From 38ac062c2f4de93cd4351693f084f0c4474be02c Mon Sep 17 00:00:00 2001 From: Dan Gohman Date: Wed, 1 Oct 2008 15:11:19 +0000 Subject: [PATCH] Fold trivial two-operand tokenfactors where the operands are equal immediately. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56921 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/CodeGen/SelectionDAG/SelectionDAG.cpp | 1 + 1 file changed, 1 insertion(+) diff --git a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp index eba3a2a9ce4..3d0a2d6e50c 100644 --- a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp +++ b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp @@ -2320,6 +2320,7 @@ SDValue SelectionDAG::getNode(unsigned Opcode, MVT VT, // Fold trivial token factors. if (N1.getOpcode() == ISD::EntryToken) return N2; if (N2.getOpcode() == ISD::EntryToken) return N1; + if (N1 == N2) return N1; break; case ISD::CONCAT_VECTORS: // A CONCAT_VECTOR with all operands BUILD_VECTOR can be simplified to