From owner-svn-src-all@FreeBSD.ORG Sat Dec 22 14:58:33 2012
Return-Path:
Delivered-To: svn-src-all@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52])
by hub.freebsd.org (Postfix) with ESMTP id D0439815;
Sat, 22 Dec 2012 14:58:33 +0000 (UTC) (envelope-from dim@FreeBSD.org)
Received: from svn.freebsd.org (svn.freebsd.org
[IPv6:2001:1900:2254:2068::e6a:0])
by mx1.freebsd.org (Postfix) with ESMTP id B02F98FC0A;
Sat, 22 Dec 2012 14:58:33 +0000 (UTC)
Received: from svn.freebsd.org (localhost [127.0.0.1])
by svn.freebsd.org (8.14.5/8.14.5) with ESMTP id qBMEwX5n097726;
Sat, 22 Dec 2012 14:58:33 GMT (envelope-from dim@svn.freebsd.org)
Received: (from dim@localhost)
by svn.freebsd.org (8.14.5/8.14.5/Submit) id qBMEwUOr097704;
Sat, 22 Dec 2012 14:58:30 GMT (envelope-from dim@svn.freebsd.org)
Message-Id: <201212221458.qBMEwUOr097704@svn.freebsd.org>
From: Dimitry Andric
Date: Sat, 22 Dec 2012 14:58:30 +0000 (UTC)
To: src-committers@freebsd.org, svn-src-all@freebsd.org,
svn-src-vendor@freebsd.org
Subject: svn commit: r244590 - in vendor/llvm/dist: docs include/llvm/MC
lib/ExecutionEngine/RuntimeDyld lib/MC lib/Target/Mips
lib/Target/Mips/InstPrinter lib/Target/Mips/MCTargetDesc
lib/Transforms/Scalar...
X-SVN-Group: vendor
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
X-BeenThere: svn-src-all@freebsd.org
X-Mailman-Version: 2.1.14
Precedence: list
List-Id: "SVN commit messages for the entire src tree \(except for "
user" and " projects" \)"
List-Unsubscribe: ,
List-Archive:
List-Post:
List-Help:
List-Subscribe: ,
X-List-Received-Date: Sat, 22 Dec 2012 14:58:33 -0000
Author: dim
Date: Sat Dec 22 14:58:30 2012
New Revision: 244590
URL: http://svnweb.freebsd.org/changeset/base/244590
Log:
Vendor import of llvm tags/RELEASE_32/final r170710 (effectively, 3.2
release):
http://llvm.org/svn/llvm-project/llvm/tags/RELEASE_32/final@170710
Added:
vendor/llvm/dist/test/CodeGen/Mips/biggot.ll
vendor/llvm/dist/test/MC/Mips/xgot.ll
Modified:
vendor/llvm/dist/docs/ReleaseNotes.html
vendor/llvm/dist/include/llvm/MC/MCExpr.h
vendor/llvm/dist/lib/ExecutionEngine/RuntimeDyld/RuntimeDyld.cpp
vendor/llvm/dist/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.cpp
vendor/llvm/dist/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldImpl.h
vendor/llvm/dist/lib/MC/MCExpr.cpp
vendor/llvm/dist/lib/Target/Mips/InstPrinter/MipsInstPrinter.cpp
vendor/llvm/dist/lib/Target/Mips/MCTargetDesc/MipsAsmBackend.cpp
vendor/llvm/dist/lib/Target/Mips/MCTargetDesc/MipsBaseInfo.h
vendor/llvm/dist/lib/Target/Mips/MCTargetDesc/MipsELFObjectWriter.cpp
vendor/llvm/dist/lib/Target/Mips/MCTargetDesc/MipsFixupKinds.h
vendor/llvm/dist/lib/Target/Mips/MCTargetDesc/MipsMCCodeEmitter.cpp
vendor/llvm/dist/lib/Target/Mips/Mips64InstrInfo.td
vendor/llvm/dist/lib/Target/Mips/MipsCodeEmitter.cpp
vendor/llvm/dist/lib/Target/Mips/MipsISelLowering.cpp
vendor/llvm/dist/lib/Target/Mips/MipsInstrInfo.td
vendor/llvm/dist/lib/Target/Mips/MipsJITInfo.cpp
vendor/llvm/dist/lib/Target/Mips/MipsJITInfo.h
vendor/llvm/dist/lib/Target/Mips/MipsMCInstLower.cpp
vendor/llvm/dist/lib/Transforms/Scalar/SROA.cpp
vendor/llvm/dist/test/Transforms/SROA/basictest.ll
vendor/llvm/dist/test/Transforms/SROA/big-endian.ll
