From 46a9dc2e3e2c687a43abbed253d0298fbcc67baa Mon Sep 17 00:00:00 2001
From: Sanjay Patel <spatel@rotateright.com>
Date: Sun, 7 Oct 2018 15:18:30 +0000
Subject: [PATCH] [DAGCombiner] shorten code for bitcast+fabs fold; NFC

llvm-svn: 343939
---
 llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
index ec7f63a3d3ff..c91aa83b421c 100644
--- a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
@@ -12162,11 +12162,8 @@ SDValue DAGCombiner::visitFABS(SDNode *N) {
   if (N0.getOpcode() == ISD::FNEG || N0.getOpcode() == ISD::FCOPYSIGN)
     return DAG.getNode(ISD::FABS, SDLoc(N), VT, N0.getOperand(0));
 
-  // Transform fabs(bitconvert(x)) -> bitconvert(x & ~sign) to avoid loading
-  // constant pool values.
-  if (!TLI.isFAbsFree(VT) &&
-      N0.getOpcode() == ISD::BITCAST &&
-      N0.getNode()->hasOneUse()) {
+  // fabs(bitcast(x)) -> bitcast(x & ~sign) to avoid constant pool loads.
+  if (!TLI.isFAbsFree(VT) && N0.getOpcode() == ISD::BITCAST && N0.hasOneUse()) {
     SDValue Int = N0.getOperand(0);
     EVT IntVT = Int.getValueType();
     if (IntVT.isInteger() && !IntVT.isVector()) {