From: Bing1 Yu <bing1.yu@intel.com>
Date: Mon, 10 Apr 2023 09:09:35 +0000 (+0800)
Subject: [X86][AMX] Add check for potentially dereferencing null return value
X-Git-Tag: upstream/17.0.6~12100
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=aaddf43fc3d80f8cc415497f5b250dddb3d103ac;p=platform%2Fupstream%2Fllvm.git

[X86][AMX] Add check for potentially dereferencing null return value

Reviewed By: xiangzhangllvm

Differential Revision: https://reviews.llvm.org/D147921
---

diff --git a/llvm/lib/Target/X86/X86LowerAMXType.cpp b/llvm/lib/Target/X86/X86LowerAMXType.cpp
index 547f897..6966ee4 100644
--- a/llvm/lib/Target/X86/X86LowerAMXType.cpp
+++ b/llvm/lib/Target/X86/X86LowerAMXType.cpp
@@ -488,7 +488,7 @@ static void replaceWithTileLoad(Use &U, Value *Ptr, bool IsPHI = false) {
   // Get tile shape.
   IntrinsicInst *II = nullptr;
   if (IsPHI) {
-    Value *PhiOp = dyn_cast<PHINode>(V)->getIncomingValue(0);
+    Value *PhiOp = cast<PHINode>(V)->getIncomingValue(0);
     II = cast<IntrinsicInst>(PhiOp);
   } else {
     II = cast<IntrinsicInst>(V);