diff options
author | Duncan Sands <baldrick@free.fr> | 2008-06-08 20:18:35 +0000 |
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committer | Duncan Sands <baldrick@free.fr> | 2008-06-08 20:18:35 +0000 |
commit | 27aff8755b33bfa59a22126fcd7f700d0fdde8db (patch) | |
tree | 3cf319bde20f16b534243cab3999fcb21eed64c1 /docs | |
parent | 47eff2be9a6ee25b4f21a58131c69719eeab78dc (diff) | |
download | llvm-27aff8755b33bfa59a22126fcd7f700d0fdde8db.tar.gz llvm-27aff8755b33bfa59a22126fcd7f700d0fdde8db.tar.bz2 llvm-27aff8755b33bfa59a22126fcd7f700d0fdde8db.tar.xz |
Using llc always rather than sometimes using LLC.
Try to improve language in various places. Use
X86 always rather than sometimes using x86. Add
some minor Ada info.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52095 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'docs')
-rw-r--r-- | docs/ReleaseNotes.html | 53 |
1 files changed, 27 insertions, 26 deletions
diff --git a/docs/ReleaseNotes.html b/docs/ReleaseNotes.html index 015564a54d..3cb9f94bb3 100644 --- a/docs/ReleaseNotes.html +++ b/docs/ReleaseNotes.html @@ -96,7 +96,7 @@ test suite no longer depends on llvm-upgrade, which makes it run faster.</p> IRBuilder.</li> <li>MRegisterInfo was renamed to TargetRegisterInfo.</li> <li>The MappedFile class is gone, please use MemoryBuffer instead.</li> -<li>The '-enable-eh' flag to LLC has been removed. Now code should encode +<li>The '-enable-eh' flag to llc has been removed. Now code should encode whether it is safe to not generate unwind information for a function by tagging the Function object with the 'nounwind' attribute.</li> @@ -113,12 +113,12 @@ test suite no longer depends on llvm-upgrade, which makes it run faster.</p> <p>LLVM 2.3 includes several major new capabilities:</p> <ul> -<li>Multiple Return Value Support</li> +<li>Multiple Return Value Support.</li> <li><p>LLVM 2.3 includes a complete reimplementation of the "llvmc" tool. It is -designed to overcome several problems of the original llvmc and to provide a -superset of the features as the 'gcc' driver.</p> +designed to overcome several problems with the original llvmc and to provide a +superset of the features of the 'gcc' driver.</p> <p>The main features of llvmc2 is:</p> @@ -140,7 +140,7 @@ no runtime interpretation is needed.</li> C.</li> -<li>kaleidoscope tutorial in ocaml.</li> +<li>Kaleidoscope tutorial in Ocaml.</li> </ul> @@ -154,7 +154,7 @@ no runtime interpretation is needed.</li> <div class="doc_text"> -<p>LLVM 2.3 fully supports llvm-gcc 4.2 front-end.</p> +<p>LLVM 2.3 fully supports the llvm-gcc 4.2 front-end.</p> <p>llvm-gcc 4.2 includes numerous fixes to better support the Objective-C front-end. Objective-C now works very well on Mac OS/X.</p> @@ -225,10 +225,10 @@ for (i = LB; i < NUB; ++i) </pre> </li> -<li>LLVM includes a new <tt>memcpy</tt> optimization pass which optimizes out -dead <tt>memcpy</tt> calls, unneeded copies of aggregates, and handles the +<li>LLVM includes a new <tt>memcpy</tt> optimization pass removes +dead <tt>memcpy</tt> calls, unneeded copies of aggregates, and performs return slot optimization. The LLVM optimizer now notices long sequences of -consecutive stores and merges them into <tt>memcpy</tt>s where profitable.</li> +consecutive stores and merges them into <tt>memcpy</tt>'s where profitable.</li> <li>Alignment detection for vector memory references and for <tt>memcpy</tt> and <tt>memset</tt> is now more aggressive.</li> @@ -245,13 +245,12 @@ deletion pass, which <em>is</em> safe for infinite loops.</li> functions for C-based languages, has been rewritten to be a FunctionPass instead a ModulePass. This allows it to be run more often and to be included at -O1 in llvm-gcc. It was also extended to include more - optimizations and several corner case bugs are fixed.</li> + optimizations and several corner case bugs were fixed.</li> <li>LLVM now includes a simple 'Jump Threading' pass, which attempts to simplify - the conditional branches with information about predecessor blocks. This - simplifies the control flow graph. This pass is pretty basic at this point, - but catches some important cases and provides a foundation to build off - of.