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:[EMAIL PROTECTED]">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> _______________________________________________ llvm-commits mailing list llvm-commits@cs.uiuc.edu http://lists.cs.uiuc.edu/mailman/listinfo/llvm-commits