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author | Duncan Sands <baldrick@free.fr> | 2007-09-26 15:59:54 +0000 |
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committer | Duncan Sands <baldrick@free.fr> | 2007-09-26 15:59:54 +0000 |
commit | c90d68bf3d6b1c6fa7ca9fb09045a6e1a2e2cab4 (patch) | |
tree | be35ab8397ad034addbb675a50648396a8c0660b | |
parent | 9412489650a358ea628a3e18625073c0d30feb38 (diff) | |
download | external_llvm-c90d68bf3d6b1c6fa7ca9fb09045a6e1a2e2cab4.zip external_llvm-c90d68bf3d6b1c6fa7ca9fb09045a6e1a2e2cab4.tar.gz external_llvm-c90d68bf3d6b1c6fa7ca9fb09045a6e1a2e2cab4.tar.bz2 |
Various cleanups. Especially, EH is turned on by default!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42356 91177308-0d34-0410-b5e6-96231b3b80d8
-rw-r--r-- | docs/ReleaseNotes.html | 31 |
1 files changed, 17 insertions, 14 deletions
diff --git a/docs/ReleaseNotes.html b/docs/ReleaseNotes.html index 71b38cb..aa11404 100644 --- a/docs/ReleaseNotes.html +++ b/docs/ReleaseNotes.html @@ -70,11 +70,11 @@ It includes many features and refinements from LLVM 2.0.</p> <div class="doc_text"> -<p>LLVM 2.1 brings two new beta C front-ends. First, Duncan, Anton and Devang -has started syncing up llvm-gcc with GCC 4.2, yielding "llvm-gcc 4.2" (creative, -huh?). llvm-gcc 4.2 has the promise to bring much better FORTRAN and Ada -support to LLVM as well as features like atomic builtins, OpenMP, and many other -things. Check it out!</p> +<p>LLVM 2.1 brings two new beta C front-ends. First, a new version of llvm-gcc +based on GCC 4.2, innovatively called "llvm-gcc-4.2". This promises to bring +FORTRAN and Ada support to LLVM as well as features like atomic builtins and +OpenMP. None of these actually work yet, but don't let that stop you checking +it out!</p> <p>Second, LLVM now includes its own native C and Objective-C front-end (C++ is in progress, but is not very far along) code named "<a @@ -211,7 +211,7 @@ optimizer, speeding it up and making it more aggressive. For example:</p> <ul> <li>Duncan and Anton made significant progress chasing down a number of problems with C++ Zero-Cost exception handling in llvm-gcc 4.0 and 4.2. It is now at - the point where it "just works" on linux/x86-32 and has partial support on + the point where it "just works" on linux/X86-32 and has partial support on other targets.</li> <li>Devang and Duncan fixed a huge number of bugs relating to bitfields, pragma @@ -226,7 +226,7 @@ optimizer, speeding it up and making it more aggressive. For example:</p> "restrict" pointer arguments to functions.</li> <li>Duncan contributed support for trampolines (taking the address of a nested - functions), currently this is only supported in the x86 target.</li> + function). Currently this is only supported on the X86 target.</li> <li>Lauro Ramos Venancio contributed support to encode alignment info in load and store instructions, the foundation for other alignment-related @@ -350,7 +350,6 @@ components, please contact us on the <a href="http://lists.cs.uiuc.edu/mailman/l <ul> <li>The <tt>-cee</tt> pass is known to be buggy, and may be removed in a future release.</li> -<li>C++ EH support is disabled for this release.</li> <li>The MSIL backend is experimental.</li> <li>The IA64 code generator is experimental.</li> <li>The Alpha backend is experimental.</li> @@ -402,7 +401,7 @@ compilation, and lacks support for debug information.</li> <ul> <li>Thumb mode works only on ARMv6 or higher processors. On sub-ARMv6 -processors, thumb program can crash or produces wrong +processors, thumb programs can crash or produce wrong results (<a href="http://llvm.org/PR1388">PR1388</a>).</li> <li>Compilation for ARM Linux OABI (old ABI) is supported, but not fully tested. </li> @@ -526,9 +525,12 @@ bits.</p></li> <li><p>llvm-gcc <b>partially</b> supports these GCC extensions:</p> <ol> - <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Nested-Functions.html#Nested%20Functions">Nested Functions</a>: As in Algol and Pascal, lexical scoping of functions.<br> - Nested functions are supported, but llvm-gcc does not support non-local - gotos or taking the address of a nested function.</li> + <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Nested-Functions.html#Nested%20Functions">Nested Functions</a>: + + As in Algol and Pascal, lexical scoping of functions. + Nested functions are supported, but llvm-gcc does not support + taking the address of a nested function (except on the X86 target) + or non-local gotos.</li> <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Function-Attributes.html#Function%20Attributes">Function Attributes</a>: @@ -620,8 +622,9 @@ tested and works for a number of non-trivial programs, including LLVM itself, Qt, Mozilla, etc.</p> <ul> -<li>llvm-gcc4 only has partial support for <a href="http://llvm.org/PR870">C++ -Exception Handling</a>, and it is not enabled by default.</li> +<li>Exception handling only works well on the linux/x86-32 target. +In some cases, illegally throwing an exception does not result +in a call to terminate.</li> <!-- NO EH Support! |