Modified: vendor/llvm/dist/docs/ReleaseNotes.html
==============================================================================
--- vendor/llvm/dist/docs/ReleaseNotes.html Sat Dec 22 14:35:46 2012 (r244589)
+++ vendor/llvm/dist/docs/ReleaseNotes.html Sat Dec 22 14:58:30 2012 (r244590)
@@ -29,12 +29,6 @@
Written by the LLVM Team
-These are in-progress notes for the upcoming LLVM 3.2
-release.
-You may prefer the
-LLVM 3.1
-Release Notes.
-
Introduction
@@ -46,7 +40,7 @@ Release Notes.
This document contains the release notes for the LLVM Compiler
Infrastructure, release 3.2. 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
+ sub-projects of LLVM, and some of the current users of the code. All LLVM
releases may be downloaded from the LLVM
releases web site.
@@ -72,11 +66,12 @@ Release Notes.
-
The LLVM 3.2 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 in development. Here we
- include updates on these subprojects.
+
The LLVM 3.2 distribution currently consists of production-quality code
+ from the core LLVM repository, which roughly includes the LLVM optimizers,
+ code generators and supporting tools, as well as Clang, DragonEgg and
+ compiler-rt sub-project repositories. In addition to this code, the LLVM
+ Project includes other sub-projects that are in development. Here we
+ include updates on these sub-projects.
@@ -90,18 +85,18 @@ Release Notes.
experience through expressive diagnostics, a high level of conformance to
language standards, fast compilation, and low memory use. Like LLVM, Clang
provides a modular, library-based architecture that makes it suitable for
- creating or integrating with other development tools. Clang is considered a
- production-quality compiler for C, Objective-C, C++ and Objective-C++ on x86
- (32- and 64-bit), and for Darwin/ARM targets.
+ creating or integrating with other development tools.
In the LLVM 3.2 time-frame, the Clang team has made many improvements.
Highlights include:
- - ...
+ - Improvements to Clang's diagnostics
+ - Support for tls_model attribute
+ - Type safety attributes
For more details about the changes to Clang since the 3.1 release, see the
- Clang release
+ Clang 3.2 release
notes.
If Clang rejects your code but another compiler accepts it, please take a
@@ -129,7 +124,10 @@ Release Notes.
The 3.2 release has the following notable changes:
- - ...
+ - Able to load LLVM plugins such as Polly.
+ - Supports thread-local storage models.
+ - Passes knowledge of variable lifetimes to the LLVM optimizers.
+ - No longer requires GCC to be built with LTO support.
@@ -141,7 +139,8 @@ Release Notes.
-
The new LLVM compiler-rt project
+
+
The LLVM compiler-rt project
is a simple library that provides an implementation of the low-level
target-specific hooks required by code generation and other runtime
components. For example, when compiling for a 32-bit target, converting a
@@ -153,7 +152,11 @@ Release Notes.
The 3.2 release has the following notable changes:
- - ...
+ - ThreadSanitizer (TSan) - data race detector run-time library for C/C++ has been added.
+ - Improvements to AddressSanitizer including: better portability
+ (OSX, Android NDK), support for cmake based builds, enhanced error reporting and lots of bug fixes.
