From: Fangrui Song <maskray@google.com>
Date: Sun, 10 Feb 2019 09:25:56 +0000 (+0000)
Subject: [Local] Delete a redundant check. NFC
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=2f51464f160cdb2ec0dd9263c1646b5a428664e8;p=llvm

[Local] Delete a redundant check. NFC

isInstructionTriviallyDead also performs the use_empty() check.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@353637 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Transforms/Utils/Local.cpp b/lib/Transforms/Utils/Local.cpp
index 062bbcdae2c..933a69caaaa 100644
--- a/lib/Transforms/Utils/Local.cpp
+++ b/lib/Transforms/Utils/Local.cpp
@@ -429,7 +429,7 @@ bool llvm::wouldInstructionBeTriviallyDead(Instruction *I,
 bool llvm::RecursivelyDeleteTriviallyDeadInstructions(
     Value *V, const TargetLibraryInfo *TLI, MemorySSAUpdater *MSSAU) {
   Instruction *I = dyn_cast<Instruction>(V);
-  if (!I || !I->use_empty() || !isInstructionTriviallyDead(I, TLI))
+  if (!I || !isInstructionTriviallyDead(I, TLI))
     return false;
 
   SmallVector<Instruction*, 16> DeadInsts;