[llvm-commits] CVS: llvm/docs/LangRef.html
Chris Lattner
lattner at cs.uiuc.edu
Thu Mar 2 16:20:11 PST 2006
Changes in directory llvm/docs:
LangRef.html updated: 1.136 -> 1.137
---
Log message:
remove the read/write port/io intrinsics.
---
Diffs of the changes: (+1 -201)
LangRef.html | 202 -----------------------------------------------------------
1 files changed, 1 insertion(+), 201 deletions(-)
Index: llvm/docs/LangRef.html
diff -u llvm/docs/LangRef.html:1.136 llvm/docs/LangRef.html:1.137
--- llvm/docs/LangRef.html:1.136 Thu Mar 2 18:07:20 2006
+++ llvm/docs/LangRef.html Thu Mar 2 18:19:58 2006
@@ -143,13 +143,6 @@
<li><a href="#i_readcyclecounter"><tt>llvm.readcyclecounter</tt>' Intrinsic</a></li>
</ol>
</li>
- <li><a href="#int_os">Operating System Intrinsics</a>
- <ol>
- <li><a href="#i_readport">'<tt>llvm.readport</tt>' Intrinsic</a></li>
- <li><a href="#i_writeport">'<tt>llvm.writeport</tt>' Intrinsic</a></li>
- <li><a href="#i_readio">'<tt>llvm.readio</tt>' Intrinsic</a></li>
- <li><a href="#i_writeio">'<tt>llvm.writeio</tt>' Intrinsic</a></li>
- </ol>
<li><a href="#int_libc">Standard C Library Intrinsics</a>
<ol>
<li><a href="#i_memcpy">'<tt>llvm.memcpy.*</tt>' Intrinsic</a></li>
@@ -3266,199 +3259,6 @@
</div>
-
-<!-- ======================================================================= -->
-<div class="doc_subsection">
- <a name="int_os">Operating System Intrinsics</a>
-</div>
-
-<div class="doc_text">
-<p>
-These intrinsics are provided by LLVM to support the implementation of
-operating system level code.
-</p>
-
-</div>
-
-<!-- _______________________________________________________________________ -->
-<div class="doc_subsubsection">
- <a name="i_readport">'<tt>llvm.readport</tt>' Intrinsic</a>
-</div>
-
-<div class="doc_text">
-
-<h5>Syntax:</h5>
-<pre>
- declare <integer type> %llvm.readport (<integer type> <address>)
-</pre>
-
-<h5>Overview:</h5>
-
-<p>
-The '<tt>llvm.readport</tt>' intrinsic reads data from the specified hardware
-I/O port.
-</p>
-
-<h5>Arguments:</h5>
-
-<p>
-The argument to this intrinsic indicates the hardware I/O address from which
-to read the data. The address is in the hardware I/O address namespace (as
-opposed to being a memory location for memory mapped I/O).
-</p>
-
-<h5>Semantics:</h5>
-
-<p>
-The '<tt>llvm.readport</tt>' intrinsic reads data from the hardware I/O port
-specified by <i>address</i> and returns the value. The address and return
-value must be integers, but the size is dependent upon the platform upon which
-the program is code generated. For example, on x86, the address must be an
-unsigned 16-bit value, and the return value must be 8, 16, or 32 bits.
-</p>
-
-</div>
-
-<!-- _______________________________________________________________________ -->
-<div class="doc_subsubsection">
- <a name="i_writeport">'<tt>llvm.writeport</tt>' Intrinsic</a>
-</div>
-
-<div class="doc_text">
-
-<h5>Syntax:</h5>
-<pre>
- call void (<integer type>, <integer type>)*
- %llvm.writeport (<integer type> <value>,
- <integer type> <address>)
-</pre>
-
-<h5>Overview:</h5>
-
-<p>
-The '<tt>llvm.writeport</tt>' intrinsic writes data to the specified hardware
-I/O port.
-</p>
-
-<h5>Arguments:</h5>
-
-<p>
-The first argument is the value to write to the I/O port.
-</p>
-
-<p>
-The second argument indicates the hardware I/O address to which data should be
-written. The address is in the hardware I/O address namespace (as opposed to
-being a memory location for memory mapped I/O).
