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authorOwen Anderson <resistor@mac.com>2008-04-29 20:06:54 +0000
committerOwen Anderson <resistor@mac.com>2008-04-29 20:06:54 +0000
commit0396cd33ca2d879d1cf0e9b252ce43a760449fff (patch)
tree5baa704fad12c281aed3e62e064251d0d8bd4fae /lib/Transforms/Scalar/LoopDeletion.cpp
parentd6864fee978ae34b3a70ce2d1e53295a551055f5 (diff)
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Rename DeadLoopElimination to LoopDeletion, part 2.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50437 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Transforms/Scalar/LoopDeletion.cpp')
-rw-r--r--lib/Transforms/Scalar/LoopDeletion.cpp26
1 files changed, 12 insertions, 14 deletions
diff --git a/lib/Transforms/Scalar/LoopDeletion.cpp b/lib/Transforms/Scalar/LoopDeletion.cpp
index fc11cab809..fd043fdc86 100644
--- a/lib/Transforms/Scalar/LoopDeletion.cpp
+++ b/lib/Transforms/Scalar/LoopDeletion.cpp
@@ -1,4 +1,4 @@
-//===- DeadLoopElimination.cpp - Dead Loop Elimination Pass ---------------===//
+//===- LoopDeletion.cpp - Dead Loop Deletion Pass ---------------===//
//
// The LLVM Compiler Infrastructure
//
@@ -11,11 +11,9 @@
//
//===----------------------------------------------------------------------===//
-#define DEBUG_TYPE "dead-loop"
+#define DEBUG_TYPE "loop-delete"
#include "llvm/Transforms/Scalar.h"
-#include "llvm/Instruction.h"
-#include "llvm/Analysis/LoopInfo.h"
#include "llvm/Analysis/LoopPass.h"
#include "llvm/ADT/Statistic.h"
#include "llvm/ADT/SmallVector.h"
@@ -25,10 +23,10 @@ using namespace llvm;
STATISTIC(NumDeleted, "Number of loops deleted");
namespace {
- class VISIBILITY_HIDDEN DeadLoopElimination : public LoopPass {
+ class VISIBILITY_HIDDEN LoopDeletion : public LoopPass {
public:
static char ID; // Pass ID, replacement for typeid
- DeadLoopElimination() : LoopPass((intptr_t)&ID) { }
+ LoopDeletion() : LoopPass((intptr_t)&ID) { }
// Possibly eliminate loop L if it is dead.
bool runOnLoop(Loop* L, LPPassManager& LPM);
@@ -50,15 +48,15 @@ namespace {
}
};
- char DeadLoopElimination::ID = 0;
- RegisterPass<DeadLoopElimination> X ("dead-loop", "Eliminate dead loops");
+ char LoopDeletion::ID = 0;
+ RegisterPass<LoopDeletion> X ("loop-deletion", "Delete dead loops");
}
-LoopPass* llvm::createDeadLoopEliminationPass() {
- return new DeadLoopElimination();
+LoopPass* llvm::createLoopDeletionPass() {
+ return new LoopDeletion();
}
-bool DeadLoopElimination::SingleDominatingExit(Loop* L) {
+bool LoopDeletion::SingleDominatingExit(Loop* L) {
SmallVector<BasicBlock*, 4> exitingBlocks;
L->getExitingBlocks(exitingBlocks);
@@ -76,7 +74,7 @@ bool DeadLoopElimination::SingleDominatingExit(Loop* L) {
return 0;
}
-bool DeadLoopElimination::IsLoopInvariantInst(Instruction *I, Loop* L) {
+bool LoopDeletion::IsLoopInvariantInst(Instruction *I, Loop* L) {
// PHI nodes are not loop invariant if defined in the loop.
if (isa<PHINode>(I) && L->contains(I->getParent()))
return false;
@@ -90,7 +88,7 @@ bool DeadLoopElimination::IsLoopInvariantInst(Instruction *I, Loop* L) {
return true;
}
-bool DeadLoopElimination::IsLoopDead(Loop* L) {
+bool LoopDeletion::IsLoopDead(Loop* L) {
SmallVector<BasicBlock*, 1> exitingBlocks;
L->getExitingBlocks(exitingBlocks);
BasicBlock* exitingBlock = exitingBlocks[0];
@@ -130,7 +128,7 @@ bool DeadLoopElimination::IsLoopDead(Loop* L) {
/// observable behavior of the program other than finite running time. Note
/// we do ensure that this never remove a loop that might be infinite, as doing
/// so could change the halting/non-halting nature of a program.
-bool DeadLoopElimination::runOnLoop(Loop* L, LPPassManager& LPM) {
+bool LoopDeletion::runOnLoop(Loop* L, LPPassManager& LPM) {
// Don't remove loops for which we can't solve the trip count.
// They could be infinite, in which case we'd be changing program behavior.
if (L->getTripCount())