Use setPreservesAll and setPreservesCFG in CodeGen passes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77754 91177308-0d34-0410-b5e6-96231b3b80d8

17 files changed, 31 insertions, 14 deletions

diff --git a/lib/CodeGen/AsmPrinter/AsmPrinter.cpp b/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
index e19631f..ebc4b24 100644
--- a/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
+++ b/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
@@ -169,6 +169,7 @@ void AsmPrinter::SwitchToSection(const MCSection *NS) {
 }
 
 void AsmPrinter::getAnalysisUsage(AnalysisUsage &AU) const {
+  AU.setPreservesAll();
   MachineFunctionPass::getAnalysisUsage(AU);
   AU.addRequired<GCModuleInfo>();
 }
diff --git a/lib/CodeGen/LiveIntervalAnalysis.cpp b/lib/CodeGen/LiveIntervalAnalysis.cpp
index 57bcfb5..2c7cc76 100644
--- a/lib/CodeGen/LiveIntervalAnalysis.cpp
+++ b/lib/CodeGen/LiveIntervalAnalysis.cpp
@@ -67,6 +67,7 @@ char LiveIntervals::ID = 0;
 static RegisterPass<LiveIntervals> X("liveintervals", "Live Interval Analysis");
 
 void LiveIntervals::getAnalysisUsage(AnalysisUsage &AU) const {
+  AU.setPreservesCFG();
   AU.addRequired<AliasAnalysis>();
   AU.addPreserved<AliasAnalysis>();
   AU.addPreserved<LiveVariables>();
diff --git a/lib/CodeGen/LowerSubregs.cpp b/lib/CodeGen/LowerSubregs.cpp
index d7d50ba..8572995 100644
--- a/lib/CodeGen/LowerSubregs.cpp
+++ b/lib/CodeGen/LowerSubregs.cpp
@@ -39,6 +39,7 @@ namespace {
     }
 
     virtual void getAnalysisUsage(AnalysisUsage &AU) const {
+      AU.setPreservesCFG();
       AU.addPreservedID(MachineLoopInfoID);
       AU.addPreservedID(MachineDominatorsID);
       MachineFunctionPass::getAnalysisUsage(AU);
diff --git a/lib/CodeGen/MachineModuleInfo.cpp b/lib/CodeGen/MachineModuleInfo.cpp
index 20b819e..df9d7ca 100644
--- a/lib/CodeGen/MachineModuleInfo.cpp
+++ b/lib/CodeGen/MachineModuleInfo.cpp
@@ -306,6 +306,7 @@ struct DebugLabelFolder : public MachineFunctionPass {
   DebugLabelFolder() : MachineFunctionPass(&ID) {}
 
   virtual void getAnalysisUsage(AnalysisUsage &AU) const {
+    AU.setPreservesCFG();
     AU.addPreservedID(MachineLoopInfoID);
     AU.addPreservedID(MachineDominatorsID);
     MachineFunctionPass::getAnalysisUsage(AU);
diff --git a/lib/CodeGen/MachineSink.cpp b/lib/CodeGen/MachineSink.cpp
index 0e18fa7..7717fc8 100644
--- a/lib/CodeGen/MachineSink.cpp
+++ b/lib/CodeGen/MachineSink.cpp
@@ -40,6 +40,7 @@ namespace {
     virtual bool runOnMachineFunction(MachineFunction &MF);
     
     virtual void getAnalysisUsage(AnalysisUsage &AU) const {
+      AU.setPreservesCFG();
       MachineFunctionPass::getAnalysisUsage(AU);
       AU.addRequired<MachineDominatorTree>();
       AU.addPreserved<MachineDominatorTree>();
diff --git a/lib/CodeGen/PHIElimination.cpp b/lib/CodeGen/PHIElimination.cpp
index 56dca08..8071b0a 100644
--- a/lib/CodeGen/PHIElimination.cpp
+++ b/lib/CodeGen/PHIElimination.cpp
@@ -41,11 +41,12 @@ X("phi-node-elimination", "Eliminate PHI nodes for register allocation");
 const PassInfo *const llvm::PHIEliminationID = &X;
 
 void llvm::PHIElimination::getAnalysisUsage(AnalysisUsage &AU) const {
-   AU.addPreserved<LiveVariables>();
-   AU.addPreservedID(MachineLoopInfoID);
-   AU.addPreservedID(MachineDominatorsID);
-   MachineFunctionPass::getAnalysisUsage(AU);
- }
+  AU.setPreservesCFG();
+  AU.addPreserved<LiveVariables>();
+  AU.addPreservedID(MachineLoopInfoID);
+  AU.addPreservedID(MachineDominatorsID);
+  MachineFunctionPass::getAnalysisUsage(AU);
+}
 
