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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 | 974bc6682e0dc2669dc72d7f38bb79d6d08adca8 (patch) | |
| tree | 56d27dbd59d510e990e0eab05a976e7b04f4c63c /llvm/lib/CodeGen/RegAlloc | |
| parent | 1542a8b8206709aa0389916309c370579cfdf30c (diff) | |
| download | bcm5719-llvm-974bc6682e0dc2669dc72d7f38bb79d6d08adca8.tar.gz bcm5719-llvm-974bc6682e0dc2669dc72d7f38bb79d6d08adca8.zip | |
Update head-of-file comment.
llvm-svn: 8699
Diffstat (limited to 'llvm/lib/CodeGen/RegAlloc')
| -rw-r--r-- | llvm/lib/CodeGen/RegAlloc/PhyRegAlloc.cpp | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/llvm/lib/CodeGen/RegAlloc/PhyRegAlloc.cpp b/llvm/lib/CodeGen/RegAlloc/PhyRegAlloc.cpp index 53949a7acfe..0c55219979b 100644 --- a/llvm/lib/CodeGen/RegAlloc/PhyRegAlloc.cpp +++ b/llvm/lib/CodeGen/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. // //===----------------------------------------------------------------------===// |
