[llvm-commits] CVS: llvm/lib/CodeGen/RegAlloc/PhyRegAlloc.cpp

[Brian Gaeke]

Changes in directory llvm/lib/CodeGen/RegAlloc:

PhyRegAlloc.cpp updated: 1.116 -> 1.117

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Log message:

Update head-of-file comment.


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Diffs of the changes:

Index: llvm/lib/CodeGen/RegAlloc/PhyRegAlloc.cpp
diff -u llvm/lib/CodeGen/RegAlloc/PhyRegAlloc.cpp:1.116 llvm/lib/CodeGen/RegAlloc/PhyRegAlloc.cpp:1.117
--- llvm/lib/CodeGen/RegAlloc/PhyRegAlloc.cpp:1.116	Wed Sep 24 13:08:54 2003
+++ llvm/lib/CodeGen/RegAlloc/PhyRegAlloc.cpp	Wed Sep 24 13:16:23 2003
@@ -1,6 +1,15 @@
 //===-- PhyRegAlloc.cpp ---------------------------------------------------===//
 // 
-//  Register allocation for LLVM.
+// Traditional graph-coloring global register allocator currently used
+// by the SPARC back-end.
+//
+// NOTE: This register allocator has some special support
+// for the Reoptimizer, such as not saving some registers on calls to
+// the first-level instrumentation function.
+//
+// NOTE 2: This register allocator can save its state in a global
+// variable in the module it's working on. This feature is not
+// thread-safe; if you have doubts, leave it turned off.
 // 
 //===----------------------------------------------------------------------===//