 bool llvm::PHIElimination::runOnMachineFunction(MachineFunction &Fn) {
   MRI = &Fn.getRegInfo();
diff --git a/lib/CodeGen/PostRASchedulerList.cpp b/lib/CodeGen/PostRASchedulerList.cpp
index b90a6dd..3cd8847 100644
--- a/lib/CodeGen/PostRASchedulerList.cpp
+++ b/lib/CodeGen/PostRASchedulerList.cpp
@@ -59,6 +59,7 @@ namespace {
     PostRAScheduler() : MachineFunctionPass(&ID) {}
 
     void getAnalysisUsage(AnalysisUsage &AU) const {
+      AU.setPreservesCFG();
       AU.addRequired<MachineDominatorTree>();
       AU.addPreserved<MachineDominatorTree>();
       AU.addRequired<MachineLoopInfo>();
diff --git a/lib/CodeGen/PreAllocSplitting.cpp b/lib/CodeGen/PreAllocSplitting.cpp
index 580a6d1..46d9339 100644
--- a/lib/CodeGen/PreAllocSplitting.cpp
+++ b/lib/CodeGen/PreAllocSplitting.cpp
@@ -92,6 +92,7 @@ namespace {
     virtual bool runOnMachineFunction(MachineFunction &MF);
 
     virtual void getAnalysisUsage(AnalysisUsage &AU) const {
+      AU.setPreservesCFG();
       AU.addRequired<LiveIntervals>();
       AU.addPreserved<LiveIntervals>();
       AU.addRequired<LiveStacks>();
diff --git a/lib/CodeGen/PrologEpilogInserter.cpp b/lib/CodeGen/PrologEpilogInserter.cpp
index 9d5c55b..5aa37c9 100644
--- a/lib/CodeGen/PrologEpilogInserter.cpp
+++ b/lib/CodeGen/PrologEpilogInserter.cpp
@@ -111,6 +111,7 @@ bool PEI::runOnMachineFunction(MachineFunction &Fn) {
 
 #if 0
 void PEI::getAnalysisUsage(AnalysisUsage &AU) const {
+  AU.setPreservesCFG();
   if (ShrinkWrapping || ShrinkWrapFunc != "") {
     AU.addRequired<MachineLoopInfo>();
     AU.addRequired<MachineDominatorTree>();
diff --git a/lib/CodeGen/RegAllocLinearScan.cpp b/lib/CodeGen/RegAllocLinearScan.cpp
index 30c602d..fb97452 100644
--- a/lib/CodeGen/RegAllocLinearScan.cpp
+++ b/lib/CodeGen/RegAllocLinearScan.cpp
@@ -145,6 +145,7 @@ namespace {
     }
 
     virtual void getAnalysisUsage(AnalysisUsage &AU) const {
+      AU.setPreservesCFG();
       AU.addRequired<LiveIntervals>();
       if (StrongPHIElim)
         AU.addRequiredID(StrongPHIEliminationID);
diff --git a/lib/CodeGen/RegAllocLocal.cpp b/lib/CodeGen/RegAllocLocal.cpp
index b3d320a..e5d3a48 100644
--- a/lib/CodeGen/RegAllocLocal.cpp
+++ b/lib/CodeGen/RegAllocLocal.cpp
@@ -153,6 +153,7 @@ namespace {
     }
 
     virtual void getAnalysisUsage(AnalysisUsage &AU) const {
+      AU.setPreservesCFG();
       AU.addRequiredID(PHIEliminationID);
       AU.addRequiredID(TwoAddressInstructionPassID);
       MachineFunctionPass::getAnalysisUsage(AU);
diff --git a/lib/CodeGen/RegAllocPBQP.cpp b/lib/CodeGen/RegAllocPBQP.cpp
index f22c294..862ce00 100644
--- a/lib/CodeGen/RegAllocPBQP.cpp
+++ b/lib/CodeGen/RegAllocPBQP.cpp
@@ -77,15 +77,16 @@ namespace {
     }
 
