From 63ddbc2fbc31f2ef32f61d7c603d42bb92a7dcbd Mon Sep 17 00:00:00 2001
From: Simon Pilgrim <llvm-dev@redking.me.uk>
Date: Fri, 20 Sep 2019 21:27:49 +0000
Subject: [PATCH] [PPC] PPCLoopPreIncPrep - silence static analyzer null
 dereference warning.

llvm-svn: 372430
---
 llvm/lib/Target/PowerPC/PPCLoopPreIncPrep.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/llvm/lib/Target/PowerPC/PPCLoopPreIncPrep.cpp b/llvm/lib/Target/PowerPC/PPCLoopPreIncPrep.cpp
index 4d45d96..a3c52a8 100644
--- a/llvm/lib/Target/PowerPC/PPCLoopPreIncPrep.cpp
+++ b/llvm/lib/Target/PowerPC/PPCLoopPreIncPrep.cpp
@@ -481,7 +481,7 @@ bool PPCLoopPreIncPrep::runOnLoop(Loop *L) {
         if (PtrIP && isa<Instruction>(NewBasePtr) &&
             cast<Instruction>(NewBasePtr)->getParent() == PtrIP->getParent())
           PtrIP = nullptr;
-        else if (isa<PHINode>(PtrIP))
+        else if (PtrIP && isa<PHINode>(PtrIP))
           PtrIP = &*PtrIP->getParent()->getFirstInsertionPt();
         else if (!PtrIP)
           PtrIP = I->Instr;
-- 
2.7.4