+ - Added support for A6 'Swift' CPU.
+ divsi3
function has been enhanced to take advantage of a hardware unsigned divide when it is available.
@@ -174,7 +177,9 @@ Release Notes.
The 3.2 release has the following notable changes:
- - ...
+ - Linux build fixes for clang (see Building LLDB)
+ - Some Linux stability and usability improvements
+ - Switch expression evaluation to use MCJIT (from legacy JIT) on Linux
@@ -193,7 +198,15 @@ Release Notes.
Within the LLVM 3.2 time-frame there were the following highlights:
- - ...
+ - C++11 shared_ptr atomic access API (20.7.2.5) has been implemented.
+ - Applied noexcept and constexpr throughout library.
+ - Improved C++11 conformance in associative container emplace.
+ - Performance improvements in: std::rotate algorithm and I/O.
+ - Operator new/delete and type_infos for exception types moved from libc++ to libc++abi.
+ - Bug fixes in:
<atomic>
; vector<bool>
algorithms,
+ <future>
,<tuple>
,
+ <type_traits>
,<fstream>
,<istream>
,
+ <iterator>
, <condition_variable>
,<complex>
as well as visibility fixes.
@@ -212,7 +225,7 @@ Release Notes.
The 3.2 release has the following notable changes:
- - ...
+ - Bug fixes only, no functional changes.
@@ -227,16 +240,61 @@ Release Notes.
Polly is an experimental
optimizer for data locality and parallelism. It currently provides high-level
- loop optimizations and automatic parallelisation (using the OpenMP run time).
+ loop optimizations and automatic parallelization (using the OpenMP run time).
Work in the area of automatic SIMD and accelerator code generation was
started.
Within the LLVM 3.2 time-frame there were the following highlights:
- - ...
+ - isl, the integer set library used by Polly, was relicensed under the MIT license.
+ - isl based code generation.
+ - MIT licensed replacement for CLooG (LGPLv2).
+ - Fine grained option handling (separation of core and border computations, control overhead vs. code size).
+ - Support for FORTRAN and Dragonegg.
+ - OpenMP code generation fixes.
+
+
+
+
+
+
+
+
+
+
The Clang Static Analyzer
+ is an advanced source code analysis tool integrated into Clang that performs
+ a deep analysis of code to find potential bugs.
+
+
In the LLVM 3.2 release, the static analyzer has made significant improvements
+ in many areas, with notable highlights such as:
+
+
+ - Improved interprocedural analysis within a translation unit (see details below), which greatly amplified the analyzer's ability to find bugs.
+ - New infrastructure to model "well-known" APIs, allowing the analyzer to do a much better job when modeling calls to such functions.
+ - Significant improvements to the APIs to write static analyzer checkers, with a more unified way of representing function/method calls in the checker API. Details can be found in the Building a Checker in 24 hours talk.
+
+
+
The release specifically includes notable improvements for Objective-C analysis, including:
+
+
+ - Interprocedural analysis for Objective-C methods.
+ - Interprocedural analysis of calls to "blocks".
+ - Precise modeling of GCD APIs such as dispatch_once and friends.
+ - Improved support for recently added Objective-C constructs such as array and dictionary literals.
+
+
+
The release specifically includes notable improvements for C++ analysis, including:
+
+
+ - Interprocedural analysis for C++ methods (within a translation unit).
+ - More precise modeling of C++ initializers and destructors.
+
Finally, this release includes many small improvements to scan-build, which can be used to drive the analyzer from the command line or a continuous integration system. This includes a directory-traversal issue, which could cause potential security problems in some cases. We would like to acknowledge Tim Brown of Portcullis Computer Security Ltd for reporting this issue.
+
@@ -265,6 +323,19 @@ Release Notes.
+EmbToolkit
+
+
+
+
EmbToolkit provides Linux cross-compiler
+ toolchain/SDK (GCC/binutils/C library (uclibc,eglibc,musl)), a build system for
+ package cross-compilation and optionally various root file systems.
