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authorDuncan Sands <baldrick@free.fr>2007-09-26 15:59:54 +0000
committerDuncan Sands <baldrick@free.fr>2007-09-26 15:59:54 +0000
commitc90d68bf3d6b1c6fa7ca9fb09045a6e1a2e2cab4 (patch)
treebe35ab8397ad034addbb675a50648396a8c0660b
parent9412489650a358ea628a3e18625073c0d30feb38 (diff)
downloadexternal_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.html31
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!