From 2cafa0233a7e9fcb5a2d7b05f607409c7fca8224 Mon Sep 17 00:00:00 2001
From: "Duncan P. N. Exon Smith" <dexonsmith@apple.com>
Date: Fri, 1 Jul 2016 15:13:09 +0000
Subject: [PATCH] CodeGen: Avoid iterator conversion in UnreachableBlockElim,
 NFC

Avoid an unnecessary (and implicit) iterator to pointer conversion in
UnreachableBlockElim by using the post-increment operator.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@274355 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/CodeGen/UnreachableBlockElim.cpp | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/lib/CodeGen/UnreachableBlockElim.cpp b/lib/CodeGen/UnreachableBlockElim.cpp
index 8c9631e435b..39aa1e4919a 100644
--- a/lib/CodeGen/UnreachableBlockElim.cpp
+++ b/lib/CodeGen/UnreachableBlockElim.cpp
@@ -184,9 +184,7 @@ bool UnreachableMachineBlockElim::runOnMachineFunction(MachineFunction &F) {
         unsigned Input = phi->getOperand(1).getReg();
         unsigned Output = phi->getOperand(0).getReg();
 
-        MachineInstr* temp = phi;
-        ++phi;
-        temp->eraseFromParent();
+        phi++->eraseFromParent();
         ModifiedPHI = true;
 
         if (Input != Output) {