R600/SI: Using SGPRs is illegal for instructions that read carry-out from VCC

[oota-llvm.git] / lib / Analysis / LoopPass.cpp

diff --git a/lib/Analysis/LoopPass.cpp b/lib/Analysis/LoopPass.cpp
index acf2ba63bd321d650ac5952bc138314efec16f80..38e753f129e9393f9175d5c2c5ed0c897278c840 100644 (file)
--- a/lib/Analysis/LoopPass.cpp
+++ b/lib/Analysis/LoopPass.cpp
@@ -14,7 +14,7 @@
 //===----------------------------------------------------------------------===//
 
 #include "llvm/Analysis/LoopPass.h"
-#include "llvm/Assembly/PrintModulePass.h"
+#include "llvm/IR/IRPrintingPasses.h"
 #include "llvm/Support/Debug.h"
 #include "llvm/Support/Timer.h"
 using namespace llvm;
@@ -33,11 +33,11 @@ public:
   PrintLoopPass(const std::string &B, raw_ostream &o)
       : LoopPass(ID), Banner(B), Out(o) {}
 
-  virtual void getAnalysisUsage(AnalysisUsage &AU) const {
+  void getAnalysisUsage(AnalysisUsage &AU) const override {
     AU.setPreservesAll();
   }
 
-  bool runOnLoop(Loop *L, LPPassManager &) {
+  bool runOnLoop(Loop *L, LPPassManager &) override {
     Out << Banner;
     for (Loop::block_iterator b = L->block_begin(), be = L->block_end();
          b != be;
@@ -365,3 +365,17 @@ void LoopPass::assignPassManager(PMStack &PMS,
 
   LPPM->add(this);
 }
+
+// Containing function has Attribute::OptimizeNone and transformation
+// passes should skip it.
+bool LoopPass::skipOptnoneFunction(const Loop *L) const {
+  const Function *F = L->getHeader()->getParent();
+  if (F && F->hasFnAttribute(Attribute::OptimizeNone)) {
+    // FIXME: Report this to dbgs() only once per function.
+    DEBUG(dbgs() << "Skipping pass '" << getPassName()
+          << "' in function " << F->getName() << "\n");
+    // FIXME: Delete loop from pass manager's queue?
+    return true;
+  }
+  return false;
+}