[llvm-commits] [llvm] r132821 - /llvm/trunk/lib/CodeGen/TailDuplication.cpp

Rafael Espindola rafael.espindola at gmail.com
Thu Jun 9 16:51:45 PDT 2011


Author: rafael
Date: Thu Jun  9 18:51:45 2011
New Revision: 132821

URL: http://llvm.org/viewvc/llvm-project?rev=132821&view=rev
Log:
Avoid a gcc warning about multiline comments.

Modified:
    llvm/trunk/lib/CodeGen/TailDuplication.cpp

Modified: llvm/trunk/lib/CodeGen/TailDuplication.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/TailDuplication.cpp?rev=132821&r1=132820&r2=132821&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/TailDuplication.cpp (original)
+++ llvm/trunk/lib/CodeGen/TailDuplication.cpp Thu Jun  9 18:51:45 2011
@@ -691,13 +691,13 @@
 
   // Handle the nasty case in that we duplicated a block that is part of a loop
   // into some but not all of its predecessors. For example:
-  //    1 -> 2 <-> 3
-  //          \
-  //           \---> rest
+  //    1 -> 2 <-> 3                 |
+  //          \                      |
+  //           \---> rest            |
   // if we duplicate 2 into 1 but not into 3, we end up with
-  // 12 -> 3 <-> 2 -> rest
-  //   \             /
-  //    \----->-----/
+  // 12 -> 3 <-> 2 -> rest           |
+  //   \             /               |
+  //    \----->-----/                |
   // If there was a "var = phi(1, 3)" in 2, it has to be ultimately replaced
   // with a phi in 3 (which now dominates 2).
   // What we do here is introduce a copy in 3 of the register defined by the





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