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| author | Chris Lattner <sabre@nondot.org> | 2005-10-09 22:59:08 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2005-10-09 22:59:08 +0000 |
| commit | a19cea061e661277489655f5d0777360fb9fe736 (patch) | |
| tree | b204747657d242fc050e5210e0c8930cb0e1b77d | |
| parent | ee899e6bfc854adefdbfd6631e206d18fd43ab81 (diff) | |
add a todo for something I noticed
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23679 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/CodeGen/SelectionDAG/DAGCombiner.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp index 069a8f9176..60bb6c6795 100644 --- a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp +++ b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp @@ -40,6 +40,10 @@ // FIXME: divide by zero is currently left unfolded. do we want to turn this // into an undef? // FIXME: select ne (select cc, 1, 0), 0, true, false -> select cc, true, false +// FIXME: sext_inreg(SRL) -> SRA: +// int %simple(uint %X) { %tmp.4 = shr uint %X, ubyte 16 +// %tmp.5 = cast uint %tmp.4 to short %tmp.6 = cast short %tmp.5 to int +// ret int %tmp.6 } // //===----------------------------------------------------------------------===// |