From 868dd4e66a7e2cc5d6a14ff0975d429703ec18a7 Mon Sep 17 00:00:00 2001
From: Jakob Stoklund Olesen <stoklund@2pi.dk>
Date: Wed, 10 Nov 2010 23:55:56 +0000
Subject: Hook up AliasAnalysis in InlineSpiller. This is used for
 rematerializing constant loads.

llvm-svn: 118741
---
 llvm/lib/CodeGen/RegAllocLinearScan.cpp | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'llvm/lib/CodeGen/RegAllocLinearScan.cpp')

diff --git a/llvm/lib/CodeGen/RegAllocLinearScan.cpp b/llvm/lib/CodeGen/RegAllocLinearScan.cpp
index 947a6c74bd1..81b9070af29 100644
--- a/llvm/lib/CodeGen/RegAllocLinearScan.cpp
+++ b/llvm/lib/CodeGen/RegAllocLinearScan.cpp
@@ -15,6 +15,7 @@
 #include "VirtRegMap.h"
 #include "VirtRegRewriter.h"
 #include "Spiller.h"
+#include "llvm/Analysis/AliasAnalysis.h"
 #include "llvm/Function.h"
 #include "llvm/CodeGen/CalcSpillWeights.h"
 #include "llvm/CodeGen/LiveIntervalAnalysis.h"
@@ -193,6 +194,8 @@ namespace {
 
     virtual void getAnalysisUsage(AnalysisUsage &AU) const {
       AU.setPreservesCFG();
+      AU.addRequired<AliasAnalysis>();
+      AU.addPreserved<AliasAnalysis>();
       AU.addRequired<LiveIntervals>();
       AU.addPreserved<SlotIndexes>();
       if (StrongPHIElim)
@@ -391,6 +394,7 @@ INITIALIZE_PASS_DEPENDENCY(LiveStacks)
 INITIALIZE_PASS_DEPENDENCY(MachineLoopInfo)
 INITIALIZE_PASS_DEPENDENCY(VirtRegMap)
 INITIALIZE_AG_DEPENDENCY(RegisterCoalescer)
+INITIALIZE_AG_DEPENDENCY(AliasAnalysis)
 INITIALIZE_PASS_END(RALinScan, "linearscan-regalloc",
                 "Linear Scan Register Allocator", false, false)
 
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