From 0a6f6d51ba7fdaba325cdc984d7a4e705bd7c4c5 Mon Sep 17 00:00:00 2001
From: Chris Lattner
Date: Tue, 5 Apr 2011 07:19:28 +0000
Subject: [PATCH] add a bunch of notes to myself, this is not intended to be
gramatic or make sense to anyone else.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128879 91177308-0d34-0410-b5e6-96231b3b80d8
---
docs/ReleaseNotes.html | 122 +++++++++++++++++++++++++++--------------
1 file changed, 82 insertions(+), 40 deletions(-)
diff --git a/docs/ReleaseNotes.html b/docs/ReleaseNotes.html
index adeb37a152f..e26aae70e19 100644
--- a/docs/ReleaseNotes.html
+++ b/docs/ReleaseNotes.html
@@ -61,8 +61,6 @@ current one. To see the release notes for a specific release, please see the
-
-
@@ -111,31 +108,23 @@ 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.
-In the LLVM 2.9 time-frame, the Clang team has made many improvements:
+In the LLVM 2.9 time-frame, the Clang team has made many improvements in C,
+C++ and Objective-C support. C++ support is now generally rock solid, has
+been exercised on a broad variety of code, and has several new C++'0x features
+implemented (such as rvalue references and variadic templates). LLVM 2.9 has
+also brought in a large range of bug fixes and minor features (e.g. __label__
+support), and is much more compatible with the Linux Kernel.
+
+If Clang rejects your code that is built with another compiler, please take a
+look at the language
+compatibility guide to make sure the issue isn't intentional or a known
+issue.
+
-
-
-
-
-
-
The Clang Static Analyzer
- project is an effort to use static source code analysis techniques to
- automatically find bugs in C and Objective-C programs (and hopefully C++ in the
- future!). The tool is very good at finding bugs that occur on specific
- paths through code, such as on error conditions.
-
-
The LLVM 2.9 release...
-
-
-
-
-
-
-
-
-
-The VMKit project is an implementation of
-a Java Virtual Machine (Java VM or JVM) that uses LLVM for static and
-just-in-time compilation.
-
-UPDATE.
-
-
-
compiler-rt: Compiler Runtime Library
@@ -203,7 +177,9 @@ libgcc routines).
All of the code in the compiler-rt project is available under the standard LLVM
License, a "BSD-style" license.
-NEW: MIT License as well.
+compiler_rt is now dual licensed under MIT and UIUC license
+
+Several minor changes for better ARM support.
New in LLVM 2.9, UPDATE
@@ -224,8 +200,9 @@ LLVM disassembler and the LLVM JIT.
LLDB is in early development and not included as part of the LLVM 2.9 release,
-UPDATE!
+
+
@@ -318,7 +297,70 @@ in this section.
LLVM 2.9 includes several major new capabilities:
+ last release for llvm-gcc
+TBAA
+Triple::normalize is new, llvm triples are always stored in normalized form internally.
+
+MC Assembler: X86 now generates much better diagnostics for common errors,
+ is much faster at matching instructions, is much more bug-compatible with
+ the GAS assembler, and is now generally useful for a broad range of X86
+ assembly.
+
+New Nvidia PTX backend, not generally useful in 2.9 though.
+
+Much better debug info generated, particularly in optimized code situations.
+
+ARM Fast ISel
+
+ELF MC support
+
+X86: Reimplemented all of MMX to introduce a new LLVM IR x86_mmx type. Now
+ random types like <2 x i32> are not iseld to mmx without emms.
+
+Some basic internals documentation for MC.
+
+MC Assembler support for .file and .loc.
+
+
+inline asm multiple alternative constraint support.
+
+LoopIdiom: memset/memcpy formation
+
+
+X86 support for FS/GS relative loads and stores using address space 256/257 are
+ reliable now.
+
+ARM: New code placement pass.
+
+
+PointerTracking has been removed from mainline, moved to ClamAV.
+
+EarlyCSE pass.
+
+
+ARM: Improved code generation for Cortex-A8 and Cortex-A9 CPUs.
+
+Scheduler now models operand latency and pipeline forwarding.
+
+Major regalloc rewrite, not on by default for 2.9.
+MC assembler support for 3dNow! and 3DNowA instructions.
+
+LoopIndexSplit pass was removed, unmaintained.
+
+
+COFF support in the MC assembler has made a lot of progress in the 2.9
+ timeframe, but is still not generally useful. Please see
+ "http://llvm.org/bugs/showdependencytree.cgi?id=9100&hide_resolved=1" for open bugs"?
+
+New RegionPass infrastructure
+ for region-based optimizations.
+
+MicroBlaze: major updates for aggressive delay slot filler, MC-based assembly
+ printing, assembly instruction parsing, ELF .o file emission, and MC
+ instruction disassembler.
+
+Still todo: [101025-110228]