From 96e809c47d3bd433e1a26d07bef2882c5b8247e7 Mon Sep 17 00:00:00 2001 From: Chris Lattner Date: Fri, 21 Jan 2005 18:01:22 +0000 Subject: Unary token factor nodes are unneeded. llvm-svn: 19727 --- llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp | 2 ++ 1 file changed, 2 insertions(+) (limited to 'llvm/lib/CodeGen') diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp b/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp index c91586b4d42..3d7d3bfa6fa 100644 --- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp +++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp @@ -511,6 +511,8 @@ SDOperand SelectionDAG::getNode(unsigned Opcode, MVT::ValueType VT, unsigned OpOpcode = Operand.Val->getOpcode(); switch (Opcode) { + case ISD::TokenFactor: + return Operand; // Factor of one node? No factor. case ISD::SIGN_EXTEND: if (Operand.getValueType() == VT) return Operand; // noop extension if (OpOpcode == ISD::SIGN_EXTEND || OpOpcode == ISD::ZERO_EXTEND) -- cgit v1.2.3