From 048405f510d873b3987bf65bcd5718f275193784 Mon Sep 17 00:00:00 2001
From: Rafael Espindola <rafael.espindola@gmail.com>
Date: Mon, 15 Oct 2012 18:21:07 +0000
Subject: [PATCH] Make sure we iterate over newly created instructions. Fixes
 pr13625. Testcase to follow in one sec.

llvm-svn: 165951
---
 llvm/lib/CodeGen/PeepholeOptimizer.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/llvm/lib/CodeGen/PeepholeOptimizer.cpp b/llvm/lib/CodeGen/PeepholeOptimizer.cpp
index 9099862..a795ac8 100644
--- a/llvm/lib/CodeGen/PeepholeOptimizer.cpp
+++ b/llvm/lib/CodeGen/PeepholeOptimizer.cpp
@@ -527,6 +527,11 @@ bool PeepholeOptimizer::runOnMachineFunction(MachineFunction &MF) {
         SeenMoveImm = true;
       } else {
         Changed |= optimizeExtInstr(MI, MBB, LocalMIs);
+        // optimizeExtInstr might have created new instructions after MI
+        // and before the already incremented MII. Adjust MII so that the
+        // next iteration sees the new instructions.
+        MII = MI;
+        ++MII;
         if (SeenMoveImm)
           Changed |= foldImmediate(MI, MBB, ImmDefRegs, ImmDefMIs);
       }
-- 
2.7.4