+ It supports ARM and MIPS. There is an ongoing effort to provide a clang+llvm
+ environment for the 3.2 releases,
+
+
+
+
FAUST
@@ -274,7 +345,7 @@ Release Notes.
AUdio STream. Its programming model combines two approaches: functional
programming and block diagram composition. In addition with the C, C++, Java,
JavaScript output formats, the Faust compiler can generate LLVM bitcode, and
- works with LLVM 2.7-3.1.
+ works with LLVM 2.7-3.2.
@@ -331,7 +402,11 @@ Release Notes.
OSL was developed by Sony Pictures Imageworks for use in its in-house
renderer used for feature film animation and visual effects, and is
- distributed as open source software with the "New BSD" license.
+ distributed as open source software with the "New BSD" license.
+ It has been used for all the shading on such films as The Amazing Spider-Man,
+ Men in Black III, Hotel Transylvania, and may other films in-progress,
+ and also has been incorporated into several commercial and open source
+ rendering products such as Blender, VRay, and Autodesk Beast.
@@ -367,7 +442,7 @@ Release Notes.
C++, Fortran and Faust code in Pure programs if the corresponding
LLVM-enabled compilers are installed).
-Pure version 0.54 has been tested and is known to work with LLVM 3.1 (and
+
Pure version 0.56 has been tested and is known to work with LLVM 3.2 (and
continues to work with older LLVM releases >= 2.5).
@@ -432,7 +507,9 @@ Release Notes.
LLVM 3.2 includes several major changes and big features:
- - ...
+ - Loop Vectorizer.
+ - New implementation of SROA.
+ - New NVPTX back-end (replacing existing PTX back-end) based on NVIDIA sources.
@@ -451,7 +528,10 @@ Release Notes.
- Thread local variables may have a specified TLS model. See the
Language Reference Manual.
- - ...
+ - 'TYPE_CODE_FUNCTION_OLD' type code and autoupgrade code for old function attributes format has been removed.
+ - Internal representation of the Attributes class has been converted into a pointer to an
+ opaque object that's uniqued by and stored in the LLVMContext object.
+ The Attributes class then becomes a thin wrapper around this opaque object.
@@ -489,23 +569,33 @@ Release Notes.
- The inner most loops must have a single basic block.
- The number of iterations are known before the loop starts to execute.
- - The loop counter needs to be incrimented by one.
+ - The loop counter needs to be incremented by one.
- The loop trip count can be a variable.
- Loops do not need to start at zero.
- The induction variable can be used inside the loop.
- Loop reductions are supported.
- Arrays with affine access pattern do not need to be marked as 'noalias' and are checked at runtime.
- - ...
-SROA - We've re-written SROA to be significantly more powerful.
-
+SROA - We’ve re-written SROA to be significantly more powerful and generate
+code which is much more friendly to the rest of the optimization pipeline.
+Previously this pass had scaling problems that required it to only operate on
+relatively small aggregates, and at times it would mistakenly replace a large
+aggregate with a single very large integer in order to make it a scalar SSA
+value. The result was a large number of i1024 and i2048 values representing any
+small stack buffer. These in turn slowed down many subsequent optimization
+paths.
+The new SROA pass uses a different algorithm that allows it to only promote to
+scalars the pieces of the aggregate actively in use. Because of this it doesn’t
+require any thresholds. It also always deduces the scalar values from the uses
+of the aggregate rather than the specific LLVM type of the aggregate. These
+features combine to both optimize more code with the pass but to improve the
+compile time of many functions dramatically.
- - Branch weight metadata is preseved through more of the optimizer.
- - ...
+ - Branch weight metadata is preserved through more of the optimizer.
@@ -524,8 +614,19 @@ Release Notes.
Intro
to the LLVM MC Project Blog Post.
-
- - ...