-</p>
-
-<h5>Semantics:</h5>
-
-<p>
-The '<tt>llvm.writeport</tt>' intrinsic writes <i>value</i> to the I/O port
-specified by <i>address</i>. The address and value must be integers, but the
-size is dependent upon the platform upon which the program is code generated.
-For example, on x86, the address must be an unsigned 16-bit value, and the
-value written must be 8, 16, or 32 bits in length.
-</p>
-
-</div>
-
-<!-- _______________________________________________________________________ -->
-<div class="doc_subsubsection">
- <a name="i_readio">'<tt>llvm.readio</tt>' Intrinsic</a>
-</div>
-
-<div class="doc_text">
-
-<h5>Syntax:</h5>
-<pre>
- declare <result> %llvm.readio (<ty> * <pointer>)
-</pre>
-
-<h5>Overview:</h5>
-
-<p>
-The '<tt>llvm.readio</tt>' intrinsic reads data from a memory mapped I/O
-address.
-</p>
-
-<h5>Arguments:</h5>
-
-<p>
-The argument to this intrinsic is a pointer indicating the memory address from
-which to read the data. The data must be a
-<a href="#t_firstclass">first class</a> type.
-</p>
-
-<h5>Semantics:</h5>
-
-<p>
-The '<tt>llvm.readio</tt>' intrinsic reads data from a memory mapped I/O
-location specified by <i>pointer</i> and returns the value. The argument must
-be a pointer, and the return value must be a
-<a href="#t_firstclass">first class</a> type. However, certain architectures
-may not support I/O on all first class types. For example, 32-bit processors
-may only support I/O on data types that are 32 bits or less.
-</p>
-
-<p>
-This intrinsic enforces an in-order memory model for llvm.readio and
-llvm.writeio calls on machines that use dynamic scheduling. Dynamically
-scheduled processors may execute loads and stores out of order, re-ordering at
-run time accesses to memory mapped I/O registers. Using these intrinsics
-ensures that accesses to memory mapped I/O registers occur in program order.
-</p>
-
-</div>
-
-<!-- _______________________________________________________________________ -->
-<div class="doc_subsubsection">
- <a name="i_writeio">'<tt>llvm.writeio</tt>' Intrinsic</a>
-</div>
-
-<div class="doc_text">
-
-<h5>Syntax:</h5>
-<pre>
- declare void %llvm.writeio (<ty1> <value>, <ty2> * <pointer>)
-</pre>
-
-<h5>Overview:</h5>
-
-<p>
-The '<tt>llvm.writeio</tt>' intrinsic writes data to the specified memory
-mapped I/O address.
-</p>
-
-<h5>Arguments:</h5>
-
-<p>
-The first argument is the value to write to the memory mapped I/O location.
-The second argument is a pointer indicating the memory address to which the
-data should be written.
-</p>
-
-<h5>Semantics:</h5>
-
-<p>
-The '<tt>llvm.writeio</tt>' intrinsic writes <i>value</i> to the memory mapped
-I/O address specified by <i>pointer</i>. The value must be a
-<a href="#t_firstclass">first class</a> type. However, certain architectures
-may not support I/O on all first class types. For example, 32-bit processors
-may only support I/O on data types that are 32 bits or less.
-</p>
-
-<p>
-This intrinsic enforces an in-order memory model for llvm.readio and
-llvm.writeio calls on machines that use dynamic scheduling. Dynamically
-scheduled processors may execute loads and stores out of order, re-ordering at
-run time accesses to memory mapped I/O registers. Using these intrinsics
-ensures that accesses to memory mapped I/O registers occur in program order.
-</p>
-
-</div>
-
<!-- ======================================================================= -->
<div class="doc_subsection">
<a name="int_libc">Standard C Library Intrinsics</a>
@@ -3895,7 +3695,7 @@
<a href="mailto:sabre at nondot.org">Chris Lattner</a><br>
<a href="http://llvm.cs.uiuc.edu">The LLVM Compiler Infrastructure</a><br>
- Last modified: $Date: 2006/03/03 00:07:20 $
+ Last modified: $Date: 2006/03/03 00:19:58 $
</address>
</body>
</html>
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