     //! PBQP analysis usage.
-    virtual void getAnalysisUsage(AnalysisUsage &au) const {
-      au.addRequired<LiveIntervals>();
-      au.addRequiredTransitive<RegisterCoalescer>();
-      au.addRequired<LiveStacks>();
-      au.addPreserved<LiveStacks>();
-      au.addRequired<MachineLoopInfo>();
-      au.addPreserved<MachineLoopInfo>();
-      au.addRequired<VirtRegMap>();
-      MachineFunctionPass::getAnalysisUsage(au);
+    virtual void getAnalysisUsage(AnalysisUsage &AU) const {
+      AU.setPreservesCFG();
+      AU.addRequired<LiveIntervals>();
+      AU.addRequiredTransitive<RegisterCoalescer>();
+      AU.addRequired<LiveStacks>();
+      AU.addPreserved<LiveStacks>();
+      AU.addRequired<MachineLoopInfo>();
+      AU.addPreserved<MachineLoopInfo>();
+      AU.addRequired<VirtRegMap>();
+      MachineFunctionPass::getAnalysisUsage(AU);
     }
 
     //! Perform register allocation
diff --git a/lib/CodeGen/RegAllocSimple.cpp b/lib/CodeGen/RegAllocSimple.cpp
index 447e54c..2d4b9d6 100644
--- a/lib/CodeGen/RegAllocSimple.cpp
+++ b/lib/CodeGen/RegAllocSimple.cpp
@@ -70,6 +70,7 @@ namespace {
     bool runOnMachineFunction(MachineFunction &Fn);
 
     virtual void getAnalysisUsage(AnalysisUsage &AU) const {
+      AU.setPreservesCFG();
       AU.addRequiredID(PHIEliminationID);           // Eliminate PHI nodes
       MachineFunctionPass::getAnalysisUsage(AU);
     }
diff --git a/lib/CodeGen/SimpleRegisterCoalescing.cpp b/lib/CodeGen/SimpleRegisterCoalescing.cpp
index 2478612..1ff3af9 100644
--- a/lib/CodeGen/SimpleRegisterCoalescing.cpp
+++ b/lib/CodeGen/SimpleRegisterCoalescing.cpp
@@ -76,6 +76,7 @@ static RegisterAnalysisGroup<RegisterCoalescer, true/*The Default*/> V(X);
 const PassInfo *const llvm::SimpleRegisterCoalescingID = &X;
 
 void SimpleRegisterCoalescing::getAnalysisUsage(AnalysisUsage &AU) const {
+  AU.setPreservesCFG();
   AU.addRequired<LiveIntervals>();
   AU.addPreserved<LiveIntervals>();
   AU.addRequired<MachineLoopInfo>();
diff --git a/lib/CodeGen/StackSlotColoring.cpp b/lib/CodeGen/StackSlotColoring.cpp
index 17c8929..e491c28 100644
--- a/lib/CodeGen/StackSlotColoring.cpp
+++ b/lib/CodeGen/StackSlotColoring.cpp
@@ -97,6 +97,7 @@ namespace {
       MachineFunctionPass(&ID), ColorWithRegs(RegColor), NextColor(-1) {}
     
     virtual void getAnalysisUsage(AnalysisUsage &AU) const {
+      AU.setPreservesCFG();
       AU.addRequired<LiveStacks>();
       AU.addRequired<VirtRegMap>();
       AU.addPreserved<VirtRegMap>();      
diff --git a/lib/CodeGen/StrongPHIElimination.cpp b/lib/CodeGen/StrongPHIElimination.cpp
index efd19fa..a352e36 100644
--- a/lib/CodeGen/StrongPHIElimination.cpp
+++ b/lib/CodeGen/StrongPHIElimination.cpp
@@ -71,6 +71,7 @@ namespace {
     bool runOnMachineFunction(MachineFunction &Fn);
     
     virtual void getAnalysisUsage(AnalysisUsage &AU) const {
+      AU.setPreservesCFG();
       AU.addRequired<MachineDominatorTree>();
       AU.addRequired<LiveIntervals>();
       
diff --git a/lib/CodeGen/TwoAddressInstructionPass.cpp b/lib/CodeGen/TwoAddressInstructionPass.cpp
index d205e07..b18d1ef 100644
--- a/lib/CodeGen/TwoAddressInstructionPass.cpp
+++ b/lib/CodeGen/TwoAddressInstructionPass.cpp
@@ -113,6 +113,7 @@ namespace {
     TwoAddressInstructionPass() : MachineFunctionPass(&ID) {}
 
     virtual void getAnalysisUsage(AnalysisUsage &AU) const {
+      AU.setPreservesCFG();
       AU.addPreserved<LiveVariables>();
       AU.addPreservedID(MachineLoopInfoID);
       AU.addPreservedID(MachineDominatorsID);