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fix things pointed out by Dan!

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85310 91177308-0d34-0410-b5e6-96231b3b80d8
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Chris Lattner 2009-10-27 21:19:13 +00:00
parent c6f44369c3
commit f9d078e336
1 changed files with 9 additions and 4 deletions
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docs/LangRef.html
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@ -83,7 +83,7 @@
<li><a href="#complexconstants">Complex Constants</a></li>
<li><a href="#globalconstants">Global Variable and Function Addresses</a></li>
<li><a href="#undefvalues">Undefined Values</a></li>
<li><a href="#blockaddress">Address of Basic Block</a></li>
<li><a href="#blockaddress">Addresses of Basic Blocks</a></li>
<li><a href="#constantexprs">Constant Expressions</a></li>
<li><a href="#metadata">Embedded Metadata</a></li>
</ol>
@ -2172,8 +2172,8 @@ has undefined behavior.</p>
</div>
<!-- ======================================================================= -->
<div class="doc_subsection"><a name="blockaddress">Address of Basic
Block</a></div>
<div class="doc_subsection"><a name="blockaddress">Addresses of Basic
Blocks</a></div>
<div class="doc_text">
<p><b><tt>blockaddress(@function, %block)</tt></b></p>
@ -2186,7 +2186,12 @@ has undefined behavior.</p>
'<a href="#i_indbr"><tt>indbr</tt></a>' instruction or for comparisons
against null. Pointer equality tests between labels addresses is undefined
behavior - though, again, comparison against null is ok, and no label is
equal to the null pointer. Some targets may provide defined semantics when
equal to the null pointer. This may also be passed around as an opaque
pointer sized value as long as the bits are not inspected. This allows
ptrtoint and arithmetic to be performed on these values so long as the
original value is reconsistituted before the <tt>indbr</tt>.</p>
<p>Finally, some targets may provide defined semantics when
using the value as the operand to an inline assembly, but that is target
specific.
</p>