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Fix PR2112: don't run loop aligner if target doesn't have a TargetLowering object.

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llvm-svn: 47755
This commit is contained in:
Evan Cheng 2008-02-29 17:52:15 +00:00
parent 75f5d14574
commit 3fbaf52776
1 changed files with 5 additions and 3 deletions
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8
lib/CodeGen/LoopAligner.cpp
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@ -24,8 +24,6 @@ using namespace llvm;
namespace {
class LoopAligner : public MachineFunctionPass {
const TargetLowering *TLI;
public:
static char ID;
LoopAligner() : MachineFunctionPass((intptr_t)&ID) {}
@ -51,7 +49,11 @@ bool LoopAligner::runOnMachineFunction(MachineFunction &MF) {
if (MLI->begin() == MLI->end())
return false; // No loops.
unsigned Align = MF.getTarget().getTargetLowering()->getPrefLoopAlignment();
const TargetLowering *TLI = MF.getTarget().getTargetLowering();
if (!TLI)
return false;
unsigned Align = TLI->getPrefLoopAlignment();
if (!Align)
return false; // Don't care about loop alignment.