From bbeeb2a61ea19fbb5449260165b56c40fdc4860b Mon Sep 17 00:00:00 2001
From: Evan Cheng <evan.cheng@apple.com>
Date: Mon, 22 Sep 2008 20:58:04 +0000
Subject: Mark several codegen passes as preserving all analysis.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56469 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/CodeGen/LowerSubregs.cpp | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'lib/CodeGen/LowerSubregs.cpp')

diff --git a/lib/CodeGen/LowerSubregs.cpp b/lib/CodeGen/LowerSubregs.cpp
index 6e115dd..5430d4f 100644
--- a/lib/CodeGen/LowerSubregs.cpp
+++ b/lib/CodeGen/LowerSubregs.cpp
@@ -30,6 +30,11 @@ namespace {
       return "Subregister lowering instruction pass";
     }
 
+    virtual void getAnalysisUsage(AnalysisUsage &AU) const {
+      AU.setPreservesAll();
+      MachineFunctionPass::getAnalysisUsage(AU);
+    }
+
     /// runOnMachineFunction - pass entry point
     bool runOnMachineFunction(MachineFunction&);
     
-- 
cgit v1.1