commit 2f51464f160cdb2ec0dd9263c1646b5a428664e8
author Fangrui Song <maskray@google.com> Sun Feb 10 09:25:56 2019 +0000
committer Fangrui Song <maskray@google.com> Sun Feb 10 09:25:56 2019 +0000
tree 4b68319f5b5e91fa0338a2f76748919ee5e429e4
parent 7966ea2610475a2ba220c4bbf9b680e8567f6851

[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

lib/Transforms/Utils/Local.cpp

diff --git a/lib/Transforms/Utils/Local.cpp b/lib/Transforms/Utils/Local.cpp
index 062bbcd..933a69c 100644
--- a/lib/Transforms/Utils/Local.cpp
+++ b/lib/Transforms/Utils/Local.cpp
@@ -429,7 +429,7 @@
 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;