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If a function has no stack frame at all, dynamic realignment isn't necessary.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86057 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -514,6 +514,7 @@ needsStackRealignment(const MachineFunction &MF) const {
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unsigned StackAlign = MF.getTarget().getFrameInfo()->getStackAlignment();
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return (RealignStack &&
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!AFI->isThumb1OnlyFunction() &&
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AFI->hasStackFrame() &&
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(MFI->getMaxAlignment() > StackAlign) &&
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!MFI->hasVarSizedObjects());
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}
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