</li> + conditional branches using information about predecessor blocks, simplifying + the control flow graph. This pass is pretty basic at this point, but catches + some important cases and provides a foundation to build on.</li> </ul> </div> @@ -328,12 +327,12 @@ faster:</p> registers.</li> <li>Trampolines (taking the address of a nested function) now work on - Linux/x86-64.</li> + Linux/X86-64.</li> <li><tt>__builtin_prefetch</tt> is now compiled into the appropriate prefetch instructions instead of being ignored.</li> -<li>128-bit integers are now supported on x86-64 targets.</li> +<li>128-bit integers are now supported on X86-64 targets.</li> <li>The register allocator can now rematerialize PIC-base computations.</li> @@ -439,7 +438,7 @@ href="http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev">LLVMdev list</a>.</p> <ul> <li>The MSIL, IA64, Alpha, SPU, and MIPS backends are experimental.</li> -<li>The LLC "<tt>-filetype=asm</tt>" (the default) is the only supported +<li>The llc "<tt>-filetype=asm</tt>" (the default) is the only supported value for this option.</li> </ul> @@ -573,7 +572,7 @@ programs.</li> inline assembly code</a>.</li> <li><a href="http://llvm.org/PR1658">The C backend violates the ABI of common C++ programs</a>, preventing intermixing between C++ compiled by the CBE and - C++ code compiled with LLC or native compilers.</li> + C++ code compiled with llc or native compilers.</li> <li>The C backend does not support all exception handling constructs.</li> </ul> @@ -597,8 +596,8 @@ llvmdev mailing list if you are interested.</p> <p>The only major language feature of GCC not supported by llvm-gcc is the <tt>__builtin_apply</tt> family of builtins. However, some extensions are only supported on some targets. For example, trampolines are only - supported on some targets, which are used when you take the address of a - nested function.</p> + supported on some targets (these are used when you take the address of a + nested function).</p> <p>If you run into GCC extensions which are not supported, please let us know. </p> @@ -618,8 +617,8 @@ itself, Qt, Mozilla, etc.</p> <ul> <li>Exception handling works well on the X86 and PowerPC targets, including -x86-64 darwin. This works when linking to a libstdc++ compiled by GCC. It is -supported on x86-64 linux, but that is disabled by default in this release.</li> +X86-64 darwin. This works when linking to a libstdc++ compiled by GCC. It is +supported on X86-64 linux, but that is disabled by default in this release.</li> </ul> </div> @@ -634,15 +633,17 @@ supported on x86-64 linux, but that is disabled by default in this release.</li> The llvm-gcc 4.2 Ada compiler works fairly well, however this is not a mature technology and problems should be expected. <ul> -<li>The Ada front-end currently only builds on x86-32. This is mainly due +<li>The Ada front-end currently only builds on X86-32. This is mainly due to lack of trampoline support (pointers to nested functions) on other platforms, -however it <a href="http://llvm.org/PR2006">also fails to build on x86-64</a> +however it <a href="http://llvm.org/PR2006">also fails to build on X86-64</a> which does support trampolines.</li> <li>The Ada front-end <a href="http://llvm.org/PR2007">fails to bootstrap</a>. Workaround: configure with --disable-bootstrap.</li> <li>The c380004 and <a href="http://llvm.org/PR2010">c393010</a> ACATS tests -fail (c380004 also fails with gcc-4.2 mainline).</li> -<li>Many gcc specific Ada tests continue to crash the compiler.</li> +fail (c380004 also fails with gcc-4.2 mainline). When built at -O3, the +<a href="http://llvm.org/PR2421">cxg2021</a> ACATS test also fails.</li> +<li>Some gcc specific Ada tests continue to crash the compiler. The testsuite +reports most tests as having failed even though they pass.</li> <li>The -E binder option (exception backtraces) <a href="http://llvm.org/PR1982">does not work</a> and will result in programs crashing if an exception is raised. Workaround: do not use -E.</li> |