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Fix overly conservative spill interval computation.

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llvm-svn: 11574
This commit is contained in:
Alkis Evlogimenos 2004-02-18 03:35:38 +00:00
parent 7290ef1f5c
commit 5c90efed55
1 changed files with 3 additions and 4 deletions
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7
lib/CodeGen/LiveIntervals.cpp
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@ -191,10 +191,9 @@ void LiveIntervals::updateSpilledInterval(Interval& li)
if (mop.isRegister()) {
unsigned reg = mop.getReg();
if (rep(reg) == li.reg) {
if (mop.isUse())
li.addRange(index, index+2);
else
li.addRange(index+1, index+2);
unsigned start = mop.isUse() ? index : index+1;
unsigned end = mop.isDef() ? index+2 : index+1;
li.addRange(start, end);
}
}
}