Document the subtarget features better, make sure that 64-bit mode, 64-bit

[oota-llvm.git] / docs / CFEBuildInstrs.html

diff --git a/docs/CFEBuildInstrs.html b/docs/CFEBuildInstrs.html
index 0622824956a9e8be16bfb056013c743b8f69960e..c354213687cd72031b74eef37a1f59df12507ad0 100644 (file)
--- a/docs/CFEBuildInstrs.html
+++ b/docs/CFEBuildInstrs.html
@@ -68,9 +68,10 @@ located in a top-level directory (like <tt>/cygdrive/c/llvm</tt> and
 and Settings" directory).  We welcome patches to fix this issue.
 </p>
 <p>It has been found that the GCC 3.3.3 compiler provided with recent Cygwin
-versions is incapable of compiling the LLVM CFE correctly. If your Cygwin
+versions is incapable of compiling the LLVM GCC front-end correctly. If your
+Cygwin
 installation includes GCC 3.3.3, we <i>strongly</i> recommend that you download
-GCC 3.4.3, build it separately, and use it for compiling LLVM CFE. This has been
+GCC 3.4.3, build it separately, and use it for compiling the LLVM GCC front-end. This has been
 shown to work correctly.</p>
 <p>Some versions of Cygwin utilize an experimental version of GNU binutils that
 will cause the GNU <tt>ld</tt> linker to fail an assertion when linking
@@ -103,7 +104,8 @@ invalid code.  Instead, use the system assembler and linker.
 <li><p>Configure and build the LLVM libraries and tools. There are two ways to
 do this: either with <i>objdir</i> == <i>srcdir</i> or
 <i>objdir</i> != <i>srcdir</i>. It is recommended 
-that <i>srcdir</i> not be the same as <i>objdir</i>:</p>
+that <i>srcdir</i> be the same as <i>objdir</i> for your LLVM tree (but note
+that you should always use <i>srcdir</i> != <i>objdir</i> for llvm-gcc):</p>
 <ul>
   <li>With <i>objdir</i> != <i>srcdir</i>:<pre>
  % cd <i>objdir</i>
@@ -129,7 +131,7 @@ of permissions. Specify a path into which LLVM can be installed (e.g.
 </pre></li>
 
 <li><p>Unpack the C/C++ front-end source into cfrontend/src, either by
-       untar'ing an llvm-gcc.tar.gz file or checking out CVS into this
+       untar'ing a cfrontend.source.tar.gz file or checking out CVS into this
        directory.</p></li>
 
 <li><p>Make "build" and "install" directories as siblings of the "src" tree:</p>
@@ -146,6 +148,7 @@ of permissions. Specify a path into which LLVM can be installed (e.g.
 
 <p>
 <b>Linux/x86:</b><br>
+<b>Linux/IA-64:</b><br>
 <b>MacOS X/PowerPC</b> (requires dlcompat library):<br>
 <b>AIX/PowerPC:</b>
 </p>
@@ -170,17 +173,24 @@ of permissions. Specify a path into which LLVM can be installed (e.g.
 <p><b>Solaris/SPARC:</b></p>
 
 <p>
-For Solaris/SPARC, LLVM only supports the SPARC V9 architecture.  Therefore,
-the configure command line should specify sparcv9, as shown below. Also,
+The GCC front-end can be configured for either SPARC V8 (32 bit) or SPARC V9 (64
+bit).  This changes, among other things, the sizes of integer types and the
+macros defined for conditional compilation.
+</p>
+
+<p>
+The SPARC V8 ABI support is more robust than the V9 ABI support and can generate
+SPARC V9 code.  It is highly recommended that you use the V8 ABI with LLVM, as
+shown below.  Also,
 note that Solaris has trouble with various wide (multibyte) character
 functions from C as referenced from C++, so we typically configure with
---disable-c-mbchar (cf. <a href="http://llvm.cs.uiuc.edu/PR206">Bug 206</a>).
+--disable-c-mbchar (cf. <a href="http://llvm.org/PR206">Bug 206</a>).
 </p>
 
 <pre>
  % cd build
  % ../src/configure --prefix=$CFEINSTALL --disable-threads --disable-nls \
-   --disable-shared --enable-languages=c,c++ --host=sparcv9-sun-solaris2.8 \
+   --disable-shared --enable-languages=c,c++ --host=sparc-sun-solaris2.8 \
    --disable-c-mbchar --program-prefix=llvm-
  % gmake all; gmake install
 </pre>
@@ -302,7 +312,7 @@ Developed by:
 
     University of Illinois at Urbana-Champaign
 
-    http://llvm.cs.uiuc.edu
+    http://llvm.org
 
 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
@@ -346,7 +356,7 @@ purpose.  It is provided "as is" without express or implied warranty.
   src="http://www.w3.org/Icons/valid-html401" alt="Valid HTML 4.01!"></a>
 
   Brian Gaeke<br>
-  <a href="http://llvm.cs.uiuc.edu">LLVM Compiler Infrastructure</a><br>
+  <a href="http://llvm.org">LLVM Compiler Infrastructure</a><br>
   Last modified: $Date$
 </address>