From: Matt Arsenault <Matthew.Arsenault@amd.com>
Date: Wed, 4 Sep 2019 16:19:29 +0000 (+0000)
Subject: GlobalISel: Define GINodeEquiv for undef
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=4610ea6eb2ff8d706ee299797b753bbf7c480065;p=llvm

GlobalISel: Define GINodeEquiv for undef

AMDGPU uses this for undef vector elements in some patterns which will
be enabled in a future patch.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@370918 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/include/llvm/Target/GlobalISel/SelectionDAGCompat.td b/include/llvm/Target/GlobalISel/SelectionDAGCompat.td
index 87f0aa4aa1b..e06de6068d6 100644
--- a/include/llvm/Target/GlobalISel/SelectionDAGCompat.td
+++ b/include/llvm/Target/GlobalISel/SelectionDAGCompat.td
@@ -50,6 +50,7 @@ def : GINodeEquiv<G_BITCAST, bitconvert>;
 // G_PTRTOINT - SelectionDAG has no equivalent.
 def : GINodeEquiv<G_CONSTANT, imm>;
 def : GINodeEquiv<G_FCONSTANT, fpimm>;
+def : GINodeEquiv<G_IMPLICIT_DEF, undef>;
 def : GINodeEquiv<G_ADD, add>;
 def : GINodeEquiv<G_SUB, sub>;
 def : GINodeEquiv<G_MUL, mul>;