From: Evan Cheng <evan.cheng@apple.com>
Date: Wed, 4 Jun 2008 09:17:16 +0000 (+0000)
Subject: LowerSubregs should not clobber any analysis.
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=d8a46e3a74251989f282ca186893dc90bf48e26d;p=oota-llvm.git

LowerSubregs should not clobber any analysis.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51933 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/CodeGen/LowerSubregs.cpp b/lib/CodeGen/LowerSubregs.cpp
index 0710a353006..aaadda1cb1c 100644
--- a/lib/CodeGen/LowerSubregs.cpp
+++ b/lib/CodeGen/LowerSubregs.cpp
@@ -30,6 +30,10 @@ namespace {
       return "Subregister lowering instruction pass";
     }
 
+    void getAnalysisUsage(AnalysisUsage &AU) const {
+      AU.setPreservesAll();
+    }
+
     /// runOnMachineFunction - pass entry point
     bool runOnMachineFunction(MachineFunction&);