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| author | Brian Gaeke <gaeke@uiuc.edu> | 2003-09-24 18:16:23 +0000 |
|---|---|---|
| committer | Brian Gaeke <gaeke@uiuc.edu> | 2003-09-24 18:16:23 +0000 |
| commit | 222bd53c2c25d5612f3c56f791fefa3096de7872 (patch) | |
| tree | e203d91ce13b1efe429d52de4eab5cc88747353d /lib/Target/SparcV9/RegAlloc | |
| parent | 6a256cc37cc4b1b6b7e19be8eede976fc75c15ca (diff) | |
| download | external_llvm-222bd53c2c25d5612f3c56f791fefa3096de7872.zip external_llvm-222bd53c2c25d5612f3c56f791fefa3096de7872.tar.gz external_llvm-222bd53c2c25d5612f3c56f791fefa3096de7872.tar.bz2 | |
Update head-of-file comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8699 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/SparcV9/RegAlloc')
| -rw-r--r-- | lib/Target/SparcV9/RegAlloc/PhyRegAlloc.cpp | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/lib/Target/SparcV9/RegAlloc/PhyRegAlloc.cpp b/lib/Target/SparcV9/RegAlloc/PhyRegAlloc.cpp index 53949a7..0c55219 100644 --- a/lib/Target/SparcV9/RegAlloc/PhyRegAlloc.cpp +++ b/lib/Target/SparcV9/RegAlloc/PhyRegAlloc.cpp @@ -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. // //===----------------------------------------------------------------------===// |