Add note about returns_twice magic removal from LLVM itself.

llvm-svn: 155657
2012-04-26 20:10:07 +00:00 · 2012-04-26 20:10:07 +00:00 · 18ad5b28b7
parent 9bb634df36
commit 18ad5b28b7
1 changed files with 3 additions and 0 deletions
--- a/llvm/docs/ReleaseNotes.html
+++ b/llvm/docs/ReleaseNotes.html
@ -536,6 +536,9 @@ syntax, there are still significant gaps in that support.</p>
  <li>The <tt>unwind</tt> instruction is now gone. With the introduction of the
      new exception handling system in LLVM 3.0, the <tt>unwind</tt> instruction
      became obsolete.</li>
+  <li>LLVM 3.0 and earlier automatically added the returns_twice fo functions
+      like setjmp based on the name. This functionality was removed in 3.1.
+      This affects Clang users, if -ffreestanding is used.</li>
  <li>....</li>
 </ul>