From 0cec956d814123140759cd25fec8f07e65b43849 Mon Sep 17 00:00:00 2001 From: Evan Cheng Date: Wed, 12 Mar 2008 02:05:05 +0000 Subject: [PATCH] Total brain cramp. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48274 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/CodeGen/SelectionDAG/DAGCombiner.cpp | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp index 45929713369..5a6077a3ca1 100644 --- a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp +++ b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp @@ -1103,7 +1103,7 @@ SDOperand DAGCombiner::visitSUB(SDNode *N) { // fold (sub x, x) -> 0 if (N0 == N1) { - if (!AfterLegalize || !MVT::isVector(VT)) + if (AfterLegalize && ISD::isBuildVectorAllZeros(N0.Val)) // For example, zero vectors might be normalized to a particular vector // type to ensure they are CSE'd. Avoid issuing zero vector nodes of // *unexpected* type after legalization. -- 2.34.1