LDA analysis output scaffolding.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74400 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/llvm/Analysis/LoopDependenceAnalysis.h b/include/llvm/Analysis/LoopDependenceAnalysis.h
index c69bc60..0c3dade 100644
--- a/include/llvm/Analysis/LoopDependenceAnalysis.h
+++ b/include/llvm/Analysis/LoopDependenceAnalysis.h
@@ -21,11 +21,12 @@
#define LLVM_ANALYSIS_LOOP_DEPENDENCE_ANALYSIS_H
#include "llvm/Analysis/LoopPass.h"
+#include "llvm/Support/raw_ostream.h"
+#include <iosfwd>
namespace llvm {
class AnalysisUsage;
- class LoopPass;
class ScalarEvolution;
class LoopDependenceAnalysis : public LoopPass {
@@ -39,6 +40,12 @@
bool runOnLoop(Loop*, LPPassManager&);
virtual void getAnalysisUsage(AnalysisUsage&) const;
+
+ void print(raw_ostream&, const Module* = 0) const;
+ virtual void print(std::ostream&, const Module* = 0) const;
+ void print(std::ostream *OS, const Module *M = 0) const {
+ if (OS) print(*OS, M);
+ }
}; // class LoopDependenceAnalysis
diff --git a/lib/Analysis/LoopDependenceAnalysis.cpp b/lib/Analysis/LoopDependenceAnalysis.cpp
index 172a2be..8f3e6ba 100644
--- a/lib/Analysis/LoopDependenceAnalysis.cpp
+++ b/lib/Analysis/LoopDependenceAnalysis.cpp
@@ -43,5 +43,23 @@
void LoopDependenceAnalysis::getAnalysisUsage(AnalysisUsage &AU) const {
AU.setPreservesAll();
- AU.addRequired<ScalarEvolution>();
+ AU.addRequiredTransitive<ScalarEvolution>();
+}
+
+static void PrintLoopInfo(
+ raw_ostream &OS, const LoopDependenceAnalysis *LDA, const Loop *L) {
+ if (!L->empty()) return; // ignore non-innermost loops
+
+ OS << "Loop at depth " << L->getLoopDepth() << ", header block: ";
+ WriteAsOperand(OS, L->getHeader(), false);
+ OS << "\n";
+}
+
+void LoopDependenceAnalysis::print(raw_ostream &OS, const Module*) const {
+ PrintLoopInfo(OS, this, this->L);
+}
+
+void LoopDependenceAnalysis::print(std::ostream &OS, const Module *M) const {
+ raw_os_ostream os(OS);
+ print(os, M);
}