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install.texi: Add doc for --enable-checking=df. 

2008-01-20  Kenneth Zadeck <zadeck@naturalbridge.com>

	* doc/install.texi: Add doc for --enable-checking=df.

From-SVN: r131685
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Kenneth Zadeck 2008-01-21 01:09:04 +00:00 committed by Kenneth Zadeck
parent 4f8aaa248f
commit 604f825c83
2 changed files with 6 additions and 2 deletions
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gcc/ChangeLog
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@ -1,3 +1,7 @@
2008-01-20 Kenneth Zadeck <zadeck@naturalbridge.com>
* doc/install.texi: Add doc for --enable-checking=df.
2008-01-20 Kaz Kojima <kkojima@gcc.gnu.org>
PR rtl-optimization/34808

4
gcc/doc/install.texi
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@ -1271,12 +1271,12 @@ checks available are @samp{yes} (most common checks
all), @samp{all} (all but @samp{valgrind}), @samp{release} (cheapest
checks @samp{assert,runtime}) or @samp{none} (same as @samp{no}).
Individual checks can be enabled with these flags @samp{assert},
@samp{fold}, @samp{gc}, @samp{gcac} @samp{misc}, @samp{rtl},
@samp{df}, @samp{fold}, @samp{gc}, @samp{gcac} @samp{misc}, @samp{rtl},
@samp{rtlflag}, @samp{runtime}, @samp{tree}, and @samp{valgrind}.
The @samp{valgrind} check requires the external @command{valgrind}
simulator, available from @uref{http://valgrind.org/}. The
@samp{rtl}, @samp{gcac} and @samp{valgrind} checks are very expensive.
@samp{df}, @samp{rtl}, @samp{gcac} and @samp{valgrind} checks are very expensive.
To disable all checking, @samp{--disable-checking} or
@samp{--enable-checking=none} must be explicitly requested. Disabling
assertions will make the compiler and runtime slightly faster but