commit bbeeb2a61ea19fbb5449260165b56c40fdc4860b
author Evan Cheng <evan.cheng@apple.com> Mon Sep 22 20:58:04 2008 +0000
committer Evan Cheng <evan.cheng@apple.com> Mon Sep 22 20:58:04 2008 +0000
tree afd3e364209c9b349e6a70ca3ee71c086ff7297a
parent f74185b80e07d58208b24f0314d94853d48ec9bd

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/BranchFolding.cpp

diff --git a/lib/CodeGen/BranchFolding.cpp b/lib/CodeGen/BranchFolding.cpp
index 1051dc7..8828265 100644
--- a/lib/CodeGen/BranchFolding.cpp
+++ b/lib/CodeGen/BranchFolding.cpp
@@ -48,12 +48,12 @@
   struct VISIBILITY_HIDDEN BranchFolder : public MachineFunctionPass {
     static char ID;
     explicit BranchFolder(bool defaultEnableTailMerge) : 
-        MachineFunctionPass(&ID) {
-          switch (FlagEnableTailMerge) {
-          case cl::BOU_UNSET: EnableTailMerge = defaultEnableTailMerge; break;
-          case cl::BOU_TRUE: EnableTailMerge = true; break;
-          case cl::BOU_FALSE: EnableTailMerge = false; break;
-          }
+      MachineFunctionPass(&ID) {
+      switch (FlagEnableTailMerge) {
+        case cl::BOU_UNSET: EnableTailMerge = defaultEnableTailMerge; break;
+        case cl::BOU_TRUE: EnableTailMerge = true; break;
+        case cl::BOU_FALSE: EnableTailMerge = false; break;
+      }
     }
 
     virtual bool runOnMachineFunction(MachineFunction &MF);

lib/CodeGen/LiveStackAnalysis.cpp

diff --git a/lib/CodeGen/LiveStackAnalysis.cpp b/lib/CodeGen/LiveStackAnalysis.cpp
index 9358c10..2baf699 100644
--- a/lib/CodeGen/LiveStackAnalysis.cpp
+++ b/lib/CodeGen/LiveStackAnalysis.cpp
@@ -26,6 +26,7 @@
 
 void LiveStacks::getAnalysisUsage(AnalysisUsage &AU) const {
   AU.setPreservesAll();
+  MachineFunctionPass::getAnalysisUsage(AU);
 }
 
 void LiveStacks::releaseMemory() {

lib/CodeGen/LoopAligner.cpp

diff --git a/lib/CodeGen/LoopAligner.cpp b/lib/CodeGen/LoopAligner.cpp
index 51c6356..906e888 100644
--- a/lib/CodeGen/LoopAligner.cpp
+++ b/lib/CodeGen/LoopAligner.cpp
@@ -34,6 +34,7 @@
     virtual void getAnalysisUsage(AnalysisUsage &AU) const {
       AU.addRequired<MachineLoopInfo>();
       AU.addPreserved<MachineLoopInfo>();
+      AU.setPreservesAll();
       MachineFunctionPass::getAnalysisUsage(AU);
     }
   };

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 @@
       return "Subregister lowering instruction pass";
     }
 
+    virtual void getAnalysisUsage(AnalysisUsage &AU) const {
+      AU.setPreservesAll();
+      MachineFunctionPass::getAnalysisUsage(AU);
+    }
+
     /// runOnMachineFunction - pass entry point
     bool runOnMachineFunction(MachineFunction&);
     

lib/CodeGen/MachineModuleInfo.cpp

diff --git a/lib/CodeGen/MachineModuleInfo.cpp b/lib/CodeGen/MachineModuleInfo.cpp
index 69f8d3c..9843ff2 100644
--- a/lib/CodeGen/MachineModuleInfo.cpp
+++ b/lib/CodeGen/MachineModuleInfo.cpp
@@ -2013,6 +2013,11 @@
   static char ID;
   DebugLabelFolder() : MachineFunctionPass(&ID) {}
 
+  virtual void getAnalysisUsage(AnalysisUsage &AU) const {
+    AU.setPreservesAll();
+    MachineFunctionPass::getAnalysisUsage(AU);
+  }
+
   virtual bool runOnMachineFunction(MachineFunction &MF);
   virtual const char *getPassName() const { return "Label Folder"; }
 };

lib/CodeGen/PrologEpilogInserter.cpp

diff --git a/lib/CodeGen/PrologEpilogInserter.cpp b/lib/CodeGen/PrologEpilogInserter.cpp
index 51d3698..8efef1b 100644
--- a/lib/CodeGen/PrologEpilogInserter.cpp
+++ b/lib/CodeGen/PrologEpilogInserter.cpp
@@ -41,6 +41,11 @@
       return "Prolog/Epilog Insertion & Frame Finalization";
     }
 
+    virtual void getAnalysisUsage(AnalysisUsage &AU) const {
+      AU.setPreservesAll();
+      MachineFunctionPass::getAnalysisUsage(AU);
+    }
+
     /// runOnMachineFunction - Insert prolog/epilog code and replace abstract
     /// frame indexes with appropriate references.
     ///

lib/CodeGen/SimpleRegisterCoalescing.cpp

diff --git a/lib/CodeGen/SimpleRegisterCoalescing.cpp b/lib/CodeGen/SimpleRegisterCoalescing.cpp
index 8899657..05e0505 100644
--- a/lib/CodeGen/SimpleRegisterCoalescing.cpp
+++ b/lib/CodeGen/SimpleRegisterCoalescing.cpp
@@ -67,13 +67,13 @@
 const PassInfo *const llvm::SimpleRegisterCoalescingID = &X;
 
 void SimpleRegisterCoalescing::getAnalysisUsage(AnalysisUsage &AU) const {
+  AU.addRequired<LiveIntervals>();
   AU.addPreserved<LiveIntervals>();
+  AU.addRequired<MachineLoopInfo>();
   AU.addPreserved<MachineLoopInfo>();
   AU.addPreservedID(MachineDominatorsID);
   AU.addPreservedID(PHIEliminationID);
   AU.addPreservedID(TwoAddressInstructionPassID);
-  AU.addRequired<LiveIntervals>();
-  AU.addRequired<MachineLoopInfo>();
   MachineFunctionPass::getAnalysisUsage(AU);
 }
 

lib/CodeGen/StackSlotColoring.cpp

diff --git a/lib/CodeGen/StackSlotColoring.cpp b/lib/CodeGen/StackSlotColoring.cpp
index ab980a1..1b5d417 100644
--- a/lib/CodeGen/StackSlotColoring.cpp
+++ b/lib/CodeGen/StackSlotColoring.cpp
@@ -66,6 +66,7 @@
     
     virtual void getAnalysisUsage(AnalysisUsage &AU) const {
       AU.addRequired<LiveStacks>();
+      AU.setPreservesAll();
       MachineFunctionPass::getAnalysisUsage(AU);
     }