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Don't recalculate the loop info and loop dominators analyses if they're

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preserved.

llvm-svn: 45596
This commit is contained in:
Bill Wendling
2008-01-04 20:54:55 +00:00
parent 2bd541c5ff
commit 0c209430b4
8 changed files with 34 additions and 6 deletions
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11
llvm/lib/CodeGen/MachineLoopInfo.cpp
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@@ -16,15 +16,20 @@
#include "llvm/CodeGen/MachineLoopInfo.h"
#include "llvm/CodeGen/MachineDominators.h"
#include "llvm/CodeGen/Passes.h"
using namespace llvm;
TEMPLATE_INSTANTIATION(class LoopBase<MachineBasicBlock>);
TEMPLATE_INSTANTIATION(class LoopInfoBase<MachineBasicBlock>);
char MachineLoopInfo::ID = 0;
static RegisterPass<MachineLoopInfo>
X("machine-loops", "Machine Natural Loop Construction", true);
namespace {
char MachineLoopInfo::ID = 0;
RegisterPass<MachineLoopInfo>
X("machine-loops", "Machine Natural Loop Construction", true);
}
const PassInfo *llvm::MachineLoopInfoID = X.getPassInfo();
bool MachineLoopInfo::runOnMachineFunction(MachineFunction &) {
releaseMemory();