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Fix overly conservative spill interval computation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11574 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -191,10 +191,9 @@ void LiveIntervals::updateSpilledInterval(Interval& li)
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if (mop.isRegister()) {
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unsigned reg = mop.getReg();
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if (rep(reg) == li.reg) {
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if (mop.isUse())
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li.addRange(index, index+2);
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else
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li.addRange(index+1, index+2);
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unsigned start = mop.isUse() ? index : index+1;
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unsigned end = mop.isDef() ? index+2 : index+1;
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li.addRange(start, end);
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}
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}
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}
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