+
+ - Added support for following assembler directives:
.ifb
, .ifnb
, .ifc
,
+ .ifnc
, .purgem
, .rept
and .version
(ELF) as well as Darwin specific
+ .pushsection
, .popsection
and .previous
.
+ - Enhanced handling of
.lcomm directive
.
+ - MS style inline assembler: added implementation of the offset and TYPE operators.
+ - Targets can specify minimum supported NOP size for NOP padding.
+ - ELF improvements: added support for generating ELF objects on Windows.
+ - MachO improvements: symbol-difference variables are marked as N_ABS, added direct-to-object attribute for data-in-code markers.
+ - Added support for annotated disassembly output for x86 and arm targets.
+ - Arm support has been improved by adding support for ARM TARGET2 relocation
+ and fixing hadling of ARM-style "$d.*" labels.
+ - Implemented local-exec TLS on PowerPC.
@@ -550,10 +651,6 @@ Release Notes.
infrastructure, which allows us to implement more aggressive algorithms and
make it run faster:
-
-
We added new TableGen infrastructure to support bundling for
Very Long Instruction Word (VLIW) architectures. TableGen can now
automatically generate a deterministic finite automaton from a VLIW
@@ -563,6 +660,13 @@ Release Notes.
We have added a new target independent VLIW packetizer based on the
DFA infrastructure to group machine instructions into bundles.
+ We have added new TableGen infrastructure to support relationship maps
+ between instructions. This feature enables TableGen to automatically
+ construct a set of relation tables and query functions that can be used
+ to switch between various forms of instructions. For more information,
+ please refer to
+ How To Use Instruction Mappings.
+
@@ -588,7 +692,7 @@ Release Notes.
New features and major changes in the X86 target include:
- - ...
+ - Small codegen optimizations, especially for AVX2.
@@ -603,7 +707,7 @@ Release Notes.
New features of the ARM target include:
- - ...
+ - Support and performance tuning for the A6 'Swift' CPU.
@@ -620,7 +724,7 @@ Release Notes.
platform specific support for Linux.
Full support is included for Thumb1, Thumb2 and ARM modes, along with
- subtarget and CPU specific extensions for VFP2, VFP3 and NEON.
+ sub-target and CPU specific extensions for VFP2, VFP3 and NEON.
The assembler is Unified Syntax only (see ARM Architecural Reference Manual
for details). While there is some, and growing, support for pre-unfied
@@ -640,7 +744,29 @@ Release Notes.
New features and major changes in the MIPS target include:
- - ...
+ - Integrated assembler support:
+ MIPS32 works for both PIC and static, known limitation is the PR14456 where
+ R_MIPS_GPREL16 relocation is generated with the wrong addend.
+ MIPS64 support is incomplete, for example exception handling is not working.
+ - Support for fast calling convention has been added.
+ - Support for Android MIPS toolchain has been added to clang driver.
+ - Added clang driver support for MIPS N32 ABI through "-mabi=n32" option.
+ - MIPS32 and MIPS64 disassembler has been implemented.
+ - Support for compiling programs with large GOTs (exceeding 64kB in size) has been added
+ through llc option "-mxgot".
+ - Added experimental support for MIPS32 DSP intrinsics.
+ - Experimental support for MIPS16 with following limitations: only soft float is supported,
+ C++ exceptions are not supported, large stack frames (> 32000 bytes) are not supported,
+ direct object code emission is not supported only .s .
+ - Standalone assembler (llvm-mc): implementation is in progress and considered experimental.
+ - All classic JIT and MCJIT tests pass on Little and Big Endian MIPS32 platforms.
+ - Inline asm support: all common constraints and operand modifiers have been implemented.
+ - Added tail call optimization support, use llc option "-enable-mips-tail-calls"
+ or clang options "-mllvm -enable-mips-tail-calls"to enable it.
+ - Improved register allocation by removing registers $fp, $gp, $ra and $at from the list of reserved registers.
+ - Long branch expansion pass has been implemented, which expands branch
+ instructions with offsets that do not fit in the 16-bit field.
