//
//===----------------------------------------------------------------------===//
//
-// This file implements the pass that optimize code placement and align loop
-// headers to target specific alignment boundary.
+// This file implements the pass that optimizes code placement and aligns loop
+// headers to target-specific alignment boundaries.
//
//===----------------------------------------------------------------------===//
#define DEBUG_TYPE "code-placement"
-#include "llvm/CodeGen/MachineLoopInfo.h"
-#include "llvm/CodeGen/MachineFunctionPass.h"
#include "llvm/CodeGen/Passes.h"
+#include "llvm/ADT/Statistic.h"
+#include "llvm/CodeGen/MachineFunctionPass.h"
+#include "llvm/CodeGen/MachineLoopInfo.h"
+#include "llvm/Support/Compiler.h"
+#include "llvm/Support/Debug.h"
#include "llvm/Target/TargetInstrInfo.h"
#include "llvm/Target/TargetLowering.h"
#include "llvm/Target/TargetMachine.h"
-#include "llvm/Support/Compiler.h"
-#include "llvm/Support/Debug.h"
-#include "llvm/ADT/Statistic.h"
using namespace llvm;
STATISTIC(NumLoopsAligned, "Number of loops aligned");
CodePlacementOpt() : MachineFunctionPass(ID) {}
virtual bool runOnMachineFunction(MachineFunction &MF);
- virtual const char *getPassName() const {
- return "Code Placement Optimizater";
- }
virtual void getAnalysisUsage(AnalysisUsage &AU) const {
AU.addRequired<MachineLoopInfo>();
char CodePlacementOpt::ID = 0;
} // end anonymous namespace
-FunctionPass *llvm::createCodePlacementOptPass() {
- return new CodePlacementOpt();
-}
+char &llvm::CodePlacementOptID = CodePlacementOpt::ID;
+INITIALIZE_PASS(CodePlacementOpt, "code-placement",
+ "Code Placement Optimizer", false, false)
/// HasFallthrough - Test whether the given branch has a fallthrough, either as
/// a plain fallthrough or as a fallthrough case of a conditional branch.
// fallthrough edge.
if (!Prior->isSuccessor(End))
goto next_pred;
- // Otherwise we can stop scanning and procede to move the blocks.
+ // Otherwise we can stop scanning and proceed to move the blocks.
break;
}
// If we hit a switch or something complicated, don't move anything
// Determine a position to move orphaned loop blocks to. If TopMBB is not
// entered via fallthrough and BotMBB is exited via fallthrough, prepend them
- // to the top of the loop to avoid loosing that fallthrough. Otherwise append
+ // to the top of the loop to avoid losing that fallthrough. Otherwise append
// them to the bottom, even if it previously had a fallthrough, on the theory
// that it's worth an extra branch to keep the loop contiguous.
MachineFunction::iterator InsertPt =
///
bool CodePlacementOpt::AlignLoops(MachineFunction &MF) {
const Function *F = MF.getFunction();
- if (F->hasFnAttr(Attribute::OptimizeForSize))
+ if (F->getFnAttributes().hasAttribute(Attributes::OptimizeForSize))
return false;
unsigned Align = TLI->getPrefLoopAlignment();