Don't #include heavy Dominators.h file in LoopInfo.h. This change reduces

overall time of LLVM compilation by ~1%.

llvm-svn: 196667

llvm/include/llvm/Analysis/LoopInfo.h

@@ -33,8 +33,10 @@
 #include "llvm/ADT/DenseMap.h"
 #include "llvm/ADT/DenseSet.h"
 #include "llvm/ADT/GraphTraits.h"
+#include "llvm/ADT/SmallPtrSet.h"
 #include "llvm/ADT/SmallVector.h"
-#include "llvm/Analysis/Dominators.h"
+#include "llvm/IR/Instruction.h"
+#include "llvm/Support/CFG.h"
 #include "llvm/Pass.h"
 #include <algorithm>
 
@@ -53,6 +55,7 @@ class Loop;
 class MDNode;
 class PHINode;
 class raw_ostream;
+template<class N> class DominatorTreeBase;
 template<class N, class M> class LoopInfoBase;
 template<class N, class M> class LoopBase;
 

llvm/include/llvm/Analysis/LoopInfoImpl.h

@@ -15,8 +15,10 @@
 #ifndef LLVM_ANALYSIS_LOOPINFOIMPL_H
 #define LLVM_ANALYSIS_LOOPINFOIMPL_H
 
+#include "llvm/ADT/DepthFirstIterator.h"
 #include "llvm/ADT/PostOrderIterator.h"
 #include "llvm/ADT/STLExtras.h"
+#include "llvm/Analysis/Dominators.h"
 #include "llvm/Analysis/LoopInfo.h"
 
 namespace llvm {

llvm/include/llvm/CodeGen/MachineLoopInfo.h

@@ -31,6 +31,7 @@
 #define LLVM_CODEGEN_MACHINELOOPINFO_H
 
 #include "llvm/Analysis/LoopInfo.h"
+#include "llvm/CodeGen/MachineBasicBlock.h"
 #include "llvm/CodeGen/MachineFunctionPass.h"
 
 namespace llvm {

llvm/lib/Analysis/ScalarEvolutionExpander.cpp

@@ -16,6 +16,7 @@
 #include "llvm/Analysis/ScalarEvolutionExpander.h"
 #include "llvm/ADT/SmallSet.h"
 #include "llvm/ADT/STLExtras.h"
+#include "llvm/Analysis/Dominators.h"
 #include "llvm/Analysis/LoopInfo.h"
 #include "llvm/Analysis/TargetTransformInfo.h"
 #include "llvm/IR/DataLayout.h"

llvm/lib/Transforms/Scalar/LoopIdiomRecognize.cpp

@@ -45,6 +45,7 @@
 #include "llvm/Transforms/Scalar.h"
 #include "llvm/ADT/Statistic.h"
 #include "llvm/Analysis/AliasAnalysis.h"
+#include "llvm/Analysis/Dominators.h"
 #include "llvm/Analysis/LoopPass.h"
 #include "llvm/Analysis/ScalarEvolutionExpander.h"
 #include "llvm/Analysis/ScalarEvolutionExpressions.h"

llvm/lib/Transforms/Scalar/LoopRerollPass.cpp

@@ -18,6 +18,7 @@
 #include "llvm/ADT/STLExtras.h"
 #include "llvm/Analysis/AliasAnalysis.h"
 #include "llvm/Analysis/AliasSetTracker.h"
+#include "llvm/Analysis/Dominators.h"
 #include "llvm/Analysis/LoopPass.h"
 #include "llvm/Analysis/ScalarEvolution.h"
 #include "llvm/Analysis/ScalarEvolutionExpander.h"

llvm/lib/Transforms/Scalar/LoopRotation.cpp

@@ -15,6 +15,7 @@
 #include "llvm/Transforms/Scalar.h"
 #include "llvm/ADT/Statistic.h"
 #include "llvm/Analysis/CodeMetrics.h"
+#include "llvm/Analysis/Dominators.h"
 #include "llvm/Analysis/InstructionSimplify.h"
 #include "llvm/Analysis/LoopPass.h"
 #include "llvm/Analysis/ScalarEvolution.h"

llvm/lib/Transforms/Scalar/LoopUnrollPass.cpp

@@ -15,6 +15,7 @@
 #define DEBUG_TYPE "loop-unroll"
 #include "llvm/Transforms/Scalar.h"
 #include "llvm/Analysis/CodeMetrics.h"
+#include "llvm/Analysis/Dominators.h"
 #include "llvm/Analysis/LoopPass.h"
 #include "llvm/Analysis/ScalarEvolution.h"
 #include "llvm/Analysis/TargetTransformInfo.h"

llvm/lib/Transforms/Utils/LoopUnroll.cpp

@@ -19,6 +19,7 @@
 #define DEBUG_TYPE "loop-unroll"
 #include "llvm/Transforms/Utils/UnrollLoop.h"
 #include "llvm/ADT/Statistic.h"
+#include "llvm/Analysis/Dominators.h"
 #include "llvm/Analysis/InstructionSimplify.h"
 #include "llvm/Analysis/LoopIterator.h"
 #include "llvm/Analysis/LoopPass.h"

llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp

@@ -23,6 +23,7 @@
 #include "llvm/ADT/PostOrderIterator.h"
 #include "llvm/ADT/SetVector.h"
 #include "llvm/Analysis/AliasAnalysis.h"
+#include "llvm/Analysis/Dominators.h"
 #include "llvm/Analysis/ScalarEvolution.h"
 #include "llvm/Analysis/ScalarEvolutionExpressions.h"
 #include "llvm/Analysis/TargetTransformInfo.h"