+ - Cavium Octeon II board is used for testing builds (llvm-mips-linux builder).
@@ -652,7 +778,6 @@ Release Notes.
-
Many fixes and changes across LLVM (and Clang) for better compliance with
the 64-bit PowerPC ELF Application Binary Interface, interoperability with
GCC, and overall 64-bit PowerPC support. Some highlights include:
@@ -681,8 +806,28 @@ Release Notes.
There have also been code generation improvements for both 32- and 64-bit
code. Instruction scheduling support for the Freescale e500mc and e5500
cores has been added.
+
+
+
+
+
+
+
+
+
The PTX back-end has been replaced by the NVPTX back-end, which is based on
+ the LLVM back-end used by NVIDIA in their CUDA (nvcc) and OpenCL compiler.
+ Some highlights include:
+
+ - Compatibility with PTX 3.1 and SM 3.5
+ - Support for NVVM intrinsics as defined in the NVIDIA Compiler SDK
+ - Full compatibility with old PTX back-end, with much greater coverage of
+ LLVM IR
+
Please submit any back-end bugs to the LLVM Bugzilla site.
+
@@ -693,7 +838,7 @@ Release Notes.
- - ...
+ - Added support for custom names for library functions in TargetLibraryInfo.
@@ -710,9 +855,11 @@ Release Notes.
from the previous release.
-
+- llvm-ld and llvm-stub have been removed, llvm-ld functionality can be partially replaced by
+ llvm-link | opt | {llc | as, llc -filetype=obj} | ld, or fully replaced by Clang.
+- MCJIT: added support for inline assembly (requires asm parser), added faux remote target execution to lli option '-remote-mcjit'.
+
+
@@ -733,10 +880,6 @@ Release Notes.
The TargetData structure has been renamed to DataLayout and moved to VMCore
to remove a dependency on Target.
-
-
@@ -746,33 +889,22 @@ to remove a dependency on Target.
-
In addition, some tools have changed in this release. Some of the changes
- are:
-
-
-
-
-
-
-
-
-
-
-
-
Officially supported Python bindings have been added! Feature support is far
- from complete. The current bindings support interfaces to:
+
In addition, some tools have changed in this release. Some of the changes are:
- - ...
+- opt: added support for '-mtriple' option.
+- llvm-mc : - added '-disassemble' support for '-show-inst' and '-show-encoding' options, added '-edis' option to produce annotated
+ disassembly output for X86 and ARM targets.
+- libprofile: allows the profile data file name to be specified by the LLVMPROF_OUTPUT environment variable.
+- llvm-objdump: has been changed to display available targets, '-arch' option accepts x86 and x86-64 as valid arch names.
+- llc and opt: added FMA formation from pairs of FADD + FMUL or FSUB + FMUL enabled by option '-enable-excess-fp-precision' or option '-enable-unsafe-fp-math',
+ option '-fp-contract' controls the creation by optimizations of fused FP by selecting Fast, Standard, or Strict mode.
+- llc: object file output from llc is no longer considered experimental.
+- gold plugin: handles Position Independent Executables.
-
@@ -794,7 +926,7 @@ to remove a dependency on Target.
Known problem areas include:
- - The CellSPU, MSP430, PTX and XCore backends are experimental.
+ - The CellSPU, MSP430, and XCore backends are experimental, and the CellSPU backend will be removed in LLVM 3.3.
- The integrated assembler, disassembler, and JIT is not supported by
several targets. If an integrated assembler is not supported, then a
@@ -836,7 +968,7 @@ to remove a dependency on Target.
src="http://www.w3.org/Icons/valid-html401-blue" alt="Valid HTML 4.01">
LLVM Compiler Infrastructure
- Last modified: $Date: 2012-11-20 05:22:44 +0100 (Tue, 20 Nov 2012) $
+ Last modified: $Date: 2012-12-19 11:50:28 +0100 (Wed, 19 Dec 2012) $