From 85c973cda9109056aaafb65ebee89d7062fa45fd Mon Sep 17 00:00:00 2001 From: Evan Cheng Date: Fri, 6 Jan 2006 01:56:02 +0000 Subject: Revert the previous check-in. Leave shl x, 1 along for target to deal with. llvm-svn: 25121 --- llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp | 3 --- 1 file changed, 3 deletions(-) (limited to 'llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp') diff --git a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp index 9770ae232bf..30a4c9f637c 100644 --- a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp +++ b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp @@ -1282,9 +1282,6 @@ SDOperand DAGCombiner::visitSHL(SDNode *N) { // fold (shl x, 0) -> x if (N1C && N1C->isNullValue()) return N0; - // fold (shl x, 1) -> (add x, x) - if (N1C && N1C->getValue() == 1) - return DAG.getNode(ISD::ADD, VT, N0, N0); // if (shl x, c) is known to be zero, return 0 if (N1C && MaskedValueIsZero(SDOperand(N, 0), ~0ULL >> (64-OpSizeInBits),TLI)) return DAG.getConstant(0, VT); -- cgit v1.2.3