From 695b78b5f723e220fac20eb80bffa075e77647e3 Mon Sep 17 00:00:00 2001
From: Chris Lattner
The "Support/Debug.h" +
The "llvm/Support/Debug.h" file provides a macro named DEBUG() that is a much nicer solution to this problem. Basically, you can put arbitrary code into the argument of the DEBUG macro, and it is only executed if 'opt' (or any other @@ -427,7 +427,7 @@ option as follows:
Of course, in practice, you should only set DEBUG_TYPE at the top of a file, to specify the debug type for the entire module (if you do this before -you #include "Support/Debug.h", you don't have to insert the ugly +you #include "llvm/Support/Debug.h", you don't have to insert the ugly #undef's). Also, you should use names more meaningful than "foo" and "bar", because there is no system in place to ensure that names do not conflict. If two different modules use the same string, they will all be turned @@ -446,7 +446,7 @@ even if the source lives in multiple files.
The "Support/Statistic.h" file +href="/doxygen/Statistic_8h-source.html">llvm/ADT/Statistic.h" file provides a template named Statistic that is used as a unified way to keep track of what the LLVM compiler is doing and how effective various optimizations are. It is useful to see what optimizations are contributing to