From 362621c7ae34631096af78e07a78bc4e339b6f3c Mon Sep 17 00:00:00 2001 From: Chris Lattner Date: Sun, 4 Mar 2007 20:01:46 +0000 Subject: eliminate some ops if they have an undef RHS llvm-svn: 34908 --- llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp | 2 ++ 1 file changed, 2 insertions(+) (limited to 'llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp') diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp b/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp index 2679a8ccd8a..0de71203e4d 100644 --- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp +++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp @@ -1325,6 +1325,8 @@ SDOperand SelectionDAG::getNode(unsigned Opcode, MVT::ValueType VT, if (N2.getOpcode() == ISD::UNDEF) { switch (Opcode) { case ISD::ADD: + case ISD::ADDC: + case ISD::ADDE: case ISD::SUB: case ISD::FADD: case ISD::FSUB: -- cgit v1.2.3