6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2024-07-21 02:29:22 +00:00
Code Issues Projects Releases Wiki Activity

Partial update for Release 1.9

Browse Source 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31350 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Reid Spencer 2006-11-01 16:15:04 +00:00
parent 560a8d0512
commit bb9fd30e6b
1 changed files with 24 additions and 58 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

82
docs/ReleaseNotes.html
View File

@ -4,11 +4,11 @@
<head> <head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<link rel="stylesheet" href="llvm.css" type="text/css"> <link rel="stylesheet" href="llvm.css" type="text/css">
<title>LLVM 1.8 Release Notes</title> <title>LLVM 1.9 Release Notes</title>
</head> </head>
<body> <body>
<div class="doc_title">LLVM 1.8 Release Notes</div> <div class="doc_title">LLVM 1.9 Release Notes</div>
<ol> <ol>
<li><a href="#intro">Introduction</a></li> <li><a href="#intro">Introduction</a></li>
@ -32,7 +32,7 @@
<div class="doc_text"> <div class="doc_text">
<p>This document contains the release notes for the LLVM compiler <p>This document contains the release notes for the LLVM compiler
infrastructure, release 1.8. Here we describe the status of LLVM, including any infrastructure, release 1.9. Here we describe the status of LLVM, including any
known problems and major improvements from the previous release. The most known problems and major improvements from the previous release. The most
up-to-date version of this document (corresponding to LLVM CVS) can be found up-to-date version of this document (corresponding to LLVM CVS) can be found
on the <a on the <a
@ -61,92 +61,58 @@ href="http://llvm.org/releases/">releases page</a>.</p>
<div class="doc_text"> <div class="doc_text">
<p>This is the ninth public release of the LLVM Compiler Infrastructure. This <p>This is the tenth public release of the LLVM Compiler Infrastructure. This
release incorporates a large number of enhancements and new features, release incorporates a large number of enhancements and new features.
including DWARF debugging support (C and C++ on Darwin/PPC), improved inline
assembly support, a new <a href="http://llvm.org/nightlytest/">nightly
tester</a>, llvm-config enhancements, many bugs
fixed, and performance and compile time improvements.
</p> </p>
</div> </div>
<!--=========================================================================--> <!--=========================================================================-->
<div class="doc_subsection"> <div class="doc_subsection">
<a name="newfeatures">New Features in LLVM 1.8</a> <a name="newfeatures">New Features in LLVM 1.9</a>
</div> </div>
<!--_________________________________________________________________________--> <!--_________________________________________________________________________-->
<div class="doc_subsubsection"><a name="dwarf">DWARF debugging <div class="doc_subsubsection"><a name="elfdwarf">DWARF debugging
support </a></div> support for X86/ELF</a></div>
<div class="doc_text"> <div class="doc_text">
<p>The llvm-gcc4 C front-end now generates debugging info for C and C++ for
<p>The llvm-gcc4 C front-end now generates debugging info for C and C++. This X86/ELF platforms (Linux). This extends the PPC/Darwin and X86/Darwin debugging
information is propagated through the compiler and the code generator can support available in release 18.8 DWARF is a standard debugging format used on
currently produce DWARF debugging information from it. DWARF is a standard many platforms.</p>
debugging format used on many platforms, but currently LLVM only includes
target support for Mac OS X targets for the 1.8 release.
</p>
</div> </div>
<!--_________________________________________________________________________--> <!--_________________________________________________________________________-->
<div class="doc_subsubsection"><a name="inlineasm">Inline Assembly <div class="doc_subsubsection"><a name="signedinst">Signed Instructions</a></div>
Support</a></div>
<div class="doc_text"> <div class="doc_text">
<p>As a step towards making LLVM's integer types signless, several new
<p>Inline assembly support is substantially improved in LLVM 1.8 over LLVM 1.7. instructions have been added to LLVM. The DIV instruction has become UDIV, SDIV,
Many unsupported features are now supported, and inline asm support in the X86 and FDIV. The REM instruction has become UREM, SREM and FREM. The SHR
backend is far better. llvm-gcc4 now supports global register variables as instruction has become ASHR and LSHR. See the <a href="LangRef.html">Language
well.</p> Reference</a> for details on these new instructions.</p>
</div> </div>
<!--_________________________________________________________________________--> <!--_________________________________________________________________________-->
<div class="doc_subsubsection"><a name="loopopt">Loop Optimizer Improvements</a></div> <div class="doc_subsubsection"><a name="featureA">New Feature C</a></div>
<div class="doc_text"> <div class="doc_text">
<p>Describe feature C here.</p>
<p>The loop optimizer passes now uses "Loop-Closed SSA Form", which makes it
easier to update SSA form as loop transformations change the code. An
immediate benefit of this is that the loop unswitching pass can now unswitch
loops in more cases.
</p>
</div> </div>
<!--_________________________________________________________________________--> <!--_________________________________________________________________________-->
<div class="doc_subsubsection"><a name="jumptab">Jump Table Support for Switches <div class="doc_subsubsection"><a name="featureB">New Feature D</a></div>
</a></div>
<div class="doc_text"> <div class="doc_text">
<p>Describe feature D here.</p>
<p>The code generator now lowers switch statements to jump tables, providing
significant performance boosts for applications (e.g. interpreters) whose
performance is highly correlated to switch statement performance.</p>
</div> </div>
<!--_________________________________________________________________________--> <!--_________________________________________________________________________-->
<div class="doc_subsubsection"><a name="jitrelease">Deallocation of JIT'd <div class="doc_subsubsection"><a name="jitrelease">New Feature E</a></div>
Machine Code
</a></div>
<div class="doc_text"> <div class="doc_text">
<p>Describe feature E here.</p>
<p>The LLVM JIT now allows clients to deallocate machine code JIT'd to its code
buffer. This is important for long living applications that depend on the JIT.
</p>
</div> </div>
<!--_________________________________________________________________________--> <!--_________________________________________________________________________-->
<div class="doc_subsubsection"><a name="other">Other Improvements</a></div> <div class="doc_subsubsection"><a name="other">Other Improvements</a></div>
<div class="doc_text"> <div class="doc_text">
<p>This release includes many other improvements, including improvements to <p>This release includes many other improvements, including improvements to
the optimizers and code generators (improving the generated code) changes to the optimizers and code generators (improving the generated code) changes to
speed up the compiler in many ways (improving algorithms and fine tuning speed up the compiler in many ways (improving algorithms and fine tuning