change the fp comparison instructions to not have %st0 explicitly

[oota-llvm.git] / lib / Transforms / IPO / LoopExtractor.cpp

diff --git a/lib/Transforms/IPO/LoopExtractor.cpp b/lib/Transforms/IPO/LoopExtractor.cpp
index 02ac3bb903c75b79f1e4a69f8c92889a31e7528d..848944dc9381ba48c92f3d542e962c4567e46f79 100644 (file)
--- a/lib/Transforms/IPO/LoopExtractor.cpp
+++ b/lib/Transforms/IPO/LoopExtractor.cpp
@@ -22,7 +22,6 @@
 #include "llvm/Analysis/Dominators.h"
 #include "llvm/Analysis/LoopPass.h"
 #include "llvm/Support/CommandLine.h"
-#include "llvm/Support/Compiler.h"
 #include "llvm/Transforms/Scalar.h"
 #include "llvm/Transforms/Utils/FunctionUtils.h"
 #include "llvm/ADT/Statistic.h"
@@ -33,12 +32,14 @@ using namespace llvm;
 STATISTIC(NumExtracted, "Number of loops extracted");
 
 namespace {
-  struct VISIBILITY_HIDDEN LoopExtractor : public LoopPass {
+  struct LoopExtractor : public LoopPass {
     static char ID; // Pass identification, replacement for typeid
     unsigned NumLoops;
 
     explicit LoopExtractor(unsigned numLoops = ~0) 
-      : LoopPass(&ID), NumLoops(numLoops) {}
+      : LoopPass(ID), NumLoops(numLoops) {
+        initializeLoopExtractorPass(*PassRegistry::getPassRegistry());
+      }
 
     virtual bool runOnLoop(Loop *L, LPPassManager &LPM);
 
@@ -51,8 +52,13 @@ namespace {
 }
 
 char LoopExtractor::ID = 0;
-static RegisterPass<LoopExtractor>
-X("loop-extract", "Extract loops into new functions");
+INITIALIZE_PASS_BEGIN(LoopExtractor, "loop-extract",
+                "Extract loops into new functions", false, false)
+INITIALIZE_PASS_DEPENDENCY(BreakCriticalEdges)
+INITIALIZE_PASS_DEPENDENCY(LoopSimplify)
+INITIALIZE_PASS_DEPENDENCY(DominatorTree)
+INITIALIZE_PASS_END(LoopExtractor, "loop-extract",
+                "Extract loops into new functions", false, false)
 
 namespace {
   /// SingleLoopExtractor - For bugpoint.
@@ -63,8 +69,8 @@ namespace {
 } // End anonymous namespace
 
 char SingleLoopExtractor::ID = 0;
-static RegisterPass<SingleLoopExtractor>
-Y("loop-extract-single", "Extract at most one loop into a new function");
+INITIALIZE_PASS(SingleLoopExtractor, "loop-extract-single",
+                "Extract at most one loop into a new function", false, false)
 
 // createLoopExtractorPass - This pass extracts all natural loops from the
 // program into a function if it can.
@@ -76,6 +82,10 @@ bool LoopExtractor::runOnLoop(Loop *L, LPPassManager &LPM) {
   if (L->getParentLoop())
     return false;
 
+  // If LoopSimplify form is not available, stay out of trouble.
+  if (!L->isLoopSimplifyForm())
+    return false;
+
   DominatorTree &DT = getAnalysis<DominatorTree>();
   bool Changed = false;
 
@@ -144,27 +154,26 @@ namespace {
     std::vector<std::pair<std::string, std::string> > BlocksToNotExtractByName;
   public:
     static char ID; // Pass identification, replacement for typeid
-    explicit BlockExtractorPass(const std::vector<BasicBlock*> &B) 
-      : ModulePass(&ID), BlocksToNotExtract(B) {
+    BlockExtractorPass() : ModulePass(ID) {
       if (!BlockFile.empty())
         LoadFile(BlockFile.c_str());
     }
-    BlockExtractorPass() : ModulePass(&ID) {}
 
     bool runOnModule(Module &M);
   };
 }
 
 char BlockExtractorPass::ID = 0;
-static RegisterPass<BlockExtractorPass>
-XX("extract-blocks", "Extract Basic Blocks From Module (for bugpoint use)");
+INITIALIZE_PASS(BlockExtractorPass, "extract-blocks",
+                "Extract Basic Blocks From Module (for bugpoint use)",
+                false, false)
 
 // createBlockExtractorPass - This pass extracts all blocks (except those
 // specified in the argument list) from the functions in the module.
 //
-ModulePass *llvm::createBlockExtractorPass(const std::vector<BasicBlock*> &BTNE)
+ModulePass *llvm::createBlockExtractorPass()
 {
-  return new BlockExtractorPass(BTNE);
+  return new BlockExtractorPass();
 }
 
 void BlockExtractorPass::LoadFile(const char *Filename) {