 2.9 files. Going forward, we - aim for all future versions of LLVM to read bitcode files and .ll files - produced by LLVM 3.0.
      • -
    • Tablegen has been split into a library, allowing the clang tblgen pieces - to now live in the clang tree. The llvm version has been renamed to - llvm-tblgen instead of tblgen.
      • -
    • The LLVMC meta compiler driver was removed.
      • -
    • The unused PostOrder Dominator Frontiers and LowerSetJmp passes were removed.
      • - - -
    • The old TailDup pass was not used in the standard pipeline - and was unable to update ssa form, so it has been removed. -
    • The syntax of volatile loads and stores in IR has been changed to - "load volatile"/"store volatile". The old - syntax ("volatile load"/"volatile store") - is still accepted, but is now considered deprecated and will be removed in - 3.1.
      • -
    • llvm-gcc's frontend tests have been removed from llvm/test/Frontend*, sunk - into the clang and dragonegg testsuites.
      • -
    • The old atomic intrinsics (llvm.memory.barrier and - llvm.atomic.*) are now gone. Please use the new atomic - instructions, described in the atomics guide. -
    • LLVM's configure script doesn't depend on llvm-gcc anymore, eliminating a - strange circular dependence between projects.
      • +
    • LLVM 3.1 removes support for reading LLVM 2.9 bitcode files. Going forward, + we aim for all future versions of LLVM to read bitcode files and .ll files + produced by LLVM 3.0 and later.
      • +
    • ....
    -

    Windows (32-bit)

    -
    - -
      -
    • On Win32(MinGW32 and MSVC), Windows 2000 will not be supported. - Windows XP or higher is required.
      • -
    - -
    -
    @@ -1155,100 +428,7 @@ be used to verify some algorithms. LLVM API changes are:

      -
    • The biggest and most pervasive change is that the type system has been - rewritten: PATypeHolder and OpaqueType are gone, - and all APIs deal with Type* instead of const - Type*. If you need to create recursive structures, then create a - named structure, and use setBody() when all its elements are - built. Type merging and refining is gone too: named structures are not - merged with other structures, even if their layout is identical. (of - course anonymous structures are still uniqued by layout).
      • - -
    • PHINode::reserveOperandSpace has been removed. Instead, you - must specify how many operands to reserve space for when you create the - PHINode, by passing an extra argument - into PHINode::Create.
      • - -
    • PHINodes no longer store their incoming BasicBlocks as operands. Instead, - the list of incoming BasicBlocks is stored separately, and can be accessed - with new functions PHINode::block_begin - and PHINode::block_end.
      • - -
    • Various functions now take an ArrayRef instead of either a - pair of pointers (or iterators) to the beginning and end of a range, or a - pointer and a length. Others now return an ArrayRef instead - of a reference to a SmallVector - or std::vector. These include: -
        - -
      • CallInst::Create
        • -
      • ComputeLinearIndex (in llvm/CodeGen/Analysis.h)
        • -
      • ConstantArray::get
        • -
      • ConstantExpr::getExtractElement
        • -
      • ConstantExpr::getGetElementPtr
        • -
      • ConstantExpr::getInBoundsGetElementPtr
        • -
      • ConstantExpr::getIndices
        • -
      • ConstantExpr::getInsertElement
        • -
      • ConstantExpr::getWithOperands
        • -
      • ConstantFoldCall (in llvm/Analysis/ConstantFolding.h)
        • -
      • ConstantFoldInstOperands (in llvm/Analysis/ConstantFolding.h)
        • -
      • ConstantVector::get
        • -
      • DIBuilder::createComplexVariable
        • -
      • DIBuilder::getOrCreateArray
        • -
      • ExtractValueInst::Create
        • -
      • ExtractValueInst::getIndexedType
        • -
      • ExtractValueInst::getIndices
        • -
      • FindInsertedValue (in llvm/Analysis/ValueTracking.h)
        • -
      • gep_type_begin (in llvm/Support/GetElementPtrTypeIterator.h)
        • -
      • gep_type_end (in llvm/Support/GetElementPtrTypeIterator.h)
        • -
      • GetElementPtrInst::Create
        • -
      • GetElementPtrInst::CreateInBounds
        • -
      • GetElementPtrInst::getIndexedType
        • -
      • InsertValueInst::Create
        • -
      • InsertValueInst::getIndices
        • -
      • InvokeInst::Create
        • -
      • IRBuilder::CreateCall
        • -
      • IRBuilder::CreateExtractValue
        • -
      • IRBuilder::CreateGEP
        • -
      • IRBuilder::CreateInBoundsGEP
        • -
      • IRBuilder::CreateInsertValue
        • -
      • IRBuilder::CreateInvoke
        • -
      • MDNode::get
        • -
      • MDNode::getIfExists
        • -
      • MDNode::getTemporary
        • -
      • MDNode::getWhenValsUnresolved
        • -
      • SimplifyGEPInst (in llvm/Analysis/InstructionSimplify.h)
        • -
      • TargetData::getIndexedOffset
        • -
      • - -
    • All forms of StringMap::getOrCreateValue have been remove - except for the one which takes a StringRef.
      • - -
    • The LLVMBuildUnwind function from the C API was removed. The - LLVM unwind instruction has been deprecated for a long time - and isn't used by the current front-ends. So this was removed during the - exception handling rewrite.
      • - -
    • The LLVMAddLowerSetJmpPass function from the C API was - removed because the LowerSetJmp pass was removed.
      • - -
    • The DIBuilder interface used by front ends to encode - debugging information in the LLVM IR now expects clients to - use DIBuilder::finalize() at the end of translation unit to - complete debugging information encoding.
      • - -
    • TargetSelect.h moved to Support/ from Target/
      • - -
    • UpgradeIntrinsicCall no longer upgrades pre-2.9 intrinsic calls (for - example llvm.memset.i32).
      • - -
    • It is mandatory to initialize all out-of-tree passes too and their dependencies now with - INITIALIZE_PASS{BEGIN,END,} - and INITIALIZE_{PASS,AG}_DEPENDENCY.
      • - -
    • The interface for MemDepResult in MemoryDependenceAnalysis has been - enhanced with new return types Unknown and NonFuncLocal, in addition to - the existing types Clobber, Def, and NonLocal.
      • +
    • ....
    @@ -1312,130 +492,6 @@ be used to verify some algorithms. - - - - -