From 3d4ed0857437c2bbea4dcabc949d180860433d1d Mon Sep 17 00:00:00 2001
From: Andrew Trick <atrick@apple.com>
Date: Mon, 2 Jul 2012 21:55:12 +0000
Subject: [PATCH] misched: allow NULL InstrItineraries.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159599 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/CodeGen/MachineScheduler.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/CodeGen/MachineScheduler.cpp b/lib/CodeGen/MachineScheduler.cpp
index 18e61e0a78e..847bf1e76e3 100644
--- a/lib/CodeGen/MachineScheduler.cpp
+++ b/lib/CodeGen/MachineScheduler.cpp
@@ -408,6 +408,7 @@ public:
 
   /// getNumMicroOps - Return the number of issue slots required for this MI.
   unsigned getNumMicroOps(MachineInstr *MI) const {
+    if (!InstrItins) return 1;
     int UOps = InstrItins->getNumMicroOps(MI->getDesc().getSchedClass());
     return (UOps >= 0) ? UOps : TII->getNumMicroOps(InstrItins, MI);
   }