Remove dead code, now that -fvia-c is a no-op

[ghc-hetmet.git] / docs / users_guide / using.xml

diff --git a/docs/users_guide/using.xml b/docs/users_guide/using.xml
index 06862e7..8b08d9d 100644 (file)
--- a/docs/users_guide/using.xml
+++ b/docs/users_guide/using.xml
@@ -1701,7 +1701,7 @@ f "2"    = 2
       <para>We don't use a <option>-O*</option> flag for day-to-day
       work.  We use <option>-O</option> to get respectable speed;
       e.g., when we want to measure something.  When we want to go for
-      broke, we tend to use <option>-O2 -fvia-C</option> (and we go for
+      broke, we tend to use <option>-O2</option> (and we go for
       lots of coffee breaks).</para>
 
       <para>The easiest way to see what <option>-O</option> (etc.)
@@ -2203,27 +2203,6 @@ f "2"    = 2
         </listitem>
       </varlistentry>
 
-      <varlistentry>
-       <term><option>-monly-[32]-regs</option>:</term>
-       <listitem>
-         <para>(x86 only)<indexterm><primary>-monly-N-regs
-          option (iX86 only)</primary></indexterm> GHC tries to
-          &ldquo;steal&rdquo; four registers from GCC, for performance
-          reasons; it almost always works.  However, when GCC is
-          compiling some modules with four stolen registers, it will
-          crash, probably saying:
-
-<screen>
-Foo.hc:533: fixed or forbidden register was spilled.
-This may be due to a compiler bug or to impossible asm
-statements or clauses.
-</screen>
-
-          Just give some registers back with
-          <option>-monly-N-regs</option>.  Try `3' first, then `2'.
-          If `2' doesn't work, please report the bug to us.</para>
-       </listitem>
-      </varlistentry>
     </variablelist>
